2024-2026 Medium-Duty Electric (MDe) vehicles that were incorrectly manufactured with the hill start assist (HSA) message enabled recall: Hill start assist message incorrectly enabled

Published October 29, 2026 by U.S. National Highway Traffic Safety Administration

Crash risk

What's being 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.

How to identify it

NHTSA campaign 26V719000; Manufacturer campaign SC0502

The hazard

A false hill start assist message can lead to unexpected vehicle rollback on an incline, increasing the risk of a crash.

What to do

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.

The official notice

This page is a summary of the notice published by U.S. National Highway Traffic Safety Administration, collected from U.S. National Highway Traffic Safety Administration. Check the original before you act on it.

Read the official notice

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What's being recalled

How to identify it

The hazard

What to do

The official notice

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