†Service varies with conditions and location. Requires active service plan and paid AT&T data plan. See onstar.com for details and limitations.
†Canyon’s 7700-lb rating requires 2WD Crew Cab model with available Duramax 2.8L I-4 Diesel engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.
†Horsepower: Available. Requires 3.6L V6 engine.
†Extra Cost Color.