
Ignition Positions
The ignition switch is
located on the center
console, and has
four different positions.
In order to shift out of P (Park), turn the ignition to
ON/RUN and apply the brake pedal.
Notice:Using a tool to force the key to turn in the
ignition could cause damage to the switch or break
the key. Use the correct key, make sure it is all the
way in, and turn it only with your hand. If the key
cannot be turned by hand, see your dealer/retailer.
9(LOCK/OFF):This position locks the ignition and
transmission. The key can only be removed when
the ignition switch is in LOCK/OFF and the vehicle
has power.The steering wheel can bind with the wheels turned off
center. If this happens, move the steering wheel from
right to left while turning the key to ACC/ACCESSORY.
If this doesn’t work, then the vehicle needs service.
ACC (ACC/ACCESSORY):This position can be used
to operate the electrical accessories.
R(ON/RUN):This position can be used to operate the
electrical accessories and to display some instrument
panel cluster warning and indicator lights. The switch
stays in this position when the engine is running.
If you leave the key in the ACC/ACCESSORY or
ON/RUN position with the engine off, the battery
could be drained. You may not be able to start the
vehicle if the battery is allowed to drain for an extended
period of time.
/(START):This position starts the engine. When
the engine starts, release the key. The ignition switch
returns to ON/RUN for driving.
A warning tone will sound when the driver door is
opened, the ignition is in ACC/ACCESSORY or
LOCK/OFF and the key is in the ignition.
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Active Fuel Management™
If the vehicle has a 5.3L V8 engine, it has Active Fuel
Management™. This system allows the engine to operate
on either all or half of its cylinders, depending on driving
conditions.
When less power is required, such as cruising at a
constant vehicle speed, the system will operate in the
half cylinder mode, allowing the vehicle to achieve better
fuel economy. When greater power is required, such
as accelerating from a stop, passing, or merging onto a
freeway, the system will maintain full-cylinder operation.
Automatic Transmission Operation
There are several different
positions for the gear shift
lever.P (Park):This position locks the rear wheels. It is the
best position to use when you start the engine because
the vehicle cannot move easily.
{CAUTION:
It is dangerous to get out of the vehicle if the shift
lever is not fully in P (Park) with the parking brake
rmly set. The vehicle can roll.
Do not leave the vehicle when the engine is
running unless you have to. If you have left the
engine running, the vehicle can move suddenly.
You or others could be injured. To be sure the
vehicle will not move, even when you are on fairly
level ground, always set the parking brake and
move the shift lever to P (Park). SeeShifting Into
Park on page 2-28. If you are pulling a trailer, see
Towing a Trailer on page 4-29.
Make sure the shift lever is fully in P (Park) before
starting the engine. The vehicle has an automatic
transmission shift lock control system. You have
to apply the brake pedal then press the shift
lever button before you can shift from P (Park)
when the ignition key is in ON/RUN.
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If you cannot shift out of P (Park), ease pressure on
the shift lever and push the shift lever all the way
into P (Park) as you maintain brake application.
Then press the shift lever button and move the shift
lever into another gear. SeeShifting Out of Park
on page 2-29.
R (Reverse):Use this gear to back up.
Notice:Shifting to R (Reverse) while the vehicle is
moving forward could damage the transmission.
The repairs would not be covered by the vehicle
warranty. Shift to R (Reverse) only after the vehicle
is stopped.
To rock the vehicle back and forth to get out of snow,
ice, or sand without damaging the transmission,
seeIf Your Vehicle is Stuck in Sand, Mud, Ice,
or Snow on page 4-20.
N (Neutral):In this position, the engine does not
connect with the wheels. To restart the engine when
the vehicle is already moving, use N (Neutral) only.
{CAUTION:
Shifting into a drive gear while the engine is
running at high speed is dangerous. Unless your
foot is rmly on the brake pedal, the vehicle could
move very rapidly. You could lose control and hit
people or objects. Do not shift into a drive gear
while the engine is running at high speed.
Notice:Shifting out of P (Park) or N (Neutral) with
the engine running at high speed may damage the
transmission. The repairs would not be covered
by the vehicle warranty. Be sure the engine is not
running at high speed when shifting the vehicle.
D (Drive):This position is for normal driving. It provides
the best fuel economy. If you need more power for
passing, and you are:
Going less than about 35 mph (55 km/h), push the
accelerator pedal about halfway down.
Going about 35 mph (55 km/h) or more, push the
accelerator all the way down.
The vehicle will shift down to the next gear and have
more power.
