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💥 Crash risk🩹 Injury riskNHTSA 26V261📅 Apr 23, 2026

2025–2027 Mack Pioneer PR (4) & 2026–2027 Mack Anthem AN (4) recall: brakes

⚠️ What's 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).

💥 The risk

A loss of anti-lock brakes and electronic stability control increases the risk of a crash or injury.

🔧 The fix

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 NHTSA.gov beginning April 30, 2026.

Is the fix free? Yes. Safety recall repairs are free at any authorized dealer under federal law, including parts and labor. (Vehicles more than 15 years old when the recall was announced can be excluded, but most manufacturers still fix them.)
NHTSA campaign
26V261000
Manufacturer recall #
SC0494
Manufacturer
Mack Trucks, Inc.
Vehicles affected
2,772
Component
SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
Owner phone
1-800-866-1177
NHTSA hotline
1-888-327-4236
Owner letters mailed
Jun 8, 2026
Built
Oct 22, 2024 – Apr 21, 2026
Recall started by
MFR

Vehicles in this recall

Is your car affected? Recalls apply to specific VINs. Check my VIN

FAQ

Is the 26V261 recall repair free?

Yes. Safety recall repairs are free at any authorized dealer under federal law, including parts and labor. (Vehicles more than 15 years old when the recall was announced can be excluded, but most manufacturers still fix them.)

Which vehicles are included in recall 26V261?

2025–2027 Mack Pioneer PR (4) & 2026–2027 Mack Anthem AN (4). 2,772 vehicles may be affected. Check your exact car with its 17-character VIN.

What should I do?

Check your VIN, then call any authorized Mack dealer to book the free repair or call the manufacturer at 1-800-866-1177.