Starting the Vehicle Messages

FAST IDLE ON

If your vehicle has this feature, this message displays when the fast idle feature is on. See Fast Idle System on page 9‑31 for more information.

    See also:

    Under the Hood
    The Yukon Hybrid uses a two-mode hybrid system. The system augments the SUV's V-8 engine with two electric motors, both powered by a 300-volt battery pack. A cylinder-deactivation system cuts powe ...

    Vehicle and Power Issues
    OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if ...

    Clock
    To adjust the time and date: 1. Turn the ignition key to ACC/ACCESSORY or ON/RUN, then press to turn the radio on. 2. Press to display HR, MIN, MM, DD, YYYY (hour, minute, month, day, and year). ...