Vehicle report

2021 FREIGHTLINER CASCADIA

Service bulletins

450 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

TEM-11-00001

Other

Truck Equipment Manufacturer upfit guide for Detroit Assurance Forward Radar Relocation and Adjustment

TSB-42-080-FTL

Service Bulletin/Repair Instructions

Revised Technical Service Bulletin for ABS Wheel Speed Fault Code Correction for MBSP Equipped Vehicles. Updated frequently asked questions.

CXA 06_26_Utility Lamp

Other

CX Advocate for Utility Lamp water intrusion

TSB-26-057-FTL

Service Bulletin/Repair Instructions

Revised Technical Service Bulletin for DT12 OVX Transmission Refresh

CXA 03_26_ABS LA Fault

Other

CX Advocate for 1810/02 ABS longitudinal acceleration fault (TSB-54-104-WST,TSB-54-379-FTL)

ICI26-003

Other

Important Campaign Information letter for SF706 - campaign suspended

FleetCom_ESC Warning Lamp

Other

Fleet Communications for TSB-54-379-FTL & TSB-54-104-WST ESC warning lamp and ECU replacement

FleetCom_SF706

Other

Fleet Communications for SF706 - Cascadia axle conversion

SF706-Bulletin

Service Campaign

Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem (AT) 6x4 to New Final Drive (NFD)

SF706-DLR LTR

Service Campaign

Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem (AT) 6x4 to New Final Drive (NFD)

SF706-OWN LTR

Service Campaign

Field Service campaign for Cascadia Axle Conversion: Adaptive Tandem (AT) 6x4 to New Final Drive (NFD)

MyCom_02062026-1

Other

My Communications for update on UFU R61709 Fuel Filters

FleetCom_Frnt Susp Bush

Other

Fleet Communications for composite front suspension bushing

TSB-54-379-FTL

Service Bulletin/Repair Instructions

Revised Technical Service Bulletin for ESC Warning Lamp and ECU Replacement

TSB-26-055-FTL

Service Bulletin/Repair Instructions

Revised Technical Service Bulletin for DT12 Excessive Wear

CXA_01_26_Trans Support

Other

CX Advocate for Aftermarket Transmission Support

TSB-00-046-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for Cascadia Generations

TSB-26-052-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for DT12 PTO Upfit

FleetCom_ABS Wheel Spd

Other

Fleet Communications for ABS Wheel Speed Sensor Faults

FleetCom_Frnt Susp Spring

Other

Fleet Communications for Cascadia Front Suspension Spring Pin Bushings

FleetCom_Heater Core

Other

Fleet Communications for Heater Core Plugging

FleetCom_Mudflap Hanger

Other

Fleet Communications for Mudflap Hanger Bracket Fixturing

FleetCom_NFD Axle

Other

Fleet Communications for Detroit NFD Axle - Factory Fluid Change

FleetCom_Oil Plug Loc

Other

Fleet Communications for NFD Lower Oil Plug Location - SP Axles

FleetCom_Passive Lube

Other

Fleet Communications for Detroit Axle NFD ALM to Passive Lube Management

FleetCom_Pwr Steer Res

Other

Fleet Communications for Power Steering Resevoir - NTF Replacements

FleetCom_AMP Draw

Other

Fleet Communications for Key off amp draw

FleetCom_SS 3163-FTL

Other

Fleet Communications for Power Steering Reservoir Fill Cap Venting

FleetCom_SS 3174-FTL

Other

Fleet Communication for SS 3174-FTL

FleetCom_Bosch Steer Gear

Other

Fleet communications for Bosch Steering Gear Replacements

FleetCom_Low Coolant

Other

Fleet Communications for Low Coolant Sensor

MYCOM_10302025-1

Other

My Communications for Update to DTNA parts on UFU R61709

FAB344

Other

Features and Benefits for SafetyDirect 5.1

SS3076-FTL

Other

Service Solution for P4 Main Mirror Arm Covers Loose - Falling Off

CXA 10_25_Air Dryer Purge

Other

CX Advocate for Experiencing Excessive Purging from Air Dryer

CXA 10_25_Front Shock

Other

CX Advocate for 18k Front Suspension Shock Absorbers

CXA_10_25_Conmet Oil Pan

Other

CX Advocate for ConMet Oil Pan Insert Additional Issues

CXA_10_25_Low Coolant

Other

CX Advocate for P4, WST X-Series, DD Engines Low/Critical Low Coolant Warnings

CXA_10_25_Tech Questions

Other

CX Advocate for technical questions/issues raised

SF721-Bulletin

Service Campaign

Field Service Campaign for SF721 18k Front Suspension Shock Absorbers

SF721-DLR LTR

Service Campaign

Field Service Campaign for SF721 18k Front Suspension Shock Absorbers

SF721-OWN LTR

Service Campaign

Field Service Campaign for SF721 18k Front Suspension Shock Absorbers

CXA_9_25_Tech Questions

Other

CX Advocate for technical questions/issues raised

MYCOM_09122025-1

Other

My Communications for Parts Alert ABS Harness

PB47-022-FTL

Service Bulletin/Repair Instructions

Revised Parts Bulletin for Cascadia 23-inch Diameter Fuel Tanks

MYCOM_09022025-1

Other

My Communications for UFI 0-Ring Announcement

CXA_8_25_Tech Questions

Other

CX Advocate for technical questions/issues raised

MYCOM_08212025-1

Other

My Communications for UPDATE TO DTNA PARTS QUALITY ALERT STOCK HOLD on UFU R61709

MYCOM_08182025-1

Other

My Communications for Parts Hold on UFU Filter

TSB35-034-FTL

Service Bulletin/Repair Instructions

Revised Technical Service Bulletin for Hub Oil Level in Final Drive (NFD) Top Performance Axles on Decked Vehicles

TSB35-34-FTL

Service Bulletin/Repair Instructions

Revised Technical Service Bulletin for Hub Oil Level in Final Drive (NFD) Top Performance Axles on Decked Vehicles

PB33-004-FTL

Service Bulletin/Repair Instructions

Parts Bulletin for Tie Rod Assembly Part Breakdown

TSB26-056-FTL

Service Bulletin/Repair Instructions

Service Solution for DT12 Oil Plug Ports

SS3176-FTL

Other

Service Solution for ICC5 Erroneous Electric Power Steering Warning Message

FAB342

Other

Features and Benefits for Detroit Connect Base Service Renewal

FAB343

Other

Features and Benefits for Detroit Connect UpfrontService Extension

CXA 4_25_Elec Pwr Steer

Other

CX Advocate for ICC5 erroneous electric power steering warning message (SS3176-FTL)

TSB54-276-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for Load Dump Switch Inspection and Installation on Dometic Refrigerators

CXA 3_25_NOx

Other

CX Advocate for NOx conversion low faults

CXA 3_25_SAS01T to SAS03T

Other

CX Advocate for SAS01T to SAS03T replacement (TSB54-373-FTL, TSB54-097-WST)

SS3174-FTL

Other

Service Solution for ICC5 B-Panel Gauges Intermittently Not Being Displayed

CXA 2_25_NOx

Other

CX Advocate for NOx conversion low faults

CXA 2_25_Turbo Oil Drain

Other

CX Advocate for turbo oil drain cracking

MYCOM_02102025-1

Other

My Communications for Variable Speed Coolant Pump for DD13 Engines - Cascadia/57X Only

TSB01-001-DDC

Service Bulletin/Repair Instructions

Technical Service Bulletin for GHG17 and Newer DD Platform Heavy Duty Oil Pan Drain Plug Inserts

TSB26-055-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for DT12 Excessive Wear

TSB26-057-FTL

Service Bulletin/Repair Instructions

DT12 OVX Transmission Refresh

TSB54-373-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for SAS01T to SAS03T Replacement Information

CXA 1_16_CARB Truck Chec

Other

CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.

CXA 1_16_DD13 Altitude

Other

CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault.

CXA 1_16_GATS2.4

Other

CX Advocate for GATS2.4 being expanding to DD15

CXA 1_16_NOx

Other

CX Advocate for NOx conversion low faults

CXA 1_16_Seat Occupancy

Other

CX Advocate for repairing seat occupancy sensor (TSB 91-016-FTL)

CXA 1_16_Turbo Oil Drain

Other

CX Advocate for turbo oil drain cracking

SS3161-FTL

Other

Service Solution for Cascadia intermittent no-start and CPC not configured message

SS3163-FTL

Other

Service Solution for Power Steering Reservoir Fill Cap Venting

TSB54-366-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for J1939 Communication Errors with Cummins Engine Automated or Allison Transmission and Bendix Side Radar

TSB35-039-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management

TSB35-032-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for Detroit Drive Axle Identification and Lubrication

FAB337

Other

FAB 337 for 4th and Fifth Gen Cascadia RP1226 - Progressive Low Voltage Disconnect (PLVD)

D24R2-Bulletin

Emissions

Emission Recall for DETROIT DD13 and DD16 ACM Software Reprogramming

D24R2-DLR LTR

Emissions

Emission Recall for DETROIT DD13 and DD16 ACM Software Reprogramming

D24R2-OWN LTR

Emissions

Emission Recall for DETROIT DD13 and DD16 ACM Software Reprogramming

CXA 11_21_CARB Truck Chec

Other

CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.

CXA 11_21_P4 J1939 Commun

Other

CX Advocate for P4 J1939 Communication Errors (TSB54-366-FTL)

TSB42-080-FTL

Service Bulletin/Repair Instructions

Revised Technical Service Bulletin for ABS Wheel Speed Fault Code Correction for MBSP Equipped Vehicles. Description of Revisions: This bulletin replaces the version dated 10/09/2024. Updated FMI number in the metadata.

SS3142-FTL

Other

Service Solution for J1939 CAN issues for vehicles equipped w/ Bendix Side Radar w/ expanded field of view

TSB91-016-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for Repairing Seat Occupancy Sensor for ISRI, SEARS and National Truck Seats

WI24-019

Warranty Program/Extension

Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates

SS3157-FTL

Other

Service Solution for Cascadia with Cummins Engines and eViscous Engine Fan with Communication Issues

CXA_10_17_CARB Truck Chec

Other

CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.

ICI24-039

Other

Important Campaign Infomration letter for DDC D23M1 - Campaign Extended

SS1023366-Detroit

Other

Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines

CXA 9_24_HDEP HPFL Seal

Other

CX Advocate for HDEP High Pressure Fuel Line Seal Failures

CXA 9_24_NFD fill plug

Other

CX Advocate for NFD fill plugs

CXA 8_24_AutoElevate Disa

Other

CX Advocate for AutoElevate Disablement Gen5 Engines

CXA 8_24_AutoElevate and

Other

CX Advocate for benefits of Autoelevate and hydrocarbon faults

CXA 8_24_BCA CLDS TSB

Other

CX Advocate for Technical Service Bulletin for New Battery Cable Access (BCA) Parts for Improved Cold Weather Functionality (TSB54-369-FTL, TSB54-095-WST)

CXA 8_24_Clean Idle Label

Other

CX Advocate for clean idle label placement

CXA 8_24_Conmet Oil Pan

Other

CX Advocate for ConMet Oil Pan Insert Additional Failures

CXA 8_24_Regen Switch

Other

CX Advocate for Missing Regen ‘switch’ menu on ICUC Screen

ICI24-031

Other

Important Campaign Information letter for DDC D23M3 - Campaign Reactivated and Extended. Field Service Campaign D23M3 - GHG17 DETROITTM DD16® Vibration Damper Replacement has been extended for an additional 6 months.

