Service bulletins for the 2021 Freightliner 108SD
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
135 on file from NHTSA, as of 2026-10-19.
By type
By component
| TSB35-042-FTL | 2024-06-05. Service bulletin. POWER TRAIN. Technical Service Bulletin for New Final Drive Over Heat Diagnostic |
|---|---|
| TSB35-039-FTL | 2024-06-05. Service bulletin. POWER TRAIN. Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management |
| SS3144-FTL | 2024-05-07. Service bulletin. ENGINE AND ENGINE COOLING. Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller |
| CumminsB6.7SSI | 2024-05-07. Service bulletin. ENGINE AND ENGINE COOLING. Extended Warranty Policy for certain Cummins B6.7 engines with SSI DEF headers for EPA and CARB Emissions Reporting |
| ICI24-006 | 2024-03-06. Service bulletin. ENGINE AND ENGINE COOLING. Important Campaign Information letter for FL974 - Revised Bulletin & Population |
| FL974 | 2024-03-06. Service bulletin. ENGINE AND ENGINE COOLING. 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. |
| FL974 | 2024-02-06. Service bulletin. ENGINE AND ENGINE COOLING. Emissions Recall: Cummins DEF Sensor Shortage |
| SF672_V4 | 2023-12-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Revised Field Service Campaign for Common Telematics Platform Software Update |
| SF672 | 2023-06-29. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Field Service Campaign for Common Telematics Platform Software Update |
| ICI23-010 | 2023-04-07. Service bulletin. STEERING. Important Campaign Information letter communicating that SF660 Field Service Campaign is Replaced by FL967. |
| SF660A | 2023-02-04. Service bulletin. STEERING. Revised Field Service Campaign for Drag Link Tapered Joint |
| SF660 | 2023-01-06. Service bulletin. STEERING. Field Service Campaign for Drag Link Tapered Joint |
| SB54-295 | 2022-08-02. Service bulletin. ELECTRICAL SYSTEM. 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. |
| SB49-042 | 2022-03-03. Service bulletin. ENGINE AND ENGINE COOLING. Freightliner Service Bulletin for DEF Connector Reinforcement Caps. |
| SF613 | 2021-11-03. Service bulletin. SERVICE BRAKES, HYDRAULIC. 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. |
| SB60-176 | 2021-06-29. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. 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. |
| SS1032974 | 2021-06-09. Service bulletin. UNKNOWN OR OTHER. SS 1032974 High Oil Pressure on 2017 DTNA Vehicles Instrument Cluster Display |
| SS1033180 | 2021-06-09. Service bulletin. UNKNOWN OR OTHER. Service Solution SS 1033180 BHM Fault Code SPN 524251 FMI 7 - Extr... |
| SS1034797-2021 | 2021-05-27. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. 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. |
| CALFTL54-001 | 2021-05-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; POWER TRAIN. Customer Advisory Letter on Powertrain PDM and Main PDM Bracket Modification |
| FAB248 | 2021-05-19. Service bulletin. STRUCTURE; SUSPENSION. Freightliner Action Bulletin FAB248 FRONT FRAME EXTENSION TOW HOOKS 10.30.17 |
| FAB210 | 2021-05-19. Service bulletin. ELECTRICAL SYSTEM. Freightliner Action Bulletin FAB210 USB Charging Ports |
| FAB162 | 2021-05-18. Service bulletin. EQUIPMENT; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. Freightliner Action Bulletin FAB162 Remote Stop Start |
| FAB161 | 2021-05-18. Service bulletin. SUSPENSION. Freightliner Action Bulletin FAB161 Watson and Chalin Suspension |
| FAB160 | 2021-05-18. Service bulletin. STRUCTURE; ENGINE AND ENGINE COOLING. Freightliner Action Bulletin FAB160 Rock Guard |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.