More than 40,000 Chevrolet Blazer EVs from model years 2024 and 2025 are being recalled due to a defect that may cause the rear parking brakes to suddenly engage while driving or fail to engage at all, increasing the risk of a crash or vehicle rollaway.
General Motors identified the issue in the rear parking brake wiring harnesses, which may become damaged or corroded due to design flaws in the routing. The defect allows excessive wire flexing during normal driving, potentially leading to shorts or breaks.
"The design routing of the parking brake wire harness does not sufficiently inhibit flexing of the wires that may cause shorting or breaking of the wires from normal driving conditions," GM stated in the recall notice.
The automaker began investigating the issue in March after receiving four customer complaints about “service parking brake” warnings or vehicles being stuck in PARK. A deeper review uncovered 97 similar complaints dating from Aug. 15, 2023, to May 15, 2025. Two owners reported that their rear wheels locked while driving, and one reported complete loss of the parking brake.
Drivers may notice a “service parking brake” alert, and in some cases, may be unable to shift out of PARK.
GM will begin notifying affected owners by mail starting Aug. 11. Dealerships will inspect the wiring harnesses and replace any that are damaged. If no damage is found, technicians will reroute the harnesses and apply anti-abrasive tape to prevent future wear.
Chevrolet Blazer EV owners can contact GM customer service at 800-222-1020 and reference recall number N252503010 for more information.
Check for open recalls on any vehicle using a VIN or license plate number at nhtsa.gov/recalls.
