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Service bulletins for the 2021 Freightliner Cascadia

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.

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

By type

By component

Bulletins, newest first
TSB35-039-FTL2024-08-02. Service bulletin. POWER TRAIN. Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management. Description of Revisions: The bulletin replaces the version dated 05/14/2024. Creation date has been updated.
SS3150-FTL2024-08-02. Other. ELECTRICAL SYSTEM. Service Solution for ECP Solenoid Interim Service Replacement Parts
CALFTL13-0022024-08-02. Service bulletin. ENGINE. Customer Advisory Letter for Proactive Air Compressor, Resonator, and Suction Line Replacement
CXA 06_24_Clutch Bolts2024-07-09. Other. POWER TRAIN. CX Advocate communication for clutch bolts
CXA 06_24_NOx2024-07-09. Other. ENGINE. CX Advocate communication for NOx conversion low faults
TSB42-080-FTL2024-07-09. Service bulletin. POWER TRAIN. Revised Technical service Bulletin for ABS Wheel Speed Fault Code Correction for MBSP Equipped Vehicles. Description of Revisions: This bulletin replaces the version dated 05/13/2024. ECU part number, frequently asked questions, addendum and validation of repair has been added.
VSWP Customer Letter2024-06-22. Other. ENGINE. Customer letter regarding variable speed water pump.
SF673 POSTCARD LARGE2024-06-07. Service campaign. ELECTRICAL SYSTEM. Field Service Campaign Owner Reminder Postcard large population
SF673 POSTCARD SMALL2024-06-07. Service campaign. ELECTRICAL SYSTEM. Field Service Campaign Owner Reminder Postcard small population
SF672 POSTCARD LARGE2024-06-07. Service campaign. ELECTRICAL SYSTEM. Field Service Campaign Owner Reminder Postcard large population
SF672 POSTCARD SMALL2024-06-07. Service campaign. ELECTRICAL SYSTEM. Field Service Campaign Owner Reminder Postcard small population
TSB42-080-FTL2024-06-05. Service bulletin. POWER TRAIN. Technical Service Bulletin for ABS Wheel Speed Fault Code Correction for MBSP Equipped Vehicles
TSB35-042-FTL2024-06-05. Service bulletin. POWER TRAIN. Technical Service Bulletin for New Final Drive Over Heat Diagnostic
TSB30-013-FTL2024-06-05. Service bulletin. ENGINE. Technical Service Bulletin for Off-Road/Low Traction Throttle Parameter Update
TSB35-039-FTL2024-06-05. Service bulletin. POWER TRAIN. Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management
D24M3-OWN LTR2024-06-05. Service campaign. ENGINE. Field Service Campaign for Drilled Exhaust Rocker Arm Installation
D24M3-DLR LTR2024-06-05. Service campaign. ENGINE. Field Service Campaign for Drilled Exhaust Rocker Arm Installation
D24M3-Bulletin2024-06-05. Service campaign. ENGINE. Field Service Campaign for Drilled Exhaust Rocker Arm Installation
CALFTL54-0272024-06-05. Service bulletin. ELECTRICAL SYSTEM. Customer Advisory Letter for New Cascadia Vehicles Equipped With D- Climate P4 Ground Cable Anti-Corrosion Sealer Issue
SS3144-FTL2024-05-07. Service bulletin. ENGINE AND ENGINE COOLING. Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller
CALFTL20-0062024-05-07. Service bulletin. ENGINE AND ENGINE COOLING. Customer Advisory Letter for Proactive Oil Thermostat Replacement
TSB30-013-FTL2024-04-02. Service bulletin. ENGINE AND ENGINE COOLING. Technical Service Bulletin for Off-Road/Low Traction Throttle Parameter Update
SS3142-FTL2024-04-02. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Service Solution for J1939 CAN issues for vehicles equipped with Bendix Side Radar with expanded field of view
SF6732024-04-02. Service bulletin. EQUIPMENT. Field Service Campaign for Common Telematics Platform (CTP) Installation and Initialization
TSB30-013-FTL2024-03-06. Service bulletin. ENGINE AND ENGINE COOLING. Technical Service Bulletin for Off-Road/Low Traction Throttle Parameter Update

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