Automatic Transmission Operation
There are several different positions for your shift lever.
PARK (P):This position locks your rear wheels. It is
the best position to use when you start your engine
because your vehicle cannot move easily.
{CAUTION:
It is dangerous to get out of your vehicle if the
shift lever is not fully in PARK (P) with the
parking brake rmly set. Your vehicle can roll.
Do not leave your 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 your vehicle will not move, even when
you are on fairly level ground, always set your
parking brake and move the shift lever to
PARK (P). SeeShifting Into PARK (P) on
page 2-29. If you are pulling a trailer, see
Towing a Trailer on page 4-28.
Make sure the shift lever is fully in PARK (P) before
starting the engine. Your vehicle has an automatic
transmission shift lock control system. You must fully
apply your regular brakes before you can shift from
PARK (P) with the ignition in RUN.
2-24
If you cannot shift out of PARK (P), ease pressure on
the shift lever and push the shift lever all the way
into PARK (P) as you maintain brake application. Then
move the shift lever into another gear. SeeShifting
Out of PARK (P) on page 2-30.
REVERSE (R):Use this gear to back up.
Notice:Shifting to REVERSE (R) while your vehicle
is moving forward could damage the transmission.
The repairs would not be covered by your warranty.
Shift to REVERSE (R) only after your vehicle is
stopped.
To rock your vehicle back and forth to get out of snow,
ice or sand without damaging your transmission,
seeIf Your Vehicle is Stuck in Sand, Mud, Ice, or Snow
on page 4-19.
NEUTRAL (N):In this position, your engine does not
connect with the wheels. To restart when you are
already moving, use NEUTRAL (N) only. Also, use
NEUTRAL (N) when your vehicle is being towed.
{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, your
vehicle could move very rapidly. You could
lose control and hit people or objects. Do not
shift into a drive gear while your engine is
running at high speed.
Notice:Shifting out of PARK (P) or NEUTRAL (N)
with the engine running at high speed may damage
the transmission. The repairs would not be
covered by your warranty. Be sure the engine is not
running at high speed when shifting your vehicle.
2-25
DRIVE (D):This position is for normal driving. It
provides the best fuel economy for your vehicle. If you
need more power for passing, and you are:
•Going less than about 35 mph (55 km/h), push your
accelerator pedal about halfway down.
•Going about 35 mph (55 km/h) or more, push the
accelerator all the way down.
You will shift down to the next gear and have more
power.
Downshifting the transmission in slippery road conditions
could result in skidding, see “Skidding” underLoss of
Control on page 4-11.
THIRD (3):This position is also used for normal driving.
However it reduces vehicle speed more than DRIVE (D)
without using your brakes. You might choose
THIRD (3) instead of DRIVE (D) when driving on hilly,
winding roads, when towing a trailer, so there is
less shifting between gears and when going down a
steep hill.
You should use THIRD (3) (or, as you need to, a lower
gear) when towing a trailer to minimize heat build-up
and extend the life of your transmission.SECOND (2):This position reduces vehicle speed even
more than THIRD (3) without using your brakes. You
can use SECOND (2) on hills. It can help control
your speed as you go down steep mountain roads, but
then you would also want to use your brakes off
and on.
You may use this feature for reducing torque to the rear
wheels when you are trying to start your vehicle from
a stop on slippery road surfaces.
FIRST (1): This position reduces vehicle speed even
more than SECOND (2) without using your brakes. You
can use it on very steep hills, or in deep snow or
mud. If the shift lever is put in FIRST (1) while the
vehicle is moving forward, the transmission will not shift
into first gear until the vehicle is going slowly enough.
Notice:Spinning the tires or holding the vehicle in
one place on a hill using only the accelerator
pedal may damage the transmission. The repair will
not be covered by your warranty. If you are stuck,
do not spin the tires. When stopping on a hill,
use the brakes to hold the vehicle in place.
2-26
Tow/Haul Mode
Tow/haul is designed to assist while your vehicle is
pulling a large or heavy load or trailer. Tow/haul is most
useful while pulling such a load in rolling terrain, in
stop-and-go traffic, or when you need improved
low-speed control, such as when parking. The purpose
of the tow/haul mode is to:
•Reduce the frequency and improve the predictability
of transmission shifts,
•provide the same solid shift feel when pulling a
heavy load as when the vehicle is unloaded,
•improve control of vehicle speed while requiring
less throttle pedal activity.
Press this button located
to the right of the steering
wheel on the instrument
panel to turn tow/haul
mode on and off.While activated, the
indicator light on the
instrument panel will
be on.
Tow/haul mode will turn off automatically when the
ignition is turned off. SeeTow/Haul Mode Light
on page 3-43.
Tow/haul is most effective when the vehicle and trailer
combined weight is at least 75 percent of the vehicle’s
Gross Combined Weight Rating (GCWR). See “Weight
of the Trailer” later in this section.
Driving with tow/haul activated without a heavy load will
cause reduced fuel economy and unpleasant engine
and transmission driving characteristics, but will
not cause damage.
