2024–2026 Mack MD (electric) Recall: When the Controller Area Network (CAN) communications are interrupted, the…
NHTSA campaign 25V427000 · Vehicle Speed Control · filed Jun 23, 2025 · verified Jul 30, 2026
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.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
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
| Make | Model | Model years |
|---|---|---|
| Mack | MD (electric) | 2024, 2025, 2026 |
Related recalls
More Mack MD (electric) recalls
Other campaigns involving Mack vehicles
Source: NHTSA recall database, campaign 25V427000 (manufacturer number SC0481). Data last verified Jul 30, 2026.