TSB-54-384-FTL
Service Bulletin/Repair Instructions
Technical Service Bulletin for Grote OEM and Alliance Aftermarket Headlamp Replacement
Vehicle report
2021 FREIGHTLINER BUSINESS CLASS M2
Service bulletins
182 bulletinsTechnical 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.
SS 583814
Other
Service Solution for A22-82459-000 Wiper Motor Wiring Connector Pinned Wrong (305)
CXA 03_26_ABS LA Fault
Other
CX Advocate for 1810/02 ABS longitudinal acceleration fault (TSB-54-104-WST,TSB-54-379-FTL)
FleetCom_ESC Warning Lamp
Other
Fleet Communications for TSB-54-379-FTL & TSB-54-104-WST ESC warning lamp and ECU replacement
MyCom_02062026-1
Other
My Communications for update on UFU R61709 Fuel Filters
TSB-54-379-FTL
Service Bulletin/Repair Instructions
Revised Technical Service Bulletin for ESC Warning Lamp and ECU Replacement
CXA_01_26_Trans Support
Other
CX Advocate for Aftermarket Transmission Support
FleetCom_Heater Core
Other
Fleet Communications for Heater Core Plugging
FleetCom_Oil Plug Loc
Other
Fleet Communications for NFD Lower Oil Plug Location - SP Axles
SF671-Bulletin
Service Campaign
Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI
SF671-DLR LTR
Service Campaign
Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI
MYCOM_10302025-1
Other
My Communications for Update to DTNA parts on UFU R61709
CXA 10_25_Air Dryer Purge
Other
CX Advocate for Experiencing Excessive Purging from Air Dryer
CXA_10_25_Conmet Oil Pan
Other
CX Advocate for ConMet Oil Pan Insert Additional Issues
MYCOM_09022025-1
Other
My Communications for UFI 0-Ring Announcement
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
TSB88-048-FTL
Service Bulletin/Repair Instructions
Technical Service Bulletin for New Grill Design
PB33-004-FTL
Service Bulletin/Repair Instructions
Parts Bulletin for Tie Rod Assembly Part Breakdown
SS3124-FTL
Other
Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and Diagnosticlink Issue
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)
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
SS3143-FTL
Other
Revised Service Solution for M2 Plus Fault Code 232/524000/19- ECU CPC data error
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_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
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
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_M2, SD Transfer
Other
CX Advocate for M2 and SD Vehicles Transfer Case Failures Due to Excessive Vehicle Speed (SS 3155-FTL)
TSB91-016-FTL
Service Bulletin/Repair Instructions
Technical Service Bulletin for Repairing Seat Occupancy Sensor for ISRI, SEARS and National Truck Seats
SS1032998-FTL
Other
Service Solution for M2 mirror wind noise
WI24-019
Warranty Program/Extension
Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates
PB01-009
Other
Parts Bulletin for Powertrain Power Distribution Module (PTPDM) Kit Replacement
SS3155-FTL
Other
Service Solution for M2 and SD Vehicles Transfer Case Failures Due to Excessive Vehicle Speed
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.
SS1023366-Detroit
Other
Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
CXA 9_24_MDEG Updates
Other
CX Advocate for MDEG Updates
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_Conmet Oil Pan
Other
CX Advocate for ConMet Oil Pan Insert Additional Failures
CXA 8_24_MDEG Updates
Other
CX Advocate for MDEG Updates
CXA 7_24_AutoElevate Disa
Other
CX Advocate for AutoElevate Disablement Gen5 Engines
CXA 7_24_Conmet Oil Pan
Other
CX Advocate for ConMet Oil Pan Insert Additional Failures
CXA 7_24_MDEG Updates
Other
CX Advocate for MDEG Updates
CXA 7_24_NOx
Other
CX Advocate for NOx conversion low faults. Update to CXA 6_24_NOx submission.
