NHTSA Vehicles recall ·
2022–2027 Mack Terrapro (TE) recall: ECU Software Error May Cause Unexpected Vehicle Movement/FMVSS 102
- Recall number
- 26V139000
- Date
- Manufacturer
- Mack Trucks, Inc.
- Category
- Vehicles › Engine And Engine Cooling
- Recall type
- Vehicle
- Units affected
- 775
- Hazard tags
- Crash risk Injury risk
Read the official NHTSA notice ↗
Product
Engine And Engine Cooling
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Mack | Terrapro (TE) | 2022–2027 |
Not every vehicle of these models is affected. Enter your 17-character VIN on NHTSA.gov to check your vehicle.
Why was it recalled?
Mack Trucks, Inc. (Mack) is recalling certain 2022-2027 TerraPro trucks. The engine control unit (ECU) software may allow the engine to start when the transmission is not in Neutral. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 102, "Transmission Shift Lever Sequence, Starter Interlock, and Transmission Braking Effect."
Consequence
Starting the vehicle while in gear may cause unexpected vehicle movement, increasing the risk of a crash or injury.
What should you do?
Dealers will update the ECU software, free of charge. Owner notification letters were mailed April 14, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0492. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov March 18, 2026.
Manufacturer campaign number
SC0492
Source: NHTSA (vehicles), recall 26V139000. Official notice. Republished from public data; RecallFlag is not affiliated with the NHTSA.