Horn
Press 
on the steering wheel
pad to sound the horn.
See also:
OnStar®
If the vehicle has OnStar and you subscribe to the
OnStar services, please refer to the OnStar Terms and
Conditions for information on data collection and use. ...
Dual Tone Multi-Frequency (DTMF) Tones
The in-vehicle Bluetooth system can send numbers and the numbers stored as name tags during a call.
Use this feature when calling a menu-driven phone system.
Account numbers can also be stored for u ...
Power Steering Fluid
See Engine Compartment Overview for reservoir location.
When to Check Power Steering Fluid
It is not necessary to regularly check power steering fluid unless a leak is suspected in the syste ...