2019 Freightliner Business Class M2 TSBs
328 Technical Service Bulletins across 16 categories
Categories
Pre-Delivery & Maintenance
66 bulletinsTechnical Service Bulletin for New Grill Design
Important Campaign Information letter for SF695 Campaign Replaced by F1012
Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance...
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Passive Lube Management
Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top...
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Performance Passive Lube Management.
Service Solution for M2 and SD Vehicles Transfer Case Failures Due to Excessive Vehicle Speed
Revised Important Campaign Inofrmation letter for SF671 - Bulletin Revision.
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REVISION: 3 new SRTs and repair procedures have been created to address specific issues that arise during the repair.
Field Service Campaign Owner Reminder Postcard large population
Field Service Campaign Owner Reminder Postcard small population
Technical Service Bulletin for New Final Drive Over Heat Diagnostic
Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance...
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Passive Lube Management
Important Campaign Information letter for SF671 Campaign Suspended
Important Campaign Information letter for SF671 - Bulletin Revision.
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REVISION: If you find modifications to the chassis, please submit a WSC Inquiry before beginning any additional work.
Important Campaign Information letter for FL974 - Revised Bulletin & Population
Important Campaign Information letter communicating that SF660 Field Service Campaign is Replaced by FL967.
Revised Field Service Campaign for Drag Link Tapered Joint
Field Service Campaign for Drag Link Tapered Joint
Freightliner Service Bulletin for DEF Connector Reinforcement Caps.
Service Solution SS 1032989 BHM Fault Code Changes
Service Solution SS 1033180 BHM Fault Code SPN 524251 FMI 7 - Extr...
Service Solution SS 1033289 BHM Fault Code SPN 524249 / FMI 7
Revised Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance.
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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.
Technical Service Letter for Detroit Bearing Failures - Standard Diagnostic Times.
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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.
Warranty Information Letter for Detroit Bearing Failures - Standard Diagnostic Times.
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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.
DDC Technical Service Letter for GHG17 DD Platform Heavy Duty Oil Pan Drain Plug Inserts.
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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.
Revised Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change.
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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.
Service Bulletin for Powertrain PDM and Main PDM Bracket Modication.
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This bulletin replaces the version dated 10/31/2019. The build date section has been added.
Important Campaign Information letter announcing Dealer Travel for Campaign Performance.
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This letter is to announce a reimbursement available to dealers for travel to a customers location to perform a recall or field service campaign.
Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance.
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In the spirit of continuous improvement, DTNA reviewed sublet-related policies and procedures. The goal was to improve language clarity and optimize processes.
Warranty Information Letter informing that to ensure that DTNA policies and service network practices align, the...
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Warranty Department will be revising the Warranty Manual.
Service Bulletin for Guidelines for Cleaning and Disinfecting Cab Surfaces.
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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.
Revised Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change.
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A newly designed, dual-arm friction shoe damping tensioner was implemented for the DD Heavy Duty Platform.
Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change.
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A newly designed, dual-arm friction shoe damping tensioner was implemented for the DD Heavy Duty Platform.
Warranty Information Letter for Warranty Training Online.
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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.
Warranty Policy Letter for Handling for Authorized Service Location Part Transfers.
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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
Open recall and Field service Campaigns report send out to Dealers, General Managers, Service managers and warranty...
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managers.
Freightliner Service Bulletin for vibration troubleshooting - finding the cause.
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This version replaces the version dated 5/1/14 and adds New Cascadia.
Warranty Policy Letter explaining the Warranty Department is aligning with the frame rail repair policy, published in...
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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.
Open recall and Field service Campaigns report send out to Dealers, General Managers, Service managers and warranty...
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managers
Important Campaign Information Letter announcing that revisions to DDC bulletins D19M5 and D19R2 are available.
Important Campaign Information Letter announcing that a revision for D19M4 as a REV2 exists and is available on...
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DTNAConnect.
Service Bulletin for severe duty main PDM installation for vehicles operating in severe moisture and/or corrosive...
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environments.
