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:

    Vehicle Data Recording and Privacy
    This GM vehicle has a number of sophisticated computers that record information about the vehicle’s performance and how it is driven. For example, the vehicle uses computer modules to monitor and ...

    Compass Messages
    CAL This message is displayed when the compass needs to be calibrated. See Compass. Three dashes will be displayed if the compass needs service. See your dealer for service. ...

    Towing the Vehicle
    Notice: To avoid damage, the disabled vehicle should be towed with all four wheels off the ground. Care must be taken with vehicles that have low ground clearance and/or special equipment. ...