A.Outlet Adjustment on page 4‑23.
B. Turn Signal/Multifunction Lever on page 4‑4.
C. Instrument Panel Cluster on page 4‑26.
D. Shift Lever. See Automatic Transmission Operation
on page 3‑30.
E. Tow/Haul Mode on page 3‑34.
F. Driver Information Center (DIC) Buttons. See Driver Information Center (DIC) on page 4‑42.
G. Audio System(s) on page 4‑75.
H. Exterior Lamps on page 4‑11.
I. Dome Lamp Override
on page 4‑14.Instrument
Panel Brightnesson page 4‑14. Fog Lampson
page 4‑14. J.
Cruise Control
on page 4‑8.Heated Steering
Wheelon page 4‑4(If Equipped).
K. Tilt Wheel on page 4‑3.
L. Horn on page 4‑3.
M. Audio Steering Wheel Controls on page 4‑132.
N. Dual Automatic Climate Control System
on
page 4‑18.
O. Accessory Power Outlet(s)
on page 4‑16.
Cigarette Lighter (If Equipped). See Ashtray(s) and
Cigarette Lighter
on page 4‑17.
P. StabiliTrak®Systemon page 5‑6.Ultrasonic
Rear Parking Assist (URPA) on page 3‑45.
Q. Glove Box on page 3‑62.
1-3
Performance and Maintenance
StabiliTrak®
The vehicle may have a traction control system that
limits wheel spin and the StabiliTrak system that assists
with directional control of the vehicle in difficult driving
conditions. Both systems turn on automatically every
time the vehicle is started.
.To turn off traction control, press and release5
on the instrument panel.Filluminates and the
appropriate DIC message displays. See DIC
Warnings and Messages on page 4‑56.
.To turn off both traction control and Electronic
Stability Control, press and hold
5untilF
illuminates and the appropriate DIC message
displays. See DIC Warnings and Messageson
page 4‑56.
.Press and release the button again to turn on both
systems.
For more information, see StabiliTrak
®Systemon
page 5‑6.
Tire Pressure Monitor
This vehicle may have a Tire Pressure Monitor
System (TPMS).
The Tire Pressure Monitor
alerts you when a
significant reduction in
pressure occurs in one or
more of the vehicle’s tires
by illuminating the low tire
pressure warning light on
the instrument cluster.
The warning light will remain on until the tire pressure is
corrected. The proper tire pressures for your vehicle are
listed on the Tire and Loading Information label located
on the driver side center pillar (B pillar). See Loading
the Vehicle
on page 5‑31.
You may notice during cooler conditions that the low tire
pressure warning light will appear when the vehicle is
first started and then turn off as you drive. This may be
an early indicator that your tire pressures are getting
low and the tires need to be inflated to the proper
pressure.
1-22
{WARNING:
Children who are up against, or very close to,
any airbag when it inflates can be seriously
injured or killed. Airbags plus lap-shoulder belts
offer protection for adults and older children, but
not for young children and infants. Neither the
vehicle's safety belt system nor its airbag system
is designed for them. Young children and infants
need the protection that a child restraint system
can provide. Always secure children properly in
your vehicle. To read how, seeOlder Children
on
page 2‑49
or Infants and Young Childrenon
page 2‑52
.
There is an airbag
readiness light on the
instrument panel cluster,
which shows the airbag
symbol.
The system checks the airbag electrical system for
malfunctions. The light tells you if there is an electrical
problem. See Airbag Readiness Light
on page 4‑28for
more information.
2-77
When the PASS-Key®III+ system senses that someone
is using the wrong key, it prevents the vehicle from
starting. Anyone using a trial-and-error method to start
the vehicle will be discouraged because of the high
number of electrical key codes.
If the engine does not start and the security light on
the instrument panel cluster comes on when trying
to start the vehicle, there may be a problem with
your theft-deterrent system. Turn the ignition off and
try again.
If the engine still does not start, and the key appears to
be undamaged, try another ignition key. At this time,
you may also want to check the fuse, see Fuses and
Circuit Breakers
on page 6‑107. If the engine still does
not start with the other key, your vehicle needs service.
If your vehicle does start, the first key may be faulty.
See your dealer/retailer who can service the
PASS-Key
®III+ to have a new key made. In an
emergency, contact Roadside Assistance.
It is possible for the PASS-Key
®III+ decoder to learn
the transponder value of a new or replacement key.
Up to 10 keys may be programmed for the vehicle.
The following procedure is for programming additional
keys only. If all the currently programmed keys are lost
or do not operate, you must see your dealer/retailer or a
locksmith who can service PASS-Key
®III+ to have keys
made and programmed to the system. See your dealer/retailer or a locksmith who can service
PASS-Key
®III+ to get a new key blank that is cut
exactly as the ignition key that operates the system.
To program the new additional key:
1. Verify that the new key has a
1stamped on it.
2. Insert the original, already programmed, key in the ignition and start the engine. If the engine will not
start, see your dealer/retailer for service.
