Mack Trucks, Inc.: Engine And Engine Cooling:Engine:Engine Control Module (Ecu/Ecm):Software (2022 MACK TERRAPRO (TE), 2023 MACK TERRAPRO (TE), 2024 MACK TERRAPRO (TE)…)
Read the official notice at NHTSA →
The text below is copied from the official NHTSA record. If anything differs, the official notice is correct.
- Company / brand
- Mack Trucks, Inc.
- Product
- 2022 MACK TERRAPRO (TE); 2023 MACK TERRAPRO (TE); 2024 MACK TERRAPRO (TE); 2025 MACK TERRAPRO (TE); 2026 MACK TERRAPRO (TE); 2027 MACK TERRAPRO (TE)
- Reason / hazard
- Starting the vehicle while in gear may cause unexpected vehicle movement, increasing the risk of a crash or injury.
- What to do (remedy)
- 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.
- Distribution / sold at
- Potentially affected: 775
- Defect
- 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."
- Component
- ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
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