Technical Service Letter communicating that information on DD Heavy Duty Platform Belt and Belt Tensioner can be found...
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on TechLit.
Service Bulletin for Air Cleaner Modifications for Dusty Environments
Service Bulletin on Dealer Product Report
Communication to assist the field with service vibration issues on DTNA vehicles
Warranty Policy Letter to communicate Detroit Return Changes
Warranty Information Letter to announce addition of Thomas Built Bus as a brand with an Authorized Demonstrator Program
Warranty Information Letter sent to customers regarding new refrigerator supplier for returning parts.
Service Bulletin provided to customers regarding ICU3 to ICU3S Replacement
Training Solution created by DTNA to provide guidance to customers when searching for service information for components...
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and systems not owned by Daimler Trucks North America (DTNA).
Service Bulletin- sb54311 ICU Odometer Programming
Service Solution: 1033988, SPN 879 or 881 FMI 6 Fault Codes
Service Solution: 1033988, SPN 879 or 881 FMI 6 Fault Codes
Service Information Bulletin
Service Bulletin New "Natural Gas Vehicle Information" Webpage
D18M7 ? Replaced by Recall D18R7 (FL802)
Important Warranty Information to Freightliner and Western Star dealers on Transporter Photo Requirement Changes
Release of DiagnosticLink 8.08 Service Pack 2
MY18M4_Bulletin_02-MAY-2018 Field Service Campaign D18M4
aeo18M4 Field Service Campaign D18M4
MY18M4-Bulletin-02-MAY-2018 Field Service Campaign D18M4
aeo18M4 Field Service Campaign D18M4
If a GVWR certification label is lost or damaged, Freightliner will supply a duplicate label.
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Log on to DTNAConnect.com and under "DTNAConnect Resources", select the "Tool and Services" plus sign. Select "Request for Certification Label or OWI." Fillout the form, then select "Review."
sb83155 Espar Service Information
sb54194 Required Maintenance for Freightliner-Branded and Delco Cassette Players
sb54122 ICU3 Service Cluster AvailableB
Other
43 bulletinsFleet Communications for NFD Lower Oil Plug Location - SP Axles
CX Advocate for NOx conversion low faults
CX Advocate for NOx conversion low faults
CX Advocate for NOx conversion low faults
CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the...
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Clean Truck Check.
CX Advocate for M2 and SD Vehicles Transfer Case Failures Due to Excessive Vehicle Speed (SS 3155-FTL)
CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the...
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Clean Truck Check.
CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the...
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Clean Truck Check.
CX Advocate communication for NOx conversion low faults
Customer letter regarding variable speed water pump.
Tech Talk discussion on 2019 m2 dd8 AC inop.
Tech Talk discussion on SCR hydrolysis chamber.
Tech talk discussion on M2 VIN KN8076 shutting down intermittently.
Tech Talk continued discussion on DD8 reoccurring NOx issues.
Tech talk discussion on DD8 reoccurring NOx issues.
Tech Talk discussion on spun rod replacement and low 2318RPM overspeed fault code.
Tech Talk discussion on M-2 gauges inoperative at times.
Tech Talk discussion on repair verification for codes like 'low air flow' when a trailer is not available.
Customer Advisory Letter communicating how to replace the TitanX radiator quick fill/drain fitting.
Tool Letter for ICC5 Programming Cable
Tool Letter for New Final Drive Pinion Cover Install Tool
PowerNet Assessment Tool Repair Procedure
fp00024 Cable-Tie Reference
Letter to customer on Coverage Extension GHG17 After Treatment
Technical Publications Ordering
FL783 - Revised Bulletin
Customer Advisory Letter- Telematics Connections
Operating Hours for the Customer Assistance Center
0508-18 Aftertreatment
sb54299 ICU3 to ICU3S Replacement Guidelines
fp00020 Replacing Gross Vehicle Weight Rating (GVWR) Certification Labels
0508-18 Aftertreatment
sb4932 DEF Gauge Reading Incorrectly
Replacing or Upgrading Airliner 40K Transverse Torque Rods
sb54109 RAMI Antenna
sb54107 Changing Odometer Units
sb54105 Fresh Air Warning Buzzer Disable
sb49039 Cleaning DEF Line ConnectorsB
sb49038 Magnetized Fill Neck for Six-Gallon DEF TanksB
sb31034 Towing ProceduresB
sb4937 2013 OBD GHG14, 6-Gallon DEF Header Suction Line Connection Broken by Ice PressureB
sb2042 Coolant Overflow Hose
sb3131 Huck-Spin 2 Changeover
Engine
43 bulletinsCX Advocate for turbo oil drain cracking
CX Advocate for turbo oil drain cracking
CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault.
