General Motors recalls 90,081 cars over a transmission defect that poses potential safety risks. Filed with the National Highway Traffic Safety Administration (NHTSA), the recall focuses on a fault in the 10-speed transmission that can cause internal damage, resulting in the locking up of front wheels.
The issue involves cars equipped with a 10-speed transmission. Over time, the transmission control valve in the models may experience excessive wear, leading to a harsh downshifting, briefly causing the wheels to lock, and raising the risk of a crash.
GM previously investigated the issue and found that the lock-ups typically lasted less than 150 milliseconds. Since no accidents or injuries were linked to the problem, the company concluded that the duration was insufficient for the vehicle to lose control and decided to close the investigation as reported by the safety administration.
The investigation into the issue was reopened in November 2024, during which a GM investigator identified 115 reports of lock-ups, including one incident that resulted in an accident.
The affected cars include the 2020-2021 Cadillac CT4 and CT5, the 2019-2020 Cadillac CT6, and the 2020-2022 Chevrolet Camaro. According to the NHTSA, only 1% of the 90,081 potentially affected vehicles are estimated to have the defect.
GM plans to address the issue by updating the transmission control software in the affected cars. The updated software will track valve performance and identify signs of excessive wear, enabling the detection of problems around 10,000 miles before a lock-up could occur.
The software installation will be provided to customers at no cost. Dealers were notified about the recall on March 6, with customer notifications set to commence on April 21.
Vehicle owners affected by the recall will receive notification through mail, and dealerships will update the transmission control module monitoring software.
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