Starting the Engine

When first starting the vehicle, the engine idle speed will be elevated to allow the catalytic converter, an emissions control device, to quickly reach operating temperature.

After approximately 20 seconds, the engine will begin to transition to its normal, quieter idle speed, which can vary depending on the temperature. This is normal operation.

    See also:

    Engine Compartment Overview
    A. Engine Air Cleaner/Filter. B. Power Steering Reservoir and Cap (Under Engine Cover). See Power Steering Fluid. C. Engine Oil Fill Cap. See Engine Oil. D. Engine Oil Dipstick (Out of ...

    Trailer Towing (Except CTS-V and Coupe)
    Before pulling a trailer, there are three important considerations that have to do with weight: - The weight of the trailer. - The weight of the trailer tongue. - The total weight on the vehicl ...

    Battery
    The battery is in the trunk, behind the trim panel, on the passenger side of the vehicle. Refer to the replacement number shown on the original battery label when a new battery is needed. W ...