sensor VOLKSWAGEN T-ROC 2022 Service Manual

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space or manoeuvring. Rear Traffic Alert functions using radar sensors in the rear bumper.
Key to Fig. 134
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.
In vehicles with Park Distance Control, an acoustic signal will sound with the continuous tone of Park
Distance Control. 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 system fault in the scanned area, the indicator lamp will light up yellow on the
instrument cluster display.
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.
Automatic braking intervention is activated when reversing at speeds of between 1 km/h (1
mph). The vehicle is held stationary for up to two seconds after vehicle standstill has 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.
Automatic braking intervention can be interrupted by pressing the accelerator or brake pedal
sharply and taking control of the vehicle.
Automatic deactivation
Rear Traffic Alert is deactivated automatically and cannot be switched on if the factory-fitted towing
bracket is electrically connected to a trailer or similar Notes on towing a trailer
electrically connected to the vehicle and the driver pulls away, a text message appears in the
instrument cluster display to inform the driver that Rear Traffic Alert has been deactivated. Rear
Traffic Alert will be automatically activated again when the trailer has been unhