
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.
3-22

D (START):This is the position that 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.
Retained Accessory Power (RAP)
The following vehicle accessories can be used for up to
10 minutes after the engine is turned off:
.Audio System
.Power Windows
.OnStar®System (if equipped)
.Sunroof (if equipped)
These features work when the key is in ON/RUN or
ACC/ACCESSORY. Once the key is turned from ON/
RUN to LOCK/OFF, the windows and sunroof continue
to work up to 10 minutes until any door is opened. The
radio continues to work for up to 10 minutes or until the
driver door is opened.
Starting the Engine
If the vehicle has the DURAMAX®Diesel engine, see
the DURAMAX®Diesel manual for more information.
If the vehicle is a Two-mode Hybrid, see the Two-mode
Hybrid manual for more information.
Notice: Do not try to shift to P (Park) if the vehicle is
moving. If you do, you could damage the
transmission. Shift to P (Park) only when the vehicle
is stopped.
Move the shift lever to P (Park) or N (Neutral). The
engine will not start in any other position. To restart the
engine when the vehicle is already moving, use
N (Neutral) only.
3-23

How the System Works
URPA comes on automatically when the shift lever is
moved into R (Reverse). A single tone sounds to
indicate the system is working.
URPA operates only at speeds less than
5 mph (8 km/h).
An obstacle is indicated by audible beeps. The interval
between the beeps becomes shorter as the vehicle gets
closer to the obstacle. When the distance is less than
30 cm (12 in) the beeps are continuous.
To be detected, objects must be at least 25.4 cm (10 in)
off the ground and below tailgate level. Objects must
also be within 2.5 m (8 ft) from the rear bumper. This
distance may be less during warmer or humid weather.
The system can be
disabled by pressing the
rear park aid disable
button located next to the
radio.
The indicator light will come on and PARK ASSIST OFF
displays on the Driver Information Center (DIC) to
indicate that URPA is off, see DIC Warnings and
Messages on page 4‑63.
Notice: If you use URPA while the tailgate is
lowered, it may not detect an object behind your
vehicle, and you might back into the object and
damage your vehicle. Always verify the tailgate is
closed when using URPA or turn off URPA when
driving with the tailgate lowered.
3-61

Universal Home Remote
System
SeeRadio Frequency Statementon page 8‑18for
information regarding Part 15 of the Federal
Communications Commission (FCC) Rules and
RSS-210/211 of Industry Canada.
Universal Home Remote System
Operation (With Three Round LED)
This vehicle may have the Universal Home Remote
System. If there are three round Light Emitting Diode
(LED) indicator lights above the Universal Home
Remote buttons, follow the instructions below.
This system provides a way to replace up to three
remote control transmitters used to activate devices
such as garage door openers, security systems, and
home automation devices. Do not use this system with any garage door opener
that does not have the stop and reverse feature. This
includes any garage door opener model manufactured
before April 1, 1982.
Read the instructions completely before attempting to
program the transmitter. Because of the steps involved,
it may be helpful to have another person assist with
programming the transmitter.
Be sure to keep the original remote control transmitter
for use in other vehicles, as well as, for future
programming. Only the original remote control
transmitter is needed for Fixed Code programming. The
programmed buttons should be erased when the
vehicle is sold or the lease ends. See
“Erasing
Universal Home Remote Buttons” later in this section.
Park the vehicle outside of the garage when
programming a garage door. Be sure that people and
objects are clear of the garage door or gate that is
being programmed.
3-69

Section 4 Instrument Panel
Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46
Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46
Cruise Control Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46
Highbeam On Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46
Four-Wheel-Drive Light . . . . . . . . . . . . . . . . . . . . . . . . 4-47
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 4-48
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . .4-49
DIC Operation and Displays (With DIC Buttons) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49
DIC Operation and Displays (Without DIC Buttons) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56
DIC Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60
DIC Warnings and Messages . . . . . . . . . . . . . . . . . . 4-63
DIC Vehicle Customization (With DIC Buttons) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-73 Audio System(s)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-82
Setting the Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-82
Radio(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-85
Using an MP3 (Radios with CD) . . . . . . . . . . . . . . 4-105
Using an MP3 (Radios with CD and DVD) . . . . 4-112
XM Radio Messages . . . . . . . . . . . . . . . . . . . . . . . . . 4-120
Navigation/Radio System . . . . . . . . . . . . . . . . . . . . . 4-121
Bluetooth
®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-121
Rear Seat Entertainment (RSE) System . . . . . . 4-132
Rear Seat Audio (RSA) . . . . . . . . . . . . . . . . . . . . . . . 4-141
Theft-Deterrent Feature . . . . . . . . . . . . . . . . . . . . . . 4-143
Audio Steering Wheel Controls . . . . . . . . . . . . . . . 4-143
Radio Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-146
Fixed Mast Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . 4-147
XM™ Satellite Radio Antenna System . . . . . . . . 4-147
4-2

