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
Only bulletins with component: Wheels are shown. Show all
| TSB35-034-FTL | 2025-08-02. Service bulletin. WHEELS. Revised Technical Service Bulletin for Hub Oil Level in Final Drive (NFD) Top Performance Axles on Decked Vehicles |
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| CALFTL31-004 | 2021-06-26. Service bulletin. WHEELS. Customer Advisory Letter for 4-Hook Chain Hanger Replacement. |
| SB54-341 | 2021-03-25. 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. |
| CALFTL-OILHUB | 2020-09-01. 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. |
| CALFTLWS000-01 | 2020-04-09. 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.