Issue: 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. Safety Risk: Rear wheels that lock suddenly could cause a loss of control and increase the risk of a crash. Corrective Actions: 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.

2024637 · 52,309 units in campaign · Transport Canada

Applies only if the manufacturer confirms your VIN · repair by an authorized dealer

Issue: On certain trucks, water could leak into the exterior tailgate switch. As a result, the tailgate could unlatch and open unexpectedly while parked. If this happens, cargo that is not secured could fall out of the truck bed and onto the road when the vehicle is moving. Note: This recall only affects trucks equipped with a power-locking tailgate. Safety Risk: Cargo that falls from the truck bed could create a road hazard for others and increase the risk of a crash. Corrective Actions: General Motors will notify owners by mail and advise you to take your truck to a dealership to replace the exterior tailgate switch. To reduce the safety risk, General Motors recommends that you should inspect the tailgate to ensure it's closed and latched before driving.

2024061 · 249,132 units in campaign · Transport Canada

Applies only if the manufacturer confirms your VIN · repair by an authorized dealer

Issue: On certain trucks, the bolts that attach the brake pressure modulator valve (BPMV) assembly may not be properly tightened. As a result, water can enter the BPMV and cause a short circuit. Safety Risk: A short circuit can create the risk of a fire. Corrective Actions: General Motors will notify owners by mail and instruct you to take your truck to a dealer to replace the brake pressure modulator valve assembly. General Motors recommends that you should park your truck outside, and not in a garage or other structure, until the recall repairs are completed.

2021602 · 248 units in campaign · Transport Canada

Applies only if the manufacturer confirms your VIN · repair by an authorized dealer