Seat Exeo ST 2012 Owner's Guide

29
Airbag system
Airbag system
Brief introduction Why wear a seat belt and assume the correct sitting
position?
For the inflating airbags to achieve the best protection, the
seat belt must always be worn properly and the correct sit-
ting position must be assumed.For your own safety and the safety of the passengers, please en-
sure the following before driving:
– Always wear the seat belt properly ⇒ page 19.
– Adjust the driver seat and the steering wheel correctly
⇒ page 10.
– Adjust the front passenger seat correctly ⇒ page 11.
– Adjust the head restraint correctly ⇒ page 13.
– Use the correct child restraint system to protect children in your
vehicle ⇒ page 47.
The airbag is deployed at high speed in fractions of a second. If you have an
incorrect seating position at the time the airbag is deployed, it could cause
you critical injuries. Therefore, it is essential that all passengers in the vehi-
cle assume a correct sitting position while travelling.
A sharp braking before an accident may cause a passenger not wearing a
seat belt to be thrown forward into the area of the deploying airbag. In this case, the inflating airbag may inflict critical or fatal injuries on the occupant.
This also applies to children.
Always maintain the greatest possible distance between yourself and the
front airbag. This way, the front airbags can completely deploy when trig-
gered, providing their maximum protection.
The most important factors that will trigger an airbag are: the type of acci-
dent, the angle of collision and the speed of the vehicle.
Whether the airbags are triggered depends primarily on the vehicle deceler-
ation rate resulting from the collision and detected by the control unit. If the
vehicle deceleration occurring during the collision and measured by the
control unit remains below the specified reference values, the front, side
and/or curtain airbag will not be triggered. Take into account that the visible
damage in a vehicle involved in an accident, no matter how serious, is not a
determining factor for the airbags to have been triggered.
WARNING
● Wearing the seat belt incorrectly or assuming an incorrect sitting po-
sition can lead to critical or fatal injuries.
● All occupants, including children, who are not properly belted can
sustain critical or fatal injuries if the airbag is triggered. Children up to
12 years old should always travel on the rear seat. Never transport chil-
dren in the vehicle if they are not restrained or the restraint system is not
appropriate for their age, size or weight.
● If you are not wearing a seat belt, if you lean forward or to the side
while travelling or assume an incorrect sitting position, there is a sub-
stantially increased risk of injury. This increased risk of injury will be fur-
ther increased if you are struck by an inflating airbag. 
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30Airbag system
WARNING (Continued)
● To reduce the risk of injury from an inflating airbag, always wear the
seat belt properly ⇒ page 19.
● Always adjust the front seats properly.

The danger of fitting a child seat on the front passenger
seat
Rear-facing child seats must never be used on the front pas-
senger seat when the front passenger airbag is enabled. The front passenger airbag is a serious risk for a child if it is activated. The
front passenger seat is life threatening to a child if he/she is transported in
a rear-facing child seat. Children up to 12 years old should always travel on
the rear seat.
If a rear-facing child seat is secured to the front passenger seat, an inflating
airbag can strike it with such force that it can cause critical or fatal injuries.
Therefore we strongly recommend you to transport children on the rear
seats. That is the safest place for children in the vehicle. Alternatively, the
front passenger airbag can be disabled with a key-operated switch
⇒ page 45. When transporting children, use a child seat appropriate to
the age and size of each child ⇒ page 47.
For those vehicles that do not include a key lock switch to disconnect the
airbag, the vehicle must be taken to a Technical Service.
WARNING
● If a child seat is secured to the front passenger seat, the risk to the
child of sustaining critical or fatal injuries in the event of an accident in-
creases.
● Never secure a rear-facing child seat to the front passenger seat if the
front passenger airbag is enabled. The child can suffer critical or fatal in-
juries if the front passenger airbag is triggered.
● An inflating front passenger airbag can strike the rear-facing child
seat and hurl it with great force against the door, the roof or the back-
rest.
● If, under special circumstances, it is necessary to transport a child in
a rear-facing child seat on the front passenger seat, it is absolutely es-
sential that you observe the following safety measures:
–Deactivate the front passenger airbag ⇒ page 45, Deactivating
airbags.
– The child seat must be approved by the child seat manufacturer for
use on a front passenger seat with front or side airbag.
– Follow the installation instructions given by the child seat manu-
facturer and observe the safety instructions ⇒ page 47, Child safe-
ty.
– Before properly installing the child seat, push the front passenger
seat completely backwards so that the greatest possible distance to
the front passenger airbag is ensured.
– Ensure that no objects prevent the front passenger seat from being
pushed completely back.
– The backrest of the front passenger seat must be in an upright po-
sition.


