Diagnostics

OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring System. If a diagnostics check is needed between e-mails, push OnStar Additional Information, and an Advisor can run a check.

    See also:

    Responsive driving experience
    The '07 Yukon and Yukon Denali are built on GM's new full-size SUV platform, which incorporates features such as a new, fully boxed frame, coil-over-shock front suspension and rack-and-pinion stee ...

    What to Use
    When windshield washer fluid needs to be added, be sure to read the manufacturer's instructions before use. Use a fluid that has sufficient protection against freezing in an area where the temperature ...

    Rear Seats
    The rear seat has adjustable headrests in the outboard seating positions. The height of the headrest can be adjusted. Pull the headrest up to raise it. To lower the headrest, push down on the headres ...