NHTSA safety recall
Recall 25V427000: ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:THROTTLE:THROTTLE POSITION SENSOR (TPS)
Mack Trucks, Inc. · Reported to NHTSA Jun 23, 2025
Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.
Check a VIN on NHTSA.govWhat this recall covers
NHTSA's campaign record, quoted as published
The 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."
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 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.
A safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
Campaign details
Identifiers and dates as filed with NHTSA
- Manufacturer
- Mack Trucks, Inc.
- Manufacturer's campaign number
- SC0481
- NHTSA campaign number
- 25V427000
- Units potentially affected
- 148
- Report received
- Jun 23, 2025
- Production range
- Jun 22, 2023 – Feb 17, 2025
- Campaign type
- Vehicle
- Federal safety standard (FMVSS)
- 124
Vehicles covered
3 model years across 1 model
Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.