General Motors has announced a recall affecting 90,081 Cadillac and Chevrolet Camaro vehicles. The issue centers on a potential problem with their 10-speed transmissions, which could lead to front-wheel lock-up.
The affected Cadillac models include the 2019-2020 CT6, and the 2020-2021 CT4 and CT5. The recall also covers the 2020-2022 Chevrolet Camaro.
According to reports filed with the National Highway Traffic Safety Administration (NHTSA), a GM brand quality manager first brought the issue to light on September 27, 2024, through GM’s “Speak Up For Safety” program. The program allows employees to anonymously report safety concerns.
The manager reported that a 2021 Cadillac CT5 experienced front-wheel lock-up while driving. The vehicle subsequently shifted into neutral and required towing for repairs. The engine and front differential needed replacement. GM had already investigated and determined that excessive wear in a transmission control valve caused issues, leading in rare instances to a lock-up of under 150 milliseconds. While it didn’t cause drivers to lose control, and with no accidents or injuries, no action was taken at the time.
On November 21, 2024, GM launched a formal investigation, which required the collection of field data. By December 18, the investigation had identified 115 field reports possibly related to the issue. On February 27, 2025, the decision was made to issue a recall.
Rather than immediately replacing parts, GM is implementing a software solution. The new transmission control software will monitor valve performance and detect excessive wear. This allows the system to identify a potential problem approximately 10,000 miles ahead of any lock-up. In those cases, the transmission will be limited to fifth gear, preventing downshifts from eighth gear that could cause damage. A check engine light will illuminate, and a reduced propulsion message will be displayed, putting the car in limp mode. Owners will then need to take their vehicle in for repair.
Customers will receive these repairs without charge. Dealers were notified on March 6, and customer notifications are expected to begin on April 21.
Source: NHTSA
