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:

    Total Weight on the Vehicle's Tires
    Inflate the vehicle's tires to the upper limit for cold tires. These numbers can be found on the Certification label or see Vehicle Load Limits. Do not go over the GVW limit for the vehicl ...

    Capacities and Specifications
    The following approximate capacities are given in metric and English conversions. See Recommended Fluids and Lubricants for more information. Engine Specifications ...

    Steering Wheel Adjustment
    Push the control up or down to tilt the steering wheel up or down. To set the memory position, see Vehicle Personalization  . ...