roof GMC YUKON 2007 Owner's 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

Airbag System
Your vehicle has a frontal airbag for the driver
and a frontal airbag for the right front passenger.
Your vehicle also has roof-mounted rollover
airbags designed for either side impact or rollover
deployment. Roof-mounted rollover airbags are
available for the driver and the passenger seated
directly behind the driver and for the right front
passenger and the passenger seated directly
behind that passenger.
For roof-mounted rollover airbags, the word
AIRBAG will appear on the airbag covering on the
ceiling above the sidewall trim near the driver’s
and right front passenger’s window and the
second row outside seating positions.
Also, if your vehicle has a third row passenger
seat, your vehicle will have third row roof-mounted
rollover airbags.
Frontal airbags are designed to help reduce
the risk of injury from the force of an inating
frontal airbag. But these airbags must inate very
quickly to do their job and comply with federal
regulations.Here are the most important things to know about
the airbag system:
{CAUTION:
You can be severely injured or killed in a
crash if you are not wearing your safety
belt — even if you have airbags. Wearing
your safety belt during a crash helps
reduce your chance of hitting things
inside the vehicle or being ejected from it.
Airbags are “supplemental restraints” to
the safety belts. All airbags are designed
to work with safety belts but do not
replace them.
Frontal airbags for the driver and right
front passenger are designed to deploy in
moderate to severe frontal and near frontal
crashes.
CAUTION: (Continued)
90

CAUTION: (Continued)
They are not designed to inate in
rollover, rear crashes, or in many side
crashes. And, for some unrestrained
occupants, frontal airbags may provide
less protection in frontal crashes than
more forceful airbags have provided in
the past.
Roof-mounted rollover airbags are
designed to inate in moderate to severe
crashes where something hits the side of
your vehicle, during a vehicle rollover,
or in a severe frontal impact. They are not
designed to inate in rear crashes. If your
vehicle has roof-mounted airbags, they
are designed to provide both side impact
protection and rollover protection.
Everyone in your vehicle should wear a
safety belt properly — whether or not there
is an airbag for that person.
{CAUTION:
Both frontal and roof-mounted rollover
airbags inate with great force, faster than
the blink of an eye. If you are too close to
an inating airbag, as you would be if you
were leaning forward, it could seriously
injure you. Safety belts help keep you in
position for airbag ination before and
during a crash. Always wear your safety
belt even with frontal airbags. The driver
should sit as far back as possible while
still maintaining control of the vehicle.
Occupants should not lean on or sleep
against the door in the rst or second row
seats, or the rear windows in the third row
seat, if your vehicle has roof-mounted
rollover airbags.
91

{CAUTION:
Anyone who is up against, or very close
to, any airbag when it inates can be
seriously injured or killed. Airbags plus
lap-shoulder belts offer the best
protection for adults, 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 61orInfants and Young Children on
page 64.
Occupants should not lean on or sleep
against the door in the rst or second row
seats, or the rear windows in the third row
seat, if your vehicle has roof-mounted
rollover airbags.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. SeeAirbag Readiness Light on
page 229for more information.
92

The roof-mounted rollover airbag for the driver and
the person seated directly behind the driver is
located in the ceiling above the side windows.The roof-mounted rollover airbag for the right front
passenger and the person directly behind that
passenger is located in the ceiling above the side
windows.
94

If your vehicle has a third row seat, the
roof-mounted rollover airbag is located in the
ceiling above the rear windows for the outside
passenger positions.
{CAUTION:
If something is between an occupant and
an airbag, the bag might not inate
properly or it might force the object into
that person causing severe injury or even
death. The path of an inating airbag
must be kept clear. Do not put anything
between an occupant and an airbag, and
do not attach or put anything on the
steering wheel hub or on or near any
other airbag covering. And, if your vehicle
has roof-mounted rollover airbags, never
secure anything to the roof of your
vehicle by routing the rope or tie down
through any door or window opening. If
you do, the path of an inating side
impact airbag will be blocked. The path of
an inating airbag must be kept clear.
95

