Mack recall: Exterior lighting
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 could 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
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. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning November 27, 2025.
Vehicles covered
- Mack Anthem An (4) 2026
- Mack Pioneer Pr (4) 2025–2026
Facts
- NHTSA recall number
- 25V803000
- Type
- Vehicle
- Filed by
- Mack Trucks, Inc.
- Reported to NHTSA
- Nov 20, 2025
- Owners notified
- May 29, 2026
- Vehicles or items affected
- 247
- Started by
- The manufacturer
- Built
- Jul 8, 2025 to Jul 11, 2025
- Part
- Exterior lighting › Lighting control module › Software
- Maker's own recall number
- SC0488
- Safety standard
- FMVSS 108
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.