Western star/fmvss 121
Defect Summary
Vehicle description: heavy duty 6x4 trucks equipped with either hendrickson rt/rs series suspensions or chalmers 800 series suspensions, with a wheel base greater than 250 inches, and western star's air '96' air brake system without anti-lock brakes. these vehicles do not meet the air brake release time required by fmvss no. 121, "air brake systems."
Safety Consequence
Air brake release time may be longer than anticipated by the operator increasing the risk of a vehicle crash.
Corrective Action
Dealers will install an in-line quick release valve in each of the drop lines to the rear most brake chambers.
Similar Recalls
Other recalls from Western Star Trucks, Inc. or involving Service Brakes, Air.
FAQ: Recall 97V151000
Your rights, the repair process, and what each field on this page means.
What is recall 97V151000?
NHTSA recall 97V151000 was issued by Western Star Trucks, Inc. on September 14, 1997. It addresses: Western star/fmvss 121. The recall affects approximately 40 vehicles, with the defect involving the Service Brakes, Air component.
How do I get this recall repaired?
Contact any authorized Western Star Trucks, Inc. dealer and reference NHTSA recall ID 97V151000 or the manufacturer campaign number NR (Not Reported). Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.