2021 VOLKSWAGEN UP! key battery

 Introduction
This chapter contains information on the followingsubjects:
⇒ Vehicle key
⇒ Mechanical vehicle key
⇒ Indicator lamp in the vehicle key
⇒ Replacing the battery
⇒ Synchronising the vehicle key
Additional information and warnings:
•Settings in the Volkswagen information system ⇒ Volkswagen information system
•Central locking system ⇒ Central locking system
•Starting and stopping the engine ⇒ Starting and stopping the engine
•Consumer information ⇒ Consumer information
•Manual opening and closing⇒ Manual opening and closing
Vehicle key
Fig. 16 Vehicle key
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Vehicle key
The key can be used to lock and unlock the car from a distance ⇒ Central locking system.
The remote control transmitter and the battery are integrated in the key. The receiver is located in
the vehicle interior. The remote control range is several metres around the vehicle when the battery
is fully charged.
If the vehicle cannot be opened and closed using the vehicle key, the vehicle key will have to be re-
synchronised ⇒ Synchronising the vehicle key, or the battery in the key replaced ⇒ Replacing the
battery.
Several vehicle keys can be used.
Opening and closing the key bit
Press button ⇒ Fig. 16① to release the key bit and open it.
To fold in, press button ① and simultaneously fold in the key bit until it clicks into place.
Swallowing batteries with a diameter of 20 mm or other lithium batteries can result in severe
or even fatal injuries within a very short period of time.
•Always keep the vehicle key, key ring with batteries, spare batteries, round cells and other
batteries that are larger than 20 mm out of the reach of children.
•Call for medical help immediately you suspect that someone has swallowed a battery.
DANGER
Improper or unsupervised use of the vehicle key can lead to accidents or injuries.
•Always take all vehicle keys with you every time you leave the vehicle. Children or
unauthorised persons could lock the doors and tailgate, start the engine, switch on the
ignition and thus operate electrical equipment, such as the electric windows.
•Never leave children or people requiring assistance alone in the vehicle. They could
become trapped in the vehicle in an emergency and may not be able to get themselves to
safety. For example, locked vehicles may be subjected to very high or very low
temperatures, according to season. This can cause serious injuries and illness or
fatalities, especially for small children.
•Never remove the vehicle key from the ignition lock when the vehicle is in motion. The
steering lock may be activated and you will no longer be able to steer the vehicle.
WARNING

Fig. 18 Indicator lamp in the vehicle key
First read and observe the introductoryinformation and safety warnings⇒
Introduction
If a button on the vehicle key is pressed briefly, the indicator lamp ⇒ Fig. 18 (arrow) flashes once.
The lamp will flash several times if the button is pressed and held, e.g. convenience closing of the
electric panorama sliding/tilting glass roof.
If the indicator lamp in the key does not light up when a button is pressed, the battery in the key
should be replaced ⇒ Replacing the battery.
Replacing the battery
Fig. 19 Vehicle key: opening the battery case cover
Fig. 20 Vehicle key: removing the battery
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Volkswagen recommends having the battery changed by a qualified workshop.
The battery is located on the rear side of the vehicle key underneath a cover.
Replacing the battery
•Fold out the key bit of the vehicle key ⇒ Opening and closing the key bit.
•Pull up the cover on the rear side of the vehicle key ⇒ Fig. 19 in the direction of the arrow ⇒.
•Using a suitable thin object, lever the battery out of the battery compartment ⇒ Fig. 20.
•Insert the new battery as shown ⇒ Fig. 20 and push it into the battery compartment against the
direction of the arrow ⇒.
•Fit the cover as shown ⇒ Fig. 19 and push it onto the vehicle key housing against the direction
shown by the arrow until it engages.
Dispose of discharged batteries in accordance with regulations governing the protection of
the environment.
The battery on the vehicle key may contain perchlorate. Please comply with any legal
requirements and regulations when handling and disposing of these batteries.