CX Advocate for Legacy M2 Misrated Engines in Emergency Vehicles (SF695)
Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
Important Campaign Information Letter for SF695 Cummins Engine Emergency Vehicle Calibration
My Communications for SSI DEF Header Warranty Policy Extension for B6 7 Engines Model Years 2017-2021
Extended Warranty Policy for certain Cummins B6.7 engines with SSI DEF headers for EPA and CARB Emissions Reporting
Service Solution for DD8 Engine Harness Chafing Air Compressor Suction Line.
Daimler Trucks North America LLC (DTNA), on behalf of its Freightliner Trucks Division, has decided that a defect that...
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relates to motor vehicle safety exists on specific model year 2014 through 2019 Freightliner Business Class M2 vehicles manufactured October 17, 2013, through September 25, 2018 and equipped with a Mahle-Bahr radiator. Contact your DTNA dealer to schedule a service date to perform the recall. Refer to the included communication from DTNA for additional information.
Freightliner Service Bulletin for Insulated Automatic Transmission Cover Plate.
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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.
Vibration Damper Replacement.
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DD5 Engines built from 4/04/2017 through 3/30/2018.
Detroit Technical Service Letter for DD13 Cylinder Head and Cylinder Head Gasket Change.
Detroit Emission Recall for Certain Detroit DD5 quick launch engines that are registered in the state of California will...
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require reprogramming to a minimum of the MCM and ACM software versions.
Service Solution for M2 Rear Suspension Knock.
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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.
Email from DDC Service Engineering regarding a fuel pump replacement on a population of 18 MY2019-2021 Freightliner M2...
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vehicles.
Warranty Information Letter for Detroit Resources: Exploded View DD Platform and DT12 Posters.
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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.
Revised Technical Service Letter for Fault Code SPN 2629 FMI 10 on GHG21 936.917 DD8 Dual Stage Turbo with MCM Software...
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Version 14.
Technical Service Letter for GHG17 1-Box Inlet and Outlet Exhaust Clamps.
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There is a short supply of exhaust clamps, part number DDE A6809950502, used as inlet and outlet exhaust clamps on GHG17 heavy duty engines (DD13, DD15 and DD16) with a 1-Box aftertreatment configuration. Exhaust clamp part number TCX T130158342AC2 may be used as a substitute for DDE A6809950502, but be aware of the different torque specs between the two parts.
Revised Customer Advisory Letter for Hendrickson Primaax EX 69,000 lb Tri-Axle Rear Air Suspension Height-Control Valve Relocation.
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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.
Technical Service Letter for Fault Code SPN 2629 FMI 10 on GHG21 936.917 DD8 Dual Stage Turbo with MCM Software Version...
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14
Tech Talk discussion on M2 Firetruck surging on high idle.
Detroit Diesel Special Publication informing about Heavy Duty Friction Style Belt Tensioner Kit.
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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.
Tech Talk discussion on M2 firetruck surging on high idle.
Revised Customer Advisory Letter for Fan Hub Fastener Inspection in Business Class M2 Vehicles with DD5 Engines.
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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.
Customer Advisory Letter for Fan Hub Fastener Inspection in Business Class M2 Vehicles with DD5 Engines.
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DTNA has determined that some GHG17 Detroit DD5 engines will need to have the fan hub bolts inspected for correct torque.
Customer Advisory Letter for Hendrickson Primaax EX 69,000 lb Tri-Axle Rear Air Suspension Height-Control Valve Relocation.
