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Service bulletins for the 2021 Freightliner 114SD

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.

153 on file from NHTSA, as of 2026-10-19.

Warranty extensions
WI24-0192024-12-04. ENGINE. Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates

A warranty extension may pay for a repair after the basic warranty has ended. Read the document for which vehicles and which repair it covers.

By type

By component

Bulletins, newest first
SF728-OWN LTR2026-05-02. Service campaign. UNKNOWN OR OTHER. Field Service campaign for 114SD Airliner 69K Crossmembers
SF728-DLR LTR2026-05-02. Service campaign. UNKNOWN OR OTHER. Field Service campaign for 114SD Airliner 69K Crossmembers
SF728-Bulletin2026-05-02. Service campaign. UNKNOWN OR OTHER. Field Service campaign for 114SD Airliner 69K Crossmembers
SS 3124-FTL2026-05-02. Other. ELECTRICAL SYSTEM. Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and DiagnosticLink Issues
FleetCom 1_Solenoid2026-05-02. Other. ELECTRICAL SYSTEM. Fleet Communications for solenoid issues
CXA 03_26_ABS LA Fault2026-04-02. Other. SERVICE BRAKES. CX Advocate for 1810/02 ABS longitudinal acceleration fault (TSB-54-104-WST,TSB-54-379-FTL)
FleetCom_ESC Warning Lamp2026-03-04. Other. SERVICE BRAKES. Fleet Communications for TSB-54-379-FTL & TSB-54-104-WST ESC warning lamp and ECU replacement
TSB-54-379-FTL2026-02-03. Service bulletin. SERVICE BRAKES. Revised Technical Service Bulletin for ESC Warning Lamp and ECU Replacement
CXA_01_26_Trans Support2026-02-03. Other. POWER TRAIN. CX Advocate for Aftermarket Transmission Support
TSB-54-379-FTL2026-02-03. Service bulletin. SERVICE BRAKES. Technical Service Bulletin for ESC Warning Lamp and ECU Replacement
FleetCom_Oil Plug Loc2026-01-08. Other. POWER TRAIN. Fleet Communications for NFD Lower Oil Plug Location - SP Axles
FleetCom_Heater Core2026-01-08. Other. ENGINE. Fleet Communications for Heater Core Plugging
CXA 10_25_Air Dryer Purge2025-11-06. Other. SERVICE BRAKES. CX Advocate for Experiencing Excessive Purging from Air Dryer
CXA_10_25_TufTrac M122025-11-05. Other. SUSPENSION. CX Advocate for TufTrac M12 Bolts (TSB-32-057-FTL)
CXA_10_25_Conmet Oil Pan2025-11-05. Other. ENGINE. CX Advocate for ConMet Oil Pan Insert Additional Issues
MYCOM_09022025-12025-10-03. Other. FUEL/PROPULSION SYSTEM. My Communications for UFI 0-Ring Announcement
PB33-004-FTL2025-07-08. Service bulletin. STEERING. Parts Bulletin for Tie Rod Assembly Part Breakdown
SS3124-FTL2025-06-27. Other. ELECTRICAL SYSTEM. Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and Diagnosticlink Issue
CXA 3_25_SAS01T to SAS03T2025-04-02. Other. STEERING. CX Advocate for SAS01T to SAS03T replacement (TSB54-373-FTL, TSB54-097-WST)
CXA 3_25_NOx2025-04-02. Other. ENGINE. CX Advocate for NOx conversion low faults
CXA 2_25_Turbo Oil Drain2025-03-04. Other. ENGINE. CX Advocate for turbo oil drain cracking
CXA 2_25_NOx2025-03-04. Other. ENGINE. CX Advocate for NOx conversion low faults
TSB54-373-FTL2025-03-04. Service bulletin. STEERING. Technical Service Bulletin for SAS01T to SAS03T Replacement Information
CXA 1_16_Turbo Oil Drain2025-01-29. Other. ENGINE. CX Advocate for turbo oil drain cracking
CXA 1_16_Seat Occupancy2025-01-29. Other. SEATS. CX Advocate for repairing seat occupancy sensor (TSB 91-016-FTL)

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.