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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    Overview
    The Buick Rendezvous, introduced in the spring of 2001 as a 2002 model year vehicle and produced through the present, is a sport utility vehicle produced by the Buick division of General Motors. ...

    Recommended Fuel
    If the vehicle has a 2.4L L4 engine (VIN Code C), use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly r ...

    Manual Operation
    (Power): Press to turn the fan off or on. (Fan Control): Press to increase or decrease the fan speed. The fan speed setting appears on the main display. Pressing either button cancels au ...