NHTSA campaign 25V427000 · Mack campaign SC0481
Mack Recall 25V-427: Delay Returning to Engine Idle/FMVSS 124
NHTSA recall 25V427000 (Mack campaign SC0481) was reported by Mack Trucks, Inc. on June 23, 2025, with 148 vehicles potentially affected (per NHTSA). NHTSA's record lists the Mack MD (ELECTRIC) for model years 2024–2026. Owners were notified on August 14, 2025, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 25V427000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 25V427000 (also written 25V-427 or 25V427)
- Filed by
- Mack Trucks, Inc.
- Mack campaign number
- SC0481
- Report received
- Potentially affected
- 148 vehicles (per NHTSA)
- Component
- Vehicle Speed Control — Throttle — Throttle Position Sensor (TPS)
- Owners notified
- Safety standard
- FMVSS 124
Repair completion: 46.62% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 25V427000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
Mack
Mack MD (ELECTRIC)
NHTSA's recall notice
As NHTSA's recall record states it for campaign 25V427000.
Defect description
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 consequence
An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.
Manufacturer 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.
Sources
Official NHTSA notice for recall 25V427000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.