Vehicle recall 12V037000 · February 1, 2012
2012-2013 Mack Granite (gu)
In extremely cold conditions, these bendix relay valves may potentially develop internal leakage.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Mack is recalling certain model year 2012-2013 gu, manufactured from December 2, 2010, through January 18, 2012, and equipped with bendix atr-6 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.
- Consequence
- Inadvertent brake application can cause the brakes to overheat and lead to a fire. Inadvertent brake application can cause the wheels to lock-up leading the driver to lose control of the vehicle, increasing the risk of a crash.
- Remedy
- Mack will notify owners, and provide a temporary repair until bendix develops a permanent remedy. This service will be performed free of charge. Owners may contact mack trucks at 1-800-866-1177.
- Notes
- Mack trucks' recall number is SC0363.OWNERS may also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to http://www.safercar.gov.
Recall details
- NHTSA campaign
- 12V037000
- Reported to NHTSA
- February 1, 2012
- Filed by
- MACK TRUCKS, INC
- Manufacturer campaign
- SC0363
- Owner notification
- April 23, 2012
- Vehicles potentially affected
- 2
- Initiated by
- the manufacturer
- Components
- Service brakes, air › Supply › Check valve
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Mack Granite (gu) (2012-2013): 2013, 2012
Has your Mack been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Mack dealer can also check your VIN. Recall repairs are free.