Synchronising the vehicle key
First read and observe the introductoryinformation and safety warnings⇒
Introduction
It may no longer be possible to lock or unlock the vehicle with the remote control if the  button
is pressed repeatedly outside of the effective range of the vehicle key. If this is the case, the vehicle
key should be re-synchronised as follows:
•Fold out the key bit of the vehicle key ⇒ Opening and closing the key bit.
•The vehicle key can be damaged if the battery is not changed properly.
•Unsuitable batteries can damage the vehicle key. Discharged batteries should only be
replaced with new batteries of the same voltage rating, size and specification.
•Ensure that the battery is fitted the right way round.
NOTICE

•Press the  button on the vehicle key. Remain standing close to the vehicle.
•Unlock the vehicle with the key bit within one minute. The synchronisation process is complete.
Central locking system
 Introduction
This chapter contains information on the followingsubjects:
⇒ Description of the central locking system
⇒ Locking or unlocking the vehicle from outside
⇒ Locking or unlocking the vehicle from the inside
⇒ SAFELOCK mechanism
The central locking system will only work correctly when all doors and the tailgate are properly
closed. The vehicle cannot be locked with the key if the driver door is open.
If the vehicle is unlocked and not used for a long time (e.g. in your own garage) the vehicle battery
could discharge or the engine may not start.
Additional information and warnings:
•Exterior views ⇒ Exterior views
•Vehicle key set ⇒ Vehicle key set
•Doors ⇒ Doors
•Tailgate ⇒ Tailgate
•Electric windows ⇒ Windows
•Electric panorama sliding/tilting glass roof ⇒ Electric panorama sliding/tilting glass roof
•Manual opening and closing ⇒ Manual opening and closing
Description of the central locking system
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The central locking system enables you to lock and unlock all doors and the tailgate from one point:
•From outside the vehicle with the vehicle key ⇒ Locking or unlocking the vehicle from outside.
•From inside the vehicle with the central locking button ⇒ Locking or unlocking the vehicle from
the inside.
Certain functions for the central locking system can be activated or deactivated by a qualified
workshop.
The doors and the tailgate can be locked or unlocked manually if the vehicle key or central locking
system fails.
Locking the vehicle after the airbags have been triggered
The entire vehicle is unlocked if the airbags are activated during an accident. After an accident, the
vehicle can be locked by one of the methods below, depending on the damage incurred.
FunctionAction
Locking the vehicle with the
central locking button.
– Switch off the ignition.
– Open one of the vehicle doors once.
– Press the central locking button .
Locking the vehicle using the
vehicle key.
– Switch off the ignition.
OR: remove the key from the ignition lock.
– Open one of the vehicle doors once.
– Lock the vehicle with the vehicle key.
Improper use of the central locking system could lead to serious injury.
•The central locking system locks all doors. Locking the vehicle from the inside may
prevent the doors from being opened unintentionally and unauthorised persons from
entering the vehicle. However, locked doors can delay assistance to passengers inside
the vehicle in the event of an accident or emergency.
•Never leave children or people requiring assistance alone in the vehicle. All doors can be
locked from the inside using the central locking button. This may mean that people lock
themselves in the vehicle. People locked in the vehicle may be subjected to very high or
very low temperatures.
•Temperatures inside a locked vehicle may reach extremes of heat or cold, according to
season. This can cause serious injuries and illness or fatalities, especially for small
children.
•Never leave anyone inside a locked vehicle. People in the vehicle could become trapped
in an emergency and may not be able to get themselves to safety.
WARNING

If the buttons on the vehicle key ⇒ Fig. 21 or one of the central locking buttons ⇒ Fig. 23 are
pressed repeatedly within a short period of time, the central locking system will switch off briefly to
prevent overloading. The vehicle is then unlocked for approximately 30 seconds. If the doors or the
tailgate are not opened during this time the vehicle will lock again automatically.
Locking or unlocking the vehicle from outside
Fig. 21 Buttons on the vehicle key
Fig. 22 Mechanical vehicle key
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Vehicles with central locking
FunctionButtons to be used in
the vehicle key
⇒ Fig. 21
Action with vehicle key ⇒ Fig. 21 in
the lock cylinder or with the
mechanical vehicle key ⇒ Fig. 22.
