Mack Anthem AN (4), Pioneer PR (4) (2025-2026): Exterior lighting
Recall 25V803000 · Nov 20, 2025 · Mack Trucks, Inc.
247
vehicles affected
247
vehicles affected
Facts
- Recall number
- 25V803000
- Date
- Nov 20, 2025
- Maker
- Mack Trucks, Inc.
- Units affected
- 247
- Kind
- Vehicles
- Component
- Exterior lighting > Lighting control module > Software
- Model years
- 2025-2026
- Started by
- The maker
- Hazard
- Crash risk
What is wrong
Mack Trucks, Inc. (Mack) is recalling certain 2026 Anthem (4) and 2025-2026 Pioneer vehicles. The automatic high beams (AHB) may not switch to low beam headlights as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
What can happen
High beam headlights that do not switch to low beam as intended can reduce visibility for oncoming traffic, increasing the risk of a crash.
The fix
Recall repairs are free of charge.
As an interim action, Mack will update the vehicle software through an over-the-air (OTA) update to disable the AHB feature, free of charge. Owner letters were mailed May 29, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0488.
Vehicles covered
2 models, 3 model years in all
| Make | Model | Model years |
|---|---|---|
| Mack | Anthem AN (4) | 2026 |
| Mack | Pioneer PR (4) | 2025-2026 |
Related pages
Questions and answers
Which vehicles are in recall 25V803000?
2 models: Mack Anthem AN (4) (2026), Mack Pioneer PR (4) (2025-2026), about 247 vehicles in all.
What is the fix for recall 25V803000?
As an interim action, Mack will update the vehicle software through an over-the-air (OTA) update to disable the AHB feature, free of charge. Owner letters were mailed May 29, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0488.
What can happen?
High beam headlights that do not switch to low beam as intended can reduce visibility for oncoming traffic, 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.