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Service bulletin TSB-54-379-FTL

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11028071
Published by NHTSA2026-02-03
Manufacturer's numberTSB-54-379-FTL
Manufacturer's date2026-01-28
NHTSA componentSERVICE BRAKES

NHTSA's summary

Revised Technical Service Bulletin for ESC Warning Lamp and ECU Replacement

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes

Vehicles listed
FREIGHTLINER 108SD2021, 2022, 2023, 2024, 2025, 2026
FREIGHTLINER 114SD2021, 2022, 2023, 2024, 2025, 2026
FREIGHTLINER BUSINESS CLASS M22021 to 2026
FREIGHTLINER CASCADIA2021, 2022, 2023, 2024, 2025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20264282026-09-09. Brakes
26V5830002026-09-09. ELECTRONIC STABILITY CONTROL (ESC); SERVICE BRAKES, AIR:ANTILOCK
20254802025-09-11. Brakes
25V6010002025-09-11. SERVICE BRAKES, AIR:CRITICAL FASTENERS; SERVICE BRAKES, AIR:DISC:CALIPER
25V2950002025-05-07. SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK
20251542025-03-25. Brakes
20230512023-02-10. Brakes
23V0730002023-02-10. ELECTRONIC STABILITY CONTROL (ESC); SERVICE BRAKES, AIR:ANTILOCK:MODULATOR
20226262022-11-01. Brakes
22V8170002022-11-01. SERVICE BRAKES, AIR:ANTILOCK:MODULATOR; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
WI26-009R2026-09-02. Other. Revised Warranty Information letter for missing chamber caging bolts
CXA_Air Systems2026-07-08. Other. CX Advocate webinar for Cascadia Fifth Gen Air Systems
WI26-0092026-07-06. Other. Warranty Information letter for missing chamber caging bolts
FleetCom 1_TransmitterBST2026-07-06. Other. Fleet Communications for brake signal transmitter
CXA_Intelligent Air Sys2026-07-06. Other. CX Advocate webinar for Cascadia Fifth Gen Intelligent Air Systems
CXA_Brake Systems2026-07-06. Other. CX Advocate webinar for Cascadia Fifth Gen Troubleshooting Braking Systems
CXA_TransmitterBST2026-07-06. Other. CX Advocate webinar for Cascadia Fifth Gen Brake Signal Transmitter
CAL FTL 54-0402026-06-01. Other. Customer Advisory Letter for 883-020 Electronic Trailer Brake Hand Control with Detent in Final Delivery Position
CXA 03_26_ABS LA Fault2026-04-02. Other. CX Advocate for 1810/02 ABS longitudinal acceleration fault (TSB-54-104-WST,TSB-54-379-FTL)
FleetCom_ESC Warning Lamp2026-03-04. Other. Fleet Communications for TSB-54-379-FTL & TSB-54-104-WST ESC warning lamp and ECU replacement