Horn
Pressa 
on the steering wheel pad
to sound the horn.
See also:
Towing the Vehicle From the Rear
Notice: Towing the vehicle from the rear could damage it. Also, repairs would not be covered by the vehicle warranty. Never have the vehicle towed from the rear.
Do not tow the vehicle from the r ...
Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnS ...
Exit Lighting
The interior lamps come on when the key is removed from the ignition.
They turn off automatically in 20 seconds. The lights do not come on if the dome override button is pressed in. ...