Engine Oil Additives/Engine Oil Flushes

Do not add anything to the oil.

The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection.

Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.

    See also:

    DIC Buttons
    The buttons are the trip/fuel, vehicle information, customization, and set/ reset buttons. The button functions are detailed in the following pages. (Trip/Fuel): Press this button to display the o ...

    Place a Call Using a Stored Number
    1. Push . System responds: “OnStar ready.” 2. Say “Call <name tag>.” System responds: “OK, calling <name tag>.” ...

    Finding a Station
    BAND: Press to switch between AM, FM, or XM. The selection displays. (Tune): Turn to select radio stations. SEEK and SEEK: Press to go to the previous or next station and stay there. To scan s ...