Engine Oil Additives
Do not add anything to the oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M are all you will need for good performance and engine protection.
See also:
Infotainment System Menus
Tone Settings
To access the tone settings, press
the Home Page Tone button or the
TONE button on the faceplate.
Use the tone settings to adjust the
following features:
• Setting the tone
â ...
Maintenance I
• Change engine oil and filter. See Engine Oil. An Emission Control Service.
• Engine coolant level check. See Engine Coolant
(4.6L Engine) or Engine Coolant
(3.9L Engine).
• Windshield wa ...
Navigation
OnStar navigation requires the
Directions and Connections
service plan.
Push to receive directions or
have them sent to the vehicle
navigation screen. Destinations can
also be forwarded to ...
