2021 VOLKSWAGEN TIGUAN sensor

The warning lamp and a message are displayed on the instrument cluster display in the event
of malfunctions.
If the malfunction cannot be rectified by one of the listed measures, switch off ACC and go to a
qualified workshop. Volkswagen recommends using a Volkswagen dealership for this purpose.
ACC is not available, the radar sensor does not have sufficient visibility
•The radar sensor is dirty. Clean the radar sensor ⇒ Vehicle care.
•The visibility of the radar sensor is impaired by add-on parts, the trim frames of number plate
holders or stickers. Keep the area around the radar sensor free.
•The radar sensor has been displaced or damaged, e.g. due to damage to the front of the
vehicle. Check whether damage is visible ⇒ Repairs and technical modifications.
•Fault or malfunction. Switch off and restart the engine.
•Structural modifications have been made to the front of the vehicle.
•The genuine Volkswagen badge is not used.
ACC does not function as expected
•The radar sensor is dirty. Clean the radar sensor ⇒ Vehicle care.
•The visibility of the radar sensor is impaired due to the weather conditions, e.g. snow, or due to
detergent deposits or coatings. Clean the radar sensor ⇒ Vehicle care.
•The system limits are not met ⇒ System limits.
•The brakes have overheated, control was interrupted automatically. Allow the brakes to cool
down and check functioning again.
Control cannot be started
•A forward gear other than first gear is selected (manual gearboxyfRUWKHVHOHFWRUOHYHULVLQ
selector lever position D or the Tiptronic gate.
•The speed is at least 25 km/h (16 mphyfLQWKHFDVHRIYHKLFOHVZLWKPDQXDOJHDUER[.
•The brake lights on the vehicle and trailer ⇒ are working.
•ESC is not regulating.
•The brake pedal is not depressed.
Unusual noises during the automatic braking operation are normal and not a sign that there
is a fault.
Area monitoring system (Front Assistyf
Introduction
This chapter contains information on the followingsubjects:
⇒ Warning levels and braking intervention
⇒ Operating the area monitoring system (Front Assistyf
⇒ Pedestrian Monitoring
⇒ System limits
⇒ Troubleshooting
The area monitoring system (Front
AssistyfZLWK&LW\(PHUJHQF\%UDNLQJ
System can help to avoid accidents.
Within the limits of the system, Front Assist can warn the driver about imminent collisions, prepare
the vehicle for emergency braking, assist with braking, and initiate automatic braking. The warning
time varies depending on the traffic situation and driver behaviour.
Front Assist is not a substitute for the full concentration of the driver.
Driving with Front Assist
You can cancel the automatic braking interventions of Front Assist by steering or pressing the
accelerator.
Automatic braking
Front Assist can decelerate the vehicle to a standstill. The vehicle will then not be held
permanently. Depress the brake pedal.
The brake pedal will feel harder during an automatic braking operation.
Radar sensor
Front Assist detects driving situations by means of the radar sensor at the front of the vehicle
⇒ Front view. The range of the radar sensor is up to approximately 120 m.

Functions included in the system
The City Emergency Braking System and Pedestrian Monitoring (depending on vehicle equipmentyf
are part of Front Assist and are automatically active when Front Assist is switched on.
Warning levels and braking intervention
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Distance warning
The system detects when safety is endangered by driving too close to the vehicle in front. The
warning lamp Lit up Increase the distance.
Speed range: around 65 km/h (40 mphyfWRNPKPSK\f.
Advance warning
The system detects a possible collision with a vehicle in front or a pedestrian crossing in front of the
vehicle and prepares the vehicle for possible emergency braking.
A warning tone sounds and the warning lamp Lit up Brake or take evasive action.
Speed range: around 30 km/h (20 mphyfWRNPKPSK\f.
Urgent warning
If the driver does not react to the advance warning, the system may initiate a short braking jolt in
order to draw attention to the increasing collision risk. Brake or take evasive action.
Speed range: around 30 km/h (20 mphyfWRNPKPSK\f.
Automatic braking
If the driver also does not react to the urgent warning, the vehicle can be braked automatically with
braking force that increases in several stages. The reduced speed means that it is possible to
minimise the consequences of an accident.
Speed range: around 5 km/h (3 mphyfWRNPKPSK\f.
