Truck cabin heater may catch fire
Defect Summary
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 Consequence
A coolant heater that overheats can increase the risk of fire.
Corrective Action
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.
Similar Recalls
Other recalls from Mack Trucks, Inc. or involving Electrical System.
FAQ: Recall 23V024000
Your rights, the repair process, and what each field on this page means.
What is recall 23V024000?
NHTSA recall 23V024000 was issued by Mack Trucks, Inc. on January 23, 2023. It addresses: Truck cabin heater may catch fire. The recall affects approximately 43 vehicles, with the defect involving the Electrical System component.
How do I get this recall repaired?
Contact any authorized Mack Trucks, Inc. dealer and reference NHTSA recall ID 23V024000 or the manufacturer campaign number SC0440. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.