Fast Idle System

If the vehicle has this feature it is available only with cruise control.

The manual fast idle switch is operated using the cruise control buttons located on the left hand side of the steering wheel.

This system can be used to increase engine idle speed whenever the following conditions are met:
• The park brake is set.
• The brake pedal is not pressed.
• The vehicle must not be moving and the accelerator must not be pressed.

To control the fast idle:
• To enable the Fast Idle System, press and release the Cruise Control On/Off button and ensure that the switch LED is lit.
• Press and release the Cruise Control Set switch. Engine speed will be held at approximately 1200 RPM.

When the fast idle is active the Driver Information Center (DIC) will display “FAST IDLE ON.” One of the following actions will turn off the fast idle:
• Pressing the brake.
• Selecting the Cruise Control Cancel button.
• Releasing the Parking Brake.
• The transmission shift lever is moved out of P (Park) or N (Neutral).
• Selecting the Cruise Control On/ Off button when it was previously on.
• Pressing the Cruise Control Set switch a second time.
• Pressing the accelerator greater than a quarter of the down.
• Turning the ignition switch to the LOCK/OFF position.

    See also:

    Stopping and Resuming Playback
    To stop playing a DVD without turning off the system, press the button on the remote control, or press the softkey located under the or the tabs displayed on the radio. If the radio is sourced to ...

    Using ABS
    Do not pump the brakes. Just hold the brake pedal down firmly and let ABS work. You might hear the ABS pump or motor operating and feel the brake pedal pulsate, but this is normal. ...

    Customer Assistance Offices (U.S. and Canada)
    GMC encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail GMC, the letter should be addressed to: United States GMC Customer Assistance ...