31
Airbag system
Warning lamp for airbag and seat belt tensioner 
This warning lamp monitors the airbag and seat belt ten-
sioner system.
The warning lamp monitors all airbags and seat belt tensioners in the vehi-
cle, including control units and wiring connections.
Monitoring of airbag and belt tensioner system
Both the airbag and belt tensioner systems operation is constantly moni-
tored electronically. The warning lamp  will light every time the ignition is
switched on until you attach your seatbelt.
The system must be checked when the warning lamp  :
● does not light up when the ignition is switched on,
● turns off and then lights up again after the ignition is switched on,
● lights up or flashes while the vehicle is moving.
In the event of a malfunction, the warning lamp remains on continuously.
Have the system inspected immediately by a specialised workshop.
If any of the airbags are de-activated by the Technical Service, the indicator
lights for several seconds more after the verification and will turn off if there
is no fault.
WARNING
● If there is a malfunction, the airbag and belt tensioner system cannot
properly perform its protective function.
● If a malfunction occurred, have the system checked immediately by a
specialised workshop. Otherwise, in the event of an accident, the airbag
system and belt tensioners may not be triggered, or may not be triggered
correctly.
 Repairs, maintenance and disposal of airbags
The parts of the airbag system are installed in various places in your vehi-
cle. If work is carried out on the airbag system or parts have to be removed
and fitted on the system when performing other repair work, parts of the air-
bag system may be damaged. In the event of an accident this could cause
the airbag to inflate incorrectly or not inflate at all.
The relevant safety requirements must be observed when the vehicle or
components of the airbag are
scrapped. Specialised workshops and vehicle
disposal centres are familiar with these requirements.
WARNING
● If repairs are not carried out by a professional, or if the airbags are
used incorrectly, the risk of severe or fatal injuries is increased. The air-
bags may fail to inflate, or could inflate in the wrong circumstances.
● Do not cover or stick anything on the steering wheel hub or the sur-
face of the airbag unit on the passenger side of the dash panel, and do
not obstruct or modify them in any way.
● It is important not to attach any objects such as cup holders or tele-
phone mountings to the surfaces covering the airbag units.
● To clean the steering wheel or dash panel, you may use only a dry or a
water-moistened cloth. Never clean the dash panel and the airbag mod-
ule surface with cleaners containing solvents. Solvents cause the surface
to become porous. If the airbag triggered, plastic parts could become de-
tached and cause injuries.
● Never attempt to repair, adjust, remove or install parts of the airbag
system. 
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32Airbag system
WARNING (Continued)
● Any work on the airbag system or removal and installation of the air-
bag components for other repairs (such as repairs to the steering wheel)
should be performed only by a specialised workshop. Specialised work-
shops have the necessary tools, repair information and qualified person-
nel.
● We strongly recommend you to go to a specialised workshop for all
work on the airbag system.
● Never attempt to alter the front bumper or the body.
● The airbags provide protection for just one accident; replace them
once they have deployed.
For the sake of the environment
The airbags, which are a special type of waste, must be disposed of through
an authorised service, because they contain pyrotechnic elements. 

