Recall 25V427000: 2024–2026 Mack MD (electric)
Updated from NHTSA data · How we count
- Report date
- Jun 23, 2025
- Vehicles affected
- 148
- Models
- 1
- Initiated by
- Manufacturer
The problem
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.
Affected vehicles
- 2024 Mack MD (electric)
- 2025 Mack MD (electric)
- 2026 Mack MD (electric)
Details
- NHTSA campaign
- 25V427000
- Manufacturer campaign
- SC0481
- Manufacturer
- Mack Trucks, Inc.
- Owner letters
- Aug 14, 2025
- Components
- Electrical system:software (Electrical System); Vehicle speed control:throttle:throttle position sensor (tps) (Acceleration & Cruise Control)
Recall repairs are free at authorized dealers. To see if your vehicle is included, enter your VIN at NHTSA.gov or call the manufacturer.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. Methodology