Braking intervention
If the system detects that the driver is braking insufficiently when there is a risk of collision, the
system can increase the braking force and help prevent a collision. The braking intervention takes
place only for as long as the brake pedal is pressed hard.
Speed range: around 5 km/h (3 mphyfWRNPKPSK\f.
The intelligent technology of Front Assist cannot overcome the laws of physics, and
functions only within the limits of the system. Never let the extra convenience afforded by
Front Assist tempt you into taking risks when driving. The driver is always responsible for
braking in time.
•If Front Assist issues a warning, brake your vehicle immediately depending on the
traffic situation or avoid the obstacle.
•Adapt your speed and distance from the vehicles ahead to suit visibility, weather, road
and traffic conditions.
•Front Assist cannot prevent accidents and serious injuries on its own.
•Front Assist can issue unnecessary warnings and carry out unwanted braking
interventions in certain complex driving situations, e.g. at traffic islands.
•Front Assist can issue unnecessary warnings and carry out unwanted braking
interventions when its function is impaired, e.g. if the radar sensor is dirty or its
position has been changed.
•Front Assist without Pedestrian Monitoring does not react to persons. In addition, the
system does not react to animals or crossing vehicles or to vehicles that are
approaching in the same lane.
•If you are unsure whether the vehicle possesses Pedestrian Monitoring, please enquire
about this at a qualified workshop before starting your journey.
•Be prepared to take over control of the vehicle yourself at all times.
WARNING

System limits
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Front Assist has physical and system-related limitations. From the driver's perspective, some Front
Assist reactions may therefore occur unexpectedly or with a delay in certain circumstances. You
should therefore always be prepared to take full control of the vehicle if necessary.
•In tight bends.
•If the accelerator is fully depressed.
•If Front Assist is switched off or faulty.
•If TCS is switched off manually.
•If ESC is taking corrective action.
•If there is a fault in several brake lights on the vehicle or on a trailer with an electrical
connection to the vehicle ⇒.
•If the radar sensor is dirty or covered.
•If there are metal objects, e.g. tracks in the road or metal plates used in roadworks, or road
signs, above and adjacent to the road.
•If the vehicle is reversing.
•Under hard acceleration.
•In snow or heavy rain.
•In case of narrow vehicles, e.g. motorbikes.
•If vehicles are travelling slightly to the left or right of your vehicle.
•If vehicles are crossing in front of your vehicle.
•If there is oncoming traffic.
•If pedestrians are standing in front of the vehicle, approaching the vehicle, or moving in the
same direction as the vehicle.
•In complex driving situations, e.g. at traffic islands.
•In unclear traffic situations, e.g. vehicles ahead are heavily braking or turning off.
•When loads or attachment parts on other vehicles protrude to the side, rear or above the normal
dimensions of the vehicle.
Switching off Front Assist
•If the vehicle is being towed.
•If the vehicle is on a rolling road test bed.
•If the vehicle is driven in areas other than public roads.
•If the radar sensor is faulty.
•After external force on the radar sensor, e.g. after a rear-end collision.
•In the event of multiple unwanted interventions.
•If the radar sensor is covered temporarily by any auxiliary equipment, e.g. auxiliary headlights.
•If the vehicle is loaded onto a truck, car ferry or motorail train.
The intelligent Pedestrian Monitoring technology cannot overcome the laws of physics,
and functions only within the limits of the system. Never let the extra convenience
afforded by the Pedestrian Monitoring system tempt you into taking any risks when
driving. The driver is always responsible for braking in time.
•If Pedestrian Monitoring issues a warning, brake your vehicle immediately depending
on the traffic situation or avoid the pedestrian.
•The Pedestrian Monitoring system cannot prevent accidents and serious injuries on its
own.
•The Pedestrian Monitoring system can issue unnecessary warnings and carry out
unwanted braking interventions in complex driving situations, e.g. on a twisting main
road.
•The Pedestrian Monitoring system can issue unnecessary warnings and carry out
unwanted braking interventions when its function is impaired, e.g. if the radar sensor is
covered or its position has been changed.
•Be prepared to take over control of the vehicle yourself at all times.
WARNING
Failure to switch off Front Assist in the situations mentioned can result in accidents and
serious injuries.
WARNING

Troubleshooting
First read and observe the introductoryinformation and safety warnings⇒
Introduction
A message is displayed on the instrument cluster display in the event of malfunctions.
