Truckers: Mack Recalls 151 MD Electric Trucks Over Hill Start Message

Image caption: Illustration: AI-generated illustration, not a photo of the people, vehicles or places in this story. It shows a technician sitting in the driver seat of a yellow box truck in a service bay.
Mack Trucks is recalling about 151 model year 2024 to 2026 Mack MD Electric trucks because they were built with a hill start assist message turned on, even though the electric models do not have that feature, CCJ reported Nov. 10. Truck drivers and fleets running the medium-duty electric model can check whether their trucks are included.
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Standard Mack MD models are equipped with hill start assist. The MD Electric is not, but the same owner's manual language and dashboard icons were mistakenly used on both platforms, according to the report.
Why it matters on a hill
According to National Highway Traffic Safety Administration recall documents cited by CCJ, a false hill start assist message can lead to a truck rolling back unexpectedly on an incline. A driver who sees the message might expect the truck to hold itself when it will not.
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The fix
Dealers will update the dashboard notification software and add a correction to the owner's manual at no cost to owners, CCJ reports. Owner notification letters are expected to be mailed Dec. 28.
Owners can contact Mack customer service at 1-800-866-1177 and refer to Mack recall number SC0502. The NHTSA recall number is 26V-719.
Timeline
The NHTSA recall listing is dated Oct. 29, 2026. It describes the trucks as certain 2024 to 2026 Medium-Duty Electric, or MDe, vehicles that were "incorrectly manufactured with the hill start assist (HSA) message enabled." Vehicle identification numbers became searchable Nov. 5, and trucking press reported the recall Nov. 10.
Checking for open recalls
NHTSA says the vehicle identification numbers involved became searchable on NHTSA.gov beginning Nov. 5, so owners can check a specific truck by VIN there or look up campaign number 26V-719. Mack dealers and Mack customer service can also confirm whether a specific truck is included.
Big Rig Daily has covered other recent recalls, including more than 34,000 trucks and trailers recalled earlier this fall.
FAQ
Which trucks are recalled?
About 151 model year 2024 to 2026 Mack MD Electric trucks, according to CCJ.
What is wrong with them?
They show a hill start assist message for a feature they do not have. NHTSA documents say that can lead to unexpected rollback on an incline.
Will owners pay for the fix?
No. Dealers will update the software and the owner's manual at no cost to owners.
When will letters go out?
Owner letters are expected to be mailed Dec. 28.
When did you last check whether your truck has an open recall?
Sources: CCJ, USA Today recall database, NHTSA 26V-719.
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