Air Vents
Use the louvers located on the air vents to change the direction of the airflow.
To open a vent, move the thumbwheel to | . To close the vent, move the thumbwheel to 
.
Operation Tips
► Keep all outlets open whenever possible for best system performance. ► Keep the paths under all seats clear of objects to help circulate the air inside the vehicle more effectively. ► Use of non-GM approved hood deflectors can adversely affect the performance of the systemSee also:
Steering Wheel Controls
For vehicles with audio steering wheel controls, some audio controls can be adjusted at the steering wheel.
(Push to Talk): For vehicles with a Bluetooth, OnStar, or navigation system, press to in ...
Dual Tone Multi-Frequency
(DTMF) Tones
The Bluetooth system can send
numbers and the numbers stored as
name tags during a call. You can
use this feature when calling a
menu-driven phone system.
Account numbers can also be
stored ...
Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire
when tested under controlled conditions on a specified government test course. For
example, a tire graded 150 would w ...