2012 Seat Mii warning

56Ensuring you are correctly and safely seated
WARNING
People whose pain and temperature threshold has been affected by some
kind of medicine, paraplegia or chronic illness (e.g. diabetes) may sus-
tain burns to the back, buttocks and legs from use of the seat heating
that may lead to a long healing process or that may never completely
heal. Seek medical advice if you have doubts regarding your health.
● People with a limit pain and temperature threshold must never use
seat heating.
CAUTION
● To avoid damaging the heating elements of the seat heating, please do
not kneel on the seat or apply sharp pressure at a single point to the seat
cushion and backrest.
● Liquids, sharp objects and insulating materials on the seat could dam-
age the seat heating.
● In the event of smells, switch off the seat heating immediately and have
the unit inspected by a Specialised workshop.
For the sake of the environment
The seat heating should remain on only when needed. Otherwise, it is an
unnecessary fuel consumption. 

57
Ensuring you are correctly and safely seated
Seat belts
Introduction
Check the condition of all the seat belts at regular intervals. If you notice
that the belt webbing, fittings, retractor mechanism or buckle of any of the
belts is damaged, the belt must be replaced immediately by a Specialised
workshop ⇒ 
. The Specialised workshop must use the appropriate spare
parts corresponding to the vehicle, the equipment and the model year. SEAT
recommends visiting a Technical Service.
Additional information and warnings:
● Adjust the seat position ⇒ page 48
● Airbag system ⇒ page 67
● Child seats (accessories) ⇒ page 76
● Accessories, parts replacement, repairs and modifications ⇒ page 222
WARNING
Unbuckled or badly buckled seat belts increase the risk of severe or even
fatal injuries. The seat belt cannot offer its full protection if it is not fas-
tened and used correctly.
● Seats belts are the most effective ways of reducing the risk of sus-
taining severe or fatal injuries In the event of an accident. Correctly fas-
ten seat belts when the vehicle is in motion to protect the driver and all
vehicle occupants.
● Before each trip, every occupant in the vehicle occupants must sit
properly, correctly fasten the seat belt belonging to his or her seat and
keep it fastened throughout the trip. This also applies to other occupants
when driving in town.
WARNING (Continued)
● When travelling, children must be secured in the vehicle with a child
restraint system suitable for their weight and height and with the seat
belts correctly fastened ⇒ page 76.
● Instruct your passengers to fasten their seat belts properly before
driving off.
● Insert the latch plate into the buckle for the appropriate seat and en-
sure it is engaged. Using the latch plate in the buckle of another seat will
not protect you properly and may cause severe injuries.
● Do not allow liquids or foreign bodies to enter the buckle fastenings.
This could damage the buckles and seat belts.
● Never unbuckle your seat belt when the vehicle is moving.
● Never allow more than one passenger to share the same seat belt.
● Never hold children or babies on your lap sharing the same seat belt.
● Loose, bulky clothing (such as a jacket) impairs the proper fit and
function of the seat belt.
WARNING
It is extremely dangerous to drive using damaged seat belts and could re-
sult in serious injury or loss of life.
● Avoid damaging the seat belt by jamming it in the door or the seat
mechanism.
● If the fabric or other parts of the seat belt are damaged, the seat belts
could break in the event of an accident or sudden braking.
● Always have damaged seatbelts replaced immediately by seat belts
approved for the vehicle in question by SEAT. Seat belts which have been
worn in an accident and stretched must be replaced by a Specialised
workshop. Renewal may be necessary even if there is no apparent dam-
age. The belt anchor points should also be checked.
● Never attempt to repair, modify or remove a seat belt yourself. All re-
pairs to seat belts, retractors and buckles must be carried out by a Speci-
alised workshop.

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58Ensuring you are correctly and safely seated
Warning lamp
Fig. 35 Warning lamp on
the instrument panel
Fig. 36 Indication of
seat belt status in the
rear seats on the instru-
ment panel display
Lights
up or
flashesPossible causeSolution

On the instrument panel: Driver's
seat belt not fastened or front pas-
senger seat belt not fastened if the
front passenger's seat is occupied.
Fasten seat belts!
On the instrument panel: Objects
on the front passenger seat.Remove any objects from
the front passenger seat
and store them safely.

Instrument panel display: A pas-
senger in the rear seats has not
fastened their seat belt, if the seat
is occupied. *
Fasten seat belts!

On the instrument panel display: A
passenger in the rear seats has
fastened their seat belt, if the seat
is occupied.*

Several warning and control lamps light up for a few seconds when the igni-
tion is switched on while a test of the function is being carried out. They will
switch off after a few seconds.
An audible warning will be heard if the seat belts are not fastened as the
vehicle drives off and reaches a speed of more then 25 km/h (15 mph) or if
the seat belts are unfastened while the vehicle is in motion. The seat belt
warning lamp  will also flash.
The warning lamp  does not switch off until the driver and front passenger
fasten their seat belts while the ignition is switched on.
Seat belt status display for rear seats
The seat belt status display on the instrument panel display informs the
driver, when the ignition is switched on, whether any passengers in the rear
seats have fastened their seat belts. The symbol  indicates that the pas-
senger in this seat has fastened “his or her” seat belt ⇒ Fig. 36.

