
Ignition Positions
The ignition switch has
four different positions.
To shift out of P (Park), the ignition must be in ON/RUN
or ACC/ACCESSORY and the regular brake pedal must
be applied.
A (LOCK/OFF): This position locks the ignition. It also
locks the transmission on automatic transmission
vehicles. The key can be removed in LOCK/OFF.
On vehicles with an automatic transmission, the shift
lever must be in P (Park) to turn the ignition switch to
LOCK/OFF. The steering 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.
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.
B (ACC/ACCESSORY): This position lets things like
the radio and the windshield wipers operate while the
engine is off. Use this position if the vehicle must be
pushed or towed.
C (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. The
transmission is also unlocked in this position on
automatic transmission vehicles.
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.
3-27

To use this feature, do the following:1. Move the shift lever to M (Manual Mode).
2. Press the plus/minus buttons, located on the steering column shift lever, to select the desired
range of gears for the current driving conditions.
When M (Manual Mode) is selected a number displays
next to the M, indicating the current gear.
This number is the highest gear that can be used.
However, the vehicle can automatically shift to lower
gears as it adjusts to driving conditions. This means
that all gears below that number are available. When
5 (Fifth) is selected, 1 (First) through 5 (Fifth) gears are
automatically shifted by the vehicle, but 6 (Sixth) cannot
be used until the plus/minus button located on the
steering column lever is used to change to the gear. Grade Braking is not available when Range Selection
Mode is active. See
Tow/Haul Mode on page 3‑38.
While using Range Selection Mode, cruise control and
the Tow/Haul mode can be used.
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 the vehicle warranty. If you are stuck, do
not spin the tires. When stopping on a hill, use the
brakes to hold the vehicle in place.
Low Traction Mode
If the vehicle has the Hydra-Matic®6-Speed Automatic
Transmission, it has a Low Traction Mode that assists in
vehicle acceleration when road conditions are slippery,
such as with ice or snow. While the vehicle is at a stop,
select the second gear range using Range Selection
Mode. This will limit torque to the wheels after it detects
wheel slip, preventing the tires from spinning.
3-37

Grade Braking assists in maintaining desired
vehicle speeds when driving on downhill grades by
automatically implementing a shift schedule that utilizes
the engine and transmission to slow the vehicle. This
reduces wear on the braking system and increases
control of the vehicle. Grade Braking monitors vehicle
speed, acceleration, engine torque and brake pedal
usage. Using this information, it detects when the truck
is on a downhill grade and the driver desires to slow the
vehicle by pressing the brake.
Also seeTowing a Trailer
on page 5‑47for more
information.
Cruise Grade Braking (Hydra-Matic®
6-Speed Automatic Transmission)
Cruise Grade Braking assists when driving on a
downhill grade. It maintains vehicle speed by
automatically implementing a shift schedule that uses
the engine and the transmission to slow the vehicle.
Cruise Grade Braking operates while Cruise Control is
engaged in Tow/Haul mode to assist in maintaining
vehicle speed under loaded vehicle conditions.
It utilizes vehicle acceleration and deviation from
desired speed to determine the correct gear for the
operating condition. If vehicle speed is above the
desired speed the transmission will downshift to slow
the vehicle. If vehicle speed is near or below desired
speed the trans will upshift, allowing vehicle speed to
increase. While in the Range Select Mode (RSM) mode, Cruise
Grade Braking is not available.
See
Automatic Transmission Operation on page 3‑32.
Four-Wheel Drive (Two Speed
Automatic Transfer Case)
If the vehicle has four-wheel drive, you can send the
engine's driving power to all four wheels for extra
traction. Read the following before using four-wheel
drive.
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.
While driving on clean dry pavement and during tight
turns, you may experience a vibration in the steering
system.
The vehicle has StabiliTrak
®. Shifting into
Four-Wheel-Drive Low will turn Traction Control and
StabiliTrak
®off. See StabiliTrak®System on page 5‑6.
Front Axle
The front axle engages and disengages automatically
when you shift the transfer case. Some delay for the
axle to engage or disengage is normal.
3-39

4. Release the parking brake prior to moving thevehicle.
Notice: Shifting the transmission into gear before
the Four-Wheel Drive Low indicator light has
stopped flashing could damage the transfer case.
To help avoid damaging the vehicle, always wait for
the Four-Wheel Drive Low indicator light to stop
flashing before shifting the transmission into gear.
5. Start the engine and shift the transmission to the desired position.
Excessively shifting the transfer case into or out of the
different modes may cause the transfer case to enter
the shift protection mode. This will protect the transfer
case from possible damage and will only allow the
transfer case to respond to one shift per 10 seconds.
The transfer case may stay in this mode for up to
three minutes.Four-Wheel Drive (Single Speed
Automatic Transfer Case)
If the vehicle has four-wheel drive, you can send the
engine's driving power to all four wheels for extra
traction. Read the following before using four-wheel
drive.
Notice: Driving on clean, dry pavement in
Four-Wheel Drive High for an extended period of
time may cause premature wear on the vehicle's
powertrain. Do not drive on clean, dry pavement in
Four-Wheel Drive High for extended periods of time.
While driving on clean dry pavement and during tight
turns, you may experience a vibration in the steering
system.
Front Axle
The front axle engages and disengages automatically
when you shift the transfer case. Some delay for the
axle to engage or disengage is normal.
3-44

