Service brakes, air: disc: chamber (Mack)
Vehicle recall 15V-521. NHTSA received Mack Trucks, Inc.’s report on Aug 17, 2015.
Watch and the shortlist are kept with a free account, on every device. Your watch list. NHTSA’s own record is on nhtsa.gov.
The short answer
NHTSA received Mack Trucks, Inc.’s report on Aug 17, 2015. Copied from NHTSA on Oct 19, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
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.
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.
NHTSA, Recalls flat file. Released Oct 19, 2026. Updated daily.
- NHTSA’s part: Service brakes, air: disc: chamber.
What should you do?
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.
NHTSA, Recalls flat file. Released Oct 19, 2026. Updated daily.
- How to reach the firm: 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.
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 79 vehicles potentially involved, across everything this recall names.
Each model year opens its own page: every recall naming it, its owner complaints and its crash ratings.
NHTSA, Recalls flat file. Released Oct 19, 2026. Updated daily.
- Mack Pinnacle (CXU)2015and 2013 and 2014, before the model years listed here
Who is recalling it?
- Made by Mack Trucks, Inc..
NHTSA, Recalls flat file. Released Oct 19, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt. Owners’ complaints are counted on each vehicle’s page.
- Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
-
National Highway Traffic Safety Administration, Recalls flat file (FLAT_RCL_POST_2010).
Released Oct 19, 2026 and checked Oct 19, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 19, 2026.