Vehicle report

2022 FREIGHTLINER BUSINESS CLASS M2

Service bulletins

139 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.

TSB-54-384-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for Grote OEM and Alliance Aftermarket Headlamp Replacement

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)

CXA 03_26_Surge Tank

Other

CX Advocate for discolored coolant surge tanks (24CSA-20)

FleetCom_Hood Tilt CPC

Other

Fleet Communications for Hood Tilt CPC update and OI Comfort Mode parameters

FleetCom_ESC Warning Lamp

Other

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

FleetCom_PB-47-903-FTL

Other

Fleet Communications for parts bulletin on Fluorosilicone Fuel Tank Cap Seals

PB-47-903-FTL

Other

Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals

MyCom_02102026-1

Other

My Communications for Alliance EX Value Brake Drum

MyCom_02062026-1

Other

My Communications for update on UFU R61709 Fuel Filters

MyCom_02042026-1

Other

My Communications for fifth wheel leg height changes

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

TSB54-377-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin Low Coolant Sensor

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

CXA_10_25_TufTrac M12

Other

CX Advocate for TufTrac M12 Bolts (TSB-32-057-FTL)

TSB32-057-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for TufTrac M12 Bolts

WI25-014

Other

Warranty Information letter for Power Steering Tank Venting Diagnostic Procedures Revision

MYCOM_09092025-1

Other

My communications for DTNA Announces Extended Coverage Policy Updates

MYCOM_09022025-1

Other

My Communications for UFI 0-Ring Announcement

TSB-26-001-DDC

Other

Technical Service Bulletin for DT12 Range Detent Diagnostic

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

24CSA-19Rev

Other

Revised Customer Service Annoucement for No Trouble Found Heavy Duty Engine Product (HDEP) Oil Separator Leaks

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 4_25_SS3172-FTL TPMS

Other

CX Advocate for TPMS water intrusion

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

SS3172-FTL

Other

Service Solution for Tire Pressure Monitoring System (TPMS) Water Intrusion Through Perimeter Seal

SS3143-FTL

Other

Revised Service Solution for M2 Plus Fault Code 232/524000/19- ECU CPC data error

TSB01-002-DDC

Service Bulletin/Repair Instructions

Technical Service Bulletin for Gen 5 DD13 Turbocharger Oil Return Line Cracks

TSB54-373-FTL

Service Bulletin/Repair Instructions

Technical Service Bulletin for SAS01T to SAS03T Replacement Information

D24R7-Bulletin

Emissions

Emission Recall for DD8 EGR Monitor Software Reprogramming

D24R7-DLR LTR

Emissions

Emission Recall for DD8 EGR Monitor Software Reprogramming

D24R7-OWN LTR

Emissions

Emission Recall for DD8 EGR Monitor Software Reprogramming

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

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_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.

24CSA-19

Other

Customer Service Annoucement for Heavy-Duty Engine Product (HDEP) Oil Separator Leaks

24CSA-20

Service Bulletin/Repair Instructions

Customer Service Annoucement for Discolored Coolant Surge Tank on Heavy Duty Engine Product (HDEP)

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

FICM Cleaning

Other

Cleaning Gen5 Engine Fuel Injectors

FICM Email

Other

Fuel Injector Cleaner Updated Procedure

FICM Priming

Other

Fuel Injection Cleaning Machine Priming Procedures

FICM Setup

Other

Draft Fuel Injection Cleaning Machine (FICM) Setup Instructions

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.

CALFTL13-001

Service Bulletin/Repair Instructions

Customer Advisory Letter for Proactive 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

CXA 06_24_Oil Lines

Other

CX Advocate communication for oil lines disconnecting

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.

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

ICI23-028

Service Bulletin/Repair Instructions

Important Campaign Information Letter for SF670 Campaign Reactivation

ICI23-027

Service Bulletin/Repair Instructions

Important Campaign Information Letter for SF670 Campaign Suspended

SF670

Service Bulletin/Repair Instructions

Field Service Campaign for Heated Fuel Water Separator

SF672

Service Bulletin/Repair Instructions

Field Service Campaign for Common Telematics Platform Software Update

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

SB54-355

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for Inoperative Heated Mirrors Low Content BHM Vehicles. Due to a shortage of electronic components, Business Class M2 and 108SD/114SD vehicles built from September 2021 were assembled using low content bulkhead modules (BHM). On these vehicles, the heated mirror control circuit is hardwired (non-multiplexed) instead of being controlled by the BHM (multiplexed).

