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💥 Crash riskNHTSA 25V427📅 Jun 24, 2025

2024–2026 Mack MD (electric) recall: speed control

⚠️ What's wrong

Mack Trucks, Inc. (Mack) is recalling certain 2024-2026 Mack MD vehicles. When the Controller Area Network (CAN) communications are interrupted, the throttle signal from the electro mobility control unit may retain the last known throttle setting, and the engine will not return to idle as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 124, "Accelerator Control Systems."

💥 The risk

An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.

🔧 The fix

Dealers will update the control unit software, free of charge. Owner notification letters were mailed August 14, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0481.

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
25V427000
Manufacturer recall #
SC0481
Manufacturer
Mack Trucks, Inc.
Vehicles affected
148
Component
ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:THROTTLE:THROTTLE POSITION SENSOR (TPS)
Owner phone
1-800-866-1177
NHTSA hotline
1-888-327-4236
Owner letters mailed
Aug 14, 2025
Built
Jan 22, 2025 – Feb 17, 2025
Recall started by
MFR

Vehicles in this recall

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

FAQ

Is the 25V427 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 25V427?

2024–2026 Mack MD (electric). 148 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.