2006 GMC YUKON Owner's Manual

CAUTION: (Continued)
Side impact airbags are designed to inate in
moderate to severe crashes where something
hits the side of your vehicle. They are not
designed to inate in frontal, in rollover or in
rear crashes.
Everyone in your vehicle should wear a safety
belt properly — whether or not there is an
airbag for that person.
{CAUTION:
Both frontal and side impact 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.
Front occupants should not lean on or sleep
against the door.
1-75

{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 1-47orInfants and Young Children
on page 1-50.
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 3-38
for more information.
Where Are the Airbags?
The driver’s frontal airbag is in the middle of the
steering wheel.
1-76

The right front passenger’s frontal airbag is in the
instrument panel on the passenger’s side.If your vehicle has one, the driver’s side impact airbag
is in the side of the driver’s seatback closest to the door.
1-77

If your vehicle has one, the right front passenger’s
side impact airbag is in the side of the passenger’s
seatback closest to the door.
{CAUTION:
If something is between an occupant and an
airbag, the airbag 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. Do not let seat covers
block the ination path of a side impact airbag.
1-78

When Should an Airbag Inate?
The driver’s and right front passenger’s frontal airbags
are designed to inate in moderate to severe frontal
or near-frontal crashes. But they are designed to inate
only if the impact exceeds a predetermined deployment
threshold. Deployment thresholds take into account
a variety of desired deployment and non-deployment
events and are used to predict how severe a crash
is likely to be in time for the airbags to inate and help
restrain the occupants. Whether your frontal airbags
will or should deploy is not based on how fast your
vehicle is traveling. It depends largely on what you hit,
the direction of the impact and how quickly your
vehicle slows down.
In addition, your vehicle has “dual stage” frontal airbags,
which adjust the restraint according to crash severity.
Your vehicle is equipped with electronic frontal
sensors which help the sensing system distinguish
between a moderate and a more severe frontal impact.
For moderate frontal impacts, these airbags inate
at a level less than full deployment. For more severe
frontal impacts, full deployment occurs. If the front
of your vehicle goes straight into a wall that does not
move or deform, the threshold level for the reduced
deployment is about 10 to 16 mph (16 to 25 km/h),
and the threshold level for a full deployment is about
20 to 30 mph (32 to 48 km/h). (The threshold level
can vary, however, with specic vehicle design, so that
it can be somewhat above or below this range.)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.
Vehicles with dual stage airbags are also equipped
with special sensors which enable the sensing
system to monitor the position of both the driver and
passenger front seats. The seat position sensor provides
information which is used to determine if the airbags
should deploy at a reduced level or at full deployment.
1-79

Your vehicle may or may not have a side impact airbag.
SeeAirbag System on page 1-74. Side impact airbags
are intended to inate in moderate to severe side
crashes. A side impact airbag will inate if the crash
severity is above the system’s designed “threshold
level.” The threshold level can vary with specic
vehicle design. Side impact airbags are not intended
to inate in frontal or near-frontal impacts, rollovers
or rear impacts. A side impact airbag is intended
to deploy on the side of the vehicle that is struck.
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 side
impact airbags, ination is determined by the location
and severity of the impact.
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 4-16for 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.
The sensing system triggers a release of gas from
the inator, which inates the airbag. The inator,
the airbag and related hardware are all part of the
airbag modules. Frontal airbag modules are located
inside the steering wheel and instrument panel.
For seating positions with side impact airbags, there
are also airbag modules in the side of the seatbacks
closest to the door.
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.
1-80

Side impact 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 those airbags. 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 frontal
airbags, and only in moderate to severe side collisions
for vehicles with a side impact airbag.
What Will You See After an
Airbag Inates?
After the airbag inates, it quickly deates, so quickly
that some people may not even realize the airbag
inated. Some components of the airbag module may
be hot for a short time. These components include
the steering wheel hub for the driver’s frontal airbag and
the instrument panel for the right front passenger’s
frontal airbag. For seating positions with side impact
airbags, the side of the seatback closest to the door may
be hot. 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.
1-81

In many crashes severe enough to inate an airbag,
windshields are broken by vehicle deformation.
Additional windshield breakage may also occur from
the right front passenger airbag.
Airbags are designed to inate only once. After
an airbag inates, you will need some new parts
for your airbag system. If you do not get them,
the airbag system will not be there to help protect
you in another crash. A new system will include
airbag modules and possibly other parts. The
service manual for your vehicle covers the need
to replace other parts.
Your vehicle is equipped with a crash sensing and
diagnostic module which records information after
a crash. SeeVehicle Data Collection and Event
Data Recorders on page 7-10.
Let only qualied technicians work on your airbag
system. Improper service can mean that an
airbag system will not work properly. See your
dealer for service.
Passenger Sensing System
If your rearview mirror has one of the indicators pictured
in the following illustrations, your vehicle has a passenger
sensing system. The indicator will be visible when you
turn your ignition key to START or RUN. The words ON
and OFF or the symbol for on and off, will be visible on
the rearview mirror during the system check. When the
system check is complete, either the word ON or the
word OFF, or the symbol for on or the symbol for off will
be visible. SeePassenger Airbag Status Indicator on
page 3-38. If your rearview mirror does not have either
of the indicators pictured, then your vehicle does not
have the passenger sensing system.
Passenger Airbag Status Indicator – United States
Passenger Airbag Status Indicator – Canada
1-82