Recall 25V803000: 2026 Mack Anthem AN (4), 2025–2026 Mack Pioneer PR (4)
Updated from NHTSA data · How we count
- Report date
- Nov 20, 2025
- Vehicles affected
- 247
- Models
- 2
- Initiated by
- Manufacturer
The problem
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."
The risk
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.
Affected vehicles
- 2026 Mack Anthem AN (4)
- 2025 Mack Pioneer PR (4)
- 2026 Mack Pioneer PR (4)
Details
- NHTSA campaign
- 25V803000
- Manufacturer campaign
- SC0488
- Manufacturer
- Mack Trucks, Inc.
- Owner letters
- May 29, 2026
- Components
- Exterior lighting:lighting control module:software (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