
Four-Wheel Drive
If the vehicle has four-wheel drive, the engine’s driving
power can be sent to all four wheels for extra traction.
Read the following before using four-wheel drive,
to become familiar with its operation. You should use
Two-Wheel High for most normal driving conditions.
Notice:Driving on clean, dry pavement in
Four-Wheel-Drive High or Four-Wheel-Drive Low for
an extended period of time may cause premature
wear on your vehicle’s powertrain. Do not drive on
clean, dry pavement in Four-Wheel-Drive High or
Four-Wheel-Drive Low for extended periods of time.
Notice:If you continually drive your vehicle with
the transfer case in AUTO or Four-Wheel Drive, you
could shorten the life of the transfer case or the
Four-Wheel Drive system. The selector switch
should be left in Two-Wheel Drive High mode. Only
use AUTO and Four-Wheel Drive when you need
extra traction such as in wet or slippery road
conditions.
Automatic Transfer Case
If the vehicle has four-wheel drive, the transfer case
knob is located to the right of the steering wheel on the
instrument panel.
Use this knob to shift into
and out of four-wheel
drive.
2
m(Two-Wheel High):This setting is for driving in
most street and highway situations. The front axle is not
engaged in two-wheel drive. This provides the best
fuel economy.
2-30

OnStar Virtual Advisor
OnStar Virtual Advisor is a feature of OnStar
Hands-Free Calling that uses minutes to access
location-based weather, local traffic reports, and
stock quotes. Press the phone button and give a
few simple voice commands to browse through the
various topics. See the OnStar Owner’s Guide for
more information. This feature is only available in the
continental U.S.
OnStar Steering Wheel Controls
This vehicle may have a Talk/Mute button that can
be used to interact with OnStar Hands-Free Calling.
SeeAudio Steering Wheel Controls on page 3-109for
more information.
On some vehicles, the mute button can be used to dial
numbers into voice mail systems, or to dial phone
extensions. See the OnStar Owner’s Guide for more
information.
How OnStar Service Works
The OnStar system can record and transmit vehicle
information. This information is automatically sent to an
OnStar Call Center when the OnStar button is pressed,
the emergency button is pressed, or if the airbags or
AACN system deploy. This information usually includes
the vehicle’s GPS location and, in the event of a crash,
additional information regarding the crash that the vehicle
was involved in (e.g. the direction from which the vehicle
was hit). When the Virtual Advisor feature of OnStar
Hands-Free Calling is used, the vehicle also sends
OnStar the vehicle’s GPS location so they can provide
services where it is located.
OnStar service cannot work unless the vehicle is in a
place where OnStar has an agreement with a wireless
service provider for service in that area. OnStar service
also cannot work unless the vehicle is in a place where
the wireless service provider OnStar has hired for that
area has coverage, network capacity and reception when
the service is needed, and technology that is compatible
with the OnStar service. Not all services are available
everywhere, particularly in remote or enclosed areas, or
at all times.
2-47

Security Light...............................................3-44
Cruise Control Light......................................3-44
Reduced Engine Power Light.........................3-44
Highbeam On Light.......................................3-45
Service Four-Wheel Drive Warning Light..........3-45
Check Gages Warning Light...........................3-45
Gate Ajar Light.............................................3-46
Fuel Gage...................................................3-46
Low Fuel Warning Light.................................3-47
Check Gas Cap Light....................................3-47
Driver Information Center (DIC).......................3-47
DIC Operation and Displays...........................3-48
DIC Warnings and Messages.........................3-51
DIC Vehicle Customization.............................3-56Audio System(s).............................................3-62
Setting the Clock..........................................3-63
Radio(s)......................................................3-64
Using an MP3..............................................3-80
XM Radio Messages.....................................3-84
Navigation/Radio System...............................3-85
Bluetooth
®...................................................3-85
Rear Seat Entertainment (RSE) System...........3-96
Rear Seat Audio (RSA)................................3-108
Theft-Deterrent Feature................................3-109
Audio Steering Wheel Controls......................3-109
Radio Reception.........................................3-110
Fixed Mast Antenna....................................3-111
XM™ Satellite Radio Antenna System............3-111
Chime Level Adjustment...............................3-111
Section 3 Instrument Panel
3-2

The main components of the instrument panel are the following:
A.Headlamps on page 3-13.
B. Air Outlets. SeeOutlet Adjustment on page 3-26.
C.Turn Signal/Multifunction Lever on page 3-7.
D. OnStar
®andAudio Steering Wheel Controls on
page 3-109(If Equipped).
E.Instrument Panel Cluster on page 3-29.
F.Ignition Positions on page 2-22.
G.Audio Steering Wheel Controls on page 3-109
(If Equipped).
H. Transfer Case Controls. See “Automatic Transfer
Case” underFour-Wheel Drive on page 2-30.
I. Rear Window Washer/Wiper. SeeWindshield
Washer on page 3-9.
J.Audio System(s) on page 3-62.
K.Dual Climate Control System on page 3-20.
L.Dome Lamp Override on page 3-17.
M.Fog Lamps on page 3-16(If Equipped).
Instrument Panel Brightness on page 3-16.N.Hood Release on page 5-11.
O. Driver Information Center (DIC) Steering Wheel
Controls (If Equipped). SeeDriver Information
Center (DIC) on page 3-47.
P. Ashtray. SeeAshtray(s) and Cigarette Lighter on
page 3-19.
Q. Shift Lever and StabiliTrak
®Button. SeeShifting
Into Park on page 2-35andStabiliTrak®System
on page 4-6.
R. Lighter. SeeAshtray(s) and Cigarette Lighter on
page 3-19.
S.Accessory Power Outlet(s) on page 3-19.
T. Rear Window Defogger. See “Rear Window
Defogger” underDual Climate Control System on
page 3-20andDual Automatic Climate Control
System on page 3-22.
U.Glove Box on page 2-53.
3-5