2007 GMC YUKON XL DENALI ECU

4. Press the endcaps in, this will allow the cover
to t into the trim slot.
5. Lightly pull on the cover holder to make sure
it is secure.
On the extended wheelbase models there are
two cover positions. The slots furthest forward
allow the cover to be used if the third seat is
removed or folded down. The cover can be
installed and removed from either side.
Cargo Tie Downs
Your vehicle may be
equipped with cargo tie
downs in the rear
cargo area that allow
you to strap cargo
in and keep it from
moving inside the
vehicle.
When not using the tie downs, ip them down out
of the way.
Cargo Management System
Your vehicle may be equipped with a cargo
management system. It can be used for storing
and separating cargo and as a table. The
maximum load is 200 lbs. (91 kg) distributed. It is
located in the rear of the vehicle on upper or
lower horizontal guides. There are two vertical
curved guides that connect the upper and
lower horizontal guides together. The system has
three rollers on each side. The system will be
equipped with either a release lever, located in the
middle handle, or a tab located on the side.
These engage and disengage a locator pin. These
are used in adjusting and positioning the system.
The cargo management system can be positioned
on the upper or lower horizontal guides.
182

Anti-Lock Brake System Warning Light...... 234
StabiliTrak®Indicator Light......................... 235
Engine Coolant Temperature Gage............ 236
Tire Pressure Light.................................... 236
Malfunction Indicator Lamp........................ 237
Oil Pressure Gage..................................... 240
Oil Pressure Light..................................... 241
Security Light............................................ 241
Fog Lamp Light......................................... 242
Cruise Control Light.................................. 242
Highbeam On Light................................... 242
Tow/Haul Mode Light................................ 242
Fuel Gage................................................. 243
Low Fuel Warning Light............................ 244
Driver Information Center (DIC).................. 244
DIC Operation and Displays
(Using DIC Buttons)............................... 245
DIC Operation and Displays
(Using Trip Odometer Reset Stem)........ 250
DIC Warnings and Messages.................... 252
DIC Vehicle Customization
(With DIC Buttons)................................. 262Audio System(s)......................................... 272
Setting the Time (Radio with a
Six-Disc CD Player)............................... 274
Setting the Time (Radio with a
Single CD and DVD Player)................... 275
Radio with Six-Disc CD (MP3)................... 276
Radio with CD and DVD........................... 294
XM Radio Messages................................. 319
Navigation/Radio System........................... 321
Rear Seat Entertainment System............... 321
Rear Seat Audio (RSA)............................. 333
Theft-Deterrent Feature............................. 335
Audio Steering Wheel Controls.................. 335
Radio Reception........................................ 336
Care of Your CDs and DVDs.................... 338
Care of the CD and DVD Player............... 338
Rear Side Window Antenna....................... 338
XM™ Satellite Radio Antenna System....... 339
Section 3 Instrument Panel
188

Your vehicle has a rear seat that will accommodate
a rear-facing child restraint. A label on your sun
visor says, “Never put a rear-facing child seat
in the front.” This is because the risk to the
rear-facing child is so great, if the airbag deploys.
{CAUTION:
Even though the passenger sensing
system is designed to turn off the
passenger’s frontal airbag if the system
detects a rear-facing child restraint, no
system is failsafe, and no one can
guarantee that an airbag will not deploy
under some unusual circumstance, even
though it is turned off. We recommend
that rear-facing child restraints be secured
in the rear seat, even if the airbag is off.If the word OFF or the off symbol is lit on the
airbag status indicator, it means that the
passenger sensing system has turned off the right
front passenger’s frontal airbag. SeePassenger
Sensing System on page 101for more on
this, including important safety information.
If, after several seconds, all status indicator lights
remain on, or if there are no lights at all, there
may be a problem with the lights or the passenger
sensing system. See your dealer for service.
{CAUTION:
If the off indicator and the airbag
readiness light ever come on together, it
means that something may be wrong with
the airbag system. If this ever happens,
have the vehicle serviced promptly,
because an adult-size person sitting in the
right front passenger seat may not have
the protection of the frontal airbag. See
Airbag Readiness Light on page 229.
231

