2014 Seat Leon 5D airbag

Safe driving
WARNING
● Any incorrect sitting position increases the
risk of severe injuries. Sitting in an incorrect
position exposes the vehicle occupants to se-
vere injuries if airbags are triggered, by strik-
ing a vehicle occupant who has assumed an
incorrect sitting position.
● Before the vehicle moves, assume the prop-
er sitting position and maintain it throughout
the trip. Before every trip, instruct your pas-
sengers to sit properly and to stay in this po-
sition during the trip ››› page 38, Sitting posi-
tion for vehicle occupants .Correct adjustment of front head
restraints
Fig. 57
Correctly adjusted head restraint as
viewed from the front and the side. Properly adjusted head restraints are an im-
portant part of passenger protection and can reduce the risk of injuries in most accident
situations.
– Adjust the head restraint so that its upper
edge is, as far as possible, at the same lev-
el as the top of your head, or at the very
least, at eye level ››› Fig. 57 .
Adju s
ting the head restraints ›››
 page 12 WARNING
● Travelling with the head restraints removed
or improperly adjusted increases the risk of
severe injuries. An improper adjustment of
the head restraints may cause death in an ac-
cident and increase the risk of suffering inju-
ries during abrupt braking actions or unex-
pected manoeuvres.
● The head restraints must always be adjus-
ted according to the height of the passenger. Correct adjustment of rear head
restraints
Fig. 58
Head restraints in the correct posi-
tion. Fig. 59
Head restraint position warning label. Properly adjusted head restraints are an im-
portant part of the passenger protection and
can reduce the risk of injuries in most acci-
dent situations
»
41Technical specifications
Advice
Operation
Safety
The essentials

Safety
Seat belt protection Fig. 61
Drivers with properly worn seat belts
will not be thrown forward in the event of sud-
den braking Properly worn seat belts hold the occupants
in the proper position. They also help prevent
uncontrolled movements that may result in
serious injury and reduce the risk of being
thrown out of the vehicle in case of an acci-
dent.
Vehicle occupants wearing their seat belts
correctly benefit greatly from the ability of the
belts to absorb kinetic energy. In addition,
the front part of your vehicle and other pas-
sive safety features (such as the airbag sys-
tem) are designed to absorb the kinetic ener-
gy released in a collision. Taken together, all
these features reduce the releasing kinetic
energy and consequently, the risk of injury.
This is why it is so important to fasten seat
belts before every trip, even when "just driv-
ing around the corner". Ensure that your passengers wear their seat
belts as well. Accident statistics have shown
that wearing seat belts is an effective means
of substantially reducing the risk of injury
and improving the chances of survival when
involved in a serious accident. Furthermore,
properly worn seat belts improve the protec-
tion provided by airbags in the event of an
accident. For this reason, wearing a seat belt
is required by law in most countries.
Although your vehicle is equipped with air-
bags, the seat belts must be fastened and
worn. The front airbags, for example, are only
triggered in some cases of head-on collision.
The front airbags will not be triggered during
minor frontal or side collisions, rear-end colli-
sions, rollovers or accidents in which the air-
bag trigger threshold value in the control unit
is not exceeded.
Therefore, you should always wear your seat
belt and ensure that all vehicle occupants
have fastened their seat belts properly before
you drive off!
Safety instructions on using seat
belts –
Always wear the seat belt as described in
this section.
– Ensure that the seat belts can be fastened
at all times and are not damaged. WARNING
● If seat belts are worn incorrectly or not at
all, the risk of severe injuries increases. The
optimal protection from seat belts can be
achieved only if you use them properly.
● Fasten your seat belt before every trip -
even when driving in town. Other vehicle oc-
cupants must also wear the seat belts at all
times, otherwise they run the risk of being in-
jured.
● The seat belt cannot offer its full protection
if the seat belt is not positioned correctly.
● Never allow two passengers (even children)
to share the same seat belt.
● Always keep both feet in the footwell in
front of your seat as long as the vehicle is in
motion.
● Never unbuckle a seat belt while the vehi-
cle is in motion. Risk of fatal injury.
● The seat belt must never be twisted while it
is being worn.
● The seat belt should never lie on hard or
fragile objects (such as glasses or pens, etc.)
because this can cause injuries.
● Do not allow the seat belt to be damaged or
jammed, or to rub on any sharp edges.
● Never wear the seat belt under the arm or
in any other incorrect position.
● Loose, bulky clothing (such as an overcoat
over a jacket) impairs the proper fit and func-
tion of the seat belts, reducing their capacity
to protect. 44

