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2025-2026 Mack Anthem An (4) and Mack Pioneer PR (4) recall: software

Mack Trucks, Inc. reported this safety recall on November 20, 2025. It covers about 247 vehicles.

vehicles affected
247
reported
Nov 20, 2025
owners notified
May 29, 2026

Exterior lighting: lighting control module: software

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."
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.
Remedy
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 beginning November 27, 2025.

Recall number 25V803000

Affected vehicles

Questions about recall 25V803000

Is there a recall on the 2025-2026 Mack Anthem An (4) and Mack Pioneer PR (4) software?

Yes. Recall 25V803000, reported on November 20, 2025, covers about 247 vehicles.

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. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on beginning November 27, 2025.

Is the recall repair free?

Safety recall repairs are done free of charge at authorized dealers. A dealer can confirm with the VIN whether a specific vehicle is included and whether the repair has already been done.

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