Service brakes/traction relay valve
Defect Summary
Autocar is recalling certain model year 2011-2012 acx heavy-duty class 8 vehicles, manufactured from december 22, 2010, through december 5, 2011, and equipped with bendix atr-6 antilock traction relay valves. in extremely cold conditions, these bendix relay valves may potentially develop internal leakage. internal leakage can lead to air pressure being delivered to affected primary or secondary brake causing continuous brake application.
Safety Consequence
Unexpected continuous brake application can cause the brakes to overheat and lead to a fire. unexpected continuous brake application can cause the driver to lose control of the vehicle, increasing the risk of a crash. also, the brakes may be applied without illuminating the brake lights, failing to give proper warning to other drivers.
Corrective Action
Autocar will notify owners, and dealers will provide a temporary repair until bendix develops a permanent remedy. this service will be performed free of charge. The safety recall began on august 8, 2012. owners may contact autocar at 1-765-489-5499.
Similar Recalls
Other recalls from Autocar, Llc or involving Service Brakes, Air.
FAQ: Recall 12V046000
Your rights, the repair process, and what each field on this page means.
What is recall 12V046000?
NHTSA recall 12V046000 was issued by Autocar, Llc on February 8, 2012. It addresses: Service brakes/traction relay valve. The recall affects approximately 269 vehicles, with the defect involving the Service Brakes, Air component.
How do I get this recall repaired?
Contact any authorized Autocar, Llc dealer and reference NHTSA recall ID 12V046000 or the manufacturer campaign number A-1201. 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.