Toronto, Ontario -- General Motors has issued a recall for more than 40,000 Chevrolet Blazer EVs due to a defect in the electric parking brake system that could increase the risk of a crash.
The recall, posted by the U.S. National Highway Traffic Safety Administration, affects 2024 and 2025 model-year Blazer EVs. According to its filings, “the design routing of the parking brake wire harness does not sufficiently inhibit flexing of the wires, which can result in a fractured circuit and inadvertent application of the parking brake while driving.”
GM launched an internal investigation into the issue in March of 2024 after receiving four field reports. By mid-May, the automaker had identified 97 potentially related incidents, including two reports of rear-wheel lockup and one case of parking brake loss-of-function.
Although the recall could result in sudden deceleration or a dragging sensation while driving, GM says it is not aware of any crashes or injuries related to the defect. Drivers may hear a chime or see a warning message in the instrument cluster if the issue occurs.
GM dealers will inspect affected vehicles, reroute the parking brake wiring harness and, if necessary, replace any damaged components. Notification letters will be mailed to owners starting August 11, 2025.
The recall is the latest in a string of software and electronic related issues tied to the Blazer EV, GM’s high-profile electric SUV built on its Ultium platform. Sales of the model were briefly paused in early 2024 due to widespread software concerns, then resumed later in the year after updates were made.
While the current recall does not relate to software quality, it reinforces concerns among industry professionals about the growing complexity of EV systems--and the repair challenges they present.
Technicians in the collision repair industry are already seeing firsthand how EV wiring, high-voltage safety protocols and diagnostic routines are reshaping traditional workflows.