2-27
Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-6
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-9
Flash-to-Pass.................................................3-9
Windshield Wipers..........................................3-9
Windshield Washer.......................................3-10
Cruise Control..............................................3-11
Exterior Lamps.............................................3-14
Headlamps on Reminder................................3-15
Daytime Running Lamps (DRL).......................3-15
Automatic Headlamp System..........................3-16
Instrument Panel Brightness...........................3-16
Dome Lamps...............................................3-17
Dome Lamp Override....................................3-17
Entry/Exit Lighting.........................................3-17
Reading Lamps............................................3-17
Electric Power Management...........................3-17
Battery Run-Down Protection..........................3-18
Accessory Power Outlet(s).............................3-18
Ashtray(s) and Cigarette Lighter......................3-19Climate Controls............................................3-19
Climate Control System.................................3-19
Outlet Adjustment.........................................3-22
Rear Heating System....................................3-22
Rear Air Conditioning and Heating System.......3-23
Warning Lights, Gages, and Indicators............3-25
Instrument Panel Cluster................................3-26
Speedometer and Odometer...........................3-27
Trip Odometer..............................................3-27
Safety Belt Reminders...................................3-28
Airbag Readiness Light..................................3-29
Airbag Off Light............................................3-30
Passenger Airbag Status Indicator...................3-31
Charging System Light..................................3-33
Voltmeter Gage............................................3-34
Brake System Warning Light..........................3-34
Antilock Brake System Warning Light...............3-35
StabiliTrak
®Indicator Light..............................3-36
Engine Coolant Temperature Gage..................3-36
Tire Pressure Light.......................................3-37
Malfunction Indicator Lamp.............................3-38
Oil Pressure Gage........................................3-41
Oil Pressure Light.........................................3-42
Security Light...............................................3-42
Cruise Control Light......................................3-42
Section 3 Instrument Panel
3-1
Highbeam On Light.......................................3-43
Tow/Haul Mode Light....................................3-43
Fuel Gage...................................................3-43
Driver Information Center (DIC).......................3-44
DIC Operation and Displays...........................3-45
DIC Compass..............................................3-50
DIC Warnings and Messages.........................3-52
DIC Vehicle Customization.............................3-60Audio System(s).............................................3-66
Setting the Clock..........................................3-68
Radio(s)......................................................3-70
Using an MP3..............................................3-81
Theft-Deterrent Feature..................................3-86
Audio Steering Wheel Controls.......................3-87
Radio Reception...........................................3-88
Fixed Mast Antenna......................................3-88
Section 3 Instrument Panel
3-2
The main components of the instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on page 3-22.
B. Driver Information Center Buttons. SeeDriver
Information Center (DIC) on page 3-44.
C. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-7.
D. Hazard Warning Flasher Button. SeeHazard
Warning Flashers on page 3-6.
E. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-26.
F. Shift Lever. SeeStarting the Engine on page 2-21.
G. Climate Control System. SeeClimate Control System
on page 3-19.
H. Audio System(s). SeeAudio System(s) on
page 3-66.
I. Exterior Lamp Controls. SeeExterior Lamps on
page 3-14.
J. Instrument Panel Brightness Control. SeeInstrument
Panel Brightness on page 3-16.
K. Cruise Control Buttons. SeeCruise Control on
page 3-11. Fast Idle System (If Equipped). See
DURAMAX
®Diesel Manual for more information.L. Tilt Lever. SeeTilt Wheel on page 3-6.
M. Horn. SeeHorn on page 3-6.
N. Audio Steering Wheel Controls. SeeAudio Steering
Wheel Controls on page 3-87.
O. Tow/Haul Mode Button. See “Tow/Haul Mode” under
Towing a Trailer on page 4-28.
P. Accessory Power Outlets/Cigarette Lighter. See
Accessory Power Outlet(s) on page 3-18and
Ashtray(s) and Cigarette Lighter on page 3-19.
Q. StabiliTrak
®Button (If Equipped). SeeStabiliTrak®
System on page 4-5.
R. Airbag Off Switch. SeeAirbag Off Switch on
page 1-66.
S. Storage Compartment. SeeStorage Areas on
page 2-35.
T. Passenger Airbag Status Indicator. SeePassenger
Airbag Status Indicator on page 3-31.
U. Rear Heating System (If Equipped). SeeRear
Heating System on page 3-22.
3-5
Hazard Warning Flashers
The hazard warning flashers warn others. They also let
the police and other emergency vehicles know you
have a problem.
The hazard warning
flasher button is located on
top of the steering
column.
Press the button to make the front and rear turn signal
lamps flash on and off. Press the button again to
turn the flashers off.
The hazard warning flashers work no matter what
ignition position the key is in, and even if the key is not
in the ignition.
When the hazard warning flashers are on, your vehicle’s
turn signals will not work.
Other Warning Devices
If you carry reflective triangles, you can set them up at
the side of the road about 300 feet (100 m) behind
your vehicle.
Horn
Press the horn symbol in the middle of the steering
wheel to sound the horn.
Tilt Wheel
For vehicles with a tilt steering wheel, it allows you to
lower or raise the steering wheel to give your legs more
room when entering or exiting the vehicle. Do not
adjust the steering wheel while driving.
The lever is located on the lower left side of the steering
column.
3-6