Mack Anthem (An), Terrapro (Te) +2 more: Vehicle speed control

Affects Mack Anthem (An), Terrapro (Te), Granite (Gr), LR · 2023–2024 — about 650 vehicles.

The hazard

An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.

What to do

Mack will replace the throttle pedal and update the vehicle software, free of charge. Owner letters were mailed February 27, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0455.

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