2024–2026 Mack MD (electric): Electrical System recall
NHTSA campaign 25V427000 · 148 units potentially affected · filed Jun 23, 2025
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."
Why it matters
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.
Recall details
- NHTSA campaign
- 25V427000
- Manufacturer no.
- SC0481
- Manufacturer
- Mack Trucks, Inc.
- Component
- ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:THROTTLE:THROTTLE POSITION SENSOR (TPS)
- Units affected
- 148
- Report received
- Jun 23, 2025
- Owner letters
- Aug 14, 2025
- Type
- Vehicle
Check whether your vehicle is included with the official NHTSA VIN lookup or your dealer. Repairs for safety recalls are free.
Vehicles covered
- Mack MD (electric) 2024, 2025, 2026