See also:

Engine Oil Life System
The engine oil life system calculates engine oil life based on vehicle use and displays a DIC message when it is necessary to change the engine oil and filter. The oil life system should be rese ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

Vehicle Information Menu Items
Press MENU on the turn signal lever until the Vehicle Information Menu is displayed. Use w / x to scroll through the following menu items: Unit Tire Pressure Remaining Oil Life Battery Vol ...