Get Safety -> Operation of the airbags Guide for Seat Leon 4 Door Fourth Generation (2021-2026)

Airbag system

The control unit analyses the collision trajec-

tory and activates the respective restraint

system.

In an accident with airbag activation:

Several warning and control lamps light up

for a few seconds when the ignition is switch-

ed on, signalling that the function is being

verified. They will switch off after a few sec-

onds.

●

the interior lights switch on (if the interior

light switch is in the courtesy light position);

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 hazard warning lights switch on;

all doors are unlocked;

If the airbag and seat belt tensioner system

control lamp  remains on or flashes, it indi-

cates a malfunction in the airbag and seat

the fuel supply to the engine is cut;

in hybrid vehicles, the high voltage system

belt tensioner system

. Have the system

›››

is switched off;

checked immediately by a specialised work-

shop.

The following airbags are triggered in seri-

ous head-on collisions:

●

an emergency call is started page 43.

›››

●

Driver airbag.

If the front passenger airbag is deactivated,

the warning lamp      re-

mains lit on the dash panel to remind you that

the airbag is deactivated. If, with the front

passenger airbag deactivated, this lamp

does not remain lit or if it is lit along with the

control lamp  on the instrument panel,

Front passenger front airbag

Knee airbag for the driver.

Head airbags (depending on the severity of

Operation of the airbags

Airbag system control lamps

It lights up on the combi-instru-

the crash).



In the event of serious side collisions,

some (or all) of the following airbags can

be activated (depending on the severity of

the collision):

there is a fault in the airbag system

. If

the control lamp is flashing, there is a fault in

the disabling of the airbag system . Have

›››

ment

Fault in the airbag system and seat belt tensioners .

Have the system checked immediately by a special-

ised workshop.

›››

the system checked immediately by a speci-

alised workshop.

●

Curtain (head) airbag on the side of the ac-

cident.

It lights up on the roof console

 

WARNING

●

Front side airbag on the side of the acci-

dent.

Front passenger front airbag deactivated.

Check if the airbag should be kept deactivated

In the event of a fault in the airbag and seat

belt tensioner system, the airbags and seat

belts may not trigger correctly, may fail to

trigger or may even trigger unexpectedly.

●

Rear side airbag on the side of the acci-

dent.

It lights up on the roof console

 

●

Central airbag.

●

The vehicle occupants run the risk of sus-

Front passenger front airbag activated.

The control lamp turns off automatically 60 seconds

after the ignition is switched on

taining severe or fatal injuries. Have the

system checked immediately by a special-

ised workshop.

»

27

Safety

●

Do not mount a child seat in the front

WARNING

passenger seat or remove the mounted

child seat! The front passenger front airbag

may deploy during an accident in spite of

the fault.

●

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

CAUTION

one accident; replace them once they have

deployed.

Always pay attention to any lit control

lamps and to the corresponding descrip-

tions and instructions to avoid damage to

the vehicle or harm to the occupants.

●

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.

Fig. 19 Front passenger airbag located in

dash panel.

The driver's front airbag is housed in the

steering wheel and that of the front passen-

ger, on the dash panel. Airbags are identified

by the word “AIRBAG”.

Front airbags

The airbag covers fold open and remain at-

tached to the steering wheel Fig. 18 and

›››

the dash panel Fig. 19when the driver and

›››

front passenger airbags, respectively, are

triggered.

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

.

›››

Fig. 18 Driver airbag located in steering

wheel.

Their special design allows the controlled es-

cape of the propellant gas when an occu-

pant puts pressure on the bag. Thus, the

head and chest are protected by the airbag.

After the collision, the airbag deflates suffi-

ciently to allow visibility.

28

Airbag system

SEAT recommends fitting the child seat in the

rear seat to avoid having to deactivate the

front passenger airbag.

Activate and deactivate front pas-

senger front airbag

WARNING

●

The driver of the vehicle is responsible for

disabling or switching on the airbag.

When the front passenger airbag is deacti-

vated, this means that only the front passen-

ger front airbag is deactivated. All the other

airbags in the vehicle remain activated.

●

Always switch off the ignition before dis-

abling the front passenger airbag! Failure

to do so could result in a fault in the airbag

deactivation system.

●

Never leave the key in the airbag disa-

Deactivate and activate the front passen-

ger front airbag

bling switch as it could get damaged or en-

able or disable the airbag during driving.

●

Switch the ignition off.

●

If for any reason an airbag is deactivated,

reactivate it as soon as possible so that it

can fulfil its protective function.

Open the door on the front passenger side.

Insert the key into the slot of the switch for

Fig. 20 Switch for activating and deactivating

deactivating the front passenger airbag

Fig. 20. About 3/4 of the key should enter;

the front passenger airbag.

›››

this is as far as it will go.

●

Turn the key gently to change its position to

 (deactivate) or to  (activate). If you have

difficulty, ensure that you have inserted the

key as far as it will go.

●

Close the front passenger door.

When deactivating the airbag, switch the

ignition on and check that the control lamp

  remains lit where it says   

in the roof console Fig. 21.

›››

Fig. 21 On the roof console: control lamp for

the deactivation of the front passenger front

airbag.

●

When reactivating the airbag, check that

when the ignition is switched on, the  

control lamp does not light up and the  

lamp lights up for 60 seconds and then turns

off.

Deactivate the front passenger front airbag

only if you have to use a rear-facing child

seat in the front passenger seat.

29

Safety

it is deployed. Objects should never be

placed or mounted in this area.

Knee airbag

WARNING

●

The knee airbag is deployed in front of

the driver's knees. Always keep the deploy-

ment 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's seat so that there is a

Fig. 25 Fully inflated central airbag (deploy-

ment zone).

distance of at least 10 cm (4 inches) be-

tween your knees and the location of the

this airbag. If your physical constitution

prevents you from meeting these require-

ments, make sure you contact a special-

ised workshop.