Unlocking the vehicle.Press the  button.Insert the vehicle key in the driver door lock
cylinder and turn anticlockwise.
Locking the vehicle.Press the  button.Insert the vehicle key in the driver door lock
cylinder and turn clockwise.
Unlocking the tailgate.Press the 
button ⇒ Tailgate.
Insert the vehicle key in the driver door lock
cylinder and turn anticlockwise.
Please note the following: Depending on which central locking function has been activated by a
qualified workshop, all of the doors and the tailgate are only unlocked when the button is
pressed twice.
The vehicle key will lock or unlock the vehicle only when the battery has enough power and the key
is located within a few metres of the vehicle.
•When the vehicle is locked, all turn signals will flash once as confirmation.
•When the vehicle is unlocked, all turn signals will flash twice as confirmation.
If the turn signals do not flash as confirmation, at least one of the doors or the tailgate is not closed.
The vehicle cannot be locked using the vehicle key if the driver door is still open. The vehicle will
lock again automatically within a few seconds of being unlocked if you do not open one of the doors
or the tailgate. This function prevents the vehicle from remaining unlocked if the unlocking button is
pressed by mistake.
Vehicles without central locking
FunctionAction carried out with key ⇒ Fig. 22 in the lock
cylinder.
Locking or unlocking the driver
door and the tailgate.
To unlock, insert the vehicle key in the driver door lock cylinder
and turn anticlockwise.
To lock, insert the vehicle key in the driver door lock cylinder
and turn clockwise.
Locking and unlocking the front
passenger door.
To unlock, insert the vehicle key in the passenger door lock
cylinder and turn anticlockwise.
To lock, insert the vehicle key in the front passenger door lock
cylinder and turn clockwise.
The opened driver door cannot be locked using the vehicle key.
In vehicles without a central locking system, locking and unlocking the passenger door does
not affect the interior light ⇒ Lights.

If you have to drive a right-hand drive vehicle in a left-hand drive country, or vice versa, the
asymmetric dipped beam headlights may dazzle oncoming traffic.
Therefore you may have to apply stickers to certain parts of the headlight lenses if you are driving
abroad. A qualified workshop can provide you with further information. Volkswagen recommends
using a Volkswagen dealership for this purpose.
Stickers may only be used on the headlights for a limited period. Please contact a qualified
workshop for a permanent alteration. Volkswagen recommends using a Volkswagen dealership for
this purpose.
Headlight range control, instrument and switch lighting
Fig. 63 Next to steering wheel: headlight range control
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Headlight range control
Depending on what level it is set to, the headlight range control ⇒ Fig. 63 adjusts the position of the
light cones in the headlights according to the load level of the vehicle. This gives the driver the best
visibility possible and means that oncoming traffic will not be dazzled ⇒.
The headlights can only be adjusted when the dipped beam headlights are switched on.
To adjust, turn the control ⇒ Fig. 63:
SettingVehicle load level
–Front seats occupied and luggage compartment empty.
1All seats occupied and luggage compartment empty.
2All seats occupied and luggage compartment fully loaded.
3Only the driver seat occupied and luggage compartment fully loaded.
Instrument and switch lighting
The instrument and switch lighting will have a constant brightness setting if the side lights or dipped
beam are switched on.
If you have different loads, you can select a position between the settings.
Interior and reading lights
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Button or positionFunction
Switching off the interior light.
Switching on the interior light.
Switching door contact switch on (central position).
The interior light is switched on automatically when the vehicle is
unlocked, a door is opened or the key is removed from the ignition
lock.
The light will go out a few seconds after all the doors are closed, the
vehicle is locked or the ignition is switched on.
Switching the individual reading lights on or off.
The interior lighting and reading lights switch off when the vehicle is locked or after a delay of
a few minutes when the vehicle key is removed from the ignition lock. This prevents the battery
from discharging.
a)
Heavy objects in the vehicle can cause the headlights to dazzle and distract other road users.
This can lead to accidents and serious injuries.
