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 the battery is discharged or disconnected.

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    Ride & Handling
    Whenever I approach a vehicle this large I bring along the expectation that it will be hard to maneuver. In the Yukon I was surprisingly sure of myself, even on the tightest city streets. Not only ...

    Steering Wheel Controls
    Steering Wheel Controls or : Press to change favorite radio stations, select tracks on a CD/DVD, or navigate tracks or folders on an iPod® or USB device. : Press to silence the vehicle speake ...

    Checking Coolant
    The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not ...