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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 3-97
for 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 vehicles 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 vehicles 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.
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Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Horn .............................................................3-6
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-6
Turn and Lane-Change Signals........................3-7
Headlamp High/Low-Beam Changer..................3-7
Flash-to-Pass.................................................3-8
Windshield Wipers..........................................3-8
Windshield Washer.........................................3-9
Rear Window Wiper/Washer.............................3-9
Headlamp Washer........................................3-10
Cruise Control..............................................3-10
Headlamps..................................................3-13
Headlamps on Reminder................................3-14
Daytime Running Lamps (DRL).......................3-14
Automatic Headlamp System..........................3-14
Fog Lamps ..................................................3-15
Instrument Panel Brightness...........................3-16
Dome Lamps ...............................................3-16
Dome Lamp Override....................................3-16
Entry Lighting...............................................3-16
Exit Lighting.................................................3-17
Reading Lamps............................................3-17Electric Power Management...........................3-17
Battery Run-Down Protection..........................3-18
Accessory Power Outlet(s).............................3-18
Climate Controls............................................3-19
Dual Automatic Climate Control System...........3-19
Outlet Adjustment.........................................3-23
Rear Climate Control System.........................3-23
Climate Controls Personalization.....................3-24
Warning Lights, Gages, and Indicators............3-24
Instrument Panel Cluster................................3-25
Speedometer and Odometer..........................
.3-26
Trip Odometer..............................................3-26
Tachometer.................................................3-26
Safety Belt Reminders...................................3-27
Airbag Readiness Light..................................3-28
Passenger Airbag Status Indicator...................3-29
Charging System Light..................................3-30
Voltmeter Gage............................................3-30
Brake System Warning Light..........................3-31
Antilock Brake System (ABS) Warning Light.....3-32
StabiliTrak
®Service Light...............................3-32
StabiliTrak®Indicator Light.............................3-33
Engine Coolant Temperature Gage..................3-33
Section 3 Instrument Panel
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Tire Pressure Light.......................................3-34
Malfunction Indicator Lamp.............................3-34
Oil Pressure Gage........................................3-37
Security Light...............................................3-38
Cruise Control Light......................................3-38
Reduced Engine Power Light.........................3-39
Highbeam On Light.......................................3-39
Service All-Wheel Drive Light.........................3-40
Check Gages Warning Light...........................3-40
Gate Ajar Light.............................................3-40
Fuel Gage...................................................3-41
Low Fuel Warning Light.................................3-41
Check Gas Cap Light....................................3-41
Driver Information Center (DIC).......................3-42
DIC Operation and Displays...........................3-42
DIC Warnings and Messages.........................3-45
DIC Vehicle Customization.............................3-51Audio System(s).............................................3-57
Setting the Clock..........................................3-57
Radio(s)......................................................3-58
Using an MP3..............................................3-68
XM Radio Messages.....................................3-72
Navigation/Radio System...............................3-74
Bluetooth
®...................................................3-74
Rear Seat Entertainment (RSE) System...........3-84
Rear Seat Audio (RSA).................................3-95
Theft-Deterrent Feature..................................3-97
Audio Steering Wheel Controls.......................3-97
Radio Reception...........................................3-98
Fixed Mast Antenna......................................3-99
XM™ Satellite Radio Antenna System.............3-99
Section 3 Instrument Panel
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The main components of the instrument panel are the following:
A.Outlet Adjustment on page 3-23.
B.Turn Signal/Multifunction Lever on page 3-6.
C.Audio Steering Wheel Controls on page 3-97.
D.Instrument Panel Cluster on page 3-25.
E.Windshield Wipers on page 3-8.
F.Hazard Warning Flashers on page 3-6orDriver
Information Center (DIC) on page 3-42.
G.Windshield Washer on page 3-9.
H.Instrument Panel Brightness on page 3-16.
I.Hood Release on page 5-11.
J.Dome Lamp Override on page 3-16.
K.Adjustable Throttle and Brake Pedal on page 2-22.L.Tilt Wheel on page 3-6.
M.Horn on page 3-6.
N.Audio System(s) on page 3-57.
O.Dual Automatic Climate Control System on
page 3-19.
P. Shift Lever. SeeAutomatic Transmission Operation
on page 2-24.
Q.Ignition Positions on page 2-20.
R.Parking Brake on page 2-27.
S.Accessory Power Outlet(s) on page 3-18.
T.Cupholders on page 2-43.
U.Glove Box on page 2-43.
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