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NHTSANHTSA · Vehicles·Recall number 25V803000

2026 Mack Anthem An (4) | 2025 Mack Pioneer Pr (4) | 2026 Mack Pioneer Pr (4) — Exterior lighting: lighting control module: software

Published November 20, 2025 · Recall initiated: November 20, 2025

Summary

NHTSA records recall 25V803000, published November 20, 2025. Recalling firm: Mack Trucks, Inc.; 2026 Mack Anthem An (4) | 2025 Mack Pioneer Pr (4) | 2026 Mack Pioneer Pr (4) — Exterior lighting: lighting control module: software.

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What's the hazard

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 to do

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.

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Recall details

Brand
MACK
Model
ANTHEM AN (4)
Manufacturer
Mack Trucks, Inc.
Lot
2026 MACK ANTHEM AN (4) | 2025 MACK PIONEER PR (4) | 2026 MACK PIONEER PR (4)
Risk classification
V
Country
US

Related recalls

Questions about this recall

Was 2026 Mack Anthem An (4) | 2025 Mack Pioneer Pr (4) | 2026 Mack Pioneer Pr (4) — Exterior lighting: lighting control module: software recalled?

Yes. NHTSA published recall 25V803000 on November 20, 2025. Reported hazard: 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 should I do if I have this product?

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.

How do I know if my unit is part of the recall?

Compare your product details with the notice. Brand: MACK. Model: ANTHEM AN (4).

View official NHTSA notice(opens on nhtsa.gov)