Recall 25V622000: 2025–2026 Mack Pioneer PR (4)
Updated from NHTSA data · How we count
- Report date
- Sep 18, 2025
- Vehicles affected
- 156
- Models
- 1
- Initiated by
- ODI
The problem
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.
The risk
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.
Affected vehicles
Details
- NHTSA campaign
- 25V622000
- Manufacturer campaign
- SC0484
- Manufacturer
- Mack Trucks, Inc.
- Owner letters
- Nov 19, 2025
- Components
- Exterior lighting:lighting control module (Lighting)
Recall repairs are free at authorized dealers. To see if your vehicle is included, enter your VIN at NHTSA.gov or call the manufacturer.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. Methodology