Safety
do not cause any injuries or environmental
pollution, regulations, which are known to
the specialised workshops, must be ob-
served. WARNING
● Improper use or repairs not carried out by
qualified mechanics increase the risk of se-
vere or fatal injuries. The belt tensioners may
fail to trigger or may trigger in the wrong cir-
cumstances.
● Never attempt to repair, adjust, remove or
install parts of the belt tensioners or seat
belts.
● The seat belt tensioner, seat belt and auto-
matic retractor cannot be repaired.
● Any work on the belt tensioners and seat
belts, including the removal and refitting of
system parts in conjunction with other repair
work, must be performed by a specialised
workshop only.
● The belt tensioners will only provide pro-
tection for one accident and must be changed
if they have been activated. 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 sitting position must
be assumed.
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 ef-
fectively when the vehicle occupants are
wearing their seat belts correctly and have
adjusted the head restraints properly. There-
fore, it is most important to properly wear the
seat belts at all times, not only because this
is required by law in most countries, but also
for your safety
›››
page 43, The reasons why
we should wear seat belts .
The airbag inflates in a matter of seconds, so
if you are not properly seated when the air-
bag is triggered, you may sustain fatal inju-
ries. Therefore, it is essential that all vehicle
occupants assume a correct sitting position
while travelling.
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 occu-
pant. This also applies to children.
Always maintain the greatest possible dis-
tance between yourself and the front airbag.
This way, the front airbags can completely
deploy when triggered, providing their maxi-
mum protection.
The most important factors that will trigger
an airbag are: the type of accident, the angle
of collision and the speed of the vehicle.
Whether or not the airbags are triggered de-
pends primarily on the vehicle deceleration
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 speci-
fied reference values, the front, side and/or
curtain airbags will not be triggered. Take in-
to account that the visible damage in a vehi-
cle 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 assum-
ing an incorrect sitting position can lead to
critical or fatal injuries.
● All vehicle occupants, including children,
who are not properly belted can sustain criti-
cal or fatal injuries if the airbag is triggered.
Children up to 12 years old should always 48

Airbag system
travel on the rear seat. Never transport
children in the vehicle if they are not restrain-
ed or the restraint system is not appropriate
for their age, size or weight.
●
If you are not wearing a seat belt, or if you
lean forward or to the side while travelling or
assume an incorrect sitting position, there is
a substantially increased risk of injury. This
increased risk of injury will be further in-
creased if you are struck by an inflating air-
bag.
● To reduce the risk of injury from an inflating
airbag, always wear the seat belt properly
››› page 43.
● Alw
ays adjust the front seats properly. Description of airbag system
The airbag system is not a substitute for the
seat belts. The airbag system offers addition-
al protection for the driver and passenger in
combination with the seat belts.
The airbag system comprises the following
modules (as per vehicle equipment):
●
Electronic control unit
● Front airbags for driver and passenger
● Knee airbag for the driver
● Side airbags
● Head airbag ●
Airbag control lamp  on the instrument
panel
● Key-operated switch for front passenger air-
bag
● Control lamp to disconnect/connect the
front airbag.
The airbag system operation is monitored
electronically. The airbag control lamp will il-
luminate for a few seconds every time the ig-
nition is switched on (self-diagnosis).
There is a fault in the system if the control
lamp :
● does not light up when the ignition is
switched on,
● turns off after 4 seconds after the ignition
is switched on
● turns off and then lights up again after the
ignition is switched on
● illuminates or flashes while the vehicle is
moving.
The airbag system is not triggered if:
● the ignition is switched off
● there is a minor frontal collision
● there is a minor 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 38, Sitting position
for vehicle occupants .
● If a fault has occurred in the airbag system,
have the system checked immediately by a
specialised workshop. Otherwise there is a
danger that during a collision, the system
may fail to trigger, or not trigger correctly. Airbag activation
The airbags deploy extremely rapidly, within
thousandths of a second, to provide addi-
tional protection in the event of an accident.
A fine dust may develop when the airbag de-
ploys. This is normal and it is not an indica-
tion of fire in the vehicle.
The airbag system is only ready to function
when the ignition is on.
In special accidents instances, several air-
bags may activate at the same time.
In the event of minor head-on and side colli-
sions, rear-end collisions, overturning or roll-
over of the vehicle, airbags
do not activate.
Activation factors
The conditions that lead to the airbag system
activating in each situation cannot be gener-
alised. Some factors play an important role, »
49
Technical specifications
Advice
Operation
Safety
The essentials

