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:

    Key and Lock Messages
    REPLACE BATTERY IN REMOTE KEY This message displays when the battery in the Remote Keyless Entry (RKE) transmitter needs to be replaced. ...

    Transferring Service
    Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has changed, OnSta ...

    Rocking Your Vehicle to Get It Out
    Turn the steering wheel left and right to clear the area around the front wheels. For four-wheel-drive vehicles, shift into Four-Wheel High. For vehicles with StabiliTrak®, turn the traction control ...