Horn
Pressa 
on the steering wheel pad
to sound the horn.
See also:
TTY Users
OnStar has the ability to communicate to the deaf, hard&-ofhearing, or speech&-impaired
customers while in the vehicle. The available dealer&-installed TTY system can provide
in-vehicl ...
Operation
Radio with CD, Radio with CD/USB Similar
Radio with CD, DVD, and USB Port
The vehicle may have one of these radios as its audio system. ...
Engine Oil Pressure Light
WARNING
Do not keep driving if the oil pressure is low. The engine can become so hot that it catches fire.
Someone could be burned. Check the oil as soon as possible and have the vehicle serviced.
...