2012 Seat Leon 5D airbag off

10Safe driving
Sitting position for vehicle occupants
Introduction
WARNING
● The front seats, head restraints and seat belts must always be adjus-
ted to the size of the vehicle occupant to provide you and your passen-
gers with the greatest possible protection.
● Ensure your correct sitting position before setting off, and do not
change this during the journey. Also advise your passengers to ensure
their correct sitting positions not to be changed.
● A vehicle occupant sitting in an incorrect position is at risk of serious
injury in the event that an airbag is activated.
● If the passengers in the rear seats are not sitting in an upright posi-
tion, they are more likely to be injured due to the incorrect position of the
seat belts.
● It is important that the driver keeps at a minimum of 25 cm from the
steering wheel. It is important that the passenger keeps at a minimum of
25 cm from the dash panel. The airbag system will not be able to give the
required protection if the minimum distance is not observed. This can
cause a risk of fatal injury!
● When driving, always hold the steering wheel with both hands on the
outside part at the 9 o'clock and 3 o'clock positions. Never hold the
steering wheel at the 12 o'clock position, or in any other manner (e.g. in
the centre of the steering wheel or along its interior edge). In such cases,
if the airbag is triggered, you may sustain injuries to the arms, hands
and head.
● The backrests must not be reclined too far back while driving. This
could limit the effect of the seat belts and the airbag system. Risk of in-
jury!
WARNING (Continued)
● Objects must not be placed in the footwell, as they could move to the
area of the pedals in the event of a braking manoeuvre or change of direc-
tion. This would prevent the clutch, brake or accelerator from being
pressed.
● Always keep your feet on the footwell when the vehicle is moving;
never rest them on the dash panel, on the window or on the seat! An in-
correct sitting position exposes you to an increased risk of injury in case
of a sudden braking or an accident. If the airbag is triggered, you could
sustain severe injuries due to an incorrect sitting position!


23
Seat belts
Seat belt protection
Passengers not wearing seat belts risk severe injuries in the
event of an accident.
Fig. 10 A driver wearing
the seat belt properly is
secured by the belt in
sharp braking
Properly worn seat belts hold the vehicle occupants in the correct sitting po-
sitions and substantially reduce the kinetic energy in the event of an acci-
dent. Seat belts also help to prevent uncontrolled movements that could
lead to severe injuries. In addition, properly worn seat belts reduce the dan-
ger of being thrown from the vehicle.
Vehicle occupants wearing their seat belts correctly benefit greatly from the
ability of the belts to absorb kinetic energy. The front part of your vehicle
and other passive safety features (such as the airbag system) are also de-
signed to absorb the kinetic energy released in a collision. Taken together,
all these features reduce the releasing kinetic energy and consequently, the
risk of injury.
Our examples describe frontal collisions. Of course, properly worn seat belts
substantially reduce the risk of injury in all other types of accidents. This is
why it is so important to fasten seat belts before every trip, even when "just
driving 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 in a seri-
ous accident. Furthermore, properly worn seat belts improve the protection
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 airbags, the seat belts must be fas-
tened and worn. The front airbags, for example, are only triggered in some
frontal accidents. The front airbags will not be triggered during minor frontal
collisions, minor side collisions, rear collisions, overturns or accidents in
which the airbag 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
If seat belts are used correctly, they can considerably reduce
the risk of injury in an accident.
– 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. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

28Seat belts
–Guide the belt back by hand so that it rolls up easily and the
trim is not damaged.
WARNING
Never unbuckle a seat belt while the vehicle is in motion. If you do, you
increase the risk of sustaining severe or fatal injuries.

Incorrectly fastened seat belts
Incorrectly worn seat belts can cause severe or even mortal
injuries. Seat belts can provide optimal protection only if the belt web is
properly worn. The seat belts must be fastened exactly in the order
described in this chapter. An incorrect sitting position impairs sub-
stantially the protection a seat belt offers and can lead to severe or
fatal injuries. The risk of severe or fatal injuries is especially in-
creased when a deploying airbag strikes a vehicle occupant who
has assumed an incorrect sitting position. As the driver, you are re-
sponsible for yourself and all passengers, especially children.
Therefore:
– Never allow anyone to wear the seat belt incorrectly while the
vehicle is moving ⇒ 
.
WARNING
● An incorrectly worn seat belt increases the risk of severe injuries.
● Before every trip, instruct your passengers to adjust their seat belts
properly and to wear them for the whole journey.
● Read and always observe information and warnings concerning the
use of seat belts ⇒ page 23.