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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.
Training Solutions for Fuel Leak Found at High Pressure Fuel Pump Weep Hole for Heavy Duty DD Engines.
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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.
Warranty Information Letter for Warranty Long Block Program Change.
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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.
Service Information Bulletin for Cylinder Block Porosity Repair for DD5 and DD8 egnines.
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Use this procedure to repair oil leaks caused by cylinder block porosity. The low oil pressure, cast areas of the cylinder block can be repaired using this method. J-B Weld is the recommended two-part epoxy for this repair.
Important Campaign Information announcing that a revised bulletin for SF588 Medium Duty DD8 Engine Updates is available...
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on DTNAConnect.
Field Service Campaign for Medium Duty DD8 Engine Updates.
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Certain vehicles with Detroit Diesel MDEG DD8 engines need updates to the air compressor suction line, powertrain control module, oil fill cap, 10-pin connector wiring harness, and fuel filter/engine labels.
Camshaft Position (CMP) sensor terminal fretting due to vibration for DD5 and DD8 engines.
Service Systems Development provided document to service locations on price list reflects current charges to engine...
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horsepower ratings for HDEP and MDEG engine platforms.
Document sent out by Service Systems Development to fix issue related to DD13 engines built between June 5 and July 22,...
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2019 starting with ESN 471928S0697276,have some incorrect values set which can cause the fan to lock on at all times.
Service Information Bulletin to updated the Fuel Injector Harness sections and relocated to Engine Electrical section.
Service Bulletin to testing of EGR Cooler Water Manifold Assembly in DD13 engines.
HDEP GHG17 engines are not equipped with turbo wastegates.
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Steps in this troubleshooting involving wastegates were removed.
This service kit includes all necessary parts to replace the high pressure fuel rail feed lines, mounting bracket,...
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P-clips and mounting hardware in the event one of these parts are loosened, removed or missing from the engine.
Engine Low Coolant Sensor
Service Information Bulletin- Oil Present at the Turbocharger Compressor Housing
sb54298 GHG17 Heavy Duty Engine Platform Vehicle Dash Oil Pressure GaugeB
Electrical
41 bulletinsService Solution for Legacy M2 Bulkhead Module (BHM) Replacement and DiagnosticLink Issues
Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and Diagnosticlink Issue
CX Advocate for repairing seat occupancy sensor (TSB 91-016-FTL)
Technical Service Bulletin for Repairing Seat Occupancy Sensor for ISRI, SEARS and National Truck Seats
Parts Bulletin for Powertrain Power Distribution Module (PTPDM) Kit Replacement
Revised Emissions Recall: Cummins DEF Sensor Shortage.
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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.
Emissions Recall: Cummins DEF Sensor Shortage
Revised Freightliner Service Bulletin for Replacing an Auto Baud Rate Detecting Bulkhead Module with a Fixed Baud Rate BHM.
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Description of Revisions: This bulletin replaces the version dated 02/01/2016. Information about auto baud rate connections has been included.
SS 1032728 Bulkhead Module Fault Codes 524280 thru 524286 with FMI 7 Clarification
Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...
Service Solution for M2,108SD, 114SD Coolant Level Sensor P/N 06-93316-002.
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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.
Updated Service Bulletin for upgrading BHM software for switch expansion module fault SPN 698 FMI 7.
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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.
Warranty Policy Letter for battery tags.
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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.
Freightliner Service Bulletin for Programming Chassis Electronic Control Units (ECUs) With DiagnosticLink.
Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines.
Service Solution for M2,108SD, 114SD Coolant Level Sensor P/N 06-93316-002.
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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.
Updated Freightliner Service Bulletin for Powernet Troubleshooting Guide - Batteries, Path, Alternator, and Starter.
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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.
Revised Technical Service Letter for Detroit DT12 TCM GHG17 Only; Bootloader Update.
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On Detroit DT12 equipped vehicles, it may be necessary to complete an additional step in the programming process when updating the TCM software.