SB49-042

Service Bulletin/Repair Instructions

Freightliner Service Bulletin for DEF Connector Reinforcement Caps.

MYCOM_120621-1

Service Bulletin/Repair Instructions

New Seats for M2 108SD and 114SD - FTL209

MYCOM_092121-1

Service Bulletin/Repair Instructions

My Communication for Bulkhead Module Production Limitations. Due to continued semi-conductor and microprocessor component supply chain challenges, a redesigned bulkhead module (BHM) control unit will be introduced on the M2 106, M2 112, 108SD, and 114SD models with production schedule dates on and after September 27, 2021. A redesign was required due to the availability of internal components.

SS3090-FTL2021

Service Bulletin/Repair Instructions

Service Solution for DD8 Engine Harness Chafing Air Compressor Suction Line.

AXLEOILSHORTAGE

Service Bulletin/Repair Instructions

Communication for 75W-85 Detroit Axle Oil Supply Shortage.

MCMSHORTAGE

Service Bulletin/Repair Instructions

Shortage Communication Letter for Continued Part Shortages.

CONSOLESHORTAGE

Service Bulletin/Repair Instructions

Storage Console Shortage. Freightliner and Western Star orders with the following option may experience a temporary delay in availability of the storage console mounted on the interior backwall of Daycabs.

SF631

Service Bulletin/Repair Instructions

Field Service Campaign for Detroit Diesel Engine Fan Activation with A/C. On certain Freightliner and Western Star vehicles with Detroit Diesel engines, the engine fan fails to activate when the A/C pressure switch circuit is opened, resulting in poor A/C cooling performance at idle.

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.

PM Sensor Shrtg

Service Bulletin/Repair Instructions

Supply chain shortage notice. Model Year 2022 Freightliner, Western Star, Freightliner Custom Chassis, and Thomas Built Bus vehicles manufactured with the following engines have been built without a Particulate Matter (PM)/Soot sensor: •DD15 Gen 5 (Gats 2.0) (with a June 2021 or later GHG build date) •DD13 Gen4 (1-box) (with a June 2021 or later GHG build date) •Cummins B6.7 (with a June 2021 or later GHG build date) •Cummins X15 with ratings of 400-500HP (with a June 2021 or later GHG build date) As a result, the vehicle has a non-conforming On-Board Diagnostic (OBD) system. The engine manufacturers will pay to install the OBD PM sensor and corresponding software through a recall once sensors become available.

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.

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.

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.

MYCOM_032621-1

Service Bulletin/Repair Instructions

M2 Bulkhead Module Shortage To our Dealer Partners, As a follow up to the DTNA Executive Webinar broadcast to the dealer body on March 16 2021 at12:00pm Pacific, we all understand there is a global shortage of computer chips that unfortunately, will impact our M2 product production. With reference to Table 1 below, the goal of this communication is to provide the part numbers of the affected modules in question and Aftermarket decisions based upon the situation. If you obtain or have any modules in inventory, the current software and Truck models are provided. These module part numbers are now on manual allocation when ordered from DTNA until the situation is rectified.

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.

CALFTL91-001

Service Bulletin/Repair Instructions

Customer Advisory Letter for M2 ISRI Seat Modification. The ISRI seat in these vehicles need to be modified.

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 “Fire/Emergency” 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.

MYCOM_031621-1

Service Bulletin/Repair Instructions

M2 and SD Scheduling Production Update Through a relentless focus on serving our customers, we have continually adapted to overcome the earliest effects of the COVID-19 pandemic to ensure our ability to deliver trucks and parts for those who keep the world moving. However, just a little over one year after the first effects of the pandemic began to impact global semiconductor supply chains, the prolonged duration of these shortages have now reached our own supply chain en masse.

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.

FAB282

Service Bulletin/Repair Instructions

Freightliner Action Bulletin FAB282 New Radios

FAB283

Service Bulletin/Repair Instructions

Freightliner Action Bulletin FAB283 Bendix AutoVue

SS1034797

Service Bulletin/Repair Instructions

Service Solution for M2 108SD 114SD Coolant Level Sensor PN 06-93316-002. This bulletin was updated 1/28/2021 to reflect the removal of the backshell P/N 23-13302-633, as the added length of the backshell makes it difficult to route the harness around the lower mounting bolt of the surge tank.

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...

SS1032998

Service Bulletin/Repair Instructions

Service Solution SS 1032998 M2 mirror wind noise

SS1032989

Service Bulletin/Repair Instructions

Service Solution SS 1032989 – 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.