NHTSA recall 23V024000
Electrical system › Wiring › Switches/knobs/buttons
Mack Lrbe (electric)
Reported Jan 23, 202343 vehicles affectedMack Trucks, Inc.Maker’s number SC0440
The defect
Mack Trucks, Inc. (Mack) is recalling certain 2019 and 2021-2023 LRBE battery electric trucks. The cabin heater relay may fail, causing the coolant heater to overheat.
The risk
A coolant heater that overheats can increase the risk of fire.
The remedy
Dealers will update the software for the Hybrid Powertrain Control Unit and Instrument Cluster, and install replacement relays, free of charge. Owner notification letters were mailed March 16, 2023. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0440.