Random shutdown due to battery cable arching
Service Bulletin for Guidelines for Repairing or Replacing an Electrical Harness.
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Use the guidelines in this bulletin to determine if a damaged electrical harness should be repaired or replaced.
Service Bulletin on guidelines for repairing or replacing an electrical harness.
Warranty Information Letter announcing Detroit NOx Sensor Circuit Improvements for GHG17 After Treatment Systems
Service Bulletin for upgrading BHM software for switch expansion module fault SPN 698 FMI 7.
Service Bulletin about the powertrain PDM and Main PDM bracket being modified to reduce stress and vibration to the...
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Powertrain Power Distribution Module (PTPDM).
Service Bulletin describing changes made to the Powernet Distribution Box (PNDB) for better fuse retention.
Service bulletin describing that the DiagnoticLink screen images for Chassis ECU programming have ben updated.
Service Bulletin to provide instructions to replace Ignition Control System.The ICU3 is no longer installed in...
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production, and has been superseded by the ICU3S. When replacing an ICU3, the ICU3S must be installed in its place.
Service Information Bulletin for Communication Loss with a Common Powertrain Controller (CPC) Module (CPC Heartbeat...
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Message is no Longer Arriving)
Forward Chassis Wiring Harness
DiagnosticLink support programming of both chassis and powertrain ECUs
SS 1034220 SSI Ultrasonic Fuel Level Sensor Information
sb54308 Chassis ECU Programming
Technical Bulletin fp54076 Commodity Harness Ordering
Service Bulletin- Chassis ECU Programming
SS1033890 DD5 Coolant Sensor Fault 111/1
0501-18 Aftertreatment Control Module (ACM)
0501-18 Aftertreatment Control Module (ACM)
0311-18 Installation of the Main Shaft Speed Sensor
sb54202 Rerouting the DDEC IV Relative-Humidity-Sensor Harness
sb15020 Alternator Remote Sense WiringB
54-275 - Chassis-Mounted Trailer PDM, Battery Power Cable Terminal Corrosion
Body & Paint
26 bulletinsRevised Field Service Campaign for Beverage Body Frame Rail 50 KSI
Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI
Service Solution for M2 mirror wind noise
Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI.
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REVISION: 3 new SRTs and repair procedures have been created to address specific issues that arise during the repair.
Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI.
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REVISION: 3 new SRTs and repair procedures have been created to address specific issues that arise during the repair.
Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI.
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REVISION: If you find modifications to the chassis, please submit a WSC Inquiry before beginning any additional work.
Field Service Campaign for Beverage Body Frame Rail 50 KSI
Service Solution SS 1032998 M2 mirror wind noise
Warranty Information Letter for Body Builder/Truck Equipment Manufacturer Demonstration Program.
Customer Advisory Letter for Freightliner M2 Forward-Frame Extension Hood Mount Bracket Gusset Installation.
Tech Talk discussion on M2 door lock/unlock function inoperative.
Tech Talk Discussion for M2 mirror shake.
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Vehicle has excessive mirror shake going down the road.
Service Bulletin for Front Lighting Ground Splice Pack Failure.
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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.
Warranty Policy Change for Delivery-Related Changes: Electronic Proof of Delivery and Loose Component Claim Filing
Customer Service Announcement Letter Revision for Dealers/Distributors Accessing DDEC Backdoor Passwords
Warranty Information Letter - Expanded guidelines for paint-related claims sent out to Freightliner, Western star,...
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Thomas Built Bus, Export and Direct warranty customers
Service Bulletin M2 Heated Windshield Modification
Service Bulletin 9815- Paint Finish Standards
Service Bulletin 9818- Repainting Plastic Bumper Components
Freightliner M2 Roof Repair
A new design for the M2 grille went into prduction on February 5, 2018.
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The hood design has also changed slightly to accommodate a different grille fastening strategy. The old grille and hood part part numbers will no longer be produced, and will supersede to the new design with new part numbers.
The right-hand cab panel on New Cascadia can come into contact with the right-hand chassis-side fairing when making a left turn.
