Seat Mii 2018 Repair Manual

Seat belts
Seat belt tensioners Aut omatic belt r
etr
actor, belt ten-
sioner, belt tension limiter Seat belts are part of the vehicle safety con-
cept

Safety
Airbag system
Brief intr oduction
Intr oduction Front airbags have been installed for both
driver and passenger
. The fr
ont airbags can
also protect the chest and head of driver and
passenger if the seats, seat belts head re-
straints and, for the driver, the steering wheel
are correctly adjusted and used. Airbags are
considered as additional safety equipment.
An airbag cannot replace the seat belt, which
must be worn at all times, even in front seats
where front airbags have been installed.
The airbag can protect vehicle occupants in
the event of an accidents, cushioning the
movement of the occupants in the direction
of the collision in frontal and side accidents.
Deployed airbags fill with a propellant gas.
This causes the airbag covers to break and
the airbags to deploy extremely quickly in
their entire deployment space within frac-
tions of a second. When an occupant with the
seat belt properly fastened puts pressure on
the inflated airbag, the propellant gas es-
capes to absorb the force of the impact and
slow the movement. This reduces the risk of
severe or fatal injuries. Airbag deployment
does not mean that other types of injury such
as swelling, bruising and skin injuries can be ruled out. Upon deployment of the airbag,
friction can cause the generation of heat.
Airbags do not pr
ot

ect the arms or the lower
part of the body.
The most important factors for triggering the
airbag are the type of accident, the angle of
impact, the vehicle speed and the character-
istics of the object the vehicle hits. Therefore,
airbags are not triggered every time the vehi-
cle is visibly damaged.
The activation of the airbag system depends
on the magnitude of the deceleration of the
vehicle caused by a collision, which registers
through an electronic control unit. If the de-
celeration magnitude value is below the ref-
erence value programmed in the control unit,
the airbags will not deploy even though seri-
ous damage might be caused to the vehicle
as the result of an accident. Damage suf-
fered by the vehicle, reparation costs or ab-
sence of damage suffered from the accident
are not indications of whether an airbag
should have been deployed. Due to the vary-
ing nature of collision situations, it is impossi-
ble to define a speed range of the vehicle
and reference values. For this reason, it is not
possible to cover all types of collisions and
collision angles resulting in the deployment of
the airbag. Factors necessary for the airbag
to be deployed can be, the characteristics of
the object (hard or soft) against which the ve-
hicle collides, the collision angle and the ve-
hicle speed. Airbags act in conjunction with the three-
point seat belts in certain accident situations,
when the v
ehicle deceleration rate is severe
enough to trigger the airbags. Airbags only
deploy once and only under certain circum-
stances. Seat belts remain present to offer
protection in situations where airbags are not
triggered or where they have already de-
ployed. For example, when a vehicle hits an-
other after an initial collision or is hit by an-
other vehicle.
The airbag system is an integral part of the
car

Airbag system
WARNING
Occupants sitting in the front of the vehicle
must nev er carry any ob
jects in the deploy-
ment space between them and the airbags,
as this increases the risk of sustaining inju-
ries if the airbag is triggered. This modifies
the airbag deployment space or the ob-
jects may fly uncontrollably and hit your
body.

Safety

Airbag system

Safety
Deactivating airbags Contr ol l
amps Fig. 75
Control lamp for disabling the front
passenger fr ont airbag on the dash panel T
It lights up on the combi-instru-
ment
Fault in airbag system and seat belt tensioners.
Have the syst em check
ed immediately by a special-
ised workshop.  
It lights up on the dash panel
Fault in airbag system.
Have the system check
ed immediately by a special-
ised workshop.
Front passenger front airbag disabled.
Check whether the airbag should r emain disabl

ed.Several warning and control lamps light up
f
or a f
e

w seconds when the ignition is switch- ed on, signalling that the function is being
verified. They will swit

ch off after a few sec-
onds.
If the front passenger airbag is deactivated,
the lamp      does not re-
main lit, or if it is lit together with the control
lamp T on the instrument panel, there may
be a fault in the airbag system

Transporting children safely
How to know whether the front passenger
fr ont airbag is disabl
ed
The
only indication of the front passenger
airbag being disabled is that the      control lamp on the dash panel re-
mains lit (  stays yellow)

Safety
Important information regarding
the fr ont passenger

Transporting children safely
Child seats Saf et
y instructions Read the additional information carefully

Safety
Specific child seat regulations for each
country (sel ection)
Chil d seats must comply with the ECE-R 44 1)
r
egulation. You can get additional information
by consulting your SEAT dealership or at the
internet address www.seat.es.
Categorisation of child seats according to
ECE-R 44 Weight
category W
eight of
the chil
dAge
Group 0
up to 10 kg up to approx. 9
months
Group 0+ up to 13 kg up to approx. 18
months
Group 1 9 to 18 kg approx. 8 months to
3 1
/ 2 years
Group 2 15 to 25 kg 3 to 7 years approx.
Group 3 22 to 36 kg 6 to 12 years approx. Not all children fit in the seat of their weight
gr
oup
. Nor do all seats adapt t

o the vehicle.
Therefore, always check whether the child fits properly in the child seat and whether the
seat can be installed saf

ely in the vehicle.
Child seats approved under the ECE-R 44
regulation are fitted with the corresponding
approval symbol. The sign is an upper-case E
in a circle with the identification number be-
low it.
Use of the child seat on the front
passenger seat 2) Transporting children on the front passenger
seat is not permitt
ed in all countries. Further
-
mor

e, not all child seats are approved for use
on the front passenger seat. Your SEAT deal-
ership has an updated list of all approved
child seats. Only used child seats that are
approved for each vehicle.
The front airbag on the front passenger side
is highly dangerous for a child. The front pas-
senger seat is life-threatening to a child if he
or she is transported in a rear-facing child
seat.
If a rear-facing child seat is secured to the
front passenger seat, an inflating front airbag can strike it with such great force that severe
or fatal injuries may r

esult