33
Airbag system
Front airbags
Description of front airbags
The airbag system is not a substitute for the seat belts.
Fig. 17 Driver airbag in
the steering wheel and
knee airbag in the dash
panel
Fig. 18 Front passenger
airbag located in dash
panel The front airbag for the driver is located in the steering wheel
⇒ Fig. 17 and
the airbag for the front passenger is located in the dash panel ⇒ Fig. 18. Air-
bags are identified by the word “AIRBAG”. On the driver side, the knee air-
bag* is found in the footwell lining, under the instrument panel.
In conjunction with the seat belts, the front airbag system gives the front
occupants additional protection for the head and chest in the event of a se-
vere frontal collision ⇒ page 36, Safety notes on the front airbag system.
In addition to their normal function of restraining the occupants, the seat
belts also hold the driver and front passenger in a position where the air-
bags can provide maximum protection in a frontal collision.
The airbag system is not a substitute for seat belts, but it is an integral part
of the vehicle's overall passive safety system. Please bear in mind that the
airbag system can only work effectively when the occupants are wearing
their seat belts correctly and have adjusted the head restraints properly.
Therefore, it is most important to wear the seat belts at all times, not only
because this is required by law in most countries, but also for your safety
⇒ page 19, Brief introduction.
The main parts of the front airbag system are:
● an electronic control and monitoring system (control unit)
● the two front airbags (airbag with gas generator) for the driver and front
passenger,
● a knee airbag* for the driver,
● a warning lamp  on the instrument panel ⇒ page 31
The airbag system operation is monitored electronically. The airbag warning
lamp will light up for a few seconds every time the ignition is switched on
(self-diagnosis).
There is a fault in the system if the warning lamp :
● does not light up when the ignition is switched on ⇒ page 31
● turns off and then lights up again after the ignition is switched on,
● lights up or flashes while the vehicle is moving. 
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34Airbag system
The front airbag system will not be triggered if:
● the ignition is switched off
● there is a minor frontal collision,
● there is a side collision,
● there is a rear-end collision
● the vehicle turns over
WARNING
● The seat belts and airbags can only provide maximum protection if
the occupants are seated correctly ⇒ page 10, Proper sitting position for
occupants.
● If a fault has occurred in the airbag system, have the system checked
immediately by a specialised workshop. Otherwise, during a frontal colli-
sion the system may fail to trigger, or not trigger correctly.
 Operation of front airbags
Inflated airbags reduce the risk of head or chest injury.
Fig. 19 Inflated front air-
bags
The airbag system is designed so that the airbags for the driver and front
passenger are triggered in a severe frontal collision.
In certain types of accident the front, curtain and side airbags may be trig-
gered together.
When the system is triggered, the airbags fill with a propellant gas and de-
ploy in front of the driver and front passenger ⇒ Fig. 19. The fully deployed
airbags cushion the forward movement of the front occupants and help to
reduce the risk of injury to the head and the upper part of the body.
The special design of the airbag allows the controlled escape of the propel-
lant gas when an occupant puts pressure on the bag. Thus, the head and
chest are surrounded and protected by the airbag. After the collision, the
airbag deflates sufficiently to allow visibility.
The airbags deploy extremely rapidly, within thousandths of a second, to
provide additional protection in the event of an accident. A fine dust may 

35
Airbag system
develop when the airbag deploys. This is normal and it is not an indication
of fire in the vehicle. 
Airbag covers when the frontal airbags are triggered
Fig. 20 Airbag covers reacting when the front airbags
are triggered
The airbag covers fold out of the steering wheel or dash panel when the
driver and front passenger airbags are triggered ⇒ Fig. 20. The airbag cov-
ers remain connected to the steering wheel or the dash panel. 
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36Airbag system
Safety notes on the front airbag system
If you use airbags correctly, they can considerably reduce
the risk of injury in many kinds of accident.
WARNING
● It is important for the driver and front passenger to keep a distance of
at least 25 cm from the steering wheel and dash panel. If the minimum
distance is not observed then the airbags do not correctly protect the ve-
hicle occupants; risk of fatal injuries! In addition, the front seats and
head restraints must always be positioned correctly for the height of the
occupant.
● If you are not wearing a seat belt, if you lean forward or to the side
while travelling or assume an incorrect sitting position, there is a sub-
stantially increased risk of injury. This increased risk of injury will be fur-
ther increased if you are struck by an inflating airbag.
● Never let a child travel on the front seat without an appropriate re-
straint system. If the airbag is triggered in an accident, children can sus-
tain serious or fatal injuries from the airbag as it inflates ⇒ page 47,
Child safety.
● The deployment space between the front passengers and the airbags
must not in any case be occupied by other passenger, pets and objects.
● The airbags provide protection for just one accident; replace them
once they have deployed.
● It is also important not to attach any objects such as cup holders or
telephone mountings to the surfaces covering the airbag units.
● Do not attempt to modify components of the airbag system in any
way.
 Knee airbag*
Description of the knee airbag
The airbag system provides additional protection to front
seat passengers if they are properly secured.
Fig. 21 Driver knee air-
bag
The knee airbag for the driver is located in the dash panel underneath the
steering wheel ⇒ Fig. 21.
The knee airbag offers additional protection to the driver's knees and upper
and lower thigh areas as a supplement to the seat belts.
If the front airbags deploy, the knee airbag also deploys in severe frontal
collisions ⇒ page 34
Besides their normal safety function, seat belts help keep the driver in posi-
tion in case of a frontal collision so that the airbags can provide protection.
The airbag system is not a substitute for seat belts. It is, on the other hand,
part of the overall occupant safety system of your vehicle. Always remember 