If the malfunction cannot be rectified by one of the listed measures, switch off Front Assist and go
to a qualified workshop. Volkswagen recommends using a Volkswagen dealership for this purpose.
Front Assist is not available, the radar sensor does not have sufficient
visibility
•The radar sensor is dirty. Clean the radar sensor ⇒ Vehicle care.
•The visibility of the radar sensor is impaired by add-on parts, the trim frames of number plate
holders or stickers. Keep the area around the radar sensor free.
•The radar sensor has been displaced or damaged, e.g. due to damage to the front of the
vehicle. Check whether damage is visible ⇒ Repairs and technical modifications.
•Structural modifications have been made to the front of the vehicle.
•The genuine Volkswagen badge is not used.
Front Assist does not function as expected or is triggered unnecessarily
several times
•The radar sensor is dirty. Clean the radar sensor ⇒ Vehicle care.
•The visibility of the radar sensor is impaired due to the weather conditions, e.g. snow, or due to
detergent deposits or coatings. Clean the radar sensor ⇒ Vehicle care.
•The system limits are not met ⇒ System limits.
Lane keeping system (Lane Assistyf
Introduction
This chapter contains information on the followingsubjects:
⇒ Driving with the lane keeping system
⇒ Troubleshooting
The lane keeping system (Lane Assistyf
helps the driver stay in lane.
Using a camera in the windscreen ⇒ Vehicle overviews, the lane keeping system detects lane
markings on the road. If your vehicle moves too close to a recognised lane marking, the system will
warn the driver with a corrective steering intervention. The corrective steering intervention can be
overridden by the driver at any time.
Adaptive lane guidance (depending on vehicle equipmentyf
The adaptive lane guidance system detects the preferred position in a lane and keeps the vehicle in
this position.
Adaptive lane guidance is switched on and off in the Driver assistance menu in the Infotainment
system ⇒ Operation and display in the Infotainment system.
System limits
Use the lane keeping system only on motorways and good main roads.
The system is not active under the following conditions:
•Vehicle speed is less than 60 km/h (37 mphyf.
•Lane keeping system has not detected any lane markings or lane boundaries.

system decelerates the vehicle to a complete stop and switches on the electronic parking brake
automatically ⇒ Electronic parking brake.
When Emergency Assist is actively controlling the vehicle, the hazard warning lights are switched
on and the vehicle performs slight snaking movements within its lane to warn other road users.
The hazard warning lights can be deactivated by pressing the accelerator or brake, by making a
steering intervention or, depending on the situation, by pressing the button for the hazard warning
lights.
When Emergency Assist has been triggered, the system is unavailable until after the ignition has
been switched off and then on again.
Prerequisites
•The lane keeping system and ACC are switched on.
•The selector lever is in position D/S or in the Tiptronic gate.
•The system has detected a lane marking on both the right and left sides of the vehicle
⇒ Fig. 147.
Switching Emergency Assist on and off
Emergency Assist is activated automatically when the lane keeping system ⇒ Lane keeping system 
(Lane Assistyf is switched on.
Conditions for deactivating Emergency Assist
The following conditions can prevent Emergency Assist from reacting, or can cause it to deactivate
automatically:
•If the driver activates the accelerator, brake or steering.
•If one of the prerequisites for operation of the lane keeping system ⇒ Lane keeping system 
(Lane Assistyf or ACC ⇒ Adaptive Cruise Control (ACCyf is no longer fulfilled.
Lane change system (Side AssistyfLQFO5HDU7UDIILF
Alert
Introduction
This chapter contains information on the followingsubjects:
⇒ Driving with the lane change system
⇒ Rear Traffic Alert
⇒ Troubleshooting
The lane change system with Rear
Traffic Alert provides assistance for the
driver when checking for traffic behind
the vehicle.
Radar sensors monitor the area behind the vehicle ⇒ Vehicle overviews. The system measures the
distance and speed difference in relation to other vehicles and informs the driver by means of visual
signals in the exterior mirrors.
The intelligent technology used in Emergency Assist cannot overcome the laws of
physics, and functions only within the limits of the system. The driver is always
responsible for controlling the vehicle.
•Adapt your speed and distance from the vehicles ahead to suit visibility, weather, road
and traffic conditions.
•Your hands should always be on the steering wheel so that you can steer at any time.