59
Ensuring you are correctly and safely seated
The seat belt status is displayed for around 30 seconds when a seat belt in
the rear seats is fastened or unfastened. You can switch off this display by
pressing the 0.0 / SET
button.
The seat belt status flashes for a maximum of 30 seconds when a seat belt
in the rear seats is unfastened while the vehicle is in motion. An audible
warning will also be heard if the vehicle is travelling at over 25 km/h
(15 mph).
WARNING
Unbuckled or badly buckled seat belts increase the risk of severe or even
fatal injuries. The optimal protection from seat belts can be achieved only
if you use them properly.

Frontal collisions and the laws of physics
Fig. 37 Vehicle about to
hit a wall: the occupants
are not wearing seat
belts
Fig. 38 The vehicle hits
the wall: the occupants
are not wearing seat
belts
It is easy to explain how the laws of physics work in the case of a head-on
collision: when a vehicle starts moving ⇒ Fig. 37, this is a certain amount of
energy known as “kinetic energy” both in the vehicle and in the occupants.
The higher the speed and the greater the weight of the vehicle, the more
energy there is to be absorbed in an accident.
The most significant factor, however, is the speed of the vehicle. If the
speed doubles from 25 km/h (15 mph) to 50 km/h (30 mph), for example,
the kinetic energy is multiplied by four.
The amount of “kinetic energy” depends on the speed of the vehicle and
the weight of the vehicle and its passengers. The higher the speed and the
greater the weight of the vehicle and the occupants, the more energy there
is to be absorbed in an accident.
Vehicle occupants not wearing seat belts are not “attached” to the vehicle.
As a result, in a frontal collision they will continue to move forward at the
speed their vehicle was travelling just before the impact until something
stops them! Because the passengers in our example are not restrained by
seat belts, all of the vehicle occupants' kinetic energy has to be absorbed at
the point of impact ⇒ Fig. 38.

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62Ensuring you are correctly and safely seated
Checklist (Continued) ¥ Never remove, modify or repair the seat belt or belt fastening mecha-
nisms.
¥ Fasten your seat belt properly before each trip and keep it fastened.
Twisted seat belt
If it is difficult to remove the seat belt from the guide, the seat belt may
have become twisted inside the side trim after being wound too quickly on
unfastening:
●
Pull out the seat belt completely, carefully pulling on the latch plate.
● Untwist the belt and guide it back, assisting it by hand.
Fasten the seat belt even if it is impossible to untwist it. In this case, the
twisted area must not be in an area in direct contact with your body. Have
the seat belt untwisted urgently by a Specialised workshop.
WARNING
An improperly handled seat belt increases the risk of sustaining severe
or fatal injuries.
● Regularly check that the seat belts and their components are in per-
fect condition.
● Always keep your seat belt clean.
● Do not jam or damage the seat belt or rub it with sharp edges.
● Make sure there are no liquids or foreign bodies on the latch plate
and in the buckle.
 Fastening or unfastening a seat belt
Fig. 42 Insert the latch
plate into the buckle
Fig. 43 Release the latch
plate from the buckle
Properly worn seat belts hold the vehicle occupants in the position that
most protects them in the event of an accident or sudden braking ⇒ 
.

63
Ensuring you are correctly and safely seated
Fastening the seat belt
Fasten your seat belt before each trip.
● Correctly adjust the front seat ⇒ page 48.
● Engage the seat backrest in the upright position and correctly adjust the
hear restraint ⇒ 
.
● Pull the latch plate and place the belt webbing evenly across your chest
and lap. Do not twist the seat belt when doing so ⇒ 
.
● Engage the latch plate in the buckle of the corresponding seat ⇒ Fig. 42.
● Pull the belt to ensure that the latch plate is securely engaged in the
buckle.
Unfastening the seat belt
The seat belt must not be unfastened until the vehicle has come to a stand-
still ⇒ 
. ●
Press the red button on the buckle ⇒ Fig. 43. The latch plate is released
from the buckle.
● Guide the belt back by hand so that it rolls up easily and the trim will not
be damaged.
WARNING
An incorrectly worn seat belt web can cause severe or fatal injuries in the
event of an accident.
● The seat belt cannot offer its full protection unless the backrests are
in an upright position and the seat belt is worn correctly, according to
your size.
● Unbuckling your seat belt while the vehicle is in motion can cause se-
vere or fatal injuries in the event of an accident or sudden braking.

