Horn
Pressa 
on the steering wheel pad
to sound the horn.
See also:
Front Seats
The vehicle's front seats have head restraints in the outboard seating positions.
WARNING
With head restraints that are not installed and adjusted properly, there is a
greater chance that occu ...
Air Vents
Use the slider switch in the center of the outlet, to change the direction of the airflow. Use the thumbwheel near the outlet to control the amount of airflow or to shut off the airflow.
Keep all out ...
Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment on page 9‑112. Added electrical equipment ma ...