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
ICI24-025
Service Campaign
Revised Important Campaign Inofrmation letter for SF671 - Bulletin Revision. REVISION: 3 new SRTs and repair procedures have been created to address specific issues that arise during the repair.
SF671_V2-Bulletin
Service Campaign
Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI. REVISION: 3 new SRTs and repair procedures have been created to address specific issues that arise during the repair.
SF671_V2-DLR LTR
Service Campaign
Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI. REVISION: 3 new SRTs and repair procedures have been created to address specific issues that arise during the repair.
TSB35-042-FTL
Service Bulletin/Repair Instructions
Technical Service Bulletin for New Final Drive Over Heat Diagnostic
SS734-WST
Other
Service Solution for Thread Spring Pin Suspension Alignment & Installation
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
VSWP Customer Letter
Other
Customer letter regarding variable speed water pump.
MYCOM_05142024-1
Other
My Communications for SSI DEF Header Warranty Policy Extension for B6 7 Engines Model Years 2017-2021
CumminsB6.7SSI
Service Bulletin/Repair Instructions
Extended Warranty Policy for certain Cummins B6.7 engines with SSI DEF headers for EPA and CARB Emissions Reporting
SS3144-FTL
Service Bulletin/Repair Instructions
Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller
ICI24-013
Service Bulletin/Repair Instructions
Important Campaign Information letter for SF671 Campaign Suspended
ICI24-009
Service Bulletin/Repair Instructions
Important Campaign Information letter for SF671 - Bulletin Revision. REVISION: If you find modifications to the chassis, please submit a WSC Inquiry before beginning any additional work.
SF671
Service Bulletin/Repair Instructions
Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI. REVISION: If you find modifications to the chassis, please submit a WSC Inquiry before beginning any additional work.
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
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
SF672
Service Bulletin/Repair Instructions
Field Service Campaign for Common Telematics Platform Software Update
ICI23-010
Service Bulletin/Repair Instructions
Important Campaign Information letter communicating that SF660 Field Service Campaign is Replaced by FL967.
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
SB54-295
Service Bulletin/Repair Instructions
Revised Freightliner Service Bulletin for Replacing an Auto Baud Rate Detecting Bulkhead Module with a Fixed Baud Rate BHM. Description of Revisions: This bulletin replaces the version dated 02/01/2016. Information about auto baud rate connections has been included.
SB83-161
Service Bulletin/Repair Instructions
Updated Freightliner Service Bulletin for Heater Hose Reduced Clearance May Cause Early Horn Failures
SB49-042
Service Bulletin/Repair Instructions
Freightliner Service Bulletin for DEF Connector Reinforcement Caps.
CALFTL46-002
Service Bulletin/Repair Instructions
Customer Advisory Letter for M2 Front Steer Arm â Drag Link Ball Joint Connection Inspection
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.
SS3090-FTL2021
Service Bulletin/Repair Instructions
Service Solution for DD8 Engine Harness Chafing Air Compressor Suction Line.
CALFTL31-004
Service Bulletin/Repair Instructions
Customer Advisory Letter for 4-Hook Chain Hanger Replacement.
SB60-176
Service Bulletin/Repair Instructions
Freightliner Service Bulletin for Insulated Automatic Transmission Cover Plate. Some Business Class M2 and 108/114 Severe Duty vehicles equipped with a compressed natural gas (CNG) engine and automatic transmission may experience higher exhaust temperatures than vehicles equipped with a diesel engine.
SF624
Service Bulletin/Repair Instructions
Freightliner Field Service Campaign for Freightliner M2 DD5 Fan Hub Fasteners. Fan hub bolts may be insufficiently torqued which could lead to a failure and excessive truck down time.
SS1034797-2021
Service Bulletin/Repair Instructions
Service Solution for M2,108SD, 114SD Coolant Level Sensor P/N 06-93316-002. The Call Center has received several calls pertaining to this LCL sensor introduced to in 2018. The purpose of this solution is to bring better awareness to the sensor functions, fault codes generated, along with providing testing procedures used to validate the sensors condition. Additional information has been added.
