VOLKSWAGEN UP! 2022 Service Manual

Warning lamp
Fig. 42 Warning lamp in the instrument cluster
Fig. 43 Seat belt status for the rear seats in the instrument cluster display
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Lights
up or
flashes
Possible causeSolution
The driver seat belt and, if the front
passenger seat is occupied, the front
passenger seat belt are not fastened.
Fasten seat belts.
There are objects on the front
passenger seat.
Remove objects from the front passenger
seat and stow them safely.
Incorrectly fastened or unfastened seat belts increase the risk of severe or fatal injuries. Seat
belts will only offer the optimum level of protection when they are fastened and used properly.
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Lights
up or
flashes
Possible causeSolution
Seat belt not fastened for a rear seat
passenger.Fasten the seat belt.
Seat belt fastened for a rear seat
passenger.
Several warning and indicator lamps will light up briefly as a functional check when the ignition is
switched on. They will switch off after a few seconds.
An acoustic signal will sound for a few seconds if the seat belts are not fastened as the car pulls off
and reaches a speed of more than approximately 25 km/h (15 mphyfRULIWKHVHDWEHOWVDUH
unfastened while the vehicle is in motion. The warning lamp will also flash.
When the ignition is switched on, the warning lamp will not go out until the driver and front
passenger fasten their seat belts.
Belt status display for the rear seats
After the ignition has been switched on, the belt status display ⇒ Fig. 43 in the instrument cluster
display shows the driver whether the rear seat passengers have fastened their seat belts. The
 symbol indicates that the passenger on this seat has fastened his or her seat belt.
The belt status display will be shown for approximately 30 seconds if a seat belt is fastened or
unfastened on the rear seats. The display can be hidden by pressing the  button in
the instrument cluster.
If a seat belt for one of the rear seats is unfastened while the vehicle is in motion, the belt status
display will flash for a maximum of 30 seconds. If the vehicle is travelling faster than approximately
25 km/h (15 mphyfDQDFRXVWLFVLJQDOZLOODOVRVRXQG.
Frontal collisions and the laws of physics
Fig. 44 Unbelted occupants in a vehicle heading for a brick wall
Fig. 45 Unbelted occupants in a vehicle striking a brick wall
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The physical principles involved in a frontal collision are relatively simple. As soon as the vehicle is
in motion ⇒ Fig. 44, both the moving vehicle and its passengers gain kinetic energy.
The higher the vehicle speed and the heavier the weight of the vehicle, the greater the amount of
energy that will have to be released in the event of an accident.
However, the most significant factor is the speed of the vehicle. If the speed doubles from
approximately 25 km/h (15 mphyfWRDSSUR[LPDWHO\bNPKbPSK\f, for example, the kinetic
energy increases by a factor of four.
The amount of kinetic energy depends on the speed of the vehicle and the weight of the vehicle
and passengers. The higher the speed and the heavier the weight, the greater the amount of
energy that will be released in the event of an accident.
Incorrectly fastened or unfastened seat belts increase the risk of severe or fatal injuries. Seat
belts only offer the optimum level of protection when they are used properly.
WARNING

Passengers not wearing seat belts are not connected to the vehicle. In the event of a frontal
collision they will continue to move forwards at the same speed at which the vehicle was travelling
before impact, until something stops them. Because the passengers in our example are not
restrained by seat belts, the entire amount of kinetic energy will only be released at the point of
impact against the wall ⇒ Fig. 45.
Even at speeds of approximately 30 km/h (18 mphyfWRDSSUR[LPDWHO\bNPKbPSK\f, the forces
acting on bodies in a collision can easily exceed one tonne (1,000 kgyf7KHVHIRUFHVDUHHYHQ
greater at higher speeds.
This example applies not only to frontal collisions, but to all accidents and collisions.
What happens to vehicle occupants who have not fastened their seat
belts
Fig. 46 An unbelted driver is thrown forwards
Fig. 47 The unbelted rear passenger is thrown forwards, hitting the belted driver
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Many people believe that they can brace their weight with their hands in a minor collision. This is
not true.