TSB54-369-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for New Battery Cable Access Parts for Improved Cold Weather Functionality

MYCOM_07192024-2

Other

My Communications for New Espar HS3 Heater and Extreme Insulation

CXA 7_24_AutoElevate Disa

Other

CX Advocate for AutoElevate Disablement Gen5 Engines

CXA 7_24_CTP2 Shrtg_SF685

Other

CX Advocate for CTP2 Shortage Recovery – Cummins Only (SF685)

CXA 7_24_Conmet Oil Pan

Other

CX Advocate for ConMet Oil Pan Insert Additional Failures

CXA 7_24_Differential Cov

Other

CX Advocate for differential maintenance

CXA 7_24_NOx

Other

CX Advocate for NOx conversion low faults. Update to CXA 6_24_NOx submission.

SS3150-FTL

Other

Service Solution for ECP Solenoid Interim Service Replacement Parts

CALFTL13-002

Service Bulletin/Repair Instructions

Customer Advisory Letter for Proactive Air Compressor, Resonator, and Suction Line Replacement

CXA 06_24_Clutch Bolts

Other

CX Advocate communication for clutch bolts

CXA 06_24_NOx

Other

CX Advocate communication for NOx conversion low faults

TSB30-013-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for Off-Road/Low Traction Throttle Parameter Update

TSB35-042-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for New Final Drive Over Heat Diagnostic

SF672 POSTCARD LARGE

Service Campaign

Field Service Campaign Owner Reminder Postcard large population

SF672 POSTCARD SMALL

Service Campaign

Field Service Campaign Owner Reminder Postcard small population

SF673 POSTCARD LARGE

Service Campaign

Field Service Campaign Owner Reminder Postcard large population

SF673 POSTCARD SMALL

Service Campaign

Field Service Campaign Owner Reminder Postcard small population

VSWP Customer Letter

Other

Customer letter regarding variable speed water pump.

D24M3-Bulletin

Service Campaign

Field Service Campaign for Drilled Exhaust Rocker Arm Installation

D24M3-DLR LTR

Service Campaign

Field Service Campaign for Drilled Exhaust Rocker Arm Installation

D24M3-OWN LTR

Service Campaign

Field Service Campaign for Drilled Exhaust Rocker Arm Installation

CALFTL54-027

Service Bulletin/Repair Instructions

Customer Advisory Letter for New Cascadia Vehicles Equipped With D- Climate P4 Ground Cable Anti-Corrosion Sealer Issue

SS3144-FTL

Service Bulletin/Repair Instructions

Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller

CALFTL20-006

Service Bulletin/Repair Instructions

Customer Advisory Letter for Proactive Oil Thermostat Replacement

SF673

Service Bulletin/Repair Instructions

Field Service Campaign for Common Telematics Platform (CTP) Installation and Initialization

FL974

Service Bulletin/Repair Instructions

Revised Emissions Recall: Cummins DEF Sensor Shortage. REVISION: Some vehicles formerly in Group F have been moved to Group G and have been assigned a new part number as specified in Table 1. An SRT for 'Calibration Code Only: Update or Confirm' has been added, as shown in Table 2, to be used when a new DEF header is not required. There have been some other minor changes to the work instructions and SRT times.

ICI24-006

Service Bulletin/Repair Instructions

Important Campaign Information letter for FL974 - Revised Bulletin & Population

ICI24-007

Service Bulletin/Repair Instructions

Important Campaign Information letter for SF669 Campaign Suspended

ICI24-002

Service Bulletin/Repair Instructions

Important Campaign Information letter for DDC D21M6 and D22M6 - Campaign Extended

SF669

Service Bulletin/Repair Instructions

Field Service Campaign for Adaptive Cruise Control

SF672_V4

Service Bulletin/Repair Instructions

Revised Field Service Campaign for Common Telematics Platform Software Update

SB60-178

Service Bulletin/Repair Instructions

Service Bulletin for Relocating the Bluetooth Microphone

SB60-180

Service Bulletin/Repair Instructions

Revised Service Bulletin for Cab Isolator for Trucks Domiciled in Mexico

SS3123-FTL2023

Service Bulletin/Repair Instructions

Service Solution for P4 New Cascadia Web Mounted 5th Wheel Ramps

CALFTL54-031

Service Bulletin/Repair Instructions

Customer Advisory Letter for Towing Related to Low Coolant Faults

FP31-031

Service Bulletin/Repair Instructions

Freightliner Parts Bulletin for Aero Bumper Air Dam Part Supersession

CALFTL31-006

Service Bulletin/Repair Instructions

Customer Advisory Letter for Center Drive Wheel Fairing Frame Rail Support Bracket Inspection

SB54-338

Service Bulletin/Repair Instructions

Revised Service Bulletin for Updating HVAC ECU Software to Fix Front HVAC Evaporator Freezing and Improve Espar Heater Cool Down. Description of Revisions: This bulletin replaces the version dated December 2021. The general information and warranty information has been updated.

SF672

Service Bulletin/Repair Instructions

Field Service Campaign for Common Telematics Platform Software Update

SF662_V2

Service Bulletin/Repair Instructions

Revised Freightliner Field Service Campaign for TomTom Android Black Box Update

ICI23-014

Service Bulletin/Repair Instructions

Important Campaign Information Letter for SF662 TomTom Work Instructions - Correction to Fuse Number.

D21M6REV4

Service Bulletin/Repair Instructions

Revised Detroit Field Service Campaign for Gen 5 Customer Demo Unit (CDU) and Pre-Series Unit Retrofits. D21M6 REVISION : Page 1 of the bulletin under "Replacement Parts" and "IMPORTANT" have been revised.

ICI23-010

Service Bulletin/Repair Instructions

Important Campaign Information letter communicating that SF660 Field Service Campaign is Replaced by FL967.

SF662

Service Bulletin/Repair Instructions

Field Service Campaign for TomTom Android Black Box Update

ICI23-003

Service Bulletin/Repair Instructions

Important Campaign Information Letter for DDC D21M6, Termination Date Extended

SF660A

Service Bulletin/Repair Instructions

Revised Field Service Campaign for Drag Link Tapered Joint

SF660

Service Bulletin/Repair Instructions

Field Service Campaign for Drag Link Tapered Joint

MYCOM_11012022

Service Bulletin/Repair Instructions

My Communications for SF625 and SF657 Pre-Flashed USB Tools. The download files for SF625 and SF657 are no longer available in our download center. In order to perform these updates you will need to order the Pre-Flashed USB tools from the PDC. This will allow for a more efficient and timely service.

SS3112-FTL2022

Service Bulletin/Repair Instructions

Service Solution for Detroit Side Object Detection Harness Rub-Chafe on Bracket

SS3113-FTL2022

Service Bulletin/Repair Instructions

Service Solution for DPF Harness Rub-Chafe onTrans-Wire Braided Air Hose.

SB54-359

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for ABS mBSP ECU Software Update Fault Code 629-11. New Cascadia vehicles manufactured from September 12, 2018 through March 22, 2021 that are equipped with WABCO Anti-Lock Braking System (ABS) controllers log excessive 629-11 fault codes, which can lead to additional downstream fault codes. The ABS controller will receive a software update to eliminate erroneous fault codes and ensure proper function.

SS3109-FTL2022

Service Bulletin/Repair Instructions

Service Solution for New Cascadia Low PowerComplaint. When additional floor heat insulation is ordered, the throttle pedal in some cases (when the throttle is fully depressed) may not reach 100% (full throttle). This can also occur if aftermarket floor mats are added to the vehicle.

ICI22-044

Service Bulletin/Repair Instructions

Important Campaign Information Letter for SF657 – Revised Bulletin. Newest Revision: A screenshot of the DiagnosticLink screen showing in Fig.15 showing 'Activation OK' must be kept on file with the repair order. This letter is to inform you that tools are now required for the SF657 repair, and the work instructions have been updated.

SF657

Service Bulletin/Repair Instructions

Revised Freightliner and Western Star CTP Software Update REVISION: New tools are required. The USB stick with SF657 software already loaded, along with the USB stick to CTP adaptor harness that is On-the-Go (OTG) protocol compliant, now have part numbers that can be purchased through the parts distribution center (PDC).

SB54-357

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Resetting the Maintenance System for DT12 Oil Changes. This service bulletin describes required maintenance system parameter changes that apply to New Cascadia vehicles with Detroit DT12 transmissions used for line haul applications.

SS3107-FTL2022

Service Bulletin/Repair Instructions

Service Solution for New Cascadia Replacing Common Telematics Platform (CTP) 1 With a CTP2

SS3108-FTL2022

Service Bulletin/Repair Instructions

Service Solution for MS01T Maintenance System FaultCode Diagnosis

SF630

Service Bulletin/Repair Instructions

Revised Field Service Campaign for Cascadia Lane Assist Software.

CALFTL26-002

Service Bulletin/Repair Instructions

Customer Advisory Letter for Eaton Endurant Transmissions Require Oil Coalescing Air Dryer Cartridges

SS3076-FTL2022

Service Bulletin/Repair Instructions

Main Mirror Arm Covers Loose - Falling Off. Lower arm covers designs have clips that hold the cover on but over time the clips can fail and allow the covers to become loose or fall off.

SB54-356

Service Bulletin/Repair Instructions

Revised Freightliner Service Bulletin for HVAC Software Updates. Description of Revisions: This bulletin replaces the version dated 06/21/2022. Formatting errors have been corrected.

SS3102-FTL2022

Service Bulletin/Repair Instructions

Service Solution for 100/120/130 Gallons Fuel Tanks interference/rubbing with fairing bracket.

SF611REV2

Service Bulletin/Repair Instructions

Revised Field Service Campaign for Cascadia CTP Reset. Certain vehicles equipped with DTNAs proprietary Common Telematics Platform (CTP) are not communicating; therefore they are unable to benefit from over-the-air software updates. The CTP will be reset and some will also be initialized.

D21M6REV3

Service Bulletin/Repair Instructions

Revised Detroit Field Service Campaign for Gen 5 Customer Demo Unit (CDU) and Pre-Series Unit Retrofits.

ICI22-020

Service Bulletin/Repair Instructions

Important Campaign Information for DDC D21M6 - Third Revised Bulletin. This letter is to inform you that a revised bulletin for DETROITTM Field Service Campaign D21M6 - Gen 5 Customer Demo Unit (CDU) and Pre-Series Unit Retrofits is available on DTNAConnect.

SB54-348

Service Bulletin/Repair Instructions

Updated Freightliner Service Bulletin for Meritor Rear Axle Temperature Parameters. This bulletin replaces the version dated 1/22/2022. The build date in General Information has been added.

SS1034428-FTL22

Service Bulletin/Repair Instructions

Service Solution for Cummins Engine andWABCO OnGuard (Obtaining Cruise When AdaptiveCruise Is Interrupted). Interruption of the forward radar system results in loss of both standard and adaptive cruise functions. The OnGuard system will recover (self-heal), once the issue goes away, but the drivercannot get Adaptive Cruise Control functional until the ignition switch is cycled. Applies to all New Cascadia vehicles built with Cummins engines and WABCO OnGuard.

FP60-055

Service Bulletin/Repair Instructions

Freightliner Parts Technical Bulletin for TufGlass Windshield Replacement. Effective April 20, 2022, owners of New Cascadia vehicles have the option of replacing factory-installed standard windshields with L20 TufGlass windshields.

ICI22-017

Service Bulletin/Repair Instructions

Important Campaign Information Letter for DDC D21M1 Termination Date Extended. This letter is to inform you that a revised bulletin for Detroit Diesel Field Service Campaign D21M1, DT12 Transmission Drive Shaft Cover Plug Reseal has been EXTENDED for an additional three months. Please use the extended termination date for all work under D21M1 from this point forward. REVISION: D21M1 termination date extended to July 1, 2022.

SB26-054

Service Bulletin/Repair Instructions

Revised Freightliner Service Bulletin for DT12 Transmission Control Harness Chafing the Transmission Control Module

SB83-137

Service Bulletin/Repair Instructions

Revised Freightliner Service Bulletin for ParkSmart Eberspaecher Auxiliary Heater Service. This bulletin replaces the version dated May 2015. The note in General Information has been revised to include New Cascadia. Espar information has been changed to reflect a company name change to Eberspaecher.

