2022-2027 Mack Terrapro (te) recall: ECU Software Error May Cause Unexpected Vehicle Movement/FMVSS 102
Report received by NHTSA: March 11, 2026.
Built by the Tribune's code from NHTSA's official records. No AI wrote this page. Updated Nov. 4, 2026.
- What's 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."
- The risk
Starting the vehicle while in gear may cause unexpected vehicle movement, increasing the risk of a crash or injury.
- Who's affected
775 vehicles potentially affected, according to NHTSA. Models: 2022-2027 Mack Terrapro (te).
- Compared with
Mack Trucks, Inc. has 9 NHTSA recalls in 2026 so far, compared with 17 in all of 2025.
Counted by the Tribune from NHTSA's records since Nov. 1, 2016.
- Before this
78 earlier NHTSA recalls by Mack Trucks, Inc. since Nov. 1, 2016; the 5 most recent:
- Dec. 15, 2025 2010-2016 Mack Granite (gu) recall: Rear Brakes May Overheat (agency record)
- Nov. 20, 2025 2025-2026 Mack Pioneer PR (4), 2026 Mack Anthem AN (4) recall: High Beams May Not Automatically Switch to Low Beams/FMVSS 108 (agency record)
- Nov. 20, 2025 2025-2026 Mack Pioneer PR (4) recall: Load Lock Clamps May Fail (agency record)
- Nov. 18, 2025 Mack Trucks, Inc. equipment recall: ECU Malfunction May Impair Safety Systems (agency record)
- Nov. 3, 2025 2024-2025 Mack Granite (gr) recall: Headlights May Fail (agency record)
Counted by the Tribune from NHTSA's records since Nov. 1, 2016.
- What to do and when
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.
NHTSA's record, word for word
- Check it yourself
NHTSA's VIN lookup shows whether a specific vehicle has an open recall.
Models in this recall
- Mack Terrapro (te) 2022-2027
The record as NHTSA published it
| NHTSA recall number | 26V139000 |
|---|---|
| Manufacturer | Mack Trucks, Inc. |
| Recall type | Vehicle |
| Component | ENGINE AND ENGINE COOLING |
| Report received by NHTSA | March 11, 2026 |
| Potentially affected | 775 vehicles |
| Manufacturer's recall number | SC0492 |
| “Do not drive” warning | No |
| Fire risk when parked (“park outside”) | No |
Source: National Highway Traffic Safety Administration recall records (public domain). NHTSA's record