At Least Once a Month

Tire Inflation Check

Visually inspect your vehicle’s tires and make sure they are inflated to the correct pressures.

Do not forget to check the spare tire.

Tire Wear Inspection

Tire rotation may be required for high mileage highway drivers prior to the Engine Oil Life System service notification. Check the tires for wear and, if necessary, rotate the tires.

    See also:

    How OnStar Service Works
    Push this blue button to connect to a specially trained OnStar Advisor to verify your account information and to answer questions. Push this red emergency button to get priority help from specially ...

    Fuel E85 (85% Ethanol)
    Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). For all other vehicles, use only the unleaded gasolin ...

    Steering Wheel Adjustment
    The lever is located on the left side of the steering column. To adjust the lever: 1. Hold the wheel and pull the lever toward you. 2. Move the steering wheel up or down into a comfortable ...