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    Cadillac Sedans and Chevrolet Camaro Recalled for Transmission Damage

    The gearbox may cause the wheels to lock while the vehicle is in motion

    2020 Chevrolet Camaro LT1, front driving
    2020 Chevrolet Camaro
    Photo: Chevrolet

    General Motors is recalling more than 90,000 Cadillac CT4, CT5, and CT6 sedans and Chevrolet Camaro sports cars with a 10-speed automatic transmission because a fluid leak inside the gearbox could cause the wheels to lock while the vehicle is moving. This could cause the driver to lose control of the vehicle, increasing the risk of a crash.

    To fix the problem, Cadillac and Chevrolet dealers will provide a free software update that the automaker says will monitor the transmission for wear and damage.

    More On Car Recalls

    In documents provided by the National Highway Traffic Safety Administration, GM says it had previously investigated this problem and determined that it wasn’t serious enough to cause a loss of vehicle control. In addition, there had been no reports of crashes or injuries.

    Subsequent to that investigation, in September 2024 the driver of a 2021 Cadillac CT5 reported that both front tires locked while driving, and the vehicle subsequently went into neutral. It had to be towed away because of damage to both the engine and the front differential. 

    GM opened a new investigation in November 2024, which identified 115 reports of this lockup condition, including one crash. The lockup comes from wear inside the transmission, which occurs because of a fluid leak. One symptom that owners might notice is harsh gear shifts.

    Cadillac and Chevrolet Transmission Recall Details

    Vehicles recalled: 2019-2020 Cadillac CT6, 2020-2021 Cadillac CT4 and CT5, and 2020-2022 Chevrolet Camaro vehicles.

    The problem: A fluid leak may cause internal damage to the 10-speed automatic transmission in these vehicles. This could cause the wheels to momentarily lock, increasing the likelihood of a crash. 

    The fix: Cadillac and Chevrolet dealerships will provide a free software update designed to detect excessive wear to the transmission. If wear is determined, the vehicle will be limited to fifth gear as the top gear, and a service engine light will display in the instrument panel, prompting the owner to take the car in for service.

    How to contact the manufacturer: Owners may call Cadillac at 800-333-4223 or Chevrolet at 800-222-1020.

    NHTSA campaign number: 25V148. General Motor’s number for this recall is N242480630.

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    Jon Linkov

    Jon Linkov is the deputy auto editor at Consumer Reports. He has been with CR since 2002, covering varied automotive topics including buying and leasing, maintenance and repair, ownership, reliability, used cars, and electric vehicles. He manages CR’s lineup of special interest publications, hosts CR’s “Talking Cars” podcast, and writes and edits content for CR’s online and print products. An avid cyclist, Jon also enjoys driving his ’80s-era sports car and instructing at track days.