2021 Mack Lrbe (electric) Recalls

Recalls on record Updated July 2026

The 2021 Mack Lrbe (electric) has 2 NHTSA recall campaigns affecting an estimated 90 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.

Recall campaigns

ELECTRICAL SYSTEM 23V402000 2023-06-04 47 affected
Defect

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

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.

Remedy

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.

ELECTRICAL SYSTEM 23V024000 2023-01-23 43 affected
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.

Consequence

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.

Sources & methodology

Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2021 Mack Lrbe (electric) as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.