warning lights GMC YUKON XL DENALI 2007 Owners Manual

Seats and Restraint Systems....................... 7
Front Seats
.............................................. 9
Rear Seats
............................................. 17
Safety Belts
............................................ 38
Child Restraints
...................................... 61
Airbag System
........................................ 90
Restraint System Check
....................... 108
Features and Controls.............................. 111
Keys
..................................................... 113
Doors and Locks
.................................. 122
Windows
............................................... 132
Theft-Deterrent Systems
....................... 134
Starting and Operating Your Vehicle
..... 139
Mirrors
.................................................. 158
OnStar
®System
................................... 164
Universal Home Remote System
.......... 166
Storage Areas
...................................... 178
Sunroof
................................................ 185Instrument Panel....................................... 187
Instrument Panel Overview
................... 190
Climate Controls
................................... 214
Warning Lights, Gages, and Indicators
... 225
Driver Information Center (DIC)
............ 244
Audio System(s)
................................... 272
Driving Your Vehicle................................. 341
Your Driving, the Road, and Your
Vehicle
.............................................. 342
Towing
................................................. 398
Service and Appearance Care.................. 417
Service
................................................. 420
Fuel
...................................................... 423
Checking Things Under the Hood
......... 428
All-Wheel Drive
..................................... 469
Rear Axle
............................................. 470
Front Axle
............................................ 471
Headlamp Aiming
................................. 473
2007 GMC Yukon Denali/Yukon XL Denali Owner ManualM
1

Vehicle Damage Warnings
Also, in this manual you will nd these notices:
Notice:These mean there is something
that could damage your vehicle.
A notice tells about something that can damage
the vehicle. Many times, this damage would not be
covered by your vehicle’s warranty, and it could
be costly. But the notice will tell what to do to help
avoid the damage.
When you read other manuals, you might see
CAUTION and NOTICE warnings in different colors
or in different words.
There are also warning labels on the vehicle. They
use the same words, CAUTION or NOTICE.
Vehicle Symbols
The vehicle has components and labels that use
symbols instead of text. Symbols are shown
along with the text describing the operation or
information relating to a specic component,
control, message, gage, or indicator.
If you need help guring out a specic name of a
component, gage, or indicator, reference the
following topics:
Seats and Restraint Systems in Section 1
Features and Controls in Section 2
Instrument Panel Overview in Section 3
Climate Controls in Section 3
Warning Lights, Gages, and Indicators in
Section 3
Audio System(s) in Section 3
Engine Compartment Overview in Section 5
5

/(Remote Start):Press and release the lock
button and then press and hold the remote
start button to start the vehicle.
To start the vehicle using the remote start feature,
do the following:
1. Aim the transmitter at the vehicle.
2. Press and release the transmitter’s lock
button, then immediately press and hold
the transmitter’s remote start button until the
turn signal lights ash. If you can not see
the vehicle’s lights, press and hold the remote
start button for at least four seconds. The
vehicle’s doors will lock. Pressing the remote
start button again after the vehicle has
started will turn off the ignition.
When the vehicle starts, the parking lamps will
turn on and remain on while the vehicle is
running.
3. If it is your rst remote start since last driving,
repeat these steps while the engine is still
running for a 10 minute time extension.
Remote start can be extended one time.
When you enter the vehicle during a remote start,
and the engine is still running, turn the key to
the RUN position to drive the vehicle.If the vehicle is left running it will automatically
shut off after 10 minutes unless a time extension
has been done.
To manually shut off a remote start, do any of the
following:
Aim the RKE transmitter at the vehicle and
press the remote start button until the
parking lamps turn off.
Turn on the hazards warning ashers.
Turn the ignition switch on and then off.
The vehicle can be remote started two separate
times between driving sequences. The engine will
run for 10 minutes after each remote start.
Or, you can extend the engine run time by another
10 minutes within the rst 10 minute remote
start time frame, and before the engine stops.
For example, if the lock button and then the
remote start buttons are pressed again after
the vehicle has been running for ve minutes,
10 minutes are added, allowing the engine to run
for 15 minutes.
The additional ten minutes are considered a
second remote vehicle start.
120

