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:
High-Beam On Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer for more
information. ...
Customization Button
(Customization): Press
the customization
button to access the VEHICLE SETTINGS menu
and customize the settings to your vehicle. ...
How OnStar® Service Works
In order to provide you with OnStar® services, your
vehicle’s OnStar® system has the capability of
recording and transmitting vehicle information.
This information is automatically sent to an ...