See also:

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 ...

Power Steering Fluid
See Engine Compartment Overview   for reservoir location. ...

Bluetooth Controls
Use the buttons located on the steering wheel to operate the in-vehicle Bluetooth system. See Steering Wheel Controls for more information. (Push To Talk): Press to answer incoming calls, con ...