Turn Signal On Chime
If the turn signal is left on for more than 3/4 of a mile
(1.2 km), a chime sounds at each flash of the turn
signal, if the vehicle has a radio. The message TURN
SIGNAL ON will also appear in the Driver Information
Control (DIC). To turn the chime and message off, move
the turn signal lever to the off position.
Headlamp High/Low-Beam Changer
53(Headlamp High/Low Beam Changer): To
change the headlamps from low to high beam, push the
lever toward the instrument panel. To return to
low-beam headlamps, pull the multifunction lever toward
you. Then release it.
When the high beams are
on, this indicator light on
the instrument panel
cluster will also be on.
Flash-to-Pass
This feature lets you use the high-beam headlamps to
signal a driver in front of you that you want to pass.
It works even if the headlamps are in the automatic
position.
To use it, pull the turn signal lever toward you, then
release it.
If the headlamps are in the automatic position or on low
beam, the high-beam headlamps will turn on. They will
stay on as long as you hold the lever toward you. The
high-beam indicator on the instrument panel cluster will
come on. Release the lever to return to normal
operation.
4-5

AUTO (Automatic):Automatically turns on the
headlamps at normal brightness, together with the
following:
.Parking Lamps
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
When the vehicle is turned off and the headlamps are in
AUTO, the headlamps may automatically remain on for
a set time. The time of the delay can be changed using
the DIC. See Driver Information Center (DIC)
on
page 4‑49(If Equipped).
; (Parking Lamps): Turns on the parking lamps
together with the following:
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
2 (Headlamps): Turns on the headlamps together with
the following:
.Parking Lamps
.Instrument Panel Lights
.Taillamps
.License Plate Lamps When the headlamps are turned on while the vehicle is
on, the headlamps turn off automatically 10 minutes
after the ignition is turned off. When the headlamps are
turned on while the vehicle is off, the headlamps will
stay on for 10 minutes before automatically turning off
to prevent the battery from being drained. Turn the
headlamp control to off and then back to the headlamp
on position to make the headlamps stay on for an
additional 10 minutes.
Push the turn signal/multifunction lever toward the
instrument panel to change the headlamps from low
beam to high beam.
Headlamps on Reminder
For vehicles with a radio, a reminder chime sounds
when the headlamps or parking lamps are manually
turned on, the ignition is off and a door is open. To
disable the chime, turn the light off.
4-11

Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
Fully functional daytime running lamps are required on
all vehicles first sold in Canada.
The DRL system comes on when the following
conditions are met:
.The ignition is on.
.The exterior lamps control is in AUTO.
.The engine is running.
.The light sensor determines it is daytime.
When the DRL system is on, only the DRL lamps are
on. The taillamps, sidemarker, instrument panel lights,
and other lamps will not be on.
When it begins to get dark, the automatic headlamp
system switches from DRL to the headlamps.
To turn off the DRL lamps, turn the exterior lamps
control to the OFF position and then release. For
vehicles first sold in Canada, the transmission must be
in the P (Park) position, before the DRL lamps can be
turned off.
Automatic Headlamp System
When it is dark enough outside, the automatic
headlamp system turns on the headlamps at the normal
brightness, along with the taillamps, sidemarker, parking
lamps, and the instrument panel lights. The radio lights
will also be dim.
To turn off the automatic headlamp system, turn the
exterior lamps switch to the off position and then
release it. For vehicles first sold in Canada, the
transmission must be in the P (Park) position, before the
automatic headlamp system can be turned off.
The vehicle has a light sensor located on the top of the
instrument panel in the defroster grille that regulates
when the automatic headlamps turn on. Do not cover
the sensor or the headlamps will come on whenever the
ignition is on.
The system may also turn on the headlamps when
driving through a parking garage or heavy overcast
weather. This is normal.
There is a delay in the transition between the daytime
and nighttime operation of the Daytime Running Lamps
(DRL) and the automatic headlamp systems so that
driving under bridges or bright overhead street lights
does not affect the system. The DRL and automatic
headlamp system is only affected when the light sensor
detects a change in lighting lasting longer than the
delay.
4-12