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:

    USB-Supported Devices
    • USB flash drive • Portable USB hard drive • Fifth generation or later iPod • iPod nano • iPod touch • iPod classic Not all iPods and USB drives are compatible with the USB port. M ...

    Dolly Towing (Front-Wheel-Drive Vehicles Only)
    To tow a front-wheel-drive vehicle from the front with two wheels on the ground: 1. Put the front wheels on a dolly. 2. Move the shift lever to P (Park). 3. Set the parking brake. 4. Clamp the s ...

    Sensors
    The solar sensor, located in the defrost grille in the middle of the instrument panel, monitors the solar heat. Do not cover the solar sensor or the system will not work properly. The interior te ...