MACK — recall

Automotive · United States · 2026-03-11

Mack TerraPro trucks, ECU software may allow engine to start improperly

Country	United States
Category	Automotive
Published	2026-03-11
Manufacturer	Mack Trucks, Inc.
Models affected	TERRAPRO (TE)
Model year	2022-2027
Units 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."_x000D_ Starting the vehicle while in gear may cause unexpected vehicle movement, increasing the risk of a crash or injury.
Component	ENGINE AND ENGINE COOLING
Remedy	Dealers will update the ECU software, free of charge. Owner notification letters are expected to be mailed May 8, 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.
Recall number	26V139000
Official notice	View source ↗

What this means for sellers

Likely platform / channel actions	OEMs/dealers will run the remedy (repair, replace or refund); component suppliers in the chain may face traceback.
Self-check for comparable products	Check your comparable products' design, materials and QC records against the defect described here.
Rules & standards likely involved	FMVSS (NHTSA) · Full guide →

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