ICI22-015

Service Bulletin/Repair Instructions

Important Campaign Information letter for SF622 – Addition of 8x4 Vehicles to Populationx

SF622REV

Service Bulletin/Repair Instructions

Revised Field Service Campaign for Cascadia, 49X ABS MBSP+ Controller Software Update

SB54-350

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Battery Load Disconnect Switch Installation. Cab load disconnect switches (CLDS), also known as positive load disconnect, installed on selected vehicles can reduce battery drain when the vehicle is not operational.

D21M6REV2

Service Bulletin/Repair Instructions

Revised Detroit Field Service Campaign for Gen 5 Customer Demo Unit (CDU) and Pre-Series Unit Retrofits.

FP54-089

Service Bulletin/Repair Instructions

Freightliner Parts Technical Bulletin for Discontinued Radio Replacement.

SB49-042

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for DEF Connector Reinforcement Caps.

SB32-056

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Front Spring Eye Bushing Replacement

D21M6REV1

Service Bulletin/Repair Instructions

Gen 5 Customer Demo Unit (CDU) and Pre-Series Unit Retrofits. Specific 2021 Freightliner New Cascadia model vehicles, powered with DETROIT Gen 5 DD15 Engines manufactured February 3, 2020, through December 14, 2020

SF643

Service Bulletin/Repair Instructions

Cascadia with Allison Transmission - Inconsistent Shift. On certain Freightliner Cascadia vehicles with Allison automatic transmissions, a software error may prevent the transmission from shifting out of neutral.

SB60-172

Service Bulletin/Repair Instructions

Revised Freightliner Service Bulletin for Retrofit of One-Piece to Two-Piece Auxiliary Dash Panel. Minor note: added an update of document previously submitted. The related VMRS codes are added

SS3076-FTL2021

Service Bulletin/Repair Instructions

Updated Service Solution for Main Mirror Arm Covers Loose -Falling Off. Lower arm covers designs have clips that hold the cover on but over time the clips can fail and allow the covers to become loose or fall off.

SS3083-FTL2021

Service Bulletin/Repair Instructions

Service Solution for Aero Height Control Interfering with RDF Alignment. The Aerodynamic Height Control feature on the New Cascadia is a feature that raises and lowers the air suspension with relation to vehicle speed in order to reduce drag and achieve better fuel efficiency. The Hadley Smart Valve (HSV) is the module that makes this possible by applying and exhausting air from the rear axle suspension as necessary.

ICI21-034

Service Bulletin/Repair Instructions

Important Campaign Information letter for SF630 – Revised and Reactivated Bulletin. This letter is to inform you that campaign SF630, Cascadia Lane Assist Software, will be reactivated with revised work instructions Monday, 11/15/21. Please print and use the revised bulletins for all work under SF630 from this point forward.

ICI21-031

Service Bulletin/Repair Instructions

SF630 Campaign Suspended. This letter is to inform you that campaign SF630, Cascadia Lane Assist Software, will be suspended today Friday, 10/22/21. On 10/22/21 you will see SF630 marked as 'Suspended' in OWL. It has been determined that a change in the procedure is necessary. A second Important Campaign Information letter will be posted when the changes have been made and the campaign is reactivated.

SF615

Service Bulletin/Repair Instructions

Stoneridge ICUC Replacement. Certain vehicles equipped with a Stoneridge instrument control unit common (ICUC) were programmed using a new method to improve efficiency and align with programming for European ICUCs. All ICUCs built using the new method are permanently in the "read only" mode, and any attempt to flash will corrupt the ICUC memory.

SF613

Service Bulletin/Repair Instructions

ConMet Front Hub to Rotor Fasteners. On certain vehicles, the front rotor nuts may not be torqued to manufacturer specification. Loose components could cause damage to the ABS tone rings, the ABS sensors, and the anchor plate mounting fasteners.

SS3091-FTL 2021

Service Bulletin/Repair Instructions

Service Solution for Damaged SGA Wires at GrabHandle Located on Right A Pillar. The field had reported failed VRDU modules related to wires damage for the SGA.

CTP1Updates

Service Bulletin/Repair Instructions

DetroitConnect follow-up customer communication for certain vehicles unable to complete over the air updates including parameters and DDEC over the air.

MYCOM_091321-3

Service Bulletin/Repair Instructions

My Communication for Detroit Connect Over the Air Issue Update. This is an update for the previously communicated Over the Air functionality issue on CTP1s. We are currently testing a solution for the issue that is affecting these CTP1 telematics devices. While testing is not complete initial results are promising. The solution will require a soft ware update which is currently planned for October/November.

SF623

Service Bulletin/Repair Instructions

Field Service Campaign for Cascadia ICUC Traffic Sign Display. Certain vehicles equipped with a Detroit Assurance base package, and a DT12 transmission with intelligent powertrain management (IPM+), were not built with the Traffic Sign Display (TSD) option.

CALFTL54-018

Service Bulletin/Repair Instructions

Customer Advisory Letter for New Cascadia Aluminum Battery Cable Replacement. This customer advisory letter is intended to provide parts for inspection by DTNA Engineering to finalize a technical solution for an upcoming recall: FL893/NHTSA 21V-481.

ICI21-027

Service Bulletin/Repair Instructions

Important Campaign Information Letter for SF622 – Campaign Revision/Reactivation. This letter is to inform you that the work instructions for Field Service Campaign SF622, Cascadia/49X ABS MBSP+ Controller Software Update have been revised.

SF622

Service Bulletin/Repair Instructions

Revised Field Service Campaign for Cascadia/49X ABS MBSP+ Controller Software Update. REVISION: The work instructions have been revised. Certain vehicles have a WABCO Anti-Lock Braking System (ABS) controller that logs excessive 629-11 fault codes which subsequently lead to additional downstream fault codes.

20TS-11

Service Bulletin/Repair Instructions

Technical Service Letter for Detroit CPC501T GHG21 Only; Updating Bootloader Using DL version 8.14 and higher. On Detroit powertrain equipped Cascadia’s, built in 2020, it may be necessary to complete an additional step in the programming process when updating the CPC501T software.

D21M6

Service Bulletin/Repair Instructions

Detroit Field Service Campaign for Gen 5 Customer Demo Unit (CDU) and Pre-Series Unit Retrofits. Certain Customer Demo Unit (CDU) and Pre-Series vehicles with Gen 5 engines require engine retrofits to bring the engines up to full production specifications.

SS3085FTL-2021

Service Bulletin/Repair Instructions

Service Solution for Cummins PTO functionality error software level 81Z-006. Cascadia/Western Star 49X with Cummins engines combined with software level 81Z-006. A programming bug in the central gateway (CGW) for software level 81Z-006 will not allow completion of the preset #2 PTO engine speed. During PTO speed request for anything greater than the #1 set speed , if the Cummins ECU software determines that the increase in speed isn't ramping fast enough, it will refer to an engine torque control setting instead of the engine speed control setting.

SB54-345

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Detroit New Final Drive (NFD) Rear Axle Temperature Parameters. Some New Cascadia trucks equipped with Detroit Diesel New Final Drive (NFD) axles have a high temperature warning parameter. The warning is set too low for some applications, and under certain conditions that are not harmful to the axle, the high temperature warning will appear on the dash and indicate an error requiring service.

FAB289

Service Bulletin/Repair Instructions

Freightliner Action Bulletin for Cascadia Sleeper Cabinet Options. Improved cabinet options in sleeper models to increase storage and customize to the driver’s liking.

SS1034216

Service Bulletin/Repair Instructions

Service Solution for Detroit Assurance Radar Front End Shipping Label. It has been reported that in some cases shipping labels may have been affixed to the inside center of the front cover on aftermarket parts. The shipping label has since been moved to the outer edge of the front cover, which should not affect the RDF's ability to properly sense obstacles located in front of the vehicle.

CALFTL47-001B

Service Bulletin/Repair Instructions

Revised Customer Advisory Letter for Correction of Low Pressure Fuel Line Installation to Ensure Proper Clearance. Revision Information: Figures have been updated to better show the issue being addressed.

SB54-347

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Rain Sensor not Detecting Material on the Windshield. The rain light sensor (RLS) requires proper mounting and clear windshield visibility for auto wipe to function properly. It is always recommended when checking for proper operation of the RLS, that the sensor be properly fastened to its mounting bracket and that the gel is free of fingerprints and foreign material. Also ensure that no air bubble larger than 1 mm is present in the gel.

SS2083FTL2021

Service Bulletin/Repair Instructions

Service Solution for Aero Height Control Interfering with RDF Alignment and 42/523004/13 and 232/524042/9 Active for vehicles equipped with Hadley Smart Valve. The Aerodynamic Height Control feature on the New Cascadia is a feature that raises and lowers the air suspension with relation to vehicle speed in order to reduce drag and achieve better fuel efficiency. The Hadley Smart Valve (HSV) is the module that makes this possible by applying and exhausting air from the rear axle suspension as necessary.

SS3082FTL2021

Service Bulletin/Repair Instructions

Service Solution for New Cascadia Fuel Sending Unit Connector Loose.

TS382-2021

Service Bulletin/Repair Instructions

Training Solutions for Detroit Assurance Frontend Radar (RDF) General Troubleshooting Approach. This solution acts as an overall guide for troubleshooting Frontend Radar (RDF), Adaptive Cruise Control (ACC), and Active Brake Assist (ABA) issues. The troubleshooting approach below is an all-encompassing approach to address most of the relevant complaints related to the RDF. Some of it may be redundant for the specific issue you run into but most likely will address the issue you are facing.

CALFTL91-002

Service Bulletin/Repair Instructions

Customer Advisory Letter for Replacement of Sears Driver Seat Metal Mounting Clip to Eliminate Seat Sensor Chaffing Issue. The seat sensor harness on New Cascadia vehicles ordered with a Sears driver seat (sales code 756-1H2) may experience chaffing due to the incorrect mounting of a metal clip edge;

SS3081FTL2021

Service Bulletin/Repair Instructions

Service Solution for VRDU Fault Code 232/524000/19and 232/524049/19 – ECU CPC Data Error. This VRDU code typically sets after the VRDU gets reprogrammed and parameters to clear out. To prevent this from happening in the future, follow the programming guide laid out in SB 54-308.Parameter changes during flashing can occur if the programming steps are not followed.

SS3078-FTL2021

Service Bulletin/Repair Instructions

Freightliner Service Solution for New Cascadia No Start and or Stalk Switch Shift Lever Right Active Fault(s). The solution applies to New Cascadia vehicles built from 1/1/2020 with Detroit Engines and DT12 transmissions.

CALFTL31-004

Service Bulletin/Repair Instructions

Customer Advisory Letter for 4-Hook Chain Hanger Replacement.

TechTalk566827

Service Bulletin/Repair Instructions

Tech Talk Discussion Powertrain Overspeed Detected

CALFTL42-004

Service Bulletin/Repair Instructions

Customer Advisory Letter for Drive Axle Drum Brake S-Cam U-Bolt Replacement.

TechTalk566776

Service Bulletin/Repair Instructions

Tech Talk Discussion 2021 P4 jyst brakes drag alarm on all the time

FAB286

Service Bulletin/Repair Instructions

Freightliner Action Bulletin FAB286 Cascadia Rear Suspension Ride Height

SB60-175

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Auxiliary Mirror Vibration. Cascadia trucks built from January 1, 2017 through June 16, 2020 may be equipped with auxiliary mirrors that vibrate or wobble. A service kit (part number 22-77791-500) is available to resolve the issue.

SB54-322

Service Bulletin/Repair Instructions

Updated Freightliner Service Bulletin for Adjusting Automatic Temperature Control Range with Optimized Idle. This bulletin replaces the version dated 12/06/2019. Tables 3 and 4 have been updated. Steps to change and match HVAC desired settings have been updated.