Even at low speeds, the forces acting on the body in a collision are so great that occupants cannot
brace themselves with their arms and hands. In a frontal collision, unbelted vehicle occupants are
thrown forwards and will make unchecked contact with parts of the vehicle interior, e.g. the steering
wheel, dash panel, or windscreen ⇒ Fig. 46.
The airbag system is not a substitute for the seat belts. When triggered, the airbags only provide
additional protection. Airbags are not triggered in all kinds of accidents. Even if the vehicle is
equipped with an airbag system, all vehicle occupants, including the driver, must fasten their seat
belt and wear it correctly while the vehicle is in motion. This reduces the risk of severe or fatal
injuries in the event of an accident \f

Check the condition of all seat belts regularly.
Keep the seat belts clean.
Never let any foreign bodies or fluids get on to the seat belt, the latch plate or into the slot
for the seat belt buckle.
Do not trap or damage the seat belt and latch plate, for example when closing the door.
Never remove, modify or repair the seat belt or any part of the belt fixture system.
Always fasten the seat belt correctly before every journey and keep it fastened while the
vehicle is in motion.
Fig. 48 Driver restrained by a properly positioned seat belt during a sudden braking manoeuvre
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Correctly fastened seat belts can make a major difference. When fastened properly, seat belts hold
the vehicle occupants in the correct sitting positions and considerably reduce the kinetic energy in
the event of an accident. Seat belts also help to prevent uncontrolled movements that could lead to
severe injuries. In addition, wearing seat belts properly reduces the risk of being thrown from the
vehicle ⇒ Fig. 48.
Passengers wearing seat belts correctly benefit greatly from the ability of the belts to reduce the
kinetic energy. The front crumple zones and other passive safety features (such as the airbag
systemyfDUHDOVRGHVLJQHGWRUHGXFHNLQHWLFHQHUJ\7KHDPRXQWRIHQHUJ\JHQHUDWHGZLOOWKXV
decrease, thereby reducing the risk of injury.
The 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 seat belts must be fastened before every
trip \f

Fig. 49 Inserting the seat belt latch plate into the buckle
Fig. 50 Removing the latch plate from the buckle
First read and observe the introductoryinformation and safety warnings⇒
Introduction
During an accident or braking manoeuvre, correctly worn seat belts hold the vehicle occupants in
position in such a way as to provide maximum protection ⇒.
Fastening the seat belts
Fasten seat belts before every trip.
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Fig. 52 Correct seat belt routing during pregnancy
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Seat belts only provide an optimum level of protection during an accident when they are routed
correctly. Correct seat belt routing reduces the risk of severe or fatal injuries. Correct seat belt
routing also holds the vehicle occupants in position so that an inflating airbag can offer the
maximum level of protection. Therefore you must always fasten your seat belt and ensure that the
seat belt routing is correct.
Assuming an incorrect sitting position can cause severe or fatal injuries ⇒ Adjusting the seat
position.
Correct seat belt routing
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The belt tensioners are activated by sensors during severe frontal, side and rear collisions. They
tighten the seat belts against the direction in which they are pulled. A loose seat belt is retracted,
which can reduce the forward movement or the movement of the vehicle occupants in the direction
of the impact. The belt tensioner works together with the airbag system. If the side airbags are not
activated, the belt tensioner will not be activated if the vehicle rolls over.
A fine dust may be produced when the airbags are triggered. This is quite normal and does not
mean that there is a fire in the vehicle.
Belt tension limiter
The belt tension limiter reduces the pressure exerted by the seat belt on the body during an
accident.
All safety requirements must be observed when the vehicle or components of the system are
scrapped. Qualified workshops are familiar with these requirements ⇒ Service and disposal of belt
tensioners.