Seat belt position
Fig. 44 Correct seat belt position 
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64Ensuring you are correctly and safely seated
Fig. 45 Correct position-
ing of seat belts during
pregnancy
Seat belts offer their maximum protection in the event of an accident and
reduce the risk of sustaining severe or fatal injuries only when they are
properly positioned. Furthermore, if the webbing is correctly positioned, the
seat belt will hold the occupants in the optimum position to ensure the air-
bag provides the utmost protection. The seat belt must therefore always be
worn and the webbing correctly positioned.
Incorrectly worn seat belts can cause severe or even fatal injuries
⇒  page 48, Adjusting the seat position.
Correct seat belt position
● The shoulder part of the seat belt must lie on the centre of the shoulder,
never across the neck or the arm, under the arm or behind the shoulder.
● The lap part of the seat belt must lie across the pelvis, never across the
stomach.
● The seat belt must lie flat and fit comfortably. Pull the seat belt tight if
necessary to take up any slack.
In the case of pregnant women , the seat belt must lie evenly across the
chest and as low as possible over the pelvis, never across the stomach.
Pregnant women must wear the seat belt properly at all times during the
pregnancy ⇒ Fig. 45. Adapting the position of the seat belt webbing to your size
The seat belt can be adapted using the following equipment:
●
Front seat height adjustment.
WARNING
An incorrectly worn seat belt web can cause severe injuries in the event
of an accident or sudden braking or manoeuvre.
● The seat belt cannot provide optimum protection if it is not correctly
worn and the backrest is not tilted slightly backwards.
● The seat belt itself or a loose seat belt can cause severe injuries if the
belt moves from hard areas of the body to soft areas (e.g. the stomach).
● The shoulder part of the seat belt must lie on the centre of the shoul-
der, never across the neck or the arm.
● The seat belt must lie flat and fit comfortably on the torso.
● The lap part of the seat belt must lie across the pelvis, never across
the stomach. The seat belt must lie flat and fit comfortably on the pelvis.
Pull the seat belt tight if necessary to take up any slack.
● Pregnant women must wear the lap part of the seat belt as low as
possible over the pelvis and always lie it flat, “surrounding” the stom-
ach.
● Do not twist the seat belt while it is fastened.
● Never pull the seat belt away from your body using your hand.
● Do not lie the seat belt across rigid or fragile objects, e.g. glasses,
pens or keys.
● Never use seat belt clips, retaining rings or similar instruments to al-
ter the position of the belt webbing. 

65
Ensuring you are correctly and safely seated
Note
If your physical constitution prevents you from maintaining the correct posi-
tion of the belt webbing, contact a Specialised workshop for help with any
special devices to ensure the optimum protection of the seat belt and air-
bag. SEAT recommends visiting a Technical Service. 
Automatic belt retainer, belt tension device, belt tension
limiter
Seat belts are part of the vehicle safety concept ⇒ page 67 and consist of
the following important functions:
Automatic belt retainer
Every seat belt is equipped with an automatic belt retainer on the shoulder
belt. If the belt is pulled slowly or during normal driving, the system allows
for total freedom of movement on the shoulder belt. However, during sud-
den braking, during travel in mountains or bends and during acceleration,
the automatic belt retainer on the seat belt is locked is pulled quickly.
Belt tension devices
The seat belts for the front occupants are equipped with belt tensioners.
Sensors will trigger the belt tension devices during severe head-on, lateral
and rear collisions and retract and tighten the seat belts. If the seat belt is
loose, it is retracted to reduce the forwards movement of occupants or
movement in the direction of the collision. The belt tension device works in
combination with the airbag system. The belt tension device will not be trig-
gered in the event of the vehicle overturning if the side airbags are not de-
ployed.
If the belt tension device is triggered, a fine dust is produced. This is normal
and it is not an indication of fire in the vehicle. Belt tension limiter
The belt tension limiter reduces the force of the seat belt on the body in the
event of an accident.
Note
The relevant safety requirements must be observed when the vehicle or
components of the system are scrapped. These requirements are known to
specialised workshops ⇒ page 65. 
Service and disposal of belt tension devices
If you work on the belt tension devices or remove and install other parts of
the vehicle when performing other repair work, the seat belt may be dam-
aged. The consequence may be that, in the event of an accident, the belt
tension devices function incorrectly or not at all.
Observe regulations so that the effectiveness of the belt tension device is
not reduced and that removed parts do not cause any injuries or environ-
mental pollution. These requirements are known to qualified dealerships.
WARNING
Improper handling and home-made repairs of seat belts, automatic belt
retainers and tension devices increase the risk of sustaining severe or fa-
tal injuries. The belt tension device may fail to trigger or may trigger in
the wrong circumstances.
● Never attempt to repair, adjust or remove or install parts of the belt
tension devices or seat belts. Any work must be performed by a special-
ised workshop only ⇒ page 222.
● Do not repair belt tension devices and automatic belt retainers. Re-
place them. 
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