OnStar Services

See also:

DIC Operation and Displays
The DIC comes on when the ignition is on. After a short delay the DIC will display the information that was last displayed before the engine was turned off. If a problem is detected, a warning m ...

Menu System
Controls The Menu knob, SELECT button, and BACK button are used to navigate the menu system. Menu Knob: Turn to: • Enter the menu system. • Highlight a menu option. • Select a value. ...

How to Add Coolant to the Coolant Surge Tank
Notice: This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged. If no problem is found, check to see if cool ...