Adjusting the Treble, Midrange, and Bass
1. Press the TONE button.
2. Select Treble, Midrange, or Bass.
3. Select the value.
Press the 
BACK button to go
back to the Tone Settings menu.
See also:
How to Change the Video Format when inthe Auxiliary Mode
The auxiliary input video format is preset to NTSC.
In some countries, the video format may be in
the PAL system. To change the video format,
perform the following:
1. Press the display menu b ...
Using Voice Commands
During a Planned Route
Cancel Route
1. Push . System responds:
“OnStar ready,” then a tone. Say
“Cancel route.” System
responds: “Would you like to
cancel route directions to your
destination?”.
2. Sa ...
Climate Control Systems
The heating, cooling, defrosting, and ventilation for the vehicle can be controlled
with this system.
A. Temperature Control
B. Air Delivery Modes
C. Fan Control
D. Recirculation
E. Air C ...