SF618

Service Bulletin/Repair Instructions

Field Service Campaign for Cascadia Cummins Acumen Edge Wiring. Certain vehicles equipped with a Cummins Acumen Edge module are not communicating and, therefore, are unable to benefit from over-the-air software updates and may not be able to connect to the Cummins digital apps.

CALFTL40-001

Service Bulletin/Repair Instructions

Customer Advisory Letter for Tire Valve Stem Inspection.

CALFTL54-016

Service Bulletin/Repair Instructions

Customer Advisory Letter for Battery Cable Access (BCA) 29A Cable Inspection.

SS3075-FTL2021

Service Bulletin/Repair Instructions

Service Solution for FTL DT12 Trans Control Harness Chaffing - PT Can faults. Transmission will not shift into Gear while driving or will not start and trigger multiple PT CAN Fault Codes.

D21M1

Service Bulletin/Repair Instructions

Detroit Field Service Campaign for DT12 Transmission Drive Shaft Cover Plug Reseal. Daimler Trucks North America LLC, on behalf of its DETROIT Powertrain Division, is initiating Field Service Campaign D21M1 on certain DT12 transmissions in order to reseal the bypass plugs of the drive shaft cover located in front housing.

WI21-009

Service Bulletin/Repair Instructions

Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown. The updated after treatment system (ATS) diesel exhaust fluid (DEF) pump times will be applied to repair orders opened on or after April 12, 2021.

TechTalk566191K

Service Bulletin/Repair Instructions

Tech Talk discussion on SPN 61683 FMI 16 DATA VALID BUT ABOVE NORMAL OPERATING RANGE - MODERATELY SEVERE LEVEL.

WI21-008

Service Bulletin/Repair Instructions

Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times (SRTs) shown. The updated times will be applied to repair orders opened on or after April 5, 2021.

TechTalk20069

Service Bulletin/Repair Instructions

Tech Talk discussion on 2021 NEW CASCADIA SUSPENSION DUMP IS NOT RAISING THE SUSPENSION.

SF620

Service Bulletin/Repair Instructions

Field Service Campaign for Freightliner Cascadia RHD Key Fob - Export Only. The Regulatory Compliance Marking (RCM) was not implemented on the Key Fobs shipped to the Australian/New Zealand Market, as required by AS/NZS 4417.1 and 4417.2. The marking indicates component compliance with the requirements imposed or covered by these regulations. Key Fob replacements for the right hand drive (RHD) Cascadia, properly marked for sale and distribution in Australia and New Zealand will be provided and programmed.

SF619

Service Bulletin/Repair Instructions

Field Service Campaign for Cascadia Cummins Natural Gas Engine Exhaust Shield. On certain vehicles, there may be early heat degradation at the front right cab mount due to excessive heat exposure. An exhaust shield will be installed on all vehicles involved.

CALFTL42-003

Service Bulletin/Repair Instructions

Customer Advisory Letter for Inspection and Correction of the Clearance between the Drive Axle Disc Brake Chamber and the Airliner Leaf Spring.

SB83-155

Service Bulletin/Repair Instructions

Updated Freightliner Service Bulletin for Espar Service Information. This bulletin replaces the version dated January 1, 2015. New Cascadia has been added to the model list.

TechTalk7541

Service Bulletin/Repair Instructions

Tech Talk continuing discussion on 523013/31 seat occupation not ok.

WP21-007

Service Bulletin/Repair Instructions

Warranty Policy Letter for battery tags. DTNA determined that since adopting the AutoMeter BCT-460DTNA Powernet Assessment Tool (AutoMeter) as the required powernet system tester, not all battery tags have to be retained support Warranty-related claims.

SS3070FTL2021

Service Bulletin/Repair Instructions

Service Solution for P4 New Cascadia Side Guard Radar Harness Moisture Intrusion. The 6-pin connector located at the side radar can show signs of water intrusion if wires are strained at the connector. Wires without strain relief can allow water to intrude past the seals, resulting in corrosion on the terminals and pins within the connector. Active fault codes for lost communication with RDU and SRRM, plus other codes for CPC, CGW and ABS.

SS3071FTL2021

Service Bulletin/Repair Instructions

Service Solution for New Cascadia Maintenance Indicator Issues. Some customers have reported incorrect or undesired pop up messages occurring in the ICC5 display and have requested field correction.

CALFTL54-010REV3

Service Bulletin/Repair Instructions

Revised Customer Advisory Letter for ABS Warning Light Illumination with ABS code SA 11, SPN 629, FMI 11. REVISED: This CAL revises the CAL issued August 10th, 2020. Western Star 49X vehicles have been added to the CAL scope and instructions for downloading and installing software to address the ABS warning light illumination with ABS code SA 11, SPN 629, FMI 11 have replaced the corrective action of the previous CAL.

D21M3

Service Bulletin/Repair Instructions

Detroit Field Service Campaign for DT12 Gear Grind During Downshift Software Update.

SB49-038

Service Bulletin/Repair Instructions

Revised Freightliner Service Bulletin for netized Fill Neck for Six-Gallon DEF Tanks. A design change removed the magnets from the fill necks for some 6-gallon diesel exhaust fluid (DEF) tanks. If the vehicle is equipped with a non-magnetic fill neck 04-32529-000, it can be updated to a magnetic neck 04-32529-001. This bulletin replaces the version dated 04/18/2017. Updated availability of magnetic fill neck option for other diesel exhaust fluid (DEF) tank part numbers.

SB54-341

Service Bulletin/Repair Instructions

Updated Freightliner Service Bulletin for Tire Pressure Monitoring System (TPMS) Water Intrusion. This bulletin replaces the bulletin dated 02/08/2021. The location for the date stamp has changed. A note has been added to Fig. 2.

TechTalk12296K

Service Bulletin/Repair Instructions

Tech Talk discussion on Door Control Module Driver (DCMD) failing.

DT12 Trans Chafe

Service Bulletin/Repair Instructions

DTNA received a field notification on multiple units regarding diagnostic fault codes that were found to be causing issues to the After Treatment Control Module (ACM). These fault codes indicated that the ACM communication message was not received by the Motor Control Module (MCM) which in certain cases, led to a 25% engine de-rate situation. Further diagnosis revealed that the DT12 wiring harness was chafing and contacting the transmission TCU case. To reduce potential chafing areas, the proposed short-term containment was to route the wiring harness using additional tie straps. This communication applies to Freightliner and Western Star vehicles built with DT12 transmissions.

CALFTL49-002

Service Bulletin/Repair Instructions

Customer Advisory Letter for Adding Exhaust Shim to ATS Exhaust Outlet and Replacing Exhaust Elbow and Clamp. An undersized ATS outlet pipe was installed on these vehicles, causing the exhaust clamp used to fasten the exhaust elbow to not clamp securely.

CALFTL47-001

Service Bulletin/Repair Instructions

Customer Advisory Letter for Correction of Low Pressure Fuel Lines Installation to Ensure Proper Clearance.

CALFTL54-015

Service Bulletin/Repair Instructions

Customer Advisory Letter for Disabling the Park Brake Drag ICU Warning Message.

SB54-305

Service Bulletin/Repair Instructions

Revised Freightliner Service Bulletin for New Cascadia Key Fob ID Retention. This bulletin replaces the version dated 8/15/2018. The guidance for locating the serial number for key fobs has changed. It is no longer necessary to document the serial number in PartsPro.

SB54-308

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Programming Chassis Electronic Control Units (ECUs) With DiagnosticLink.

CALFTL32-009

Service Bulletin/Repair Instructions

Customer Advisory Letter for New Cascadia Front Steer Arm – Drag Link Ball Joint Connection Inspection.

CALFTL32-010

Service Bulletin/Repair Instructions

Customer Advisory Letter for New Cascadia Front Steer Arm – Drag Link Ball Joint Connection Inspection.

20TS-07REV

Service Bulletin/Repair Instructions

Revised Technical Service Letter for Cold Weather Faults on GHG17/21 DD13 with MCM Software Version 14. Due to colder weather, there may be an increase in the frequency of faults, noted below, on GHG17/21 DD13 trucks built after June 5th 2019. This is due to a calibration issue in the current MCM software (14.1.1.5 or 14.2.1.3). New software is scheduled for release in the first quarter of 2021 that will address these faults.

21OEM-06

Service Bulletin/Repair Instructions

Starting on November 23, 2020, DiagnosticLink 8.13 (Build 4527) was made available. Current subscribers of DiagnosticLink 8.11 or 8.12 may upgrade to DiagnosticLink 8.13 at no cost. All DTNA Service shops & OEM locations are required to maintain the latest version of software on each of their stations.

21TS-04

Service Bulletin/Repair Instructions

Technical Service Letter for Gen 5 DD15 Instrument Panel Oil Pressure Gauge Operation. Gen 5 DD15 equipped units have been brought in for service with a complaint of the instrument panel oil pressure gauge not moving during unit operation and/or stuck at 50PSI. The instrument panel oil pressure gauge does not operate the same as with previous engine models. Please be advised, this is normal operation and no further diagnostics are required. Do not down a unit for this complaint.

TechTalk8152

Service Bulletin/Repair Instructions

Tech Talk discussion on New Cascadia Air Dryer Small Purges.

P4HALOGENUPDATE

Service Bulletin/Repair Instructions

Customer Maintenance Enhancements for the P4 Halogen Lamp replacement procedure.

ICI21-003

Service Bulletin/Repair Instructions

Superseding Letter to an Important Campaign Information Letter to announce a reimbursement available to dealers for travel to a customer's location to perform a recall or field service campaign. Potential travel reimbursement applies to DTNA truck dealers and Detroit Diesel distributors. Thomas Built Buses will be addressed separately. This letter supersedes ICI20-022R.

WI21-006

Service Bulletin/Repair Instructions

Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines.

TechTalk4855

Service Bulletin/Repair Instructions

Tech Talk continued discussion for P4 Next Gen Cascadia dome lights stay on while driving.

TechTalk8142

Service Bulletin/Repair Instructions

Tech Talk discussion on Radio issue while in AM mode and inverter on.

SS1034884

Service Bulletin/Repair Instructions

Service Solution for P4 New Cascadia Unintended Dome Lamp Activation Due To Poor Connections at the sSAM.

TechTalk8126

Service Bulletin/Repair Instructions

Tech Talk discussion on D20M8 having updates greater than Recall requires in server.

TechTalk8124

Service Bulletin/Repair Instructions

Tech Talk discussion on Fault Code Information Missing.

WI20-014R

Service Bulletin/Repair Instructions

Revised Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance. In the spirit of continuous improvement, DTNA reviewed sublet-related policies and procedures. The goal was to improve language clarity and optimize processes. Revisions are in blue font.

SF608

Service Bulletin/Repair Instructions

Field Service Campaign for Cascadia Road Train Brake System - Export Only.

SS1034867

Service Bulletin/Repair Instructions

Service Solution for New Cascadia Seat Belt Warning Harness Routing

TechTalk8103

Service Bulletin/Repair Instructions

Tech Talk discussion on Cascadia P4 No start.

Techtalk7980

Service Bulletin/Repair Instructions

Tech Talk continued discussion on P4 dome lights comin on while driving.

TechTalk7065

Service Bulletin/Repair Instructions

Tech Talk continued discussion on New Cascadia wipers unresponsive. Wipers don't work in the first two positions. Determined to be the LDW camera wire was caught underneath the top right portion of the windshield mounting plate, thus causing the rain/light sensor to not seat all the way against the windshield.

TechTalk7644

Service Bulletin/Repair Instructions

Tech Talk discussion on Possible new regen strategy on GHG 17.

