2012–2015 Mack Pinnacle (cxu) Recall: Affected vehicles have a switch to release the fifth wheel latch that may…
NHTSA campaign 15V139000 · Trailer Hitches · filed Mar 11, 2015 · verified Jul 30, 2026
The defect
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.
The risk
An inadvertent decoupling of the trailer from the tractor may increase the risk of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
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.
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.
Affected vehicles
Related recalls
More Mack Pinnacle (cxu) recalls
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- 2018–2022 Mack Anthem (an) and 5 other models — Vehicles may not stay in their lane at certain speeds
- 2015 Mack Pinnacle (cxu) — Axles missed the heat treating operation during…
- 2020 Mack Anthem (an) and 3 other models — Conspicuity reflectors at the back of the cab may be…
- 2018–2019 Mack Anthem (an) and 2 other models — Service Brakes, Air
Other campaigns involving Mack vehicles
Source: NHTSA recall database, campaign 15V139000 (manufacturer number SC0390). Data last verified Jul 30, 2026.