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:

    GM Mobility Reimbursement Program
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    Using the Re-dial Command
    1. Press and hold for two seconds. The system responds with “Ready” followed by a tone. 2. After the tone, say “Re-dial”. The system responds with “Re-dial using <phone name> ...

    Lock Sensor
    Lock Sensor When all doors are closed and the ignition is off, the vehicle can be locked by pressing this area on the door handle. This feature will be available for several minutes after ...