Obstacle Detection Features
If the liftgate encounters an obstacle during a
power open or close cycle, a warning chime will
sound and the liftgate will automatically reverse
direction to the full closed or open position.
After removing the obstruction, the liftgate may be
power opened or closed normally. If the liftgate
encounters multiple obstacles on the same power
cycle, the power function will deactivate, and
the liftgate will switch to manual operation. The
REAR ACCESS OPEN warning message in
the Driver Information Center (DIC) will indicate
that the liftgate is open. After removing the
obstructions, manually open the liftgate to the full
open position or close the liftgate to the fully
closed and latched position. The liftgate will now
resume normal power operation.
Your vehicle has pinch sensors located on the
side edges of the liftgate. If an object is caught
between the liftgate and the vehicle body and
presses against this sensor, the liftgate will reverse
direction and open fully. The liftgate will remain
open until it is activated again or closed manually.
Manual Operation of Power Liftgate
To change the liftgate
to manual operation,
toggle the switch on the
overhead console to
the “Disable” position
indicated by a circle.
With the power liftgate disabled and the door
unlocked, the power liftgate can be manually
opened and closed.
To open the liftgate, press the touchpad on the
handle on the outside of the liftgate, and lift
the gate open. To close the liftgate, use the pull
cup or pull strap to lower the liftgate and close.
The liftgate latch will power cinch to closed
position. Always close the liftgate before driving.
If the RKE button or the power close button on
the liftgate is pressed while power operation
is disabled, the lights will ash three times, but
the liftgate will not move.
130

Instrument Panel Overview........................ 190
Hazard Warning Flashers.......................... 192
Other Warning Devices............................. 192
Horn.......................................................... 192
Tilt Wheel.................................................. 193
Turn Signal/Multifunction Lever.................. 193
Turn and Lane-Change Signals................. 194
Headlamp High/Low-Beam Changer.......... 195
Flash-to-Pass............................................ 195
Windshield Wipers..................................... 196
Rainsense™ II Wipers............................... 197
Windshield Washer.................................... 198
Rear Window Wiper/Washer...................... 199
Cruise Control........................................... 200
Exterior Lamps.......................................... 203
Headlamps on Reminder........................... 205
Daytime Running Lamps (DRL)................. 205
Automatic Headlamp System..................... 205
Fog Lamps................................................ 206
Instrument Panel Brightness...................... 207
Dome Lamps............................................. 207
Dome Lamp Override................................ 207
Entry Lighting............................................ 207
Exit Lighting.............................................. 207Front Reading Lamps................................ 208
Battery Run-Down Protection..................... 208
Ultrasonic Rear Parking Assist (URPA)...... 208
Accessory Power Outlet(s)........................ 213
Ashtray(s) and Cigarette Lighter................ 214
Climate Controls......................................... 214
Dual Automatic Climate Control System....... 214
Outlet Adjustment...................................... 222
Rear Air Conditioning and Heating
System and Electronic Climate
Controls................................................. 223
Warning Lights, Gages, and Indicators..... 225
Instrument Panel Cluster........................... 226
Speedometer and Odometer...................... 227
Trip Odometer........................................... 227
Tachometer............................................... 227
Safety Belt Reminder Light........................ 228
Passenger Safety Belt Reminder Light....... 228
Airbag Readiness Light............................. 229
Passenger Airbag Status Indicator............. 230
Charging System Light.............................. 232
Voltmeter Gage......................................... 232
Brake System Warning Light..................... 233
Section 3 Instrument Panel
187

The exterior lamps control has four positions:
9(Off):Turn the control to this position to
turn off the automatic headlamps and daytime
running lamps (DRL). Turning the headlamp
control to the off position again will turn the
automatic headlamps or DRL back on.
For vehicles rst sold in Canada, the off position
will only work for vehicles that are shifted into
the PARK (P) position.
AUTO (Automatic):Turn the control to this
position to automatically turn on the headlamps at
normal brightness, together with the following:
Parking Lamps
Instrument Panel Lights
Taillamps
License Plate Lamps
;(Parking Lamps):Turn the control to this
position to turn on the parking lamps together with
the following:
Instrument Panel Lights
Taillamps
License Plate Lamps
2(Headlamps):Turn the control to this position
to turn on the headlamps together with the
following lamps listed below. A warning chime will
sound if you open the driver’s door when the
ignition switch is off and the headlamps are on.
Parking Lamps
Instrument Panel Lights
Taillamps
License Plate Lamps
204

Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages
on your vehicle. The pictures will help you
locate them.
Warning lights and gages can signal that
something is wrong before it becomes serious
enough to cause an expensive repair or
replacement. Paying attention to your warning
lights and gages could also save you or others
from injury.
Warning lights come on when there may be or
is a problem with one of your vehicle’s functions.
As you will see in the details on the next few
pages, some warning lights come on briey when
you start the engine just to let you know they
are working. If you are familiar with this section,
you should not be alarmed when this happens.Gages can indicate when there may be or is a
problem with one of your vehicle’s functions.
Often gages and warning lights work together
to let you know when there is a problem with your
vehicle.
When one of the warning lights comes on and
stays on when you are driving, or when one of
the gages shows there may be a problem, check
the section that tells you what to do about it.
Please follow this manual’s advice. Waiting to do
repairs can be costly – and even dangerous.
So please get to know your warning lights and
gages. They are a big help.
Your vehicle also has a Driver Information Center
(DIC) that works along with warning lights and
gages. SeeDIC Warnings and Messages
on page 252.
225

