OnStar®
If the vehicle is equipped with an active OnStar system, that system may also record data in crash or near crash-like situations. The OnStar Terms and Conditions provides information on data collection and use and is available in the OnStar glove box kit, at www.onstar.com (U.S.) or www.onstar.ca (Canada), or by pressing the 
button and speaking to an advisor.
See also:
Fuel Gauge
When the ignition is on, the fuel gauge shows about how much fuel is left in the tank.
An arrow on the fuel gauge indicates the side of the vehicle the fuel door is on.
The FUEL LEVEL LOW message ...
Rear Seats
Rear Seat Pass-Through Door
Your vehicle has a pass-through door that provides
access to the trunk from the rear seats. See “Rear Seat
Pass-Through Door” under Trunk. ...
Ending a Call
Turn the Menu knob to select Hang
Up, then press SELECT. ...