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2025-2027 Mack Anthem An (4) and Mack Pioneer PR (4) recall: control unit/module

Mack Trucks, Inc. reported this safety recall on April 23, 2026. It covers about 2,772 vehicles.

vehicles affected
2,772
reported
Apr 23, 2026
owners notified
Jun 8, 2026

Service brakes, air: antilock: control unit/module

What is wrong
Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2026-2027 Anthem (4) vehicles. The rear brake modulators may have unprotected electrical connectors that can short circuit and lead to a loss of the anti-lock brake system (ABS) and electronic stability control (ESC).
Risk
A loss of anti-lock brakes and electronic stability control increases the risk of a crash or injury.
Remedy
Dealers will inspect the rear brake modulator electrical connectors, install a protective cover, and replace the rear brake modulators, as necessary, free of charge. Owner notification letters were mailed June 8, 2026. Owners may contact Mack's customer service at 1‑800‑866‑1177. Mack's number for this recall is SC0494. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on beginning April 30, 2026.

Recall number 26V261000

Affected vehicles

Questions about recall 26V261000

Is there a recall on the 2025-2027 Mack Anthem An (4) and Mack Pioneer PR (4) control unit/module?

Yes. Recall 26V261000, reported on April 23, 2026, covers about 2,772 vehicles.

What is the fix for recall 26V261000?

Dealers will inspect the rear brake modulator electrical connectors, install a protective cover, and replace the rear brake modulators, as necessary, free of charge. Owner notification letters were mailed June 8, 2026. Owners may contact Mack's customer service at 1‑800‑866‑1177. Mack's number for this recall is SC0494. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on beginning April 30, 2026.

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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