Seat belt tensioners
Function of the seat belt tensioner
During a frontal collision, the seat belts on the front seats
are retracted automatically. The seat belts for the occupants in the front seats are equipped with belt
tensioners. Sensors will only trigger the belt tensioners during severe head-
on, lateral and rear collisions, and only if the seat belt is actually being
worn. This retracts and tightens the seat belts, reducing the forward motion
of the occupants.
The seat belt tensioner can be triggered only once.
The seat belt tensioners will not be triggered in the event of a light frontal,
side or rear collision, if the vehicle overturns or in situations where no large
forces act on the front, side or rear of the vehicle. 

31
Airbag 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 front 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 transpor-
ted 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 44. When transporting children, use a child seat suitable for the
age and size of each child ⇒ page 47.
For those vehicles that do not include a key lock switch to turn the airbag
off, a Technical Service must be consulted.
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 project it with great force against the door, the roof or the back-
rest.
● For those vehicles that do not include a key lock switch to turn the
airbag off, a Technical Service must be consulted.
● 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 44.
– Child seats 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.

Safety FirstOperating instructionsPractical TipsTechnical specifications

33
Airbag system
Control lamp
Fig. 16 Control lamp for
disabling the front pas-
senger front airbag on
the dash panel
lights upDigitPossible causeSolution
Instrument panelFault in airbag system and seat belt tensioners.Have the system checked immediately by a specialised
workshop.
 Dash panelFault in the airbag system.Have the system checked immediately by a specialised
workshop.
Front passenger front airbag disabled.Check whether the airbag should remain disabled.
 Dash panelFront passenger front airbag enabled.No solution. The control lamp switches off about 60 sec-
onds after ignition is turned on or after enabling of the
front passenger front airbag with the key lock switch.
Several warning and control lamps should light up for a few seconds when
the ignition is switched on, signalling that the function is being verified.
They will switch off after a few seconds.
If the PASSENGER AIR BAG   control lamp does not remain lit or if it is lit
together with the control lamp  on the instrument panel and the front pas-
senger front airbag is disabled, there may be a fault in the airbag system
⇒ 
. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

35
Airbag system
Front airbags
Description of front airbags
The airbag system is not a substitute for the seat belts.
Fig. 17 Driver airbag lo-
cated in steering wheel
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”.
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 37, 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 vehicle 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 control lamp  in the dash panel
The airbag system operation is monitored electronically. The airbag control
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 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
● lights up or flashes while the vehicle is moving 
Safety FirstOperating instructionsPractical TipsTechnical specifications

36Airbag 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, Sitting position for vehicle
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 injuries to the head or
chest.
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. 

39
Airbag system
Side airbags* Description of side airbags
The airbag system is not a substitute for the seat belts.
Fig. 23 Side airbag in
driver seat
The side airbags are located in the backrest cushions of the driver seat
⇒  Fig. 23 and the front passenger seat as well as in the rear seats*. The lo-
cations are identified by the text “AIRBAG” in the upper region of the backr-
ests.
Together with the seat belts, the side airbag system gives the front seat oc-
cupants additional protection for the upper body in the event of a severe
side collision ⇒ page 41, Safety notes on the operation of the side airbag
system.
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 impact. 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 position where the side airbags can provide maximum protection. 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. 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 side airbag system will not be triggered if:
● the ignition is switched off
● there is a minor side collision
● there is a frontal collision
● there is a rear-end collision
● the vehicle turns over
The main parts of the airbag system are:
● an electronic control and monitoring system (control unit)
● the side airbags in the sides of the backrests of the front and rear seats
● a control lamp  in the dash panel
The airbag system operation is monitored electronically. The airbag control
lamp will light up for approx. 4 seconds every time the ignition is switched
on (self-diagnosis).
WARNING
● In a side-on collision the side airbags will not work if the sensors do
not correctly measure the pressure increase on the interior of the doors,
due to air escaping through the areas with holes or openings in the door
panel.
● Never drive the vehicle if the interior panels have been removed.
● Never drive if the interior door panels have been removed or if the
panels have not been correctly fitted. 
Safety FirstOperating instructionsPractical TipsTechnical specifications