3. After the engine has started, turn the key to LOCK/OFF, and remove the key.
4. Insert the new key to be programmed and turn it to the ON/RUN position within five seconds of turning
the ignition to the LOCK/OFF position in Step 3.
The security light will turn off once the key has
been programmed.
5. Repeat Steps 1 through 4 if additional keys are to be programmed.
If you lose or damage your PASS-Key
®III+ key, see
your dealer/retailer or a locksmith who can service
PASS-Key
®III+ to have a new key made.
Do not leave the key or device that disarms or
deactivates the theft deterrent system in the vehicle.
3-23
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.
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
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.
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.
3-26
Automatic Transmission Operation
The vehicle has a Hydra-Matic®6L80 automatic
transmission, and has an electronic shift position
indicator within the instrument panel cluster.
The electronic shift position indicator displays when
the shift lever is moved out of P (Park).
There are several different positions for the shift lever.
Light Duty 6‐Speed Automatic Transmission Shown (Heavy Duty 6‐Speed Similar)
See “Range Selection Mode” later in this section.
P (Park) : This position locks your rear wheels. It is the
best position to use when you start the engine because
the vehicle cannot move easily. When parked on a hill, especially when the vehicle has
a heavy load, you may notice an increase in the effort
to shift out of P (Park). See Torque Lock (Automatic
Transmission) under
Shifting Into Park
on page 3‑37for more information.
{WARNING:
It is dangerous to get out of the vehicle if the shift
lever is not fully in P (Park) with the parking brake
firmly 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). See Shifting Into
Park
on page 3‑37. If you are pulling a trailer,
see Towing a Trailer on page 5‑42.
3-30
Tow/Haul Mode
The vehicle has a tow/haul mode. The tow/haul mode
adjusts the transmission shift pattern to reduce shift
cycling, providing increased performance, vehicle
control, and transmission cooling when towing or
hauling heavy loads.Press the button located on the end of the shift lever to
turn the tow/haul on or off. When the tow/haul is on, a
light on the instrument panel cluster will come on.
See
Tow/Haul Mode Light
on page 4‑40for more
information.
Also see “Tow Haul Mode” underTowing a Trailer
on
page 5‑42for more information.
The tow/haul mode works with the Autoride
®feature,
if the vehicle has this, to enhance the ride when
trailering or with a loaded vehicle. See Autoride
®on
page 5‑41.
3-34
Section 4 Instrument Panel
Instrument Panel Overview. . . . . . . . . . . . . . . . . . . . . . . .4-3
Hazard Warning Flashers . . . . . . . . . . . . . . . . . . . . . . . 4-3
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Tilt Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Heated Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Turn Signal/Multifunction Lever . . . . . . . . . . . . . . . . . . 4-4
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . 4-5
Headlamp High/Low-Beam Changer . . . . . . . . . . . . 4-5
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Windshield Wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Windshield Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Rear Window Wiper/Washer . . . . . . . . . . . . . . . . . . . . 4-7
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Exterior Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Headlamps on Reminder . . . . . . . . . . . . . . . . . . . . . . 4-12
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 4-12
Automatic Headlamp System . . . . . . . . . . . . . . . . . . 4-13
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Instrument Panel Brightness . . . . . . . . . . . . . . . . . . . 4-14
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Dome Lamp Override . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Front Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Electric Power Management . . . . . . . . . . . . . . . . . . . 4-15 Battery Run-Down Protection . . . . . . . . . . . . . . . . . . 4-16
Accessory Power Outlet(s) . . . . . . . . . . . . . . . . . . . . . 4-16
Ashtray(s) and Cigarette Lighter . . . . . . . . . . . . . . . 4-17
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Dual Automatic Climate Control System . . . . . . . 4-18
Outlet Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
Rear Air Conditioning and Heating System
and Electronic Climate Controls . . . . . . . . . . . . . 4-24
Warning Lights, Gages, and Indicators . . . . . . . . . .4-25
Instrument Panel Cluster . . . . . . . . . . . . . . . . . . . . . . . 4-26
Speedometer and Odometer . . . . . . . . . . . . . . . . . . . 4-27
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Safety Belt Reminders . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Airbag Readiness Light . . . . . . . . . . . . . . . . . . . . . . . . 4-28
Passenger Airbag Status Indicator . . . . . . . . . . . . . 4-29
Charging System Light . . . . . . . . . . . . . . . . . . . . . . . . 4-30
Voltmeter Gage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Brake System Warning Light . . . . . . . . . . . . . . . . . . . 4-32
Antilock Brake System (ABS) Warning Light . . . 4-33
StabiliTrak
®Indicator Light . . . . . . . . . . . . . . . . . . . . . 4-33
Engine Coolant Temperature Gage . . . . . . . . . . . . 4-34
Tire Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Malfunction Indicator Lamp . . . . . . . . . . . . . . . . . . . . 4-35
Oil Pressure Gage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38
4-1