2021 VOLKSWAGEN UP! warning light

It can take a few seconds for the acoustic or optical signals to be emitted.
Further information on the portable navigation device (delivered by Volkswagen) can be
found in the user's manual for the device ⇒ Accessories, modifications, repairs and renewal of
parts.
Cruise control system (CCS)
 Introduction
This chapter contains information on the followingsubjects:
⇒ Indicator lamp
⇒ Using the cruise control system (CCS)
The cruise control system (CCS) helps to maintain a specific preset speed during forward travel at
approx. 20 km/h (15 mph) and higher.
The CCS only slows the vehicle by easing off the accelerator, not by actively braking ⇒.
Additional information and warnings:
•Changing gear ⇒ Changing gear
•Accessories, modifications, repairs and renewal of parts ⇒ Accessories, modifications, repairs
and renewal of parts
Indicator lamp
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Lit upPossible cause
Cruise control system (CCS) is controlling the speed.
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.
Using the cruise control system (CCS)
The use of the cruise control system can lead to accidents and serious injuries if traffic does
not allow you to drive at a safe distance from the vehicle in front at a constant speed.
•Never use the CCS in heavy traffic, on steep or winding roads, or on slippery road
surfaces e.g. on snow, ice, wet roads, loose chippings, or on flooded roads.
•Never use the CCS when driving off-road or on unsurfaced roads.
•Adapt your speed and distance from the vehicles ahead to suit visibility, weather, road and
traffic conditions.
•Always switch cruise control off after use to avoid unintentional operation.
•It is dangerous to use a set speed that is too high for the prevailing road, traffic or weather
conditions.
•The CCS cannot maintain a constant speed when travelling downhill. The vehicle speed
can increase under its own weight. Shift down a gear or brake the vehicle using the foot
brake.
WARNING
Failure to observe the warning lamps could lead to your vehicle breaking down in traffic, and
to accidents and serious injuries.
•Never ignore any warning lamps that are lit up.
WARNING
Failure to observe the illuminated indicator lamps could lead to the vehicle being damaged.
NOTICE

FlashesPossible cause ⇒Solution
soiling, ice, roof load protruding over the
front) ⇒. Proceed to a qualified
workshop immediately and have the
system checked if it is constantly
unavailable.
When travelling between
5 – 30 km/h (3 – 19 mph): the city
emergency brake function was
switched off using the button
⇒ Fig. 109.
Switch on the city emergency brake
function using the button
⇒ Fig. 109.
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.
Laser sensor
Fig. 107 On the windscreen: laser sensor for the city emergency brake function
Fig. 108 Detection range of the laser sensor
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The system monitors the traffic in front of the vehicle using a laser sensor in the windscreen
⇒ Fig. 107.
Vehicles travelling ahead can thus be recognised up to a distance of approximately 10 m.
Failure to observe the warning lamps could lead to your vehicle breaking down in traffic, and
to accidents and serious injuries.
•Never ignore any warning lamps that are lit up.
•Stop the vehicle as soon as possible and when safe to do so.
WARNING
Failure to observe the illuminated indicator lamps could lead to the vehicle being damaged.
NOTICE