Safety
such as the properties of the object the vehi-
cle hits (hard/soft), angle of impact, vehicle
speed, etc.
Deceleration trajectory is key for airbag acti-
vation.
The control unit analyses the collision trajec-
tory and activates the respective restraint
system.
If the deceleration rate is below the prede-
fined reference value in the control unit the
airbags will not be triggered, even though
the accident may cause extensive damage to
the car.
The following airbags are triggered in
serious head-on collisions
● Driver airbag.
● Front passenger front airbag
● Knee airbag for the driver.
The following airbags are triggered in
serious side-on collisions
● Front side airbag on the side of the acci-
dent.
● Rear side airbag on the side of the acci-
dent.
● Curtain (head) airbag on the side of the ac-
cident. In an accident with airbag activation:
●
the interior lights switch on (if the interior
light switch is in the courtesy light position);
● the hazard warning lights switch on;
● all doors are unlocked;
● the fuel supply to the engine is cut. Airbag overview
Front airbags Fig. 66
Driver airbag located in steering
wheel. 50

Airbag system
Fig. 67
Front passenger airbag located in
dash panel. The front airbag for the driver is located in
the steering wheel
››› Fig. 66 and the airbag
f or the fr
ont passenger is located in the dash
panel ››› Fig. 67. Airbags are identified by the
wor

d “AIRBAG”.
The airbag covers fold out of the steering
wheel and dashboard respectively when the
driver and front passenger airbags are de-
ployed ››› Fig. 66 ››› Fig. 67
. The airbag covers
rem
ain connected to the steering wheel or
the dash panel. In conjunction with the seat belts, the front
airbag system gives the front occupants ad-
ditional protection for the head and chest in
the event of a severe frontal collision
››› .
The special design of the airbag allows the
controlled escape of the propellant gas when
an occupant puts pressure on the bag. Thus,
the head and chest are surrounded and pro-
tected by the airbag. After the collision, the
airbag deflates sufficiently to allow visibility. WARNING
● 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 de-
ployed.
● It is also important not to attach any ob-
jects such as cup holders or telephone
mountings to the surfaces covering the air-
bag units.
● Do not attempt to modify components of
the airbag system in any way. Types of front passenger front airbag
systems
There are two different SEAT front passenger
front airbag systems:
A
Characteristics of the front passenger front airbag that
can only be disabled in a specialised workshop
.
– Control lamp  on the instrument panel.
– Front passenger front airbag on the dash panel.
Name: airbag system.
B
Characteristics of the front passenger front airbag that
can be disabled manually ››› page 55.
– Control lamp  on the instrument panel.
– Control lamp on the instrument panel  
  .
– Control lamp on the instrument panel  
  .
– Key-operated switch in the glove compartment on the
front passenger side of the dashboard.
– Front passenger front airbag in the dashboard.
Name: airbag system with front passenger front airbag
disabling. 51
Technical specifications
Advice
Operation
Safety
The essentials

