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NHTSA campaign 24V399000 · Mack campaign SC0464

Mack Recall 24V-399: Loss of Steering and Drive Power

  • Do not drive

Owners are advised not to drive these vehicles until the recall repair is done.

NHTSA recall 24V399000 (Mack campaign SC0464) was reported by Mack Trucks, Inc. on June 4, 2024, with 24 vehicles potentially affected (per NHTSA). NHTSA's record lists the Mack MD (ELECTRIC) for the 2024 model year. Owners were notified on July 10, 2024, per NHTSA.

Updated daily from NHTSA's recall files

Is my vehicle included?

This page lists, by model year, the vehicles NHTSA's recall record names for campaign 24V399000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.

To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.

Free VIN check: decode a VIN to see its year, make and model.

Key facts

NHTSA campaign
24V399000 (also written 24V-399 or 24V399)
Filed by
Mack Trucks, Inc.
Mack campaign number
SC0464
Report received
Potentially affected
24 vehicles (per NHTSA)
Component
Electrical System — Propulsion System — Traction Battery — Management System/Energy Control Module (BMS/BECM) — Software
Owners notified

Repair completion: 100% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)

NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.

Vehicles listed for this recall

NHTSA's recall record lists these vehicles for recall 24V399000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.

Mack

  • Mack MD (ELECTRIC)

All Mack recalls

NHTSA's recall notice

As NHTSA's recall record states it for campaign 24V399000.

Defect description

Mack Trucks, Inc. (Mack) is recalling certain 2024 MMDe electric trucks. The battery management system software may cause the high-voltage battery to shut down, which can result in a sudden loss of steering control and drive power.

Safety consequence

A sudden loss of steering control and drive power increases the risk of a crash.

Manufacturer remedy

Owners are advised not to drive their vehicles until the remedy has been completed. Dealers will update the battery management system software, free of charge. Owner notification letters were mailed July 10, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0464.

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.

Sources

Official NHTSA notice for recall 24V399000

Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.