Techtalk7065

Service Bulletin/Repair Instructions

Tech Talk continued discussion on New Cascadia wipers unresponsive. Wipers don't work in the first two positions. Determined to be the LDW camera wire was caught underneath the top right portion of the windshield mounting plate, thus causing the rain/light sensor to not seat all the way against the windshield.

WI21-004

Service Bulletin/Repair Instructions

Warranty Information Letter for Detroit Resources: Exploded View DD Platform and DT12 Posters. Detroit's TechComm team created visual aids for the network and released exploded view posters for DD platform engines. In early 2021, Detroit added multiple DT12 posters.

CALFTL01-003

Service Bulletin/Repair Instructions

Customer Advisory Letter for Gen 5 DD15 Proactive Turbocharger Replacement.

21TS-01

Service Bulletin/Repair Instructions

Technical Service Letter for Detroit Bearing Failures - Standard Diagnostic Times. DTNA is increasing repair strategies for determining the root cause of Detroit DD heavy duty lower end bearing failures. To support this strategy change, Detroit now has two (2) Standard Diagnostic Times (SDTs), easy and difficult, which can be applied to repair orders.

SB54-342

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Rain/Light Sensor Removal. On New Cascadia vehicles, a delay in the timing of communication (hand shake) between the rain/light sensor (RLS) and sSAM generates fault code "33/521940/12 - rain/light sensor - general DTC timeout", which causes the sensor to stop working.

TechTalk7463

Service Bulletin/Repair Instructions

Tech Talk continuing discussion on ABS trailer code 520216 31 P4 New Cascadia.

WI21-003

Service Bulletin/Repair Instructions

Warranty Information Letter for Detroit Bearing Failures - Standard Diagnostic Times. DTNA is increasing repair strategies for determining the root cause of Detroit DD heavy duty lower end bearing failures. To support this strategy change, Detroit now has two (2) Standard Diagnostic Times (SDTs), easy and difficult, which can be applied to repair orders.

SB54-337

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Coolant Level Sensor Wiring Repair. On New Cascadia vehicles, depending on the tension applied to the harness located at the coolant level sensor and its mounting locations, wiring damage can occur, resulting in one or more of the below listed fault codes.

SB54-339

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Updating the Programming of the Integrative Predictive Powertrain Control (IPPC) Module. The integrative predictive powertrain control (IPPC) module programming should be updated to the newest software. If the ignition short-cycles on these vehicles with the previous software, there is a risk that the IPPC module will not have time to write EEPROM data in the controller. If this occurs, the IPPC will set check sum fault 520208/19 and will require programming to clear it.

SB60-174

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Replacement Cab Doors with Pre-Drilled Holes. Replacement doors for New Cascadia vehicles are now pre-drilled with two holes for the installation of turning vanes. If turning vanes are not installed, the pre-drilled holes need to be plugged with ratchet fasteners.

WI21-001

Service Bulletin/Repair Instructions

Warranty Information Letter for Detroit New Service Replacement Engine SRT Update. While validating Standard Repair Times (SRTs) for Detroit's new Gen 5 engine series, DTNA discovered an error in a pre-Gen 5 SRT for the New Service Replacement Engine Program. As a result, DTNA re-studied the SRT and concluded that time for removing/re-installing multiple components (e.g., exhaust manifold/turbo, engine sensor harness, rocker arm assemblies, etc.) should not be included.

TechTalk7669

Service Bulletin/Repair Instructions

Tech Talk continued discussion on Parksmart Fan Control

TechTalk8029

Service Bulletin/Repair Instructions

Tech Talk discussion on Cab vent temperatures.

TechTalk6985

Service Bulletin/Repair Instructions

Tech Talk discussion on oil filter.

TechTalk6963

Service Bulletin/Repair Instructions

Tech Talk discussion on DO NEW CASCADIA TURN SIGNAL SWITCHES RETURN TO ORIGINAL POSITION.

TechTalk7596

Service Bulletin/Repair Instructions

Tech Talk discussion on P4 radar issue.

TechTalk8009

Service Bulletin/Repair Instructions

Tech Talk discussion on radio wont turn on with the key but only push button.

SS1034762update

Service Bulletin/Repair Instructions

This Service Solution has been superseded by Service Bulletin SB54-338. Service Solution for P4 Cascadia Front HVAC Evaporator Freezing. Front evaporator freezes creating ice buildup, reducing airflow through the vents.

Techtalk8009

Service Bulletin/Repair Instructions

Tech Talk discussion on radio wont turn on with the key but only push button.

SB35-036

Service Bulletin/Repair Instructions

Revised Freightliner Service Bulletin for Axle Flange Gasket Replaced with O-Ring. Revision removed steps instructing removal and installation of wheels. Daimler Trucks North America has released a new axle shaft to hub rubber O-ring (part number 11-30728-000) as a replacement for the paper gasket (part number 11-14418-000). The new O-ring will provide better sealing and is reusable. It is quicker and easier to use compared to the paper gasket, because using a paper gasket requires cleaning the hub when the axle shaft is removed.

Techtalk6578

Service Bulletin/Repair Instructions

Tech Talk discussion on New Cascadia "low air pressure" warning light.

SB42-079

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Access to Front Brake Zerk Fittings. Certain vehicles with Detroit front axles and Meritor EX-L front air disc brakes do not have access to the front brake zerk fittings for lubrication.

Techtalk7776

Service Bulletin/Repair Instructions

Tech Talk continued discussion on 2021 Cascadia opt idle issues.

Techtalk7977

Service Bulletin/Repair Instructions

Tech Talk discussion on rookie mirror falling out.

SS1034868

Service Bulletin/Repair Instructions

Service Solution for flickering overhead reading light during slight movement of the steering wheel for New Cascadia with DR 40SI alternators, possibly other alternators as well. The flickering overhead light is considered a nuisance, and can be simply eliminated by either adding an accessory to one of the power receptacles, or running an additional ground in one of the sleeper bunk lamps to suppress the ripples on the circuit.

SB54-340

Service Bulletin/Repair Instructions

Service Bulletin for Pana-Pacific DEA505 Radio Reprogramming. On right-hand drive New Cascadia vehicles built before September 28, 2020, incompatible radio software can cause the Pana-Pacific DEA505 radios (A22-76228-000) to send the Bluetooth audio to the left-hand door speaker.

Techtalk7953

Service Bulletin/Repair Instructions

Tech Talk discussion on 2021 p4 jyst brakes drag alarm on all the time.

WP20-018R

Service Bulletin/Repair Instructions

Revised Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing. Revisions are in blue. With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been added to OWL. Remanufactured Alliance/Mascot parts include transmission, differential, steering gear, and steering pump used in an on-highway vehicle applications. The Alliance/Mascot aftermarket warranty coverage period has not changed: depending on the part, coverage is for one (1) or two (2) years and current parts, labor, and reimbursement policies apply.

WP20-018

Service Bulletin/Repair Instructions

Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing. With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been added to OWL. Remanufactured Alliance/Mascot parts include transmission, differential, steering gear, and steering pump used in an on-highway vehicle applications. The Alliance/Mascot aftermarket warranty coverage period has not changed: depending on the part, coverage is for one (1) or two (2) years and current parts, labor, and reimbursement policies apply.

20TS-09

Service Bulletin/Repair Instructions

Technical Service Letter for SPN 3711 FMI 31 on GHG17 DD15 Trucks.

18SP744

Service Bulletin/Repair Instructions

Special Publication letter for Two-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit.

DCFuelAnalytics

Service Bulletin/Repair Instructions

Detroit Connect Customer Communication for vehicle trips not populating in the Vehicle History Trips page. This may affect Fleet Fuel Analysis and Fuel Economy Calculations.

TechTalk7857

Service Bulletin/Repair Instructions

Tech Talk discussion on SS1034348 P4 unintended flasher.

CALFTL54-014

Service Bulletin/Repair Instructions

Customer Advisory Letter for Dome Lamps Do Not Illuminate When the Right-Hand Door is Opened.

SB54-278

Service Bulletin/Repair Instructions

Updated Freightliner Service Bulletin for Powernet Troubleshooting Guide - Batteries, Path, Alternator, and Starter. This bulletin replaces the version dated 5/31/2017. Information is added about the BCT-460DTNA PowerNet Assessment Tool. When troubleshooting Powernet issues, use the BCT-460DTNA PowerNet Assessment Tool. As of May 29, 2018, the AutoMeter® is the only Daimler-approved tool for troubleshooting vehicle Powernet issues.

17TS-05REV2

Service Bulletin/Repair Instructions

Revised Technical Service Letter for Detroit DT12 TCM GHG17 Only; Bootloader Update. On Detroit DT12 equipped vehicles, it may be necessary to complete an additional step in the programming process when updating the TCM software.

20TS-07

Service Bulletin/Repair Instructions

Technical Service Letter for Cold Weather Faults on GHG17/21 DD13 with MCM Software Version 14. Due to colder weather, there may be an increase in the frequency of faults, noted below, on GHG17/21 DD13 trucks built after June 5th 2019. This is due to a calibration issue in the current MCM software (14.1.1.5 or 14.2.1.3). New software is scheduled for release in the first quarter of 2021 that will address these faults.

TechTalk7785

Service Bulletin/Repair Instructions

Tech Talk discussion on DL8 CGW connection issues for D20M8.

TechTalk7811

Service Bulletin/Repair Instructions

Tech Talk discussion on Suspension Pressure Gauge.

SB09-038

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Air Cleaner Support Bracket Bolt Replacement. On New Cascadia vehicles, the air filter housing rear mounting bracket bolts may be found to be loose or missing. If allowed to continue, this can lead to complete bolt failure which will allow the filter housing to rest on and possibly wear through the valve cover.

CALFTL32-008

Service Bulletin/Repair Instructions

Customer Advisory Letter for Drive Axle Leaf Spring Pin Hex Nut Torque Inspection. Select New Cascadia vehicles may have been delivered to customers with insufficient torque applied to the hex nuts at the front of the spring hanger.

ICI20-033

Service Bulletin/Repair Instructions

Important Campaign Information Letter for SF576, SF610, & SF611 - Revised Bulletins. This letter is to inform you that revised bulletins for FOTA Field Service Campaigns SF576, SF610, and SF611 are available on DTNAConnect. Please print and use the revised bulletin for all work under SF576, SF610, & SF611 from this point forward. REVISION: The work instructions on all campaigns have been updated, a new campaign group with new parts were added to SF576 and an SRT was added to SF611.

SF611REV

Service Bulletin/Repair Instructions

Revised Field Service Campaign for Cascadia CTP Reset. Certain vehicles equipped with DTNA's proprietary Common Telematics Platform (CTP) are not communicating and, therefore, are unable to benefit from over-the-air software updates. The CTP will be reset and some will also be initialized.

20TS-06

Service Bulletin/Repair Instructions

DDC Technical Service Letter for GHG17 DD Platform Heavy Duty Oil Pan Drain Plug Inserts. Some GHG17 DD Platform Heavy Duty oil pans may experience an issue with the oil pan drain plug insert spinning during removal or installation while completing an oil change. Leaking may also be observed at the drain plug and/or other plugs in the oil pan.

TechTalk7771

Service Bulletin/Repair Instructions

Tech talk discussion on DD harness Chaffe.

TechTalk7776

Service Bulletin/Repair Instructions

Tech talk discussion on 2021 Cascadia opt idle issues.

TechTalk7708

Service Bulletin/Repair Instructions

Tech Talk discussion on Detroit Assurance shutting down.

SB54-336

Service Bulletin/Repair Instructions

Updated Freightliner Service Bulletin for Rewiring the MPC2 Camera Fuse. This bulletin replaces the version dated 9/15/20. Information has been added about raising the system voltage to normal range to clear the "Lost Communication to MPC" code. The multipurpose camera 2 (MPC2) power is supplied via fuse 14 (F14) in New Cascadia vehicles built before August 24, 2020. With this configuration, fault code 232/524127/9 - "Lost Communication to MPC" becomes active during low voltage disconnect (LVD) situations when load shedding is required to maintain critical systems. These instructions provide the procedure for moving the MPC2 power supply from fuse 14 (F14) to fuse 35 (F35). Moving the MPC2 power supply requires the installation of a new etched vehicle power distribution module (VPDM) cover to document the new MPC2 location.

