2024-2026 Mack MD (electric) recall: Hill Start Assist Message Incorrectly Enabled
Report received by NHTSA: Oct. 29, 2026.
Built by the Tribune's code from NHTSA's official records. No AI wrote this page. Updated Nov. 5, 2026.
- What's recalled
Mack Trucks, Inc. (Mack) is recalling certain 2024-2026 Medium-Duty Electric (MDe) vehicles that were incorrectly manufactured with the hill start assist (HSA) message enabled.
- The risk
A false hill start assist message can lead to unexpected vehicle rollback on an incline, increasing the risk of a crash.
- Who's affected
151 vehicles potentially affected, according to NHTSA. Models: 2024-2026 Mack MD (electric).
- Compared with
Mack Trucks, Inc. has 10 NHTSA recalls in 2026 so far, compared with 17 in all of 2025.
Counted by the Tribune from NHTSA's records since Nov. 1, 2016.
- Before this
4 earlier NHTSA recalls for these models since Nov. 1, 2016:
- Oct. 6, 2025 2019-2025 Mack Anthem (an), 2019-2025 Mack Granite (gr), 2020-2025 Mack MD and 2 more models recall: Improperly Welded Seat Belt Anchor/FMVSS 210 (agency record)
- June 23, 2025 2024-2026 Mack MD (electric) recall: Delay Returning to Engine Idle/FMVSS 124 (agency record)
- June 16, 2024 2024 Mack MD (electric) recall: Incorrectly Assembled High Voltage Connector (agency record)
- June 4, 2024 2024 Mack MD (electric) recall: Loss of Steering and Drive Power (agency record)
Counted by the Tribune from NHTSA's records since Nov. 1, 2016.
- What to do and when
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.
NHTSA's record, word for word
- Check it yourself
NHTSA's VIN lookup shows whether a specific vehicle has an open recall.
Models in this recall
- Mack MD (electric) 2024-2026
The record as NHTSA published it
| NHTSA recall number | 26V719000 |
|---|---|
| Manufacturer | Mack Trucks, Inc. |
| Recall type | Vehicle |
| Component | ELECTRICAL SYSTEM |
| Report received by NHTSA | Oct. 29, 2026 |
| Potentially affected | 151 vehicles |
| Manufacturer's recall number | SC0502 |
| “Do not drive” warning | No |
| Fire risk when parked (“park outside”) | No |
Source: National Highway Traffic Safety Administration recall records (public domain). NHTSA's record