CALFTL32-011
Service Bulletin/Repair Instructions
Customer Advisory Letter for 80KSI Frame Reinforcement Installation on specific Business Class M2 equipped with 80KSI frame rails and an Airliner 20,000 lb or 21,000 lb rear suspension.
SB54-320
Service Bulletin/Repair Instructions
Updated Service Bulletin for upgrading BHM software for switch expansion module fault SPN 698 FMI 7. This bulletin replaces the version dated 11/11/2019. Figure 3 has been updated with a new hardware part number. A procedure was added to the data download process.
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.
SF621
Service Bulletin/Repair Instructions
Freightliner Field Service Campaign for Freightliner Drag Link Cotter Pin. Errors found in the cotter pin installation process indicate that it may not have been completed properly. This may result in the cotter pin not being bent correctly or missing altogether.
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.
TechTalk12372K
Service Bulletin/Repair Instructions
Tech Talk continuing discussion on MARMON HARRINGTON VPD ELGIN SWEEPER DROP OOUT.
TechTalk12374K
Service Bulletin/Repair Instructions
Tech Talk continuing discussion on M2 SPLICE PACKS IN DASH AND FONTAINE MODULES.
SB54-328
Service Bulletin/Repair Instructions
Updated Freightliner Service Bulletin for Rerouting Wiring Harness to Reduce Chafing. This bulletin replaces the version dated 06/29/2020. Two new illustrations have been added to demonstrate proper application of butterfly tie straps on the transmission. ---Allison transmission wiring harness chafing causes disruption to gear engagement and fault code generation. To reduce chafing, the wiring is routed using stand off brackets and tie straps to minimize contact with the transmission parts. This bulletin applies to vehicles equipped with on-board diagnostics (OBDs) manufactured after 2016.
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.
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.
SS3073FTL2021
Service Bulletin/Repair Instructions
Service Solution for M2 Rear Suspension Knock. This document applies to Freightliner M2 Business Class used in a âFire/Emergencyâ application and equipped with FTL flat leaf spring rear suspensions. The FTL flat leaf spring rear suspension permits the spring pack to shift laterally within the spring hanger brackets. Under heavy cornering load applications, the spring pack can shift laterally and contact the sidewall of the spring hanger bracket. Driver of the vehicle will detect an audible popping or knocking noise from the rear suspension when turning the vehicle.
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.
KU1804 Fuel Pump
Service Bulletin/Repair Instructions
Email from DDC Service Engineering regarding a fuel pump replacement on a population of 18 MY2019-2021 Freightliner M2 vehicles.
SB54-308
Service Bulletin/Repair Instructions
Freightliner Service Bulletin for Programming Chassis Electronic Control Units (ECUs) With DiagnosticLink.
20TS-08REV
Service Bulletin/Repair Instructions
Revised Technical Service Letter for Fault Code SPN 2629 FMI 10 on GHG21 936.917 DD8 Dual Stage Turbo with MCM Software Version 14.
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.
WI21-005
Service Bulletin/Repair Instructions
Warranty Information Letter for Body Builder/Truck Equipment Manufacturer Demonstration Program.
WI21-006
Service Bulletin/Repair Instructions
Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines.
TechTalk7086
Service Bulletin/Repair Instructions
Tech Talk continued discussion on NEW M2 DD8 TURBO OUTLET TEMP SENSOR.
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.
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.
TechTalk8090
Service Bulletin/Repair Instructions
Tech Talk discussion on M2 500k issue.
Techtalk8076
Service Bulletin/Repair Instructions
Tech talk discussion on M2 VIN KN8076 shutting down intermittently.
TechTalk8065
Service Bulletin/Repair Instructions
Tech Talk discussion on M2 106 ABS Battery Power Issue.
CALFTL88-001
Service Bulletin/Repair Instructions
Customer Advisory Letter for Freightliner M2 Forward-Frame Extension Hood Mount Bracket Gusset Installation.
