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.

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    Vehicle Overview
    The 2011 GMC Yukon is the middle child among GM's full-size SUVs. Based on price and equipment, the Yukon sits squarely between the Chevrolet Tahoe and Cadillac Escalade. Four-wheel drive is avail ...

    Rocking the Vehicle to Get it Out
    Turn the steering wheel left and right to clear the area around the front wheels. Turn off any traction system. Shift back and forth between R (Reverse) and a forward gear, spinning the wheels as ...

    Rear Safety Belt Comfort Guides
    This vehicle may have rear shoulder belt comfort guides. If not, they are available through your dealer. The guides may provide added safety belt comfort for older children who have outgrown booster s ...