•The light cone should always be adjusted to the load level of the vehicle to ensure that
other road users are not dazzled.
WARNING
a)

Ignition lock
Fig. 93 Vehicle key positions
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The steering lock can be activated when there is no vehicle key in the ignition lock.
Vehicle key positions ⇒ Fig. 93
Ignition switched off. The vehicle key can be removed.
Ignition switched on. The steering lock can be released.
Engine is started. Release the vehicle key as soon as the engine starts. Once released,
the vehicle key moves back to position ①.
If the vehicle key is left in the ignition for a long period with the engine switched off, the
vehicle battery could discharge.
Switching the engine off while the vehicle is moving makes it more difficult to stop the vehicle.
This can lead to loss of control of the vehicle and to accidents and severe injuries.
•Braking and steering support systems, the airbag system, the belt tensioners and other
items of safety equipment in the vehicle are only active when the engine is running.
•The engine should only be switched off when the vehicle is stationary.
WARNING
The risk of serious injury can be reduced with the engine running or when starting the engine.
•Never start or run the engine in unventilated or closed spaces. The exhaust fumes contain
carbon monoxide, an odourless and colourless toxic gas. Carbon monoxide can cause
loss of consciousness and death.
•Never leave the engine running if you leave the vehicle unattended. The vehicle could
move suddenly or something unexpected may happen that may cause damage and
serious injuries.
•Never use a start booster. A start booster can explode and cause the engine to suddenly
run at high revs.
WARNING
The components of the exhaust system become very hot. This can cause fires and serious
injuries.
•Never park the vehicle where parts of the exhaust system can come into contact with
inflammable material underneath the vehicle, e.g. leaves, dry grass, spilt fuel.
•Never apply additional underseal or anti-corrosion coatings to the exhaust pipes, catalytic
converters or heat shields.
WARNING
Always take care when using the vehicle key as you could cause accidents or serious injuries.
•Always take all vehicle keys with you every time you leave the vehicle. The engine can be
started and electrical equipment such as the window controls can be operated. This can
cause serious injury.
•Never leave children or people requiring assistance alone in the vehicle. They could
become trapped in the vehicle in an emergency and may not be able to get themselves to
safety. For example, locked vehicles may be subjected to very high or very low
temperatures, according to season. This can cause serious injuries and illness or
fatalities, especially for small children.
•Never remove the vehicle key from the ignition lock when the vehicle is in motion. The
steering lock may be activated and you will no longer be able to steer the vehicle.
WARNING

Warning and indicator lamps
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Lit upPossible cause ⇒Solution
Handbrake is applied.⇒ Handbrake.
Brake system fault.
Do not drive on!
Seek expert assistance immediately ⇒ Fault
in the brake system.
Brake fluid level is too low.Do not drive on!
Check brake fluid level ⇒ Brake fluid level.
In conjunction with ABS indicator lamp
: ABS and EDV not functioning.
Do not drive on!
Seek expert assistance immediately ⇒ Fault
in the brake system.
ESC switched off by the system.Switch the ignition on and off. If necessary,
drive a short distance.
ESC fault.Proceed to a qualified workshop.
In conjunction with ABS indicator lamp
: ABS fault.
Proceed to a qualified workshop. The
vehicle can be braked without ABS.
Vehicle battery has been reconnected.
Drive a short distance at a speed of
15 – 20 km/h (10 – 12 mph). If the indicator
lamp remains lit up, the vehicle should be
checked by a qualified workshop ⇒ Vehicle
battery.
Traction Control fault or switched off for
system-related reasons.
Go to qualified workshop ⇒ Traction Control
System (TCS) or Traction Control (TC).
In conjunction with ESC indicator lamp 
: ABS fault.
Proceed to a qualified workshop. The
vehicle can be braked without ABS.
Driving with worn brake pads or with a faulty brake system can cause accidents and serious
injuries.
•If you have reason to believe that the brakes are worn down or the brake system is faulty,
go to a qualified workshop immediately and have the brake system checked and have any
worn brake pads replaced.
WARNING
Incorrect parking can cause serious injuries.
