Powertrain
Transport Canada recall 2024637 · manufacturer campaign N242454440
24 October 2024
Transport Canada lists: Escalade 2021–2022 · Silverado HD 2020–2022 · Suburban 2021–2022 · Tahoe 2021–2022 · and 3 more
What is wrong
Over time, the transmission control valve could wear and lose pressure. If this happens, the transmission could shift harshly and could cause the rear wheels to lock up. Note: This recall only affects vehicles equipped with a diesel engine.
Why it matters
Rear wheels that lock suddenly could cause a loss of control and increase the risk of a crash.
What the dealer will do
General Motors will notify owners by mail and advise you to take your vehicle to a dealership to update the transmission control module software to detect excess wear in advance of a wheel lock up. If detected, a service engine light would turn on, a message would display in the instrument panel and the vehicle would be limited to fifth gear.