Horn
Pressa 
on the steering wheel pad
to sound the horn.
See also:
How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is changed so that the system can calculate
the next engine oil change. To reset the system:
1. Turn the ignition to ON/RUN, with the engine off.
2. Press ...
Questions and Answers About Safety Belts
Q: Will I be trapped in the vehicle after a crash if I am wearing a safety belt?
A: You could be — whether you are wearing a safety belt or not.
Your chance of being conscious during and after a c ...
Place a Call Using a Stored Number
1. Push . System responds:
“OnStar ready.” 2. Say “Call <name tag>.” System responds: “OK, calling <name tag>.” ...