•Emergency Assist cannot prevent accidents and serious injuries on its own.
•If the camera's field of view is dirty, covered or damaged, the function of the lane
keeping system may be impaired.
•Emergency Assist does not react to persons, animals or vehicles crossing or
approaching in the same lane.
WARNING
If Emergency Assist is triggered unexpectedly, it can result in accidents and serious
injuries.
•If there is a malfunction in the Emergency Assist system, switch off the lane keeping
system (Lane Assistyf7KLVZLOODOVRVZLWFKRII(PHUJHQF\$VVLVW ⇒ Lane keeping 
system (Lane Assistyf.
•Go to a qualified workshop and have the system checked. Volkswagen recommends
using a Volkswagen dealership for this purpose.
WARNING

The integrated Rear Traffic Alert provides assistance when reversing out of a parking space and
manoeuvring.
System limits
Use the lane keeping system only on paved roads.
The lane change system may interpret the traffic situation incorrectly in the following driving
situations, for example:
•In tight bends.
•When driving in the middle of two lanes.
•When road lanes are of varying width.
•At the brow of a hill.
•In poor weather conditions.
•Where there are special roadside structures, e.g. high or offset crash barriers.
You can save some settings in the user accounts of the personalisation function
⇒ Personalisation.
Driving with the lane change system
Fig. 148 In the exterior mirror housing: visual displays for the lane change system.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Switching on and off
•By means of the Assist systems menu in the instrument cluster ⇒ Instrument cluster 
operation.
•OR: depending on the vehicle equipment, by means of the button for the driver assist systems
⇒ Button for driver assist systems.
•OR: depending on the vehicle equipment, in the Driver assistance menu in the Infotainment
system ⇒ Operation and display in the Infotainment system.
When the lane change system is switched on, the yellow indicator lamp in the exterior mirror
housing lights up once briefly ⇒ Fig. 148.
This most recent system setting is retained even after the ignition has been switched off and on.
Function
When switched on, the lane change system is active from a speed of around 15 km/h (9 mphyf7KH
lane change system is deactivated at a vehicle speed below 10 km/h (6 mphyf.
The intelligent technology of the lane change system including Rear Traffic Alert cannot
overcome the laws of physics, and functions only within the limits of the system. Never let
the extra convenience afforded by the lane change system including Rear Traffic Alert
tempt you into taking any risks when driving. Always take care when using the lane
change system and the Rear Traffic Alert as you could otherwise cause accidents or
injuries. The system is not a substitute for the full concentration of the driver.
•Adapt your speed and distance from the vehicles ahead to suit visibility, weather, road
and traffic conditions.
•Your hands should always be on the steering wheel so that you can steer at any time.
•Pay attention to the visual displays in the exterior mirror housing and in the instrument
cluster display, and respond to the commands.
•Always pay close attention to what is happening around the vehicle.
•Never use the lane change system including Rear Traffic Alert if the radar sensors are
dirty, covered or damaged. These circumstances can impair the proper functioning of
the system.
•It may be hard to see the display in the exterior mirror in direct sunlight.
WARNING

In the following driving situations, the yellow indicator lamp lights up in the housing of the respective
exterior mirror:
•If your vehicle is being overtaken.
•When overtaking another vehicle with a speed difference of up to approximately 15 km/h
(9 mphyf1RGLVSOD\ZLOOEHVKRZQLIWKHWDNHRYHUPDQRHXYUHLVPXFKIDVWHU.
The yellow indicator lamp flashes if a possible critical situation is detected when you indicate in the
direction of the detected vehicle.
The quicker another vehicle approaches, the earlier there is a corresponding display in the exterior
mirror.
Lane change system Side Assist Plus
If the vehicle is equipped with a lane keeping system and the system is switched on, the driver is
warned by a corrective steering intervention when changing lanes during a possible critical situation
(information level, warning levelyf7KHVWHHULQJLQWHUYHQWLRQDOVRRFFXUVZKHQWKHWXUQVLJQDOLV
activated for the corresponding direction. If the steering intervention is overridden by the driver, the
steering wheel vibrates to give an additional warning.
Automatic deactivation
The lane change system will switch off automatically if the radar sensors are permanently covered.
This can be caused by a layer of ice or snow in front of the radar sensor, for example.
A text message will be shown on the instrument cluster display.
