Safety defect investigations, technical specifications, and manufacturer repair notices for Canadian owners.
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Safety recall notices and repair campaigns registered for the 2021 Mack Md in Canada.
On certain trucks, the passenger-side seat belt anchor may not have been secured to the floor properly. As a result, the seat belt could detach in a crash. Note: For the MD model, this recall also affects certain 2025 model year MD electric vehicles.
A seat belt that detaches could increase the risk of injury in a crash.
Mack will notify owners by mail and advise you to take your truck to a dealership to reinforce the passenger-side seat belt anchor.
On certain trucks, when the manual override is used to switch off the daytime running lamps (DRLs), the lights may not turn on again when you start driving. Canadian regulations require that if DRLs are manually turned off, they must turn on again when you start driving.
Driving without daytime running lights could make the vehicle less visible to others and increase the risk of a crash.
Mack will notify owners by mail and instruct you to take your truck to a dealer to update the vehicle software.
Official Transport Canada safety campaigns, Canadian motor vehicle safety compliance standards and live VIN specifications.
Explore safety recall records by model year.