Service and disposal of belt tensioners
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Seat belts may become damaged during any work on the belt tensioners or while removing or
refitting any vehicle parts in conjunction with any other repair work. This damage will not always be
noticeable. The consequence may be that the belt tensioners could function incorrectly, or not
function at all, in the event of an accident.
Regulations must be observed to ensure that the effectiveness of the belt tensioner is not reduced
and that removed parts do not cause any injuries or environmental pollution. Qualified workshops
are familiar with these requirements.
The airbag modules and belt tensioners may contain perchlorate. Please comply with
legislation regarding disposal.
Airbag system
 Introduction
This chapter contains information on the followingsubjects:
⇒ Types of front passenger front airbag system
⇒ Indicator lamps
⇒ Description and function of the airbags
⇒ Front airbags
⇒ Switching the front passenger front airbag on and off manually using the key-operated switch
⇒ Side airbags
The vehicle is equipped with a front airbag for the driver and front passenger. The front airbags can
provide front seat occupants with additional chest and head protection if the seat, seat belts, head
restraints and, in the case of the driver, steering wheel are adjusted and used correctly. Airbags are
meant only for additional protection. The airbags are not a substitute for seat belts. Seat belts must
always be worn, even when the front seats are equipped with front airbags.
Additional information and warnings:
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Types of front passenger front airbag system
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Never rely solely on the airbag system for your protection.
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Volkswagen offers 2 different front airbag systems for front passengers:
AB
Features of the front passenger front
airbag that can only be switched off
by a qualified workshop.
Features of the front passenger front
airbag that can be switched off
manually using the key-operated
switch ⇒ Switching the front passenger front
airbag on and off manually using the key-
operated switch.
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When an airbag is triggered, it is inflated by a gas generator. This causes the airbag covers to
break, and the airbags inflate forcefully to cover their deployment zones within milliseconds. Once a
vehicle occupant wearing a seat belt starts to sink into the inflated airbag, the gas inside the airbag
starts to escape to cushion the occupant and slow down their movement. This can reduce the risk
of severe and fatal injuries. A triggered airbag will not always prevent other injuries such as
swelling, bruising and grazing. Deployment of a triggered airbag can also result in frictional heat.
Airbags provide no protection for the arms or lower body.
The most important factors for triggering the airbag are the type of accident, the angle of impact,
the vehicle speed and the type of object with which the vehicle collides. Therefore, visible damage
to the vehicle does not always mean that the airbag should have been triggered.
The triggering of the airbag system depends on the vehicle deceleration rate caused by the collision
and registered by the electronic control unit. If this rate is below the reference value programmed
into the control unit, the airbags will not be triggered, even though the vehicle may be badly
damaged as a result of the collision. Vehicle damage, repair costs or even the lack of vehicle
damage in an accident do not necessarily give an indication of whether an airbag should inflate or
not. It is not possible to define a range of vehicle speeds and reference values, since the
circumstances will vary considerably between one collision and another. It is therefore impossible to
cover every possible kind and angle of impact that would trigger the airbags. Important factors in
the triggering of the airbag include the nature (hard or softyfRIWKHREMHFWWKDWWKHYHKLFOHKLWVWKH
angle of impact, and the vehicle speed.
Airbags only serve as a supplement to the three-point seat belt in some accident situations when
the vehicle braking is sufficient to trigger the airbags. Airbags can only be triggered once and only
in certain situations. The seat belts are always there to provide protection in situations in which the
airbags are not triggered or have already been triggered. For example, if the vehicle collides with a
further vehicle following the initial collision, or is hit by another vehicle.
The airbag system is part of the vehicle's overall passive safety concept. The airbag system can
only work effectively when the occupants are wearing their seat belts correctly and have assumed a
proper sitting position ⇒ Adjusting the seat position.
Components of the vehicle safety concept
The following vehicle safety equipment makes up the vehicle's safety concept to reduce the risk of
severe and fatal injuries. Some of this equipment may not be fitted in your particular vehicle. It may
not be available at all in some countries.
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