Safety
Knee airbag* Fig. 68
On the driver side: location of the
knee airbag Fig. 69
On the driver side: radius of action of
the knee airbag. The knee airbag is located on the driver side
below the dash panel
››› Fig. 68 . Airbags are
identified b y
the word “AIRBAG”.
The area framed in red ››› Fig. 69
is covered
by the knee airbag when it is deployed (de- ployment area). Therefore, objects should
never be placed or mounted in these areas. WARNING
● The knee airbag is deployed in front of the
driver's knees. Always keep the deployment
areas of the knee airbags free.
● Never not fix objects to the cover or in the
deployment area of the knee airbag.
● Adjust the driver seat so that there is a dis-
tance of at least 10 cm (4 inches) between
your knees and the location of the this air-
bag. If your physical constitution prevents
you from meeting these requirements, make
sure you contact a specialised workshop. Side airbags*
Fig. 70
Side airbag in driver seat. Fig. 71
Illustration of completely inflated side
airbags on the left side of the vehicle. The side airbags are located in the backrest
cushions of the driver seat
››› Fig. 70 and the
fr ont

passenger seat as well as in the back-
rest of the side rear seats*. The locations are
identified by the text “AIRBAG” in the upper
region of the backrests.
Together with the seat belts, the side airbag
system gives the front seat occupants addi-
tional protection for the upper body in the
event of a severe side collision ››› .
In a side collision, the side airbags reduce
the risk of injury to passengers on the front
seats to the areas of the body facing the im-
pact. In addition to their normal function of
protecting the occupants in a collision, the
seat belts also hold the passengers in the
front seats and the outer rear seats in a posi-
tion where these airbags can provide maxi-
mum protection.
52

Airbag system
WARNING
● If you do not wear a seat belt, if you lean
forward, or are not seated correctly while the
vehicle is in motion, you are at a greater risk
of injury if the side airbag system is triggered
in an accident.
● In order for the side airbags to provide their
maximum protection, the prescribed sitting
position must always be maintained with
seat belts fastened while travelling.
● In a side-on collision the side airbags will
not work if the sensors do not correctly meas-
ure the pressure increase on the interior of
the doors, due to air escaping through the
areas with holes or openings in the door pan-
el.
● Never drive if the interior door panels have
been removed or if the panels have not been
correctly fitted.
● Never drive the vehicle if the loudspeakers
in the door panels have been removed, un-
less the holes left by the loudspeakers have
been closed properly.
● Always check that the openings are closed
or covered if loudspeakers or other equip-
ment are fitted inside the door panels.
● Occupants of the outer seats must never
carry any objects or pets in the deployment
space between them and the airbags, or al-
low children or other passengers to travel in
this position. It is also important not to at-
tach any accessories (such as cup holders) to the doors. This would impair the protection
offered by the side airbags.
●
The built-in coat hooks should be used only
for lightweight clothing. Do not leave any
heavy or sharp-edged objects in the pockets.
● Great forces, such as hard blows or kicks,
must not be exerted upon the backrest bol-
ster because the system may be damaged. In
this case, the side airbags would not be trig-
gered.
● Under no circumstances should protective
covers be fitted over seats with side airbags
unless the covers have been approved for use
in your vehicle. Because the airbag deploys
from the side of the backrest, the use of con-
ventional seat covers would obstruct the side
airbag, seriously reducing the airbag's effec-
tiveness.
● Any damage to the original seat upholstery
or around the seams of the side airbag units
must be repaired immediately by a special-
ised workshop.
● The airbags provide protection for just one
accident; replace them once they have de-
ployed.
● Any work on the side airbag system or re-
moval and installation of the airbag compo-
nents for other repairs (such as removal of
the front seat) should only be performed by a
specialised workshop. Otherwise, faults may
occur during the airbag system operation.
● Do not attempt to modify components of
the airbag system in any way. Head-protection airbags*
Fig. 72
Location of head-protection airbags. The head-protection airbags are located on
both sides in the interior above the doors
››› Fig. 72 and are identified with the text
“AIRB AG”.
In c
onjunction with the seat belts, the head-
protection airbag system gives the vehicle
occupants additional protection for the head
and upper body in the event of a severe side
collision ››› .
WARNING
● In order for the head-protection airbags to
provide their maximum protection, the pre-
scribed sitting position must always be main-
tained with seat belts fastened while travel-
ling.
● For safety reasons, the curtain airbag must
be disabled in those vehicles fitted with a
screen dividing the interior of the vehicle. » 53
Technical specifications
Advice
Operation
Safety
The essentials