Switching city emergency brake function on and off
Fig. 109 In lower part of centre console: button for the city emergency brake function
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Switching the city emergency brake function on and off
•Press the ⇒ Fig. 109 button in the centre console.
When the city emergency brake function is switched off, the indicator lamp lights up
when the vehicle is travelling at 5 – 30 km/h (3 – 19 mph).
Switch off the city emergency brake function in the following situations
The city emergency brake function should be switched off in the following situations ⇒:
•If the vehicle is being towed.
•If you are driving the vehicle through an automatic car wash.
•If the vehicle is on a rolling road test bed.
•If the laser sensor is faulty.
•If the laser sensor has been hit or moved with force.
•If the vehicle is being driven off-road (e.g. through low-hanging branches).
•If there are protruding objects in the area above the bonnet, e.g. a load on the roof that sticks
out at the front.
•If the windscreen is damaged in the area around the laser sensor.
•Driving with tailgate open.
•In the event of multiple unwanted interventions.
The beam from the laser sensor could cause severe damage to the eyes.
•Never use optical devices, such as a rangefinder camera, microscope or magnifying glass,
to look into the laser sensor from a distance of less than 100 mm.
•Please be aware that the laser beam may still be active even if the city emergency brake
function is switched off or unavailable. The laser beam is not visible to the human eye!
WARNING
The city emergency brake function may not work if the area on the windscreen around the
laser sensor is iced over, dirty or covered, for example from rain, spray or snow or by roof
loads protruding over the front of the vehicle.
•Always keep the area around the laser sensor free from dirt and ice and do not cover it.
•Remove snow with a brush, and remove ice preferably with a solvent-free de-icer spray.
NOTICE
The city emergency brake function may fail to work if the windscreen is damaged in the area
around the laser sensor.
•Have the windscreen replaced if it is scratched, cracked or chipped in the area around the
laser sensor. Only use windscreens that have been approved by Volkswagen. Do not
simply have the windscreen repaired (for example, if it has been damaged by stone
chipping).
•When changing the windscreen wiper blades only use wiper blades that are the same
production quality as the factory-fitted wiper blades.
•Do not paint the windscreen in the area around the laser sensor or cover the area with
stickers, deposits or similar.
NOTICE

Special driving situations
Fig. 110 A: vehicle in a bend B: motorbike in front is outside the range of the laser sensor
Fig. 111 Vehicles changing lanes
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The city emergency brake function has physical and system-specific limits. In certain situations, the
driver may therefore feel that the city emergency brake function reacts too late or unexpectedly.
You should therefore always be prepared to take full control of the vehicle if necessary.
The following driving situations demand particular vigilance:
When driving through bends
When driving into or out of a long bend, the laser sensor may react to a vehicle in the adjacent lane
⇒ Fig. 110A and thus brake the vehicle. The braking effect can be stopped by pressing the
accelerator or clutch pedal or by steering the vehicle.
Narrow vehicles and a zig-zag traffic situation
Narrow vehicles and vehicles travelling slightly to the left or right of your vehicle will only be
recognised by the laser sensor once they have entered the range of the sensor ⇒ Fig. 110B. This
particularly applies to narrow vehicles such as motorcycles.
When other vehicles change lanes
Vehicles that are very close to you when they move into your lane could cause the city emergency
brake function to be applied unexpectedly ⇒ Fig. 111. The braking effect can be stopped by
pressing the accelerator or clutch pedal or by steering the vehicle.
Possible laser sensor function impairments
The city emergency brake function will switch off temporarily if the function of the laser sensor is
impaired due to heavy rain, spray, snow or mud, for example. The indicator lamp will flash in
the instrument cluster display.
The city emergency brake function is ready to work again as soon as the laser sensor returns to
normal function. The indicator lamp goes out.
The following conditions could prevent the city emergency brake function
from reacting:
•If ESC is active.
•In tight bends.
•If the vehicle is reversing.
•When you drive faster than 30 km/h for a few seconds.
•If the accelerator is fully depressed.
•If the city emergency brake function is switched off or if there is a fault in the system ⇒ Warning
and indicator lamps.
•If the laser sensor is dirty, covered or overheated ⇒ Laser sensor.
•In snow, heavy rain or thick fog.
•If vehicles are travelling slightly to the left or right of your vehicle.
•If vehicles are crossing in front of your vehicle.
Accidents and serious injuries could occur if you do not switch off the city emergency brake
function during any of the situations named above.
•Switch off the city emergency brake function during critical driving situations.
WARNING

