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:

    Customer Satisfaction Procedure
    Your satisfaction and goodwill are important to your dealer and to Buick. Normally, any concerns with the sales transaction or the operation of your vehicle will be resolved by your GM dealer’s ...

    StabiliTrak® OFF Light
    This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. This light comes on when the StabiliTrak system is turned off. If StabiliTrak is ...

    Audio Output
    Audio from the DVD player or auxiliary inputs may be heard through the following possible sources: • Wireless Headphones • Vehicle Speakers • Vehicle wired headphone jacks on the Rear Sea ...