Mack recall: Exterior lighting
What is wrong
Mack Trucks, Inc. (Mack) is recalling certain 2025-2026 Pioneer vehicles. When towing a trailer, the trailer lights may fail to illuminate due to an improperly manufactured body control module.
What could happen
Trailer tail lights and turn signals that do not illuminate as intended can reduce visibility to other drivers, increasing the risk of a crash.
The fix
Dealers will replace the trailer body input/output module, free of charge. Owner letters were mailed November 19, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0484.Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning September 25, 2025.
Vehicles covered
- Mack Pioneer Pr (4) 2025–2026
Facts
- NHTSA recall number
- 25V622000
- Type
- Vehicle
- Filed by
- Mack Trucks, Inc.
- Reported to NHTSA
- Sep 18, 2025
- Owners notified
- Nov 19, 2025
- Vehicles or items affected
- 156
- Started by
- NHTSA investigation
- Built
- –
- Part
- Exterior lighting › Lighting control module
- Maker's own recall number
- SC0484
Other recalls for the same vehicles
- Mack recall: Structure Oct 1, 2026
- Mack recall: Service brakes, electric Sep 28, 2026
- Mack recall: Exterior lighting Aug 6, 2026
- Mack recall: Wheels May 28, 2026
- Mack recall: Service brakes, air Apr 23, 2026
- Mack recall: Exterior lighting Apr 1, 2026
To check one car, enter its 17-character VIN on the official NHTSA page: a recall may cover only some vehicles of a model year.
Recall data: National Highway Traffic Safety Administration (NHTSA). Nebula is not affiliated with or endorsed by NHTSA.