WenmarOpen by Wenmar Pro

Service bulletins for the 2020 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.

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

By type

By component

Only bulletins with component: Wheels are shown. Show all

Bulletins, newest first
TSB35-034-FTL2025-08-02. Service bulletin. WHEELS. Revised Technical Service Bulletin for Hub Oil Level in Final Drive (NFD) Top Performance Axles on Decked Vehicles
SB54-3412021-03-25. Service bulletin. WHEELS; ELECTRICAL SYSTEM. Updated Freightliner Service Bulletin for Tire Pressure Monitoring System (TPMS) Water Intrusion. This bulletin replaces the bulletin dated 02/08/2021. The location for the date stamp has changed. A note has been added to Fig. 2.
Techtalk73432020-12-31. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); WHEELS. Tech Talk discussion on 2020 P4 COMPLAINT IS THAT TRACTION CONTROL LIGHT COMES ON.
CALFTL-OILHUB2020-09-01. Service bulletin. STEERING; WHEELS. Customer Advisory Letter for Visual Inspection For Oil Presence In Hub. Visual Inspection is necessary for the condition of the oil level in the steer axle hubs.
CALFTLWS000-012020-04-09. Service bulletin. TIRES; WHEELS. Customer Advisory Letter for GWR Label Correction. Freightliner 108SD/114SD, Coronado, New Cascadia, and Business Class M2 vehicles and Western Star 4700 and 4900 vehicles equipped with a certain tire rating have the wrong Component GWR label. DTNA is requesting the current Component GWR label be replaced with the correct label.
19TL-92019-08-08. Service bulletin. WHEELS; SUSPENSION; EQUIPMENT. DTNA Special Tools Group has approved the use of Haweka Axis4000 aftermarket alignment system for use on DTNA products at DTNA service locations. 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.

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