Fig. 22 On the driver side: location of the knee

airbag

The central airbag is installed for the front

seats and is located in the inner padding of

the driver's seat backrest.

The location of the central airbag is indicated

by the inscription “AIRBAG” Fig. 24.

›››

Central airbag

When triggered, the central airbag fills the

zone marked in red (deployment zone)

Fig. 25. For this reason, never place or fix

›››

objects in this zone

.

›››

The central airbag triggers in the case of a

side collision or if the vehicle overturns, re-

ducing the risk of vehicle occupants suffering

injuries.

Fig. 23 On the driver side: airbag action radius

for the knees.

The knee airbag is located on the driver side

WARNING

below the dash panel Fig. 22. Airbags are

›››

When triggered, the airbag inflates at high

speed in milliseconds.

identified by the word “AIRBAG”.

Fig. 24 In the inner padding of the driver's seat

backrest: central airbag.

The area framed in red (deployment area)

●

Always keep the central airbag deploy-

ment zone clear.

Fig. 23 is covered by the knee airbag when

›››

30

Airbag system

Side airbags

The locations are identified by the text “AIR-

BAG” in the lower region of the backrests.

●

Never attach objects to the central air-

bag cover or the deployment zone.

●

Do not allow other people, animals or ob-

In conjunction with the seat belts, the side air-

bag system provides additional protection for

the upper body in the event of a severe side

jects to get between the occupants of the

front seats and the airbag deployment

zone. Make sure that all vehicle occupants,

including children, follow this rule.

collision

.

›››

In a side collision, the side airbags reduce the

risk of injury to passengers to the areas of the

body facing the impact. In addition to their

normal protection, the seat belts also hold

the passengers in the event of a side collision;

this is how these airbags provide maximum

protection.

●

Never use upholstery or seat covers that

have not been explicitly authorised for the

seats of the vehicle. Otherwise, the side air-

bag will not be able to deploy if triggered.

WARNING

Improper manipulation of the driver and

front passenger seats can prevent the cen-

tral airbag from operating correctly and

cause serious injuries.

Fig. 26 Side airbag in driver's seat.

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.

●

Never remove the front seats from the ve-

hicle or modify their components.

●

If the backrest side bolsters are subjec-

ted to a lot of force, the central airbag may

not trigger correctly,it may not trigger at

all or if may trigger unexpectedly.

●

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.

●

Have a specialised repair shop immedi-

ately repair any damage to the original

seat upholstery or seams in the area of the

central airbag module.

●

In a side-on collision the side airbags will

Fig. 27 Illustration of completely inflated side

airbags on the left side of the vehicle.

not work if the sensors do not correctly

measure the pressure increase on the inte-

rior of the doors, due to air escaping

through the areas with holes or openings in

the door panel.

The side airbags are located in the backrests

of the front seats and in the sides of the rear

seat, depending on the vehicle's configura-

●

Never drive if the interior door panels

tion Fig. 26, Fig. 27.

›››

have been removed or if the panels have

not been correctly fitted.

»

31

Safety

Fig. 28 and are identified with the text

“AIRBAG”.

›››

●

Never drive the vehicle if the loudspeak-

Any damage to the original seat uphols-

ers in the door panels have been removed,

unless the holes left by the loudspeakers

have been closed properly.

tery or around the seams of the side airbag

units must be repaired immediately by a

specialised workshop.

In combination with the seat belts, the head-

protection airbag system gives the vehicle

occupants additional protection for the up-

per body in the event of a severe side colli-

●

Always check that the openings are

The airbags provide protection for just

closed or covered if loudspeakers or other

equipment are fitted inside the door pan-

els.

one accident; replace them once they have

deployed.

sion or the vehicle overturning

.

›››

●

Any work on the side airbag system or re-

The area framed in red is covered by the

head-protection airbag when it is deployed

Fig. 28 (deployment area). Therefore, ob-

●

Occupants of the outer seats must never

moval and installation of the airbag com-

ponents 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.

carry any objects or pets in the deploy-

ment space between them and the airbags,

or allow children or other passengers to

travel in this position. It is also important

not to attach any accessories (such as cup

holders) to the doors. This would impair the

protection offered by the side airbags.

›››

jects should never be placed or mounted in

this area

.

›››

In the event of a side collision the head-pro-

tection airbag is triggered on the impact side

of the vehicle.

●

The built-in coat hooks should be used

Head-protection airbags

The head-protection airbags reduce the risk

of injury to passengers in the front and rear

side seats facing the impact.

only for lightweight clothing. Do not leave

any heavy or sharp-edged objects in the

pockets.

●

Great forces, such as hard blows or kicks,

WARNING

must not be exerted upon the backrest bol-

ster because the system may be damaged.

In this case, the side airbags would not be

triggered.

●

In order for the head-protection airbags

to provide their maximum protection, the

prescribed sitting position must always be

maintained with seat belts fastened while

travelling.

●

Under no circumstances should protec-

tive covers be fitted over seats with side

airbags unless the covers have been ap-

proved for use in your vehicle. Because the

airbag deploys from the side of the back-

rest, the use of conventional seat covers

would obstruct the side airbag, seriously

reducing the airbag's effectiveness.

●

For safety reasons, the head-protection

airbag must be disabled in those vehicles

fitted with a screen dividing the interior of

the vehicle. See your technical service to

make this adjustment.

Fig. 28 Location of head-protection airbags.

The head-protection airbags are located on

both sides in the interior above the doors

●

There must be no other persons, animals

or objects between the occupants of the

32

Safety -> Operation of the airbags for Your Seat Leon 4 Door Fourth Generation (2021-2026)

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