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.
Techtalk7086
Service Bulletin/Repair Instructions
Tech Talk discussion on M2 DD8 TURBO OUTLET TEMP SENSOR.
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.
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-08
Service Bulletin/Repair Instructions
Technical Service Letter for Fault Code SPN 2629 FMI 10 on GHG21 936.917 DD8 Dual Stage Turbo with MCM Software Version 14
CALFTL32-006R
Service Bulletin/Repair Instructions
Revised Customer Advisory Letter for Hendrickson Primaax EX 69,000 lb Tri-Axle Rear Air Suspension Height-Control Valve Relocation. Revision is Step 8 drilling instructions expanded. The attached document provides work instructions for relocating the height-control valve downward 1.62 inches (41.3 mm) to prevent the linkage from protruding above the top flange of the frame when the suspension air is dumped.
TechTalk7516
Service Bulletin/Repair Instructions
TechTalk discussion on M2 low coolant level. Prior post concerned correcting an incorrect listed part number.
TechTalk7856
Service Bulletin/Repair Instructions
Tech Talk discussion on 2021 M2 CHM fuse.
CALFTL54-013
Service Bulletin/Repair Instructions
Customer Advisory Letter for Updating the RP170 Customer Access Connector and Adding Overlays for J1939. The Electrical Guide for M2106, M2112, 108SD, 114SD Body Builder Reference Guide Revision: D June 2019 incorrectly displays pins 2 and 3 of the customer access 8 pin connector on table 5 as Hot with crank, Ignition controlled battery (+) thru Disconnect switch (If disconnect switch specified).
SS1034797
Service Bulletin/Repair Instructions
Service Solution for M2,108SD, 114SD Coolant Level Sensor P/N 06-93316-002. The Call Center has received several calls pertaining to this LCL sensor introduced to in 2018. The purpose of this solution is to bring better awareness to the sensor functions, fault codes generated, along with providing testing procedures used to validate the sensors condition.
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 AutoMeterî 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-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.
TechTalk7759
Service Bulletin/Repair Instructions
Tech Talk discussion on M2 Viscous Fan and A/C Pressure.
TechTalk7658
Service Bulletin/Repair Instructions
Tech Talk discussion on M-2 gauges inoperative at times due to paint on backside of nut on PNDB.
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.
CALFTL20-003REV
Service Bulletin/Repair Instructions
Revised Customer Advisory Letter for Fan Hub Fastener Inspection in Business Class M2 Vehicles with DD5 Engines. The revision has updated inspection procedures. DTNA has determined that some GHG17 Detroit DD5 engines will need to have the fan hub bolts inspected for correct torque.
TechTalk4725
Service Bulletin/Repair Instructions
Tech Talk discussion about power steering fluid.
CALFTL20-003
Service Bulletin/Repair Instructions
Customer Advisory Letter for Fan Hub Fastener Inspection in Business Class M2 Vehicles with DD5 Engines. DTNA has determined that some GHG17 Detroit DD5 engines will need to have the fan hub bolts inspected for correct torque.
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.
TechTalk7679
Service Bulletin/Repair Instructions
Tech Talk discussion on repair verification for codes like 'low air flow' when a trailer is not available.
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.
TechTalk4374
Service Bulletin/Repair Instructions
Tech Talk Discussion for M2 mirror shake. Vehicle has excessive mirror shake going down the road.
TechTalk7673
Service Bulletin/Repair Instructions
Tech talk discussion on 2021 M2 BHM/CHM issue. Left tail light goes out when brake lights come on.
TechTalk7657
Service Bulletin/Repair Instructions
Tech Talk discussion on 500k data link.
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.
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.
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.
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.
CALFTL32-006
Service Bulletin/Repair Instructions
Customer Advisory Letter for Hendrickson Primaax EX 69,000 lb Tri-Axle Rear Air Suspension Height-Control Valve Relocation. The attached document provides work instructions for relocating the height-control valve downward 1.62 inches (41.3 mm) to prevent the linkage from protruding above the top flange of the frame when the suspension air is dumped.
