See also:

Selecting the Right Engine Oil
Selecting the right engine oil depends on both the proper oil specification and viscosity grade. See Recommended Fluids and Lubricants. Specification Use and ask for licensed engine oils wit ...

How OnStar Service Works
Automatic Crash Response, Emergency Services, Crisis Assist, Stolen Vehicle Assistance, Vehicle Diagnostics, Remote Door Unlock, Roadside Assistance, Turn-by-Turn Navigation, and Hands-Free ...

Remote Lock/Unlock/Start
Select Remote Lock/Unlock/Start and the following will be displayed: - Unlock Feedback (Lights) - Locking Feedback - Door Unlock Options - Passive Door Lock - Passive Door Unlock - Memory Remo ...