See also:

Liftgate Release
To unlock the liftgate, use the power door lock switch or the remote keyless entry transmitter. The liftglass will also unlock when the liftgate is unlocked. Press the button on the liftglass to op ...

Sunroof
For vehicles with a sunroof, the sunroof only operates when the ignition is in ON/RUN or ACC/ ACCESSORY, or in Retained Accessory Power (RAP). See Retained Accessory Power (RAP)  for more i ...

Automatic Crash Response
In a crash, built in sensors can automatically alert an OnStar advisor who is immediately connected to the vehicle to see if you need help. ...