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:

    Using Voice Commands During a Planned Route
    Cancel Route 1. Push . System responds: “OnStar ready,” then a tone. Say “Cancel route.” System responds: “Would you like to cancel route directions to your destination?”. 2. Sa ...

    Windshield Wiper/Washer
    The windshield wiper lever is located on the left side of the steering column. : Use for a single wiping cycle.   : Delays wiping cycle. : Slow wipes. : Fast wipes. : Turns the wiper ...

    Power Outlets
    The accessory power outlet can be used to plug in electrical equipment, such as a cell phone, an MP3 player, etc. This outlet is located under the armrest inside the center console storage. The vehi ...