If the lane change system sensor has been automatically deactivated, the system cannot be
activated until the ignition has been switched off and back on again.
The lane change system and Rear Traffic Alert are switched off automatically when the factory-
fitted towing bracket is electrically connected with a trailer or similar ⇒ Trailer towing. The lane
change system and Rear Traffic Alert are automatically switched on again when the trailer is
unhitched from the vehicle. The lane change system and Rear Traffic Alert must be switched off
manually if a non-factory-fitted towing bracket is used.
Brightness
The brightness of the visual display will automatically adapt to the light levels.
The basic brightness level can be set in the Infotainment system ⇒ Operation and display in the 
Infotainment system.
The lane change system is not active during the setting procedure.
Rear Traffic Alert
Fig. 149 Rear Traffic Alert: monitored area around the vehicle leaving the parking space.
Fig. 150 Display in the Infotainment system: Rear Traffic Alert.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Switching on and off
•By means of the Assist systems menu in the instrument cluster ⇒ Instrument cluster 
operation.

•OR: depending on the vehicle equipment, by means of the button for the driver assist systems
⇒ Button for driver assist systems.
•OR: depending on the vehicle equipment, in the Driver assistance menu in the Infotainment
system ⇒ Operation and display in the Infotainment system.
Function
Rear Traffic Alert monitors the traffic crossing behind the vehicle when reversing out of a parking
space or manoeuvring. Rear Traffic Alert functions using radar sensors in the rear bumper.
Key to ⇒ Fig. 150:
Critical situation. Do not drive on!Possible critical situation.
Detection of a critical situation can also take place acoustically:
•A warning signal will sound and a text message will be displayed in the instrument cluster for
vehicles without Park Distance Control.
•A warning signal will sound with the continuous Park Distance Control tone if Park Distance
Control is installed in the vehicle. If the Park Distance Control is deactivated, no warning can be
given to the driver and the Rear Traffic Alert system will also be switched off temporarily.
If there is a fault in the system's scanned area, the yellow indicator lamp lights up .
Automatic braking intervention to minimise damage
If Rear Traffic Alert detects an approaching road user and the driver has not pressed the brake, the
system can brake automatically.
The Rear Traffic Alert helps the driver to prevent damage by initiating an automatic braking
intervention. Automatic braking intervention takes place when reversing at speeds of between
1-12 km/h (1-7 mphyf7KHYHKLFOHLVKHOGVWDWLRQDU\IRUXSWRWZRVHFRQGVDIWHUYHKLFOHVWDQGVWLOOKDV
been detected.
After automatic braking intervention is activated to prevent damage to the vehicle, the system
requires approximately ten seconds before it can activate another automatic braking intervention.
The automatic braking intervention can be interrupted by pressing the accelerator or brake pedal
sharply and taking control of the vehicle.
Troubleshooting
First read and observe the introductoryinformation and safety warnings⇒
Introduction
No sensor visibility, error message, system switches itself off
•Clean the radar sensors or remove stickers or accessories from the radar sensors ⇒ Caring for 
and cleaning the vehicle exterior.
•Check whether any damage is visible.
The system is not responding as expected
•The radar sensors are dirty ⇒ Caring for and cleaning the vehicle exterior. The sensor visibility
may be impaired by dirt and snow or also residue from cleaning agents or coatings.
•The prerequisites for system operation must be met ⇒ System limits.
•The radar sensors are covered by water.
•The vehicle is damaged in the area of the radar sensors, e.g. caused by parking collisions.
•The detection ranges of the radar sensors are blocked by add-on parts, e.g. bicycle carriers.
•Changes have been made to the paintwork in the area of the radar sensors or structural
modifications have been made, e.g. on the vehicle front end or the running gear.
•Tinting foils have been retrofitted on the side windows.
The intelligent technology of the lane change system including Rear Traffic Alert cannot
overcome the laws of physics, and functions only within the limits of the system. Do not
let the auxiliary function of the Rear Traffic Alert tempt you to take any risks while driving
– this can cause accidents. The system is not a substitute for the full concentration of the
driver.
•Never use the system with impaired vision or in unpredictable traffic situations, e.g. on
extremely busy roads or across several lanes.
•Always pay attention to the area around the vehicle – cyclists and pedestrians are
often not clearly detected.
•The Rear Traffic Alert will not always independently bring the vehicle to a complete
stop.
WARNING