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This contact can result in an audible popping noise, paint-damage to the rocker panel and damage to the back-side of the chassis-side fairing.
sb9815 Paint Finish Standards
54-280 - Video Available for Servicing APEX 150 Sealed 16-Pin Connectors
sb98020 Axalta Paint Finish CareB
sb9815 Paint Finish StandardsB
Fuel System
22 bulletinsWarranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates
Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown.
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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.
Revised Freightliner Service Bulletin for netized Fill Neck for Six-Gallon DEF Tanks.
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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.
Customer Service Announcement for Release of DiagnosticLink 8.12 Service Pack 2.
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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.
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.
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Potential travel reimbursement applies to DTNA truck dealers and Detroit Diesel distributors. Thomas Built Buses will be addressed separately.
Technical Service Letter for EPA10, GHG14, GHG17 Diesel Particulate Filter (DPF) Compatibility.
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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.
Customer Service Announcement informing that Service Pack (SP) 1 for DiagnosticLink 8.12 Standard and Professional is...
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available to download from the Detroit Diesel server.
Customer Service Announcement saying that Service Pack (SP) 3 for DiagnosticLink 8.11 Standard and Professional will be...
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available for download from the Detroit Diesel server.
DDC Emission Recall for GHG17 MDEG Platform DD8 Software Reprogramming For California Inspection and Maintenance.
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Adding clarification to the Corrective Procedure.
DDC Emission Recall for GHG17 MDEG Platform DD8 Software Reprogramming For California Inspection and Maintenance
Service Bulletin for Equiflo Fuel System Breather Tube Inspection
Service Information Bulletin for Symptom Diagnostics - Fluid in the Aftertreatment - Diesel Fuel Contamination.
Service Information Bulletin for DD5 Aftertreatment Systems - DPF End Cap
Fuel Level Sending Unit Retrofit
Fuel Level Sending Unit Retrofit
Service Information Bulletin- Exhaust Gas Recirculation Crossover Pipe
0504-18 Fuel System - Fuel Injectors
0504-18 Fuel System - Fuel Injectors
0404-18 GHG17 DD8 - Aftertreatment Systems - Diesel Particulate Filter End Cap
0404-18 GHG17 DD8 - Aftertreatment Systems - Diesel Particulate Filter End Cap
sb54296 Fuel Level Sending Unit RetrofitB
sb54148 Radio and Integrated Thin-Film Antenna Troubleshooting, and Field Service UpdatesB
Suspension
18 bulletinsService Solution for Thread Spring Pin Suspension Alignment & Installation
Customer Advisory Letter for M2 Front Steer Arm Drag Link Ball Joint Connection Inspection
Freightliner Field Service Campaign for Freightliner M2 DD5 Fan Hub Fasteners.
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Fan hub bolts may be insufficiently torqued which could lead to a failure and excessive truck down time.
Customer Advisory Letter for 80KSI Frame Reinforcement Installation on specific Business Class M2 equipped with 80KSI...
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frame rails and an Airliner 20,000 lb or 21,000 lb rear suspension.
Revised Freightliner Service Bulletin for Axle Flange Gasket Replaced with O-Ring.
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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.
Freightliner Service Bulletin for Axle Flange Gasket Replaced with O-Ring.
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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.
Freightliner Service Bulletin for Non-Airliner Rear Suspension Crossmember Fastener Change.
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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.
Freightliner Service Bulletin for Front Axle Spacer Replacement.
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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.
Field Service Campaign revision for Detroit Axle M2 Chassis Stabilizer Bracket Inspection.
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Additional information added to Parts Information.
Field Service Campaign revision for Detroit Axle M2 Chassis Stabilizer Bracket Inspection.
Service Campaign to inspect and fix stabilizer brackets for damage.
Service Bulletin for Hendrickson HaulMaax Rear Suspension Transverse Torque Rod Tower Bracket Replacement
Tool Letter for New Final Drive Driver Controlled Differential Lock Spring Compressor.
