NHTSA recall,
Mack MD Electric Vehicles
Mack Medium-Duty Electric vehicles have a false hill start assist message that can cause unexpected rollback and crash risk.
Summary by Recall Canary from the NHTSA notice
What happened
Mack Trucks, Inc. is recalling certain 2024-2026 Medium-Duty Electric (MDe) vehicles that were incorrectly manufactured with the hill start assist (HSA) message enabled. A false hill start assist message can lead to unexpected vehicle rollback on an incline, increasing the risk of a crash. The recall affects 151 vehicles nationwide.
The issue was reported to NHTSA on October 29, 2026. Dealers will update the dashboard notification software and add a correction to the owner's manual, free of charge. Owner notification letters are expected to be mailed December 28, 2026.
What to do
If you own a vehicle in this recall:
- Check your VIN (vehicle identification number) at nhtsa.gov/recalls. VINs are searchable from November 5, 2026.
- Dealers will update the dashboard notification software and add a correction to the owner's manual, free of charge.
- Owner notification letters are expected to be mailed December 28, 2026. You may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0502. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning November 5, 2026.
- Watch your mail.
What you get Free repair
Full text from NHTSA
Dealers will update the dashboard notification software and add a correction to the owner's manual, free of charge. Owner notification letters are expected to be mailed December 28, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0502. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning November 5, 2026.
Is your Mack affected?
These models and years may be affected.
- MD (Electric), model years
Your VIN confirms it. Find the 17-character VIN on the driver's side of the dashboard or on your registration card.
Check your VIN on nhtsa.gov (opens in a new tab)Recall details
- Reported to NHTSA
- Status
- Open
- Weekly archive
- Listed the week of Oct 26, 2026
- Sold in
- Nationwide
- Manufacturer
- Mack Trucks, Inc.
- Component
- Electrical system defect
- Risk
No NHTSA driving warning
- NHTSA campaign number
- 26V719000
- Vehicles affected
- 151
- Repair cost
- Free of charge
- Owner letters expected
- Manufacturer's recall number
- SC0502
- Manufacturer phone
- 1-800-866-1177
All recalls from Mack Trucks, Inc.
Timeline
Reported to NHTSA
Added to Recall Canary