Section 4 Instrument Panel
Tire Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38
Malfunction Indicator Lamp . . . . . . . . . . . . . . . . . . . . 4-39
Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44
Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44
Cruise Control Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44
Highbeam On Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 4-46
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . 4-47
DIC Operation and Displays (With DIC Buttons) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47
DIC Operation and Displays (Without DIC Buttons) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55
DIC Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58
DIC Warnings and Messages . . . . . . . . . . . . . . . . . . 4-61
DIC Vehicle Customization (With DIC Buttons) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71 Audio System(s)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-80
Setting the Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-81
Radio(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-82
Using an MP3 (Radios with CD) . . . . . . . . . . . . . . . 4-99
Using an MP3 (Radios with CD and DVD) . . . . 4-106
XM Radio Messages . . . . . . . . . . . . . . . . . . . . . . . . . 4-113
Navigation/Radio System . . . . . . . . . . . . . . . . . . . . . 4-114
Bluetooth
®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-114
Rear Seat Entertainment (RSE) System . . . . . . 4-125
Rear Seat Audio (RSA) . . . . . . . . . . . . . . . . . . . . . . . 4-134
Theft-Deterrent Feature . . . . . . . . . . . . . . . . . . . . . . 4-135
Audio Steering Wheel Controls . . . . . . . . . . . . . . . 4-136
Radio Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-138
Rear Side Window Antenna . . . . . . . . . . . . . . . . . . 4-139
XM™ Satellite Radio Antenna System . . . . . . . . 4-139
4-2

Instrument Panel Overview
Hazard Warning Flashers
|(Hazard Warning Flasher):Press this button
located on top of the steering column, to make the front
and rear turn signal lamps flash on and off. This warns
others that you are having trouble. Press again to turn
the flashers off.
When the hazard warning flashers are on, the vehicle's
turn signals will not work.
Horn
To sound the horn, press the center pad on the steering
wheel.
Tilt Wheel
The tilt lever is located on the lower left side of the
steering column.
To adjust the steering wheel:
1. Hold the steering wheel and pull the lever.
2. Move the steering wheel to a comfortable position.
3. Release the lever to lock the wheel in place.
Do not adjust the steering wheel while driving.
4-3

Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
G:Turn and Lane Change Signals
5 3:Headlamp High/Low-Beam Changer
N:Windshield Wipers
L:Windshield Washer
5:Rear Wiper Delay
Z:Rear Wiper
=:Rear Wiper Wash
Flash-to-Pass.
Information for these features is on the pages following.
Turn and Lane-Change Signals
An arrow on the
instrument panel cluster
flashes in the direction of
the turn or lane change.
Move the lever all the way up or down to signal a turn.
Raise or lower the lever for less than one second
until the arrow starts to flash to signal a lane change.
This causes the turn signals to automatically flash
three times. It will flash six times if tow-haul mode is
active. Holding the turn signal lever for more than
one second will cause the turn signals to flash until
you release the lever.
The lever returns to its starting position whenever it is
released.
If after signaling a turn or a lane change the arrows
flash rapidly or do not come on, a signal bulb could be
burned out.
Have the bulbs replaced. If the bulb is not burned out,
check the fuse. See Fuses and Circuit Breakers
on
page 6‑118.
4-4

Cruise Control
{WARNING:
Cruise control can be dangerous where you
cannot drive safely at a steady speed. So, do not
use the cruise control on winding roads or in
heavy traffic.
Cruise control can be dangerous on slippery
roads. On such roads, fast changes in tire traction
can cause excessive wheel slip, and you could
lose control. Do not use cruise control on slippery
roads.
With cruise control, a speed of about 40 km/h (25 mph)
or more can be maintained without keeping your foot on
the accelerator. Cruise control does not work at speeds
below about 40 km/h (25 mph).
When the brakes are applied, cruise control is
turned off.
If the vehicle has StabiliTrak
®, and the system begins
to limit wheel spin, cruise control will automatically
disengage. See StabiliTrak
®Systemon page 5‑6.
When road conditions allow the cruise control to be
safely used again, it can be turned back on.
The cruise control buttons
are located on left side of
the steering wheel.
I(On/Off): Turns the system on or off. The indicator
light is on when cruise control is on and turns off when
cruise control is off.
+ RES (Resume/Accelerate): Press briefly to make the
vehicle resume to a previously set speed, or press and
hold to accelerate.
SET −(Set/Coast): Press to set the speed and activate
cruise control or make the vehicle decelerate.
[(Cancel): Press to disengage cruise control without
erasing the set speed from memory.
4-8