TechTalk7750

Service Bulletin/Repair Instructions

Tech Talk discussion on DETROIT D20M8 ASM DELETED.

TechTalk7762

Service Bulletin/Repair Instructions

Tech Talk discussion on Cruise Control Intermittently Dropping Out.

TechTalk7737

Service Bulletin/Repair Instructions

Tech Talk discussion on Diagnostic Link connection issues with D20M8.

TechTalk7744

Service Bulletin/Repair Instructions

Tech Talk discussion on Active Power steering System concerns.

TechTalk7735

Service Bulletin/Repair Instructions

Tech Talk discussion on 1 Aftertreatment System Problem Detected.

18SP736

Service Bulletin/Repair Instructions

Detroit Diesel Special Publication informing about Heavy Duty Friction Style Belt Tensioner Kit. This heavy duty friction style belt tensioner kit contains the belt tensioner and two M10 bolts to correctly pin the friction style belt tensioner. The M10x80mm bolt is used to pin the engine cooling fan drive arm. The M10x50mm bolt is used to pin the engine accessory drive arm.

20TS-03REV2

Service Bulletin/Repair Instructions

Revised Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change. A newly designed, dual-arm friction shoe damping tensioner was implemented for the DD Heavy Duty Platform. The revision includes additional information on retrofit and service kits.

CALFTL54-012

Service Bulletin/Repair Instructions

Customer Advisory Letter for New Cascadia 29A Battery Cable Relocation.

TechTalk7709

Service Bulletin/Repair Instructions

Tech talk discussion on inaccurate reading DEF gauge.

CTP Letter

Service Bulletin/Repair Instructions

Customer Letter explaining for certain vehicles the software updates for the CTP will require monitoring and may affect service availability.

TechTalk4725

Service Bulletin/Repair Instructions

Tech Talk discussion about power steering fluid.

TechTalk7182

Service Bulletin/Repair Instructions

Tech Talk discussion on New Cascadia front blower motor inoperative.

SF607

Service Bulletin/Repair Instructions

Field Service Campaign for Freightliner Cascadia LG1 Radiator Inlet Hoses. The radiator and upper hose assembly have an alternate design available which may extend the life of the radiator hose and prevent leaking connectors.

TechTalk7686

Service Bulletin/Repair Instructions

Tech Talk discussion on CTP Update Issues

CONMET HUB COMMU

Service Bulletin/Repair Instructions

ConMet Hub Communication on rotor mounting studs installed on steer and drive hubs on vehicles with flat rotors may fracture due to hydrogen embrittlement. Inspection of vehicles may delay delivery of vehicles.

SS1034670

Service Bulletin/Repair Instructions

Service Solution for Fault Code VRDU 524127/9 - Lost Communication with the MPC. This Service Solution has been superseded to service bulletins SB 54-336 and 54-329. Please see the service bulletins for the most current information. VRDU fault code 524127/9 is often caused by lack of ignition supply to the MPC, which causes it to stop communicating. This usually occurs when voltage is low.

TechTalk4563

Service Bulletin/Repair Instructions

Tech Talk discussion for P4 New Cascadia ICU display blank but gauges still work.

TechTalk7691

Service Bulletin/Repair Instructions

Tech Talk discussion about Common Powertrain Controller(CPC) not configured to Cascadia

TechTalk7679

Service Bulletin/Repair Instructions

Tech Talk discussion on repair verification for codes like 'low air flow' when a trailer is not available.

TechTalk7676

Service Bulletin/Repair Instructions

Tech Talk discussion on new Cascadia P4 ICU issue for clearing codes after updating.

TechTalk7677

Service Bulletin/Repair Instructions

Tech Talk discussion on cab air bag mounts. Passenger side air bag leaning.

CALFTL35-001

Service Bulletin/Repair Instructions

Customer Advisory Letter for Inspection of ConMet Disc Brake Rotor to Hub Fastener. Our records indicate that you are the owner of certain vehicles and therefore DTNA is sharing the following documentation with you. Please see the attached instructions on inspecting the ConMet disc brake rotor to hub fastener.

SB54-329

Service Bulletin/Repair Instructions

Updated Service Bulletin for Electrical Wall Chart and VPDM Cover on New Cascadia with Detroit Assurance 5.0 and Multi-Purpose Camera 2. This bulletin replaces the version dated 2/26/2020. Information about Service Bulletin 54-336 has been added.

SB54-331

Service Bulletin/Repair Instructions

Updated Freightliner Service Bulletin for Updated ULB Control Unit for LED Headlamps. This bulletin replaces the version dated July 30, 2020. Information about a reman part has been added. New Cascadia vehicles with light emitting diode (LED) headlamps built from January 1, 2017 through February 17, 2020 may experience intermittent disabled headlamps due to an issue with the universal light ballast (ULB). The LED headlamps can turn off if the supply voltage drops below approximately 9V. This low voltage commonly and momentarily occurs when cranking the engine on a vehicle with batteries that are not fully charged. The momentary low voltage may cause the electronic ULB control unit to malfunction. The ULB may not resume normal function until the power supply to the headlamp is disconnected.

TechTalk7518

Service Bulletin/Repair Instructions

Tech talk discussion on P4 radio for 500k system.

CONMET DISC BRAK

Service Bulletin/Repair Instructions

ConMet Disc Brake Communication for vehicles with flat rotor disc brakes with aluminum hubs may have rotor mounting studs fracture due to hydrogen embrittlement. A hold has been placed on vehicles at plants and facilities to inspect before releasing for delivery.

CONMET FLAT ROTO

Service Bulletin/Repair Instructions

ConMet Work Instructions for Inspection of ConMet Disc Brake Rotor to Hub Fastener. Please see the attached instructions on inspecting the ConMet disc brake rotor to hub fastener. Rotor mounting studs installed on steer and drive hubs on vehicles with flat rotors may fracture due to hydrogen embrittlement.

SB54-335

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Optional 30K High-Current Trailer Cord Circuit Breaker Replacement. New Cascadia vehicles manufactured from September 1, 2016 through June 28, 2020 with an optional high current single- or dual-pole trailer cord were equipped with an auto-reset type I circuit breaker mounted in the battery cable access (BCA) box. Since type I circuit breakers can mask potential issues by resetting every time an over-current condition occurs, Daimler Trucks North America (DTNA) switched to a manual reset type III circuit breaker on June 29, 2020. This bulletin includes instructions for converting from a type I to a type III circuit breaker, how and where to reset a type III circuit breaker, and conditions to be aware of when troubleshooting a type III circuit breaker.

TechTalk7663

Service Bulletin/Repair Instructions

Tech Talk discussion on D20M8-A No updated CPCA software available.

SS1034348

Service Bulletin/Repair Instructions

Service Solution for New Cascadia Unintended 4-way Flashers Activation. As of 8/24/2020 SSAMs received an internal software change that cannot be updated in the field. The software change eliminates the unintended 4-way flasher activation issue documented in this solution. For P4 vehicles built before 8/24/2020 this solutions still applies.

20CSA-15

Service Bulletin/Repair Instructions

Customer Service Announcement for Release of DiagnosticLink 8.12 Service Pack 2. On Thursday, September 3, 2020, Service Pack (SP) 2 for DiagnosticLink 8.12 Standard and Professional will be made available to download from the Detroit Diesel server.

SS1034782

Service Bulletin/Repair Instructions

Service Solution for New Cascadia Bluetooth Microphone Relocation. Similar to Service Solution 1034680 which also informs about relocating the microphone.

CALFTL-OILHUB

Service Bulletin/Repair Instructions

Customer Advisory Letter for Visual Inspection For Oil Presence In Hub. Visual Inspection is necessary for the condition of the oil level in the steer axle hubs.

ICI20-026

Service Bulletin/Repair Instructions

Important Campaign Information Letter informing that revised bulletins for Detroit Diesel campaigns D20R1REV1 and D20M8REV1 have been posted on DTNAConnect.

D20M8REV1

Service Bulletin/Repair Instructions

Revised Detroit Field Service Campaign for GHG17 & GHG21 Detroit DD13, DD15, and DD16 ACM Software Reprogramming. NOTE: Reference 20TS-04 – Detroit™ CPC501T GHG21 Only; Bootloader Update if New Cascadia CPC501T is not at the software level shown in this table.

D20R1REV1

Service Bulletin/Repair Instructions

Revised Detroit Emissions Recall for Daimler Trucks North America LLC, on behalf of its Detroit Powertrain Division, has determined that some Model Year 2020 GHG21 DD13 engines require reprogramming of the MCM to meet certification. NOTE: Reference 20TS-04 Detroit CPC501T GHG21 Only; Bootloader Update if New Cascadia CPC501T is not at the software level shown in this table. The Corrective Procedure also has been updated.

SS1034762

Service Bulletin/Repair Instructions

Service Solution for P4 Cascadia Front HVAC Evaporator Freezing. Front evaporator freezes creating ice buildup, reducing airflow through the vents. The evaporator freezing condition is very hard or cannot be duplicated, in a repair facility. Because the condition is hard to duplicate, determining root cause is still under investigation.

WI20-015

Service Bulletin/Repair Instructions

Warranty Information Letter for Active Lane Assist Steering Column - Providing Serial Number During Claim Entry. The serial number for an ALA steering column is scanned at installation and displays in OWL on the Major Components screen. Effective for repairs performed on or after August 24, 2020, if a factory-installed ALA steering column is replaced due to a warrantable failure, the serial number will be required on the Failure tab. If the replacement serial number is not entered on the claim, a red error message will display.

D20R1

Service Bulletin/Repair Instructions

Detroit Emissions Recall for GHG21 Detroit DD13 Model Year 2020 Software Reprogramming. Daimler Trucks North America LLC, on behalf of its Detroit Powertrain Division, has determined that some Model Year 2020 GHG21 DD13 engines require reprogramming of the MCM to meet certification.

SB26-051

Service Bulletin/Repair Instructions

Updated Service Bulletin for DT12 Transmission Cooler Retrofit. This bulletin replaces the version dated 09/18/2019. The part number for the oil control valve has been updated in the parts table.

CALFTL54-011

Service Bulletin/Repair Instructions

Customer Advisory Letter for How to program the IPPC module using DiagnosticLink.

CALFTL54-010REV

Service Bulletin/Repair Instructions

Revised Customer Advisory Letter for New Cascadia ABS Warning Light Illumination work instructions. Due to the enhanced vigilance of the New Cascadia ABS controller, some fault codes and indicator lights do not necessarily require immediate maintenance attention. DTNA and WABCO are currently jointly working on a long-term corrective plan for the condition. REVISED: This CAL replaces the CAL issued June 17th, 2020. The phrase "if equipped" in reference to cab load disconnect switches has been removed.

ICI20-022R

Service Bulletin/Repair Instructions

Revised letter is to announce a reimbursement available to dealers for travel to a customer's location to perform a recall or field service campaign. Potential travel reimbursement applies to DTNA truck dealers and Detroit Diesel distributors. Thomas Built Buses will be addressed separately.

FP31-029

Service Bulletin/Repair Instructions

Freightliner Parts technical bulletin for Aftermarket Bumper Replacement. In order to reduce part proliferation, and maintain relevant stock in the Parts Distribution Center (PDC), service bumpers were created. While ordering a production bumper replacement, order one of the eight service bumpers from Table 1, and relevant interchangeable parts from Table 2 based on vehicle configuration.

