Vehicle recall 15V521000 · August 17, 2015
2013-2015 Mack Pinnacle (cxu)
In the affected vehicles, the brake chambers may have been incorrectly mounted resulting in internal contamination of the air brake calipers.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Mack Trucks, Inc. (Mack) is recalling certain model year 2013-2015 Pinnacle (CXU) trucks manufactured from October 3, 2012, through February 18, 2014 and equipped with Meritor air disc brakes. In the affected vehicles, the brake chambers may have been incorrectly mounted resulting in internal contamination of the air brake calipers.
- Consequence
- Contamination of the calipers may cause a loss of brakes on one wheel, lengthening the distance required to stop the vehicle, increasing the risk of a crash.
- Remedy
- Mack will notify owners, and dealers will inspect the disc brake caliper and brake chamber to determine if the washers are located in the correct position. If the washers are in the correct position, no further action is required. If the washers are not located in the correct position, replacement of the disc brake caliper and brake chamber will be performed and the addition of two washers per brake assembly will be installed, free of charge. The recall began on September 30, 2015. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0392.
- Notes
- Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Recall details
- NHTSA campaign
- 15V521000
- Reported to NHTSA
- August 17, 2015
- Filed by
- Mack Trucks, Inc.
- Manufacturer campaign
- SC0392
- Owner notification
- September 30, 2015
- Vehicles potentially affected
- 79
- Initiated by
- the manufacturer
- Components
- Service brakes, air › Disc › Chamber
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Mack Pinnacle (cxu) (2013-2015): 2015, 2014, 2013
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.