Mack Pioneer PR (4) (2025-2026): Exterior lighting
Recall 25V622000 · Sep 18, 2025 · Mack Trucks, Inc.
156
vehicles affected
156
vehicles affected
Facts
- Recall number
- 25V622000
- Date
- Sep 18, 2025
- Maker
- Mack Trucks, Inc.
- Units affected
- 156
- Kind
- Vehicles
- Component
- Exterior lighting > Lighting control module
- Model years
- 2025-2026
- Started by
- The safety regulator
- Hazard
- Crash risk
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 can 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
Recall repairs are free of charge.
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.
Vehicles covered
1 model, 2 model years in all
| Make | Model | Model years |
|---|---|---|
| Mack | Pioneer PR (4) | 2025-2026 |
Related pages
Questions and answers
Which vehicles are in recall 25V622000?
1 model: Mack Pioneer PR (4) (2025-2026), about 156 vehicles in all.
What is the fix for recall 25V622000?
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.
What can 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.
A recall means the maker found a safety problem and offers a free fix; it does not mean every unit has the problem. Units affected are as reported by the company. Popular models sell more and so have more recalls and complaints. Official public data; texts are shortened. A dealer can tell whether a single vehicle still needs the repair.