•If vehicles are travelling towards you in the same lane.
•If the surrounding vehicles are very dirty and therefore not very reflective.
•If there is a lot of dust.
Air conditioning system
Heating, ventilating, cooling
 Introduction
This chapter contains information on the followingsubjects:
⇒ Controls
⇒ General information on the heating and fresh air system
⇒ Information on the air conditioning system
⇒ Vents
⇒ Air recirculation mode
Dust and pollen filter
The dust and pollen filter reduces the level of impurities in the outside air entering the vehicle.
The dust and pollen filter must be changed regularly to avoid impairing the performance of the air
conditioning system.
The dust and pollen filter must be changed more frequently than stated in the service schedule if
the efficiency of the filter declines prematurely due to the vehicle being used in areas with high
levels of air pollution.
Additional information and warnings:
•Exterior views ⇒ Exterior views
•Volkswagen information system ⇒ Volkswagen information system
•Windscreen wiper/washer ⇒ Windscreen wiper and washer
•Cleaning and caring for the vehicle exterior ⇒ Caring for and cleaning the vehicle exterior
If the cooling system is switched off, the outside air that is drawn into the vehicle is not
dehumidified. To prevent the windows misting over, Volkswagen recommends that you leave the air
conditioning (compressor) switched on. Press the button. The indicator lamp in the button
must light up.
Maximum heat output, which is needed to defrost the windows as quickly as possible, is only
available when the engine has reached its operating temperature.
Poor visibility through all windows increases the risk of collisions and accidents, which can
cause serious injuries.
•Always ensure that all windows are free of ice, snow and mist to ensure good visibility.
•Maximum heat output, which is needed to defrost the windows as quickly as possible, is
only available when the engine has reached its operating temperature. Do not start your
journey until you have good visibility.
•Always ensure that the heating and fresh air system or the air conditioning system and the
heated rear window are used correctly in order to have good visibility.
•Never use the air recirculation mode for an extended period. If the cooling system is
switched off, the windows can mist up very quickly in air recirculation mode and reduce
visibility considerably.
•Always switch off the air recirculation mode when it is not required.
WARNING
Stale air can quickly cause tiredness and lack of concentration in the driver, which in turn can
cause collisions, accidents and serious injuries.
•Never switch off the blowers or switch on the air recirculation mode for an extended period
as this prevents fresh air from entering the vehicle interior.
WARNING
•Switch off the air conditioning system if you suspect that it has been damaged. This can
help to prevent further damage. The air conditioning system should be checked by a
qualified workshop.
•Repairs to the air conditioning system require specialist knowledge and special tools.
Volkswagen recommends using a Volkswagen dealership for this purpose.
NOTICE

General information on the heating and fresh air system
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The required interior temperature cannot be lower than the outside temperature as the heating and
fresh air system cannot cool or dehumidify the air.
Settings for optimal road visibility
•Set blower ⇒ Fig. 112② to level 1 or 2.
•Open and position all vents on the dash panel ⇒ Vents.
•Turn the air distribution controller ⇒ Fig. 112③ to the defrost position.
Information on the air conditioning system
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The cooling system for the vehicle interior only works when the engine is running and the blower is
switched on.
The air conditioning system operates most effectively with the windows and the electric panorama
sliding and tilting glass roof closed. However, if the vehicle has heated up after standing in the sun
for some time, the air inside can be cooled more quickly by opening the windows and the electric
panorama sliding and tilting glass roof for a short time.
Settings for optimal road visibility
Switching the cooling system on not only reduces the temperature of the vehicle interior, but also
the humidity. This improves comfort for the vehicle occupants and prevents the windows from
misting when the outside humidity is high.
•Switch off air recirculation mode ⇒ Air recirculation mode.
•Set the blowers to the required level.
•Open and position all vents on the dash panel ⇒ Vents.
•Turn the air distribution controller to the defrost position.
•Press the button to switch the cooling system on. The indicator lamp in the button
lights up.
The cooling system cannot be switched on
The following criteria may prevent the cooling system from being switched on:
•The engine is not running.
•The blower is switched off.
•The air conditioning system fuse has blown.
•The ambient temperature is lower than approximately +2℃ (+36°F).
•The compressor has been temporarily switched off because the coolant temperature is too high.
•There is a different fault in the vehicle. The air conditioning system should be checked by a
qualified workshop.
Things to note
If the humidity and temperature outside the vehicle are high, condensation can drip off the
evaporator in the cooling system and form a pool underneath the vehicle. This is normal and does
not indicate a leak.
The windscreen may mist up after starting the engine due to residual humidity in the air
conditioning system. Switch the defrost function on in order to clear the windscreen of condensation
or mist as quickly as possible.
Vents
Fig. 114 In the dash panel: vents
First read and observe the introductoryinformation and safety warnings⇒
Introduction

