NHTSA Recall 25V427000: Throttle position sensor (tps) (vehicle speed control) and software (electrical system)
Mack Trucks, Inc. reported this safety recall to NHTSA on , covering an estimated 148 vehicles. It affects 2024–2026 Mack Md (electric).
| NHTSA campaign | 25V427000 |
|---|---|
| Manufacturer campaign | SC0481 |
| Components | VEHICLE SPEED CONTROL › THROTTLE › THROTTLE POSITION SENSOR (TPS); ELECTRICAL SYSTEM › SOFTWARE |
| Report received | June 23, 2025 |
| Owner notification | August 14, 2025 |
| Initiated by | Manufacturer |
Defect
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."
Safety risk
An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.
Remedy
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.
Vehicles covered by recall 25V427000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.