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.
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.
ICI20-024
Service Bulletin/Repair Instructions
Important Campaign Information letter announcing that SF605 for LED Step Lighting has been suspended. 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.
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 customerÃÂÃÂÃÂâÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂs 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.
SB31-043
Service Bulletin/Repair Instructions
Freightliner Service Bulletin for Non-Airliner Rear Suspension Crossmember Fastener Change. With the start of production on March 2, 2020, the fasteners used to assemble the non-Airliner rear suspension (bogie) crossmember have changed. The rear suspension bogie crossmember gussets to the C-channel will be assembled with 5/8 - 18 fasteners. This change includes a revision to a higher friction nut that requires an increase in tightening torque. The new higher friction nut can be identified by its green color.
20CSA-10
Service Bulletin/Repair Instructions
Customer Service Announcement informing that Service Pack (SP) 1 for DiagnosticLinkÃÂÃÂÃÂÃÂÃÂÃÂÃÂî 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.
SB54-334
Service Bulletin/Repair Instructions
Service Bulletin for Front Lighting Ground Splice Pack Failure. The left and right hood lighting of these vehicles have separate ground paths to the frame and use the same splice pack parts. The splice packs are part of the hood commodity and located near the headlight assemblies. These splice packs can fail, resulting in either the left or right lighting becoming intermittent or inoperative.
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.
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.
SF605
Service Bulletin/Repair Instructions
Field Service Campaign for LED Step Lighting. The frontwall harness that controls the LED step lighting is wired incorrectly. The frontwall harness will be repinned.
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.
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.
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.
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.
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.
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.
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.
CALFTL32-003REV
Service Bulletin/Repair Instructions
Customer Advisory Letter Revision for Airliner 21K Lightweight Extra Duty Rear Suspension Height Control Valve Installation. The rear suspension height control valve and linkage installation on these 15 vehicles will need to be corrected using the following work instructions. Since this CAL was originally published on 3/6/20, The OWL VMRS correction code has been revised from 996-F204A to 91C-5000A.
CALFTL32-003
Service Bulletin/Repair Instructions
Customer Advisory Letter for Airliner 21K Lightweight Extra Duty Rear Suspension Height Control Valve Installation. The rear suspension height control valve and linkage installation on these 15 vehicles will need to be corrected using the following work instructions.
SS1034679
Service Bulletin/Repair Instructions
Service Solution for M2 ABS Wiring Harness Rubs On Forward Cab Mount. ABS chassis harness is rubbing on the rear of the driver side forward cab mounting bracket on M2 106 trucks with a 160 MM Cab Hgt. This may cause open or shorted circuits in multiple wires in the harness transitioning from the chassis to the cab. Noticeable symptoms include illumination of the ABS and ATC indictor lamps.
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.
SS1033289
Service Bulletin/Repair Instructions
Service Solution SS 1033289 BHM Fault Code SPN 524249 / FMI 7
SS1032728
Service Bulletin/Repair Instructions
SS 1032728 Bulkhead Module Fault Codes 524280 thru 524286 with FMI 7 Clarification
SS1033180
Service Bulletin/Repair Instructions
Service Solution SS 1033180 BHM Fault Code SPN 524251 FMI 7 - Extr...
SS1032974
Service Bulletin/Repair Instructions
SS 1032974 High Oil Pressure on 2017 DTNA Vehicles Instrument Cluster Display
SS1033094
Service Bulletin/Repair Instructions
Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...
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.
SS1032998
Service Bulletin/Repair Instructions
Service Solution SS 1032998 M2 mirror wind noise
SS1032989
Service Bulletin/Repair Instructions
Service Solution SS 1032989 â BHM Fault Code Changes
FL688
Service Bulletin/Repair Instructions
Rear Brake Calipers and Anchor Plates.
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.