Vehicle recall 15V139000 · March 11, 2015
2012-2015 Mack Pinnacle (cxu)
The affected vehicles have a switch to release the fifth wheel latch that may invertently be pushed and cause the trailer to unintentionally disconnect from the tractor after the…
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 2012-2015 CXU trucks manufactured February 4, 2011, to December 23, 2014, and equipped with an air release fifth wheel latch. The affected vehicles have a switch to release the fifth wheel latch that may invertently be pushed and cause the trailer to unintentionally disconnect from the tractor after the parking brake has been released.
- Consequence
- An inadvertent decoupling of the trailer from the tractor may increase the risk of a crash.
- Remedy
- Mack will notify owners, and dealers will install a secondary action that operators will need to activate before the fifth wheel will release, free of charge. The recall began on May 6, 2015. Owners may contact Mack customer service at 1-800-528-6586. Mack's number for this recall is SC0390.
- 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
- 15V139000
- Reported to NHTSA
- March 11, 2015
- Filed by
- Mack Trucks, Inc.
- Manufacturer campaign
- SC0390
- Owner notification
- May 6, 2015
- Vehicles potentially affected
- 262
- Initiated by
- the manufacturer
- Components
- Trailer hitches › Fifth wheel assembly
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) (2012-2015): 2015, 2014, 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.