Horn
Pressa 
on the steering wheel pad
to sound the horn.
See also:
Store a Name Tag for Speed Dialing
1. Push . System responds:
“OnStar ready.” 2. Say “Store.” System responds:
“Please say the number you would like to store.” 3. Say the entire number without pausing. System responds:
...
Transferring a Call
Audio can be transferred between the Bluetooth system and the cell phone.
The cell phone must be paired and connected with the Bluetooth system before
a call can be transferred. The connection proc ...
Noise, Ride & Handling
A defining attribute of GM's latest crossovers is improved noise insulation.
Road and wind noise are hushed, leaving the cabin exceptionally quiet — at least
until you hit a bump. The suspension ...