Mack MD (ELECTRIC) (2024-2026): Electrical system
Recall 25V427000 · Jun 23, 2025 · Mack Trucks, Inc.
148
vehicles affected
148
vehicles affected
Facts
- Recall number
- 25V427000
- Date
- Jun 23, 2025
- Maker
- Mack Trucks, Inc.
- Units affected
- 148
- Kind
- Vehicles
- Component
- Electrical system > Software; Vehicle speed control > Throttle > Throttle position sensor (tps)
- Model years
- 2024-2026
- Started by
- The maker
- Hazard
- Crash risk
What is 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."
What can happen
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
Recall repairs are free of charge.
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
1 model, 3 model years in all
| Make | Model | Model years |
|---|---|---|
| Mack | MD (ELECTRIC) | 2024-2026 |
Related pages
Questions and answers
Which vehicles are in recall 25V427000?
1 model: Mack MD (ELECTRIC) (2024-2026), about 148 vehicles in all.
What is the fix for recall 25V427000?
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.
What can happen?
An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.
A recall means the maker found a safety problem and offers a free fix; it does not mean every unit has the problem. Units affected are as reported by the company. Popular models sell more and so have more recalls and complaints. Official public data; texts are shortened. A dealer can tell whether a single vehicle still needs the repair.