2014 Mack Pinnacle (cxu) Recall: In the affected vehicles, the protection system, designed to monitor…
NHTSA campaign 13V641000 · Engine and Engine Cooling · filed Dec 20, 2013 · verified Jul 30, 2026
The defect
Mack Trucks, Inc. (Mack) is recalling certain model year 2014 CXU tractor trailers manufactured June 21, 2013, through October 4, 2013 and equipped with an automatic over-speed protection system. In the affected vehicles, the protection system, designed to monitor diesel engine speed and shutdown the engine should it rev excessively, may be wired incorrectly and may not operate as designed.
The risk
Without a system to control the engine speed, if airborne hydrocarbons (combustible vapors) enter through the air intake, excessive engine speed may result in a catastrophic engine failure and/or engine fire.
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 correct the system wiring, free of charge. The recall began on February 20, 2014. Owners may contact Mack Trucks at 1-336-393-2000. Mack's number for this recall is SC0374.
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
| Make | Model | Model years |
|---|---|---|
| Mack | Pinnacle (cxu) | 2014 |
Related recalls
More Mack Pinnacle (cxu) recalls
- 2021–2022 Mack Anthem (an) and 5 other models — Hubcap compression spring can cause the hubcap to separate
- 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 13V641000 (manufacturer number SC0374). Data last verified Jul 30, 2026.