SYS ONLINE INGEST 6 hours ago SOURCE NHTSA · TC BUILD v0.0.29
Vehicle scope Default: all classes — narrow to retail passenger anytime
Network/ Canada/ Mack/ 2026108

Mack · Canada · High

Mack Terrapro: Powertrain

Affects Mack Terrapro · 2022–2026 — about 103 vehicles.

The hazard

Issue: On certain trucks, a software problem could allow the engine to be started with the transmission in the drive or reverse gear. If this happens, the truck could move suddenly when it is started. Safety Risk: Sudden and unexpected movement of the truck could increase the risk of an injury or a crash. Corrective Actions: To reduce the safety risk, Mack recommends you ensure the transmission is in the neutral gear before starting the engine until the recall repairs have been completed. Mack will notify owners by mail and advise you to take your truck to a dealership to update the ECU software.

What to do

Contact your dealer; the remedy details were not included in the filing.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational