Mack · United States · High
Mack MD (Electric): Vehicle speed control — throttle position sensor (tps)
Affects Mack MD (Electric) · 2024–2026 — about 148 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
Dealers will update the control unit software, free of charge. Owner notification letters were mailed August 14, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0481.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational