NHTSA Recall 23V024000: Switches/knobs/buttons (electrical system)
Mack Trucks, Inc. reported this safety recall to NHTSA on , covering an estimated 43 vehicles. It affects 2019–2023 Mack Lrbe (electric).
| NHTSA campaign | 23V024000 |
|---|---|
| Manufacturer campaign | SC0440 |
| Component | ELECTRICAL SYSTEM › WIRING › SWITCHES/KNOBS/BUTTONS |
| Report received | January 23, 2023 |
| Owner notification | March 16, 2023 |
| Initiated by | Manufacturer |
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.
Safety risk
A coolant heater that overheats can increase the risk of fire.
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.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Vehicles covered by recall 23V024000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.