37
Airbag system
that the airbag system can only help to protect you if you are wearing your
seat belt and wearing it properly.
Remember too that airbags will deploy only once and only in certain kinds
of accidents - your seat belts are always there to offer protection in those
accidents in which airbags are not supposed to deploy or when they have
already deployed, for example when your vehicle strikes or is struck by an-
other after the first collision.
This is just one of the reasons why an airbag is not a substitute for the seat
belt. The airbag system works most effectively when used with the seat
belts. Therefore, always wear your seat belts correctly.
It is important to remember that while the airbag system is designed to re-
duce the possibility of serious injuries, other injuries, for example, swelling,
bruising, and minor abrasions can also be associated with airbags.
The knee airbag system basically consists of:
● The electronic control module
● One inflatable airbag (airbag and gas generator) for the driver
● An airbag indicator light on the instrument panel
The knee airbag system will not be triggered:
● if the ignition is switched off
● in frontal collisions when the deceleration measured by the control unit
is too low
● in side collisions
● in rear-end collisions
● in rollovers
● in the event of a system malfunction (hazard warning lights/turn signals
illuminated) ⇒ page 67.
WARNING
● Seat belts and the airbag system can only provide protection when
occupants are in the proper seating position.
● If the airbag indicator light comes on when the vehicle is being used,
have the system inspected immediately by your Technical Service. The
airbag may not work properly when the vehicle acceleration in a side col-
lision is high enough to deploy the airbag. See also ⇒ page 67.

How knee airbags work
The risk of injury to the leg area is reduced by fully deployed
knee airbags.
Fig. 22 Inflated airbags
protect in a frontal colli-
sion.
The knee airbag system has been designed so that the airbag for the driver
is deployed in certain but not all frontal collisions.
If the front airbag deploys, the knee airbag also deploys in severe frontal
collisions. 
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38Airbag system
When the system is deployed, the airbag starts to fill with a propellant gas,
and inflates between the lower part of the dash panel and the driver
⇒  Fig. 22.
Although they are not a soft pillow, they can cushion the impact and in this
way help to reduce the risk of injury to lower limbs.
All this takes place instantaneously, so fast that many people do not even
realise that the airbags have deployed. The airbags also inflate with a great
deal of force and it is important for occupant safety that nothing should be
in their way when they deploy.
Fully inflated airbags in combination with properly worn seat belts slow
down and limit the occupant's forward movement and help to reduce the
risk of injury. 
Important safety notes on the knee airbag system
Airbags are only additional safety
Always wear seat belts correctly and drive in a proper seated position. There
is a lot of information that you and your passengers should know and do so
that the seat belts and airbags can provide additional protection.
WARNING
An inflating knee airbag can cause serious injuries. Wearing seat belts
incorrectly and improper seating positions increase the risk of serious
personal injury and death whenever a vehicle is being used.
● The airbag system cannot protect you properly if you are seated too
close to any of the airbag locations. When adjusting the seat positions, it
is important for the driver to keep the upper body and knees at the fol-
lowing minimum safety distances:
–25 cm between the chest and the steering wheel/dash panel.
– 10 cm between the knees and the lower part of the dash panel.
● The risk of personal injury increases if you lean forward or to the side,
or if the seat is improperly positioned and you are not wearing your seat
belt. The risk increases even more should the airbag deploy.
● Always make sure that the knee airbag can inflate without interfer-
ence. Objects between yourself and the airbag can increase the risk of in-
jury in an accident by interfering with the way the airbag deploys or by
being thrust into you as the airbag deploys.
–No objects of any kind should be carried in the footwell area in
front of the driver's seat. Bulky objects (shopping bags, for example)
can hinder or prevent proper deployment of the airbag. Small objects
can be thrown through the vehicle if the airbag deploys and injure
you or your passengers.
● Make sure there are no cracks, deep scratches or other damage in the
area of the dash panel where the knee airbag is located.
● If children are incorrectly seated, their risk of injury increases in the
case of an accident ⇒ page 47.
