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:

    Tire Sidewall Labeling
    Useful information about a tire is molded into the sidewall. The examples show a typical passenger and light truck tire sidewall. Passenger (P-Metric) Tire (A) Tire Size: The tire size code is a c ...

    Exterior
    The regular-length Savana rides a 135-inch wheelbase and measures 218.8 inches long, and extended-length models have a 155-inch wheelbase and stretch to 238.8 inches overall. These vans are consid ...

    Floor Mats
    WARNING If a floor mat is the wrong size or is not properly installed, it can interfere with the pedals. Interference with the pedals can cause unintended acceleration and/or increased stopping dist ...