•Never remove the vehicle key from the ignition lock when the vehicle is in motion. The
steering lock may be activated and you will no longer be able to steer or control the
vehicle.
•Never park the vehicle where parts of the exhaust system can come into contact with
inflammable material underneath the vehicle, e.g. leaves, dry grass, spilt fuel.
•Always apply the handbrake fully when the vehicle is parked.
•Never leave children or people requiring assistance alone in the vehicle. They could
release the handbrake, move the selector lever or gearshift lever and thus set the vehicle
in motion. This can lead to accidents and serious injuries.
•Always take all vehicle keys with you every time you leave the vehicle. The engine can still
be started and electrical equipment such as the window controls still can be operated,
potentially causing serious injury.
•Never leave children or people requiring assistance alone in the vehicle. They could
become trapped in the vehicle in an emergency and may not be able to get themselves to
safety. For example, locked vehicles may be subjected to very high or very low
temperatures, according to season. This can cause serious injuries and illness or
fatalities, especially for small children.
WARNING
•To avoid unintentional movement when parking the vehicle, first apply the handbrake firmly
and then remove your foot from the brake pedal.
•Always take care when driving in car parks with protruding kerbstones or bollards. Objects
that protrude from the ground can damage the bumper and other components when
parking the vehicle. In order to avoid any damage, stop the vehicle before the wheels
touch the bollards or kerbs.
•Drive carefully through dips in the road, over driveways, ramps, kerbstones and other
objects. Low-lying vehicle components such as the bumper, spoiler and parts of the
running gear, engine or exhaust system could be damaged.
NOTICE

Avoid unnecessary loads
The lighter the vehicle, the more economical and environmentally-friendly it is. An extra weight of
100 kg can increase fuel consumption by up to 0.3 l/100 km.
Remove all unnecessary objects and loads from the vehicle.
Remove any unnecessary special equipment and accessories
The more aerodynamic a vehicle, the lower its fuel consumption. Special equipment and
accessories, such as roof carriers or bicycle carriers, make the vehicle less aerodynamic.
You should therefore remove any special equipment and luggage carriers that are not in use,
especially if you are going to be driving at high speeds.
Steering
 Introduction
This chapter contains information on the followingsubjects:
⇒ Warning and indicator lamps
⇒ Information on steering
Depending on its equipment level the vehicle may have power steering.
The power steering is not hydraulic. It is an electromechanical system. The advantage of this
steering system is that no hydraulic hoses, hydraulic oil, pumps, filter or other parts are required.
The electromechanical system reduces fuel consumption. A hydraulic system requires constant oil
pressure in the system, whereas an electromechanical steering system only needs an energy
supply while steering.
The power steering provided by the electromechanical steering system automatically adjusts to the
vehicle speed, steering wheel torque and steering wheel angle. The electromechanical steering
only functions when the engine is running.
Additional information and warnings:
•Starting and stopping the engine ⇒ Starting and stopping the engine
•Battery ⇒ Vehicle battery
•Tow-starting and towing ⇒ Tow-starting and towing
Warning and indicator lamps
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Lit upPossible causeSolution
The electromechanical steering is faulty
or not working.
The steering should be checked by a
qualified workshop as soon as possible.
Electromechanical steering function
reduced.
The steering should be checked by a
qualified workshop as soon as possible.
If the yellow warning lamp remains off after
the ignition has been restarted and you have
driven a short distance, you do not need to
consult a qualified workshop.
The vehicle battery has been
disconnected and reconnected.
Drive a short distance at a speed of
15 – 20 km/h (9 – 12 mph).
Several warning and indicator lamps will light up briefly as a functional check when the ignition is
switched on. They will go out soon afterwards.
If the power steering is not working, the steering wheel is difficult to turn, which makes it
difficult to steer the vehicle.
•The power steering only functions when the engine is running.
•Never allow the vehicle to roll if the engine is switched off.
•Never remove the vehicle key from the ignition lock when the vehicle is in motion. The
steering lock may be activated and you will no longer be able to steer the vehicle.
WARNING