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These new axles require a new tool to compress the Driver Controlled Differential Lock (DCDL) spring. To remove and install the DCDL spring, the tool DSN0FDA17001 is needed.
Service Bulletin to fix vehicles which may have an incorrect transverse torque rod tower bracket installed on the rear drive axles at the factory.
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This can result in cracking at the transverse rod tower where it is welded to the axle housing, premature wearing of the transverse torque rod tapered pin and bushings, and damage to the transverse torque rod frame bracket.
SS 1034171 Airliner Rear Suspension Chassis Lean Troubleshooting
With the start of production on February 12, 2018, the fasteners used to assemble Airliner rear suspension crossmembers changed.
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The forward-suspension crossmember will assembled with 5/8-18 fasteners and the rear-suspension (bogie) crossmember will be assembled with 3/4-16 fasteners.
33-28 - Bearing Spacer Replacement, ConMet PreSet Steer Hubs
35-30 - Bearing Spacer Replacement, ConMet PreSet Drive Hubs
Software & Calibration
17 bulletinsCX Advocate for MDEG Updates
CX Advocate for MDEG Updates
Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management.
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Description of Revisions: The bulletin replaces the version dated 05/14/2024. Creation date has been updated.
CX Advocate for MDEG Updates
CX Advocate for NOx conversion low faults.
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Update to CXA 6_24_NOx submission.
Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management.
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Description of Revisions: The bulletin replaces the version dated 05/14/2024. Creation date has been updated.
Revised Field Service Campaign for Common Telematics Platform Software Update
Field Service Campaign for Common Telematics Platform Software Update
Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times (SRTs) shown.
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The updated times will be applied to repair orders opened on or after April 5, 2021.
Updated Freightliner Service Bulletin for Espar Service Information.
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This bulletin replaces the version dated January 1, 2015. New Cascadia has been added to the model list.
Starting on November 23, 2020, DiagnosticLink 8.13 (Build 4527) was made available.
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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.
OEM and distributor announcement for DiagnosticLink 8.12 (Build 4527) was made available.
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All DTNA Service shops & OEM locations are required to maintain the latest version of software on each of their stations.
Customer Service Announcement for Release of DiagnosticLink 8.12.
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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.
Important Campaign Information letter announcing a revision to D19M4 exists and can be found on DTNAConnect and updates...
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the section on Warranty Information.
Warranty Information Letter updated to communicate warranty system updates.
Updates to troubleshooting guides in Diagnostic Link with newest version
SF552 Medium Duty DD5 AC Dryer Hardware Updates
Brakes
17 bulletinsRear Brake Calipers and Anchor Plates.
Freightliner Service Bulletin for Access to Front Brake Zerk Fittings.
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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.
Tech Talk discussion on M2 dash says"park brake not set".
Service Solution for M2 ABS Wiring Harness Rubs On Forward Cab Mount.
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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.
Customer Advisory Letter concerning certain Meritor disc brake caliper mounting bolts.
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An inspection on certain vehicles will be performed.
Recall Bulletin- Brake Caliper Mounting Bolts
30mm Air Disc Brake Caliper Bolt Torque Adapter DSNCHA018005
FL794 Brake Caliper Mounting Bolts Dealer Bulletin
Brake Caliper Mounting Bolts
FL783 Dealer Bulletin Brake Caliper Mounting Bolts
FL794 - Revised Bulletin Brake Caliper Mounting Bolts
FL794 Recall Campaign- Brake Caliper Mounting Bolts
Recall FL783- Brake Caliper Mounting Bolts
Service Solution 1033889- Hydromax Hydraulic Brake Booster Pump Function Logic
FL772-Dealer bulletin for Brake Caliper Mounting Bolts recall
sb60157 Roof Noise, M2 and 108SD 114SD Day CabsB
sb4256 Enabling M2 Exhaust Brake Lights
Transmission
12 bulletinsCX Advocate communication for clutch bolts
Customer Advisory Letter on Missing Transmission Cooler Line Bracket and Clamp
Updated Freightliner Service Bulletin for Rerouting Wiring Harness to Reduce Chafing.
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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.
Revised Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing.