That’s normal. If the light does not come on then,
have it xed so it will be ready to warn you if
there is a problem.
If the light stays on, or comes on when you are
driving, your vehicle needs service. You will
also hear a chime sound when the light is on
steady. If the regular brake system warning light is
not on, you still have brakes, but you do not
have anti-lock brakes. If the regular brake system
warning light is also on you do not have anti-lock
brakes and there is a problem with your regular
brakes. In addition to both lights, you will also hear
a chime sound on the rst occurrence of a
problem and each time the vehicle is shut off and
then restarted. SeeBrake System Warning
Light on page 233.
The anti-lock brake system warning light should
come on briey when you turn the ignition
key to RUN. If the light does not come on then,
have it xed so it will be ready to warn you if there
is a problem.StabiliTrak®Indicator Light
For vehicles equipped
with the StabiliTrak®
system, this warning
light should come
on briey when the
engine is started.
If the warning light does not come on then, have it
xed so it will be ready to warn you if there is a
problem. If it stays on, or comes on when you are
driving, there may be a problem with your
StabiliTrak
®system and your vehicle may need
service. When this warning light is on, the system
will not limit wheel spin. Adjust your driving
accordingly.
If the StabiliTrak
®system warning light comes on
and stays on for an extended period of time
when the system is turned on, your vehicle needs
service. SeeStabiliTrak
®System on page 349
for more information.
235

Avoid needless heavy braking. Some people drive
in spurts — heavy acceleration followed by
heavy braking — rather than keeping pace with
traffic. This is a mistake. Your brakes may
not have time to cool between hard stops. Your
brakes will wear out much faster if you do a lot of
heavy braking. If you keep pace with the traffic
and allow realistic following distances, you
will eliminate a lot of unnecessary braking. That
means better braking and longer brake life.
If your engine ever stops while you are driving,
brake normally but do not pump your brakes. If you
do, the pedal may get harder to push down. If
your engine stops, you will still have some power
brake assist. But you will use it when you
brake. Once the power assist is used up, it may
take longer to stop and the brake pedal will
be harder to push.
Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modications on page 421.Anti-Lock Brake System (ABS)
Your vehicle has the Anti-Lock Brake System
(ABS), an advanced electronic braking system that
will help prevent a braking skid.
When you start your engine and begin to drive
away, ABS will check itself. You may hear a
momentary motor or clicking noise while this test
is going on. This is normal.
If there is a problem
with ABS, this warning
light will stay on.
SeeAnti-Lock Brake
System Warning
Light on page 234.
Along with ABS, your vehicle has a Dynamic Rear
Proportioning (DRP) system. If there is a DRP
problem, both the brake and ABS warning lights
will come on accompanied by a 10-second
chime. The lights and chime will come on each
time the ignition is turned on until the problem is
repaired. See your dealer for service.
347

Traction Control Operation
The traction control system is part of the
StabiliTrak®system. Traction control limits wheel
spin by reducing engine power to the wheels
(engine speed management) and by applying
brakes to each individual wheel (brake-traction
control) as necessary.
The traction control system is enabled
automatically when you start your vehicle. It will
activate and the StabiliTrak
®light will ash if
it senses that any of the wheels are spinning or
beginning to lose traction while driving. If you turn
off traction control, only the brake-traction
control portion of traction control will work. The
engine speed management will be disabled. In this
mode, engine power is not reduced automatically
and the driven wheels can spin more freely.
This can cause the brake-traction control to
activate constantly.
Notice:If you allow the wheel(s) of one axle
to spin excessively while the StabiliTrak
®, ABS
and brake warning lights and the SERVICE
STABILITRAK message are displayed,
you could damage the transfer case. The
repairs would not be covered by your warranty.Reduce engine power and do not spin the
wheel(s) excessively while these lights and this
message are displayed.
The traction control system may activate on
dry or rough roads or under conditions such as
heavy acceleration while turning or abrupt
upshifts/downshifts of the transmission. When
this happens, you may notice a reduction in
acceleration, or may hear a noise or vibration.
This is normal.
If your vehicle is in cruise control when the system
activates, the StabiliTrak
®light will ash and the
cruise control will automatically disengage.
When road conditions allow you to use cruise
again, you may re-engage the cruise control. See
Cruise Control on page 200.
StabiliTrak
®may also turn off automatically if it
determines that a problem exists with the system.
If the problem does not clear itself after restarting
the vehicle, you should see your dealer for
service.
352