Fig. 115 In the instrument cluster: variant A: fuel gauge for petrol, variant B: fuel gauge for petrol
Fig. 116 In the instrument cluster display: fuel gauge for petrol
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The fuel gauge can vary according to the vehicle equipment level ⇒ Fig. 115 or ⇒ Fig. 116.
Lit upNeedle position
⇒ Fig. 115
Possible cause ⇒Solution
Red marking ①
Fuel tank nearly empty.
Reserve quantity is being used
⇒ Capacities.
Fill the tank with petrol
as soon as possible ⇒
.
Blue marking ②
Natural gas fuel tank nearly
empty.
Reserve quantity is being used.
Refuel with natural gas
as soon as possible ⇒
.
Flashes for
approximately
10 seconds
Position of the
bar ⇒ Fig. 116
Possible cause ⇒Solution
Reserve fuel
marking flashes for
approximately 10
seconds (four small
segments)
Fuel tank nearly empty.
Reserve quantity is being used
⇒ Capacities.
Fill the tank as soon as
possible ⇒.
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.
Natural gas engines
Things to note: if the vehicle is parked for an extended period directly after refuelling, it may well
occur that the pointer for the natural gas engine does not indicate the fuel level shown directly after
refuelling. This does not mean that there is a leak in the system but but rather that, for technical
reasons the pressure has been decreased in the natural gas tank.
The small arrow next to the petrol pump symbol ⇒ Fig. 115 in the display instrument shows
you the side of the vehicle on which the tank flap is located.
Only applies for vehicles with a fuel gauge in the instrument cluster ⇒ Fig. 115.
Only applies for vehicles with a fuel gauge in the instrument cluster display ⇒ Fig. 116.
Filling the tank with petrol
a)
b)
Driving the vehicle when the fuel level is too low could lead to your vehicle breaking down in
traffic, accidents and serious injuries.
•When the fuel level is too low, the fuel supply to the engine could be irregular, especially
when driving up or down hills and inclines.
•The steering, all driver assist systems and brake assist systems will not function if the
engine sputters or stops completely due to a lack of fuel or irregular fuel supply.
•Always fill the tank when it is still 1/4 full. This reduces the risk of running out of fuel and
breaking down.
WARNING
•To avoid damage to your vehicle, always observe the indicator lamps and associated
warning texts.
•Do not run the tank empty. Irregular filling periods can cause backfiring and allow unburnt
fuel to enter the exhaust system. This could cause damage to the catalytic converter!
NOTICE
a)
b)

Fig. 117 Open tank flap with tank cap attached to the holder
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Switch off the engine, ignition and the mobile telephone before filling the tank and leave them
switched off during the process.
Opening the tank cap
•The tank flap is at the rear of the vehicle on the right.
•Open the tank cap by the moulding to the rear.
•If necessary, fold the key bit out of the vehicle key ⇒ Vehicle key set.
•Insert the vehicle key in the tank flap lock and turn anticlockwise.
•Turn the tank cap anticlockwise and hook it on top of the tank flap ⇒ Fig. 117.
Filling the tank
The correct fuel grade for your vehicle is shown on a sticker on the inside of the tank flap ⇒ Fuel.
•The fuel tank is full when the (properly operated) automatic filler nozzle clicks off for the first
time ⇒.
•Do not continue filling the tank after it switches off. The expansion space in the fuel tank will
otherwise fill up and the fuel could spill out. This could also happen when the fuel warms up and
expands.
Closing the tank cap
•Turn the tank cap clockwise into the fuel filler neck until it perceptibly engages.
•Turn the vehicle key in the lock cylinder of the tank flap clockwise and pull it out.
•Close the tank flap. The tank flap must be flush with the vehicle bodywork.
Natural gas engines
Run the petrol tank empty every 6 months until the indicator lamp  lights up. This is necessary to
maintain necessary system function for petrol mode and fuel quality.
Fuels can pollute the environment. Any spilt service fluids must be cleaned up and disposed
of properly.
Filling the tank with natural gas
Fig. 118 With the tank flap open: tank cap ①, gas filler neck ②, gas filler neck seal ③
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Do not continue filling the tank once the filler nozzle stops automatically. The fuel tank could
be overfilled. This can cause fuel to splash out and overflow. This can cause fires, explosions
and serious injuries.
WARNING
Remove spilt fuel from all vehicle components as quickly as possible in order to avoid damage
to the wheel housing, tyres and vehicle paint.
NOTICE