Frontal airbags may inate at different crash
speeds. For example:
If the vehicle hits a stationary object, the
airbags could inate at a different crash speed
than if the vehicle hits a moving object.
If the vehicle hits an object that deforms, the
airbags could inate at a different crash
speed than if the vehicle hits an object that
does not deform.
If the vehicle hits a narrow object (like a pole)
the airbags could inate at a different crash
speed than if the vehicle hits a wide object
(like a wall).
If the vehicle goes into an object at an angle
the airbags could inate at a different crash
speed than if the vehicle goes straight into the
object.
The frontal airbags (driver and right front
passenger) are not intended to inate during
vehicle rollovers, rear impacts, or in many side
impacts.Your vehicle has a seat position sensor which
enables the sensing system to monitor the
fore and aft position of the driver’s seat. Seat
position sensors provide information that is used
to determine if the airbags should deploy at a
reduced level or at full deployment.
Your vehicle has roof-mounted rollover airbags
and a rollover sensor. SeeAirbag System on
page 90. These “rollover capable” airbags
are intended to inate in moderate to severe side
crashes, during a rollover or in a severe frontal
impact. A roof-mounted rollover airbag will inate if
the crash severity is above the system’s designed
“threshold level.” The threshold level can vary
with specic vehicle design. Roof-mounted rollover
airbags are not intended to inate in rear
impacts. Both roof-mounted rollover airbags will
deploy when either side of the vehicle is struck or
during a rollover, or in a severe frontal impact.
97

In any particular crash, no one can say whether
an airbag should have inated simply because
of the damage to a vehicle or because of what the
repair costs were. For frontal airbags, ination is
determined by what the vehicle hits, the angle
of the impact, and how quickly the vehicle
slows down. For roof-mounted rollover airbags,
ination is determined by the location and severity
of the impact or a rollover event.
The airbag system is designed to work properly
under a wide range of conditions, including off-road
usage. Observe safe driving speeds, especially
on rough terrain. As always, wear your safety belt.
SeeOff-Road Driving on page 359for tips on
off-road driving.What Makes an Airbag Inate?
In an impact of sufficient severity, the airbag
sensing system detects that the vehicle is
in a crash. In the case of a roof-mounted rollover
airbag, the sensing system detects that the
vehicle is about to roll over or has been in a severe
frontal impact. The sensing system triggers a
release of gas from the inator, which inates the
airbag. The inator, airbag, and related hardware
are all part of the airbag modules inside the
steering wheel and in the instrument panel in front
of the right front passenger. For vehicles with
roof-mounted rollover airbags, the airbag modules
are located in the ceiling of the vehicle, near
the side windows.
If your vehicle has a third row seat with
roof-mounted rollover airbags, the airbag modules
are located inside the rear-most pillar trim and
above in the ceiling above the xed rear glass.
98

How Does an Airbag Restrain?
In moderate to severe frontal or near frontal
collisions, even belted occupants can contact
the steering wheel or the instrument panel.
In moderate to severe side collisions, even belted
occupants can contact the inside of the vehicle.
The airbag supplements the protection provided by
safety belts. Airbags distribute the force of the
impact more evenly over the occupant’s upper
body, stopping the occupant more gradually. But
the frontal airbags would not help you in many
types of collisions, including rollovers, rear
impacts, and many side impacts, primarily because
an occupant’s motion is not toward the airbag.Roof-mounted rollover airbags would not help
you in many types of collisions, including many
frontal or near frontal collisions, and rear impacts,
primarily because an occupant’s motion is not
toward the airbag. Airbags should never be
regarded as anything more than a supplement
to safety belts, and then only in moderate to
severe frontal or near-frontal collisions for the
driver’s and right front passenger’s frontal airbags,
and only in moderate to severe side collisions
for roof-mounted rollover airbags.
99

What Will You See After an Airbag
Inates?
After a frontal airbag inates, it quickly deates, so
quickly that some people may not even realize
an airbag inated. Roof-mounted rollover airbags
are designed to deate more slowly and may
still be at least partially inated minutes after the
vehicle comes to rest. Some components of
the airbag module — the steering wheel hub for
the driver’s airbag, the instrument panel for
the right front passenger’s airbag, and the area
along the ceiling of the vehicle near the side
windows for vehicles with roof–mounted side
impact airbags — may be hot for a short time.
The parts of the airbag that come into contact with
you may be warm, but not too hot to touch.
There will be some smoke and dust coming from
the vents in the deated airbags. Airbag ination
does not prevent the driver from seeing out of the
windshield or being able to steer the vehicle,
nor does it stop people from leaving the vehicle.
{CAUTION:
When an airbag inates, there is dust in
the air. This dust could cause breathing
problems for people with a history of
asthma or other breathing trouble. To
avoid this, everyone in the vehicle should
get out as soon as it is safe to do so. If
you have breathing problems but cannot
get out of the vehicle after an airbag
inates, then get fresh air by opening a
window or a door. If you experience
breathing problems following an airbag
deployment, you should seek medical
attention.
Your vehicle has a feature that may automatically
unlock the doors and turn the interior lamps on
when the airbags inate. You can lock the
doors again and turn the interior lamps off by
using the controls for those features.
100