2024 Mack Md (electric) Electrical System Recall 24V399000 (Mack SC0464)
NHTSA recall 24V399000 (Mack recall SC0464) covers about 24 2024 Mack Md (electric) vehicles (electrical system), filed with NHTSA Jun 4, 2024. NHTSA lists a DO-NOT-DRIVE advisory: owners should not drive these vehicles until the repair is done.
Source: NHTSA campaign 24V399000 · Data as of Nov 6, 2026 · By CarWhere Research
Do not drive: NHTSA safety advisory
NHTSA lists a do-not-drive advisory for this campaign. Owners should not drive affected vehicles until the recall repair is done.
What's recalled
Component: Electrical system (propulsion system, traction battery, management system/energy control module (bms/becm), software)
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.
The risk
A sudden loss of steering control and drive power increases the risk of a crash.
The remedy and its status
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.
Status: NHTSA lists Jul 10, 2024 as the owner-notification date for this campaign.
Mack recall number SC0464
NHTSA lists the manufacturer's own recall number for 24V399000 as SC0464. Owner letters and dealer service departments often use this code, so a search for "SC0464 recall" refers to the same campaign.
Affected models and years
Models and model years NHTSA lists for this campaign. Not every vehicle of a listed model and year is included; check by VIN.
| Vehicle | Model years | More |
|---|---|---|
| Mack Md (electric) | 2024 | — |
Key dates
- Report filed with NHTSA
- Jun 4, 2024
- Owner notification
- Jul 10, 2024
- Recall initiated by
- the manufacturer
- Filed by
- Mack Trucks, Inc.
Check your VIN for 24V399000
- Find the 17-character VIN on the driver-side dashboard (visible through the windshield), the door-jamb sticker, or your registration.
- Enter it in NHTSA's free VIN recall lookup. It shows every open recall on that exact vehicle, including this one if it applies and hasn't been repaired.
- If 24V399000 is open, call any Mack dealer's service department and give them the recall number (24V399000 or SC0464). The repair is free.
Not sure of the exact model or year? Decode it first with the free VIN decoder.
Frequently asked questions
What is recall 24V399000?
NHTSA recall 24V399000 (Mack recall SC0464) covers about 24 2024 Mack Md (electric) vehicles (electrical system), filed with NHTSA Jun 4, 2024. NHTSA lists a DO-NOT-DRIVE advisory: owners should not drive these vehicles until the repair is done. It covers certain 2024 MMDe electric trucks.
Is it safe to drive a vehicle with recall 24V399000?
No. NHTSA's record for 24V399000 carries a do-not-drive advisory: owners should not drive the vehicle until the recall repair is done. Contact a Mack dealer to arrange the repair.
How do I know if my vehicle is affected by 24V399000?
Only a VIN lookup can tell you. Not every vehicle of the listed models and years is included, and repaired vehicles drop off. Enter your 17-character VIN in NHTSA's free recall lookup at nhtsa.gov/recalls, or ask any Mack dealer to check it.
What is the fix for recall 24V399000, and is it free?
NHTSA's record says: "Owners are advised not to drive their vehicles until the remedy has been completed." NHTSA lists Jul 10, 2024 as the owner-notification date for this campaign. Safety-recall repairs are done free of charge at authorized dealers.
What is the Mack recall number for 24V399000?
NHTSA lists the manufacturer's own recall number as SC0464. Dealers and owner letters often use that code (SC0464) instead of the NHTSA campaign number 24V399000.
Sources and method
- NHTSA recall record for 24V399000, from NHTSA's public recall campaign database. Problem, risk and remedy text is NHTSA's own wording.
- "Vehicles affected" is NHTSA's potential-units-affected count for the whole campaign.
- Data as of Nov 6, 2026. NHTSA updates campaigns as manufacturers file amendments, so check the official record for the latest.
Related recalls
- 25V666000: 2019–2025 Mack (5 models) seat belts (Oct 6, 2025)
- 24V447000: 2024 Mack Md (electric) electrical system (Jun 16, 2024)