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:
Radio Settings
Press the Config button on the Home Page or the CONFIG button on the faceplate
to enter the menu options. Turn the TUNE/MENU knob or touch-tap the scroll bar to
scroll through the available option ...
Storing Name Tags
The system can store up to thirty phone numbers as
name tags that are shared between the Bluetooth and
OnStar systems.
The system uses the following commands to store and
retrieve phone numbers ...
Additional Maintenance and Care
Your vehicle is an important investment and caring for it properly may help to
avoid future costly repairs. To maintain vehicle performance, additional maintenance
services may be required. It is ...