Oil Pressure Light
This light will come on
briey when you start
your engine.
{CAUTION:
Do not keep driving if the oil pressure is
low. If you do, your engine can become so
hot that it catches re. You or others
could be burned. Check your oil as soon
as possible and have your vehicle
serviced.Notice:Lack of proper engine oil maintenance
may damage the engine. The repairs would
not be covered by your warranty. Always follow
the maintenance schedule in this manual for
changing engine oil.
That is a check to be sure the light works. If it
does not come on, be sure to have it xed so it will
be there to warn you if something goes wrong.
When the light comes on and stays on, it means
that oil is not owing through your engine
properly. You could be low on oil and you might
have some other system problem.Security Light
This light will come on
briey when you turn
the key toward START.
The light will stay on
until the engine starts.
SeePASS-Key
®III+ Operation on page 137for
more information.
241

Radio Display Message Condition Action Required
No CAT Info Category Name
not availableNo category information is available at this time on this
channel. The system is working properly.
No Information No Text/Informational
message availableNo text or informational messages are available at this time
on this channel. The system is working properly.
CAT Not Found No channel available for
the chosen categoryThere are no channels available for the selected category.
The system is working properly.
XM Theftlocked Theftlock active The XM™ receiver in the vehicle may have previously been
in another vehicle. For security purposes, XM™ receivers
cannot be swapped between vehicles. If this message
appears after having your vehicle serviced, check with your
dealer.
XM Radio ID Radio ID label (channel 0) If tuned to channel 0, this message will alternate with the
XM™ Radio eight digit radio ID label. This label is needed
to activate the service.
Unknown Radio ID not known
(should only be if
hardware failure)If this message is received when tuned to channel 0, there
may be a receiver fault. Consult with your dealer.
Check XM Receivr Hardware failure If this message does not clear within a short period of time,
the receiver may have a fault. Consult with your dealer.
XM Not Available XM™ Not Available If this message does not clear within a short period of time,
the receiver may have a fault. Consult with your dealer.
320

AUX (Auxiliary):Press this button to switch the
system between the DVD player and an auxiliary
source.
d(Camera):Press this button to change camera
angles on DVDs that have this feature when a
DVD is playing. The format and content of
this function will vary for each disc.
1 through 0 (Numeric Keypad):The numeric
keypad provides the capability of direct chapter or
track number selection.
\(Clear):Press this button within three seconds
after entering a numeric selection, to clear all
numeric inputs.
}10 (Double Digit Entries):Press this button to
select chapter or track numbers greater than
nine. Press this button before entering the number.
Battery Replacement
To change the remote control batteries, do the
following:
1. Remove the battery compartment door
located on the bottom of the remote control.
2. Replace the two batteries in the compartment.
Make sure that they are installed correctly,
using the diagram on the inside of the battery
compartment.
3. Close the battery door securely.
If the remote control is to be stored for a long
period of time, remove the batteries and keep them
in a cool, dry place.
330

Loading Your Vehicle for Off-Road
Driving
{CAUTION:
Cargo on the load oor piled higher
than the seatbacks can be thrown
forward during a sudden stop. You or
your passengers could be injured.
Keep cargo below the top of the
seatbacks.
Unsecured cargo on the load oor can
be tossed about when driving over
rough terrain. You or your passengers
can be struck by ying objects.
Secure the cargo properly.
Heavy loads on the roof raise the
vehicle’s center of gravity, making it
more likely to roll over. You can be
seriously or fatally injured if the
vehicle rolls over. Put heavy loads
inside the cargo area, not on the roof.
Keep cargo in the cargo area as far
forward and low as possible.There are some important things to remember
about how to load your vehicle.
The heaviest things should be on the load
oor and forward of the rear axle. Put
heavier items as far forward as you can.
Be sure the load is secured properly, so
driving on the off-road terrain does not
toss things around.
You will nd other important information in this
manual. SeeLoading Your Vehicle on page 392
andTires on page 480.
361

Winter Driving
Here are some tips for winter driving:
Have your vehicle in good shape for winter.
You may want to put winter emergency
supplies in your vehicle.
Also seeTires on page 480.Include an ice scraper, a small brush or broom, a
supply of windshield washer uid, a rag, some
winter outer clothing, a small shovel, a ashlight, a
red cloth, and a couple of reective warning
triangles. And, if you will be driving under severe
conditions, include a small bag of sand, a
piece of old carpet, or a couple of burlap bags to
help provide traction. Be sure you properly
secure these items in your vehicle.
Driving on Snow or Ice
Most of the time, those places where the tires
meet the road probably have good traction.
However, if there is snow or ice between the tires
and the road, you can have a very slippery
situation. You will have a lot less traction, or grip,
and will need to be very careful.
386