Official recall atom
Mack Trucks, Inc. recall 26V139: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
Official action
Source. US National Highway Traffic Safety Administration
Official identifier. 26V139
Date. 2026-03-11
Jurisdiction. United States
Hazard (official). Starting the vehicle while in gear may cause unexpected vehicle movement, increasing the risk of a crash or injury.
Action / remedy (official). 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.
Potential units affected. 775 as published in the campaign file.
Owner notification date. 2026-04-14
Licence: United States Government public recall data
Attribution: Source: National Highway Traffic Safety Administration recall campaign
Campaign scope
Affected make/model groups in the official file
Related paths
- US National Highway Traffic Safety Administration ladder
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