VehicleVerdict

2021 Mack Lrbe (electric) problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 0 complaints on file for the 2021 Mack Lrbe (electric) — too few to judge reliability from owner reports alone — but 2 recall campaigns apply to this year, so any used example should have its VIN checked for completed recall work.

0

NHTSA complaints

2

Recalls

0

Investigations

0

Crash-involved

0

Fires reported

0

Injuries

0

Deaths

—

NCAP overall

How does 2021 compare to other Lrbe (electric) years?

Lrbe (electric) NHTSA complaints by model year, 2021 highlighted1 complaints2019: 0 complaints2020: 0 complaints2021: 0 complaints2022: 0 complaints2023: 0 complaints2024: 0 complaints2025: 0 complaints
Lrbe (electric) NHTSA complaints by model year, 2021 highlighted. Red bars are years to avoid.

See all Lrbe (electric) years to avoid →

Does the 2021 Mack Lrbe (electric) have recalls?

2 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

23V402000Electrical SystemJune 4, 2023 · 47 units

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.

23V024000Electrical SystemJanuary 23, 2023 · 43 units

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.

2021 Mack Lrbe (electric) — common questions

Is the 2021 Mack Lrbe (electric) reliable?

The record is thin — 0 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 2 recalls should be verified as completed.

Does the 2021 Mack Lrbe (electric) have recalls?

Yes — NHTSA lists 2 recall campaigns affecting the 2021 Mack Lrbe (electric). Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.