NHTSA : 23V402000🔴 ⚠️ High severity

Campaign Details

Component: ELECTRICAL SYSTEM:WIRING:RELAYS/SOLENOIDS

Defect Description

Mack Trucks, Inc. (Mack) is recalling certain 2019-2023 LR battery electric trucks. The power cables that connect to the windscreen heater relay may have a loose connection and cause the relay to fail.

Consequence / Hazard

A relay that fails in the closed position will continue to power the cabin heater, overheating the relay and increasing the risk of a fire.

Proposed Solution

Dealers will tighten the power cable to relay connection, free of charge. Owner notification letters are expected to be mailed August 4, 2023. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SCC0444.

🚗 Affected Vehicles5

All the models below were recalled for this exact same problem.