Emergency
With Automatic Crash Response, the built-in system can automatically connect to help in a crash even if you cannot ask for it.
Push 
to connect to an Emergency Advisor. GPS technology is used to identify
the vehicle location and can provide critical information to emergency
personnel. The Advisor is also trained to offer critical assistance in
emergency situations.
See also:
Electric Parking Brake Light
For vehicles with the Electric Parking Brake (EPB), this light should come
on briefly as the engine is started. If it does not come on, have the vehicle
serviced by your dealer.
The parking b ...
Retained Accessory Power (RAP)
The following vehicle accessories can be used for up to 10 minutes after the
engine is turned off:
Audio System
Power Windows
OnStar System (if equipped)
Sunroof (if equipped)
These fea ...
EPB Release
To release the EPB, place the ignition in the ON/RUN position, apply and
hold the brake pedal, and push down momentarily on the EPB switch. If you
attempt to release the EPB without the brake pedal ...