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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.
Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing.
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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.
Freightliner Service Bulletin for Rerouting Wiring Harness to Reduce Chafing.
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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.
Service Bulletin for Lengthening the Backup Light Harness.
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Though the backup light harness is long enough to connect to the backup light switch, it may be short enough that the wire seals in the connector can be stressed. Moisture entering through the seals can cause corrosion, resulting in a bad connection and/or failure of the switch. As a result, backup lights and, if equipped, the backup alarm, may not function when the vehicle is shifted into reverse.
Service Solution for OBD16 M2, C2, 108SD & 114SD Allison transmission not shifting due to harness chafing.
Warranty Policy Letter to communicate remarketing handling cap for Detroit DT12 Transmission.
Service Bulletin- Allison Transmission Cooler Quick-Connect Fittings
26-50 - M2 Shift Cable Noise, Allison Transmissions
sb2650 M2 Shift Cable Noise, Allison Transmissions
Lighting
7 bulletinsTechnical Service Bulletin for Grote OEM and Alliance Aftermarket Headlamp Replacement
Customer Service Announcement for DiagnosticLink Software Update Reminder.
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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.
Warranty Policy Letter for Chassis Progressive Damage Policy Change.
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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).
Warranty Policy Letter for Handling Change: Over the Counter Aftermarket Parts Replacement Program.
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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.
Customer Service Announcement for a policy change regarding Detroit Service Information Bulletins (SIBs) will now have a...
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60-day expiration, starting on the release day of the bulletin. The intent of a SIB is to notify the service network of a major change to one or more service procedures. Do not save SIBs nor reference them for repairs, as they are uncontrolled and never updated.
Service Bulletin for M2 Surge Tank Shunt Line Clamp Replacement.
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On some vehicles, the shunt line coolant hose is disconnecting from the surge tank and replacing the constant tension clamp with a Breeze brand clamp resolves the issue.
sb2046 ABA Hose Clamp Torque Values
Steering
6 bulletinsTech Talk discussion about power steering fluid.
Steering Intermediate Shaft Replacement
Dealer Bulletin Freightliner Steering Shafts
Dealer Bulletin Freightliner Steering Shafts
fp46907 Steering Intermediate Shaft Replacement
sb4641 Adjusting Tilt Lock Force on TRW Steering ColumnsB
HVAC & Climate
5 bulletinsCustomer Advisory Letter for Proactive Air Compressor, Resonator, and Suction Line Replacement
Updated Freightliner Service Bulletin for Heater Hose Reduced Clearance May Cause Early Horn Failures
Freightliner Service Bulletin for Heater Hose Clearance.
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Some Business Class M2 106 vehicles built from January 2017 through June 2021 may have a heater hose installed too close to the electric horn.
Service Bulletin for A/C system receiver-drier replacement guidelines.
sb4725 DAVCO Preheater Fault Code SA 33 SPN 6897 FMI 6B
Infotainment
3 bulletinsSS 1032974 High Oil Pressure on 2017 DTNA Vehicles Instrument Cluster Display
Service Bulletin revision to an earlier submission of SB54-308 for October 2019 (19MC2968).
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The prior submission added new screenshots. This revision adds clarification for vehicle programming.
DTNA Special Tools Group has approved the use of Haweka Axis4000 aftermarket alignment system for use on DTNA products at DTNA service locations.
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The Axis4000 system uses the reference points required by DTNA for precise, accurate, and repeatable measurements. Axis4000 is a sophisticated, user-friendly system that utilizes computer based camera-radio technology and references the center line of the frame for measuring and providing alignment results to DTNA specifications.
Hybrid & EV
1 bulletinThe modified parked regeneration strategy has been standard on GHG17 units since the start of GHG17 production and was...
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added to EPA10 and GHG14 units with a software update. The modified regeneration utilizes an improved strategy to clean the DOC inlet face and reduce downtime due to DOC face plugging.
Tires & Wheels
1 bulletinCustomer / Dealer Advisory: M2 All-Wheel Drive Passenger Side Step Modification