D20M8

Service Bulletin/Repair Instructions

Detroit Field Service Campaign for GHG17 & GHG21 Detroit DD13, DD15, and DD16 ACM Software Reprogramming

ICI20-022

Service Bulletin/Repair Instructions

Important Campaign Information letter announcing Dealer Travel for Campaign Performance. This letter is to announce a reimbursement available to dealers for travel to a customer’s location to perform a recall or field service campaign.

WI20-012

Service Bulletin/Repair Instructions

Warranty Information Letter informing that to ensure that DTNA policies and service network practices align, the Warranty Department will be revising the Warranty Manual.

WI20-014

Service Bulletin/Repair Instructions

Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance. In the spirit of continuous improvement, DTNA reviewed sublet-related policies and procedures. The goal was to improve language clarity and optimize processes.

SB42-078

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Meritor Steer Axle Drum Brake Squeal. Some Cascadia and New Cascadia vehicles equipped with Meritor steer axle drum brakes with a front axle rating less than 13,300 lb (6038 kg) have experienced brake squealing noise when the service brakes are applied at lower speeds. NOTE: This is a nuisance noise issue and not a failure. The solution given in this service bulletin may fix this issue.

SB54-332

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for In Rail Battery Box Cable Rub Repair. New Cascadia vehicles ordered with battery box data codes (282-014-BATTERY BOX[ES] MTD IN RL BOC or 29G-001-PLASTIC AUX BATT BOX MTD BTWN RLS) mounted on in rails at the back of the cab, have battery cables that are exposed to rubbing, which may result in excessive chaffing. Chaffing is observed more on the ground cable exiting the box. Typically, the battery rubs are found during the routine battery inspections. The symptoms related to excessive chafing could include low battery voltage faults, or slow or no engine crank.

SB54-333

Service Bulletin/Repair Instructions

Service Bulletin for Installing a Fog Lamp Backshell. The connector that attaches to the fog lamp is exposed to water spray from the front tires. Even though the connector is sealed, water spray, in addition to wiring that may be pulled sideways, can cause water intrusion into the connector. A backshell can be added to the connector to provide shielding from direct water spray. It also provides strain relief for the wires entering the connector.

20CSA-10

Service Bulletin/Repair Instructions

Customer Service Announcement informing that Service Pack (SP) 1 for DiagnosticLink® 8.12 Standard and Professional is available to download from the Detroit Diesel server.

20OEM-05

Service Bulletin/Repair Instructions

OEM and distributor announcement for DiagnosticLink 8.12 (Build 4527) was made available. All DTNA Service shops & OEM locations are required to maintain the latest version of software on each of their stations.

20TS-05

Service Bulletin/Repair Instructions

Technical Service Letter for EPA10, GHG14, GHG17 Diesel Particulate Filter (DPF) Compatibility. Note: This document supersedes 14 TS-25 and 15 TS-8. Detroit Diesel has determined that some, Diesel Particulate Filters (DPFs) are compatible in pairs and or can be mixed together within EPA10 and GHG14 Systems. For 1-BOX and Two-Box Configuration Aftertreatment Systems (ATS), this is only possible when the filters are used in accordance with Tables 1 and 2 shown below. All other DPFs, NOT mentioned below, are NOT compatible.

20CSA-09

Service Bulletin/Repair Instructions

Customer Service Announcement for DiagnosticLink Software Update Reminder. Due to various software changes and fixes, vehicles will require DiagnosticLink 8.12 to perform functional programming. Failure to use this version may cause errors, incomplete programming, and poor vehicle performance. Because of this, all DiagnosticLink 8.09 installed versions will be disabled as of Thursday, July 23, 2020.

SB31-044

Service Bulletin/Repair Instructions

Service Bulletin for Reflective Tape Installation. If a truck tractor is ordered without mudflaps and/or mudflap support brackets, the rear reflective tape applied to the mudflaps or mudflap brackets during production is delivered loose with the vehicle. FMVSS/CMVSS 108 S5.7.1.4.3 requires reflective tape on all truck tractors domiciled in the United States and Canada.

SS1034758

Service Bulletin/Repair Instructions

Service Solution for New Cascadia Window Regulator Motor Stop Working. The window regulators motors are not designed to be run continuously. The window regulator motors have a thermal cutoff. If they are run long enough, there will eventually be an open circuit and get a fault code.

SF611

Service Bulletin/Repair Instructions

Field Service Campaign for Cascadia CTP Reset. Certain vehicles equipped with DTNA's proprietary Common Telematics Platform (CTP) are not communicating and, therefore, are unable to benefit from over-the-air software updates. The CTP will be reset and some will also be initialized.

SB60-171

Service Bulletin/Repair Instructions

Service Bulletin for Guidelines for Cleaning and Disinfecting Cab Surfaces. The following guidelines are for cleaning and disinfecting commonly touched surfaces on the inside and outside of a vehicle. For best results, follow cleaning and disinfecting procedures fully and consistently. Ensure there is adequate ventilation when using chemicals. NOTICE: Wipe down fragile components carefully to avoid damaging the vehicle.

SB26-053

Service Bulletin/Repair Instructions

Updated Service Bulletin for Eaton-Cummins Endurant Transmission. This bulletin replaces the version dated 05/18/2020. The link to the transmission service information has been updated. A new line of transmissions will be available in the Freightliner vehicles at the beginning of April 2020. The Eaton-Cummins Endurant is a manual transmission that uses compressed air for shifting and clutch actuation. It also requires a specific clutch assembly that is different than the current Eaton product line.

SB54-330

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Compressor Bracket Modification to Reduce Harness Chafing. New Cascadia vehicles with Detroit HDEP engines may experience engine harness chafing at the harness support bracket that mounts on the air compressor. To avoid this issue, a new hole is drilled on the bracket to enhance the spacing with tie straps and reduce harness contact with the mounting bolt. Additional harness wrapping is added to reduce the harness chafing.

20TS-03REV

Service Bulletin/Repair Instructions

Revised Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change. A newly designed, dual-arm friction shoe damping tensioner was implemented for the DD Heavy Duty Platform.

CALABSMODVALVE1

Service Bulletin/Repair Instructions

Customer Advisory Letter for ABS Modulator Valve Replacement. Provides additional information as announced in CALABSMODVALVE communication.

CALFTL42-002

Service Bulletin/Repair Instructions

Customer Advisory Letter for Antilock Brake System (ABS) Modulator Valve Replacement work instructions.

CALFTL54-010

Service Bulletin/Repair Instructions

Customer Advisory Letter for New Cascadia ABS Warning Light Illumination work instructions. Due to the enhanced vigilance of the New Cascadia ABS controller, some fault codes and indicator lights do not necessarily require immediate maintenance attention. DTNA and WABCO are currently jointly working on a long-term corrective plan for the condition.

D20M3

Service Bulletin/Repair Instructions

Detroit Field Service campaign for DETROIT Export DD15 and DD13 Valve Lash Adjustment, Throttle Connector O-ring, and TC Air Line Spacer Installation.

SS1034740

Service Bulletin/Repair Instructions

Service Solution for CTP Reset Warning When Using DiagnosticLink Version 8.12. Starting with DiagnosticLink version 8.12, a new Common Telematics Platform (cTP) Not Communicating Over the Air symptom based Advanced Diagnostic procedure was released with the intent to resolve specific issues on a certain population of trucks. Please, do not run this procedure unless specifically directed by a DTNA field service representative, or by the Detroit Connect support team.

SB60-170

Service Bulletin/Repair Instructions

Service Bulletin for Wear Pad Installation. The area of the floor mat near the throttle pedal is more prone to wear. To extend the life of a floor mat, a wear pad can be installed on it near the throttle and brake pedal area.

20CSA-08

Service Bulletin/Repair Instructions

Customer Service Announcement for Release of DiagnosticLink 8.12. On Wednesday, June 10, 2020, DiagnosticLink 8.12 will be made available for download from the ordering system. Current subscribers of DiagnosticLink 8.xx can upgrade to DiagnosticLink 8.12 at no cost. All DTNA service shops are required to maintain the latest version of software on each of their stations.

WI20-009

Service Bulletin/Repair Instructions

Warranty Information Letter for a Warranty Service Replacement Engine Program Clarification. Detroit established the Warranty Service Replacement Engine Program to support an unrepairable catastrophic engine failure due to manufacturing defect. To improve understanding and utilization of the program, DTNA is clarifying eligibility and engine returns.

20TS-03

Service Bulletin/Repair Instructions

Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change. A newly designed, dual-arm friction shoe damping tensioner was implemented for the DD Heavy Duty Platform.

CALFTL54-009

Service Bulletin/Repair Instructions

Customer Advisory Letter on New Cascadia ABS Fault Codes 520216/31 and 629/11

CALWALMART

Service Bulletin/Repair Instructions

Customer Advisory Letter for Walmart for Draglink Inspection. Walmart to inspect the draglink for a loose castlenut at the steering arm connection point.

SB49-041

Service Bulletin/Repair Instructions

Service Bulletin for Remote-Fill DEF Tank Fill Port Torque Value and Required Lubricant. Some New Cascadia vehicles with chassis fairings have remote-fill Diesel Exhaust Fluid (DEF) tanks which have new instructions to replace the remote fill hose and fitting. Proper torque value is critical, as the remote-fill fittings are plastic and can easily crack if overtightened. The gasket on the fill fitting is sensitive to improper installation, and can get pinched, resulting in a DEF leak.

CALFTL01-002

Service Bulletin/Repair Instructions

Customer Advisory Letter for Incorrect Horsepower Rating. Affected vehicles will have their MCM reprogrammed.

FAB250

Service Bulletin/Repair Instructions

Freightliner Action Bulletin FAB250 cascadia sales data bo-2020-07-02

CALABSMODVALVE

Service Bulletin/Repair Instructions

Customer Advisory Letter for ABS Modulator Valve Replacement. DTNA has decided to remove and replace the ABS modulator valves as part of an ongoing supplier quality study.

FAB249

Service Bulletin/Repair Instructions

Freightliner Action Bulletin FAB249 cascadia adr dealer bu-2020-07-02

SB60-164

Service Bulletin/Repair Instructions

Service Bulletin for Marker Light Gasket Leaks, New Cascadia. This bulletin replaces the version dated June 17,2019. A procedure has been added for inspection, repair, and replacement of damaged or spun rivet nuts.

DASHLiftAxle

Service Bulletin/Repair Instructions

DASH announcement for Hendrickson Optimaax 6x2 Lift Axle. Freightliner recently announced the availability of the Hendrickson Optimaax 6x2 lift axle. Due to quality concerns discovered late with pre-series builds, Freightliner has implemented a block in SpecPro as of April 9, 2020, to prevent ordering or quoting of this component until further notice.

WI20-008

Service Bulletin/Repair Instructions

Warranty Information Letter for Warranty Training Online. DTNA is pleased to announce the release of new Warranty-related training videos. The videos provide Warranty content in short instructional videos that are available on demand through the AftermarkeTV Video Channel icon on the Aftermarket Resource Center (ARC) home page.

20CSA-06

Service Bulletin/Repair Instructions

Customer Service Announcement for Gen 5 DD15 Customer Demo Units. To grow on continued success in the market place, we continue to innovate, test and field new products that deliver on Total Cost of Ownership. The test process allows us to field a limited number of Gen 5 DD15 Customer Demo Units (CDU) to further ensure we meet the stringent demands of our customers. There will be approximately twenty CDU vehicles delivered between April and July of 2020. These units may need to be serviced during their time in customer's hands. Initially, there will be limited service procedures available and parts information will not be available in PartsPro.

WP20-006

Service Bulletin/Repair Instructions

Warranty Policy Letter for Handling for Authorized Service Location Part Transfers. To promote 24-hour throughput and maximum efficiency, DTNA is adjusting multiple handling policies: Launching a new handling allowance for parts ordered from another Authorized Service Location because the facing Part Distribution Center (PDC) is out of stock Retiring Detroit's Customer First Program

WP20-007

Service Bulletin/Repair Instructions

Warranty Policy Letter for Chassis Progressive Damage Policy Change. Effective for repair orders opened on or after April 27, 2020, if an Authorized Service Location installed a part which later has a warrantable failure, progressive damage and labor may be covered under the Aftermarket Parts Limited Parts Warranty (Parts Warranty).

WP20-005

Service Bulletin/Repair Instructions

Warranty Policy Letter for Handling Change: Over the Counter Aftermarket Parts Replacement Program. DTNA is pleased to announce that handling will increase to 33% for Misc. Replacement Part type claims filed under the Over the Counter (OTC) Aftermarket Parts Replacement Program.

SB60-167

Service Bulletin/Repair Instructions

Service Bulletin for Draining Water Trapped in the Upper A-Pillar. A water leak in the seams between the cab roof and cab side wall or back wall can result in water becoming trapped in the upper A-pillar area in some Cascadia and New Cascadia vehicles. This water may migrate inside the cab and eventually spill through the marker light fastener clearance holes and drip on the dash.

WI20-004

Service Bulletin/Repair Instructions

Warranty Information Letter for Warranty Long Block Program Change. The Detroit Reman Long Block Program has expanded. The expansion reduces complexity in ordering reman engines and promotes stocking reman engines to meet uptime commitments.

SB54-323

Service Bulletin/Repair Instructions

Service Bulletin for New Cascadia Pana-Pacific 540 Radio Controls Not Operating Normally. Pana-Pacific DEA540 radios (A22-74389-000) may cease to respond to volume control settings from the steering wheel switches or the controls on the radio faceplate, resulting in erratic volume control. The procedure to check the current software version of the radio is updated.

SB54-325

Service Bulletin/Repair Instructions

Service Bulletin for New Cascadia ICUC Active Lane Assist (ALA) Dash Menu Discrepancy. New Cascadia vehicles equipped with Detroit Assurance 5.0 that are not equipped with Active Lane Assist (ALA) may incorrectly display ALA availability in the ICUC quick access menu. The following procedure will provide a parameter update to correct the ICUC menu display.

SB60-168

Service Bulletin/Repair Instructions

Service Bulletin for Installing Rain Gutters for Upper Door Seal Leaks. New Cascadia day cab vehicles with roof fairings may experience minor water leaks through the upper door seals. This issue can be minimized by regularly wiping down the door seals to keep them free of road grime. A rain gutter seal can also be installed above each door using a Cascadia tertiary seal (part number 18-63286-002).

SB60-169

Service Bulletin/Repair Instructions

Service Bulletin for Replacing Windshield Gasket. Different types of cab leaks can result in water dripping from the top of the windshield, onto the dash. Replacing a windshield gasket unnecessarily may create new leak issues. Do not replace a windshield gasket unless it has been confirmed to leak, using the cab pressure test.

CALFTLWS000-01

Service Bulletin/Repair Instructions

Customer Advisory Letter for GWR Label Correction. Freightliner 108SD/114SD, Coronado, New Cascadia, and Business Class M2 vehicles and Western Star 4700 and 4900 vehicles equipped with a certain tire rating have the wrong Component GWR label. DTNA is requesting the current Component GWR label be replaced with the correct label.

SS1034684

Service Bulletin/Repair Instructions

Service Solution for P4 New Cascadia Road Lamp Strain Relief and Water Protection For Electrical Connection. The connector that attaches to the road lamp is exposed to water spray from the vehicles front tires. Even though the connector is sealed, water spray, in conjunction with wiring that may be pulled sideways, can attribute to water intrusion into the connector.

SS1034686

Service Bulletin/Repair Instructions

Service Solution for P4 New Cascadia with Manual Transmissions Does Not Use Bottom Of Clutch Switch For Starting. On the prior P3 Legacy Cascadia vehicles with manual transmission, the Bottom of Clutch (BOC) switch could be uses as an interlock for the engine crank circuit. If programmed in the SAM Cab, the engine crank circuit would require the clutch to be fully depressed in order for the engine to crank. P3 also offered a neutral switch as an interlock that could be used instead of the BOC and would require the transmission to be neutral in order for the engine to crank. P4 New Cascadia only offers the neutral switch as the interlock for engine crank.

SB32-033

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Front Axle Spacer Replacement. This service bulletin replaces the version dated 05/01/2016. This bulletin is updated to include the parts list. Some vehicles may exhibit a lean (right or left) due to weight difference on the front suspension. While this does not affect the operation of the vehicle, it may be visually unpleasing to many customers. To correct this condition, replace the existing front axle spacer on the low side of the vehicle with a thicker one.

SS1034682

Service Bulletin/Repair Instructions

Service Solution for Updated Common Telematics Platform (CTP) Installation and Activation Procedure. Some new CTPs being installed in the field have failed to activate and do not communicate with Detroit Connect back end. The activation of the CTP requires that the VIN and CTP serial number pair is transmitted from DiagnosticLink to the Detroit Connect registration server. When using the old procedure, there may be some factors that may prevent that VIN and CTP Serial Number pairing data from uploading to the server.

SS1034680

Service Bulletin/Repair Instructions

Service Solution for New Cascadia Bluetooth Microphone Relocation. Some fleet drivers are complaining about a lack of reception of the Bluetooth microphone due to it's proximity in the center of the overhead console. The Bluetooth microphone can be relocated into the driver's side overhead panel, either left hand or right hand drive applications.

20CSA-04

Service Bulletin/Repair Instructions

Customer Service Announcement saying that Service Pack (SP) 3 for DiagnosticLink® 8.11 Standard and Professional will be available for download from the Detroit Diesel server.

03.2020 Campaign

Service Bulletin/Repair Instructions

Open recall and Field service Campaigns report send out to Dealers, General Managers, Service managers and warranty managers.

SB00-038

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for vibration troubleshooting - finding the cause. This version replaces the version dated 5/1/14 and adds New Cascadia.

WP20-002

Service Bulletin/Repair Instructions

Warranty Policy Letter explaining the Warranty Department is aligning with the frame rail repair policy, published in DTNA Workshop Manuals, which states that there are very few cases in which welding a heat-treated frame rail is allowed. Therefore, before welding anything on a frame rail, contact the applicable regional service representative for approval.

SB46-057

Service Bulletin/Repair Instructions

Service Bulletin for APS3 Steering Gear Calibration. Vehicles equipped with an APS3 steering gear require calibration when an axle alignment is performed. Calibration is also needed when servicing any steering or suspension components, frame extension bracket or wheels or tires.

20CSA-03

Service Bulletin/Repair Instructions

Customer Service Announcement saying that Service Pack (SP) 2 for Diagnostic Link 8.11 Standard and Professional will be available for download from the Detroit Diesel server.

20TS-02

Service Bulletin/Repair Instructions

Technical Service Letter for DD Platform Heavy Duty, Metal in the Oil and Oil Filter. Some engine component failures can cause metallic debris to circulate throughout the engine lubrication system. Although the oil filter will capture most of this debris, some debris may enter the clean side of the lubrication system during oil filter bypass. Detroit has created a lubrication system cleaning and flushing procedure to address this problem.

DRVRFacingCamera

Service Bulletin/Repair Instructions

DASH letter to dealers on updating the driver facing camera to improve captured video quality. The concern only impacts the quality of video captured and transmitted to the SafetyDirect Portal during an Active Brake Assist event or driver requested video recording.

P4HalogenEnhance

Service Bulletin/Repair Instructions

Customer Maintenance Enhancements for the P4 Halogen Lamp replacement procedure.

CALHIGHCURRENT

Service Bulletin/Repair Instructions

Customer Advisory Letter that an inspection to determine if the high current breaker has been bypassed.

SB54-324

Service Bulletin/Repair Instructions

Service Bulletin for certain New Cascadia equipped with Detroit Assurance 5.0, may have been ordered incorrectly without automatic headlamps and rain sensing wipers. If equipped with Detroit Assurance 5.0, daytime running lights (DRL), no exterior sun visor, and no cruise control options that disengage with the headlights or wipers, the automatic headlamps and wipers can be retrofitted.

CALFTL54-002

Service Bulletin/Repair Instructions

Customer Advisory Letter on Enabling Horn Alarm with the Door Open and the Park Brake Set

54302

Service Bulletin/Repair Instructions

ABS Light illuminating in the ICU.

8V491

Service Bulletin/Repair Instructions

ICUC Bulb check function.

SS1033638

Service Bulletin/Repair Instructions

SS 1033638 - Power Window Express Down Module Discontinued

TK-APU

Service Bulletin/Repair Instructions

Evolution APU No Regen.

SS1033523

Service Bulletin/Repair Instructions

Service Solution SS 1033523 Airliner Suspension Dump and Raise Functionality and Troubleshooting

SS1033482

Service Bulletin/Repair Instructions

SS1033482: Trailer Stop lamp activation w/ hand valve (parameter configuration) - P4 New Cascadia

SS1033452

Service Bulletin/Repair Instructions

SS1033452 Setting the time in the ICUC (New Cascadia)

SB72-40

Service Bulletin/Repair Instructions

On Cascadia vehicles built from November 25, 2013, the drain holes at the bottom of the cab doors were enlarged to improve drainage during the e-coat process in the manufacturing plant. The larger holes allow more cold air to flow through the doors, most noticeably in extreme cold conditions.

FTLCAE182-2017

Service Bulletin/Repair Instructions

New DT12 Transmission for Original Cascadia

SS1023069

Service Bulletin/Repair Instructions

Cascadia - Engine Will Not Crank (No Starter Output from SAM Cab)

SS1033198

Service Bulletin/Repair Instructions

Service Solution SS 1033198 P4 New Cascadia Refrigerator Power Supp...

SS3704

Service Bulletin/Repair Instructions

Cascadia Fault codes 6.0

SS1032974

Service Bulletin/Repair Instructions

SS 1032974 High Oil Pressure on 2017 DTNA Vehicles Instrument Cluster Display

SS3672

Service Bulletin/Repair Instructions

SAM Cab & SAM Chassis Wall Charts

FTLCAE173-2017

Service Bulletin/Repair Instructions

Air-to-Oil Coolers for DT12 in New Cascadia

FTLCAE172-2017

Service Bulletin/Repair Instructions

New Accuride Aluminum Wheels

SS1033094

Service Bulletin/Repair Instructions

Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...

SS1033047

Service Bulletin/Repair Instructions

Service Solution SS 1033047 M2 Battery Drain Problem – Mismatched I...

TS1033014

Service Bulletin/Repair Instructions

Training Solutions for Fuel Leak Found at High Pressure Fuel Pump Weep Hole for Heavy Duty DD Engines. Occasionally we see trucks come in with fuel leaking from the high pressure fuel pump weep hole. This is NOT a defect in the pump and further diagnostics need to be performed to find the root cause.

SS469076

Service Bulletin/Repair Instructions

Odometer racks up mileage when the vehicle is stationary - Cascadia

FAB209

Service Bulletin/Repair Instructions

Freightliner Action Bulletin FAB209 DT12 PTO

FTLCAE167-2016

Service Bulletin/Repair Instructions

Important Update for Parked HVAC System Options

FAB158

Service Bulletin/Repair Instructions

Freightliner Action Bulletin FAB158 Cummins Eaton SmartAdvantage

FAB154

Service Bulletin/Repair Instructions

Freightliner Action Bulletin FAB154 New options for Cascadia

FAB153

Service Bulletin/Repair Instructions

Freightliner Action Bulletin FAB153 New Harness Highway for Cascadia

FAB145

Service Bulletin/Repair Instructions

Freightliner Action Bulletin FAB145 New Cascadia Roof Fairing

FAB146

Service Bulletin/Repair Instructions

Freightliner Action Bulletin FAB146 Cascadia LED headlights

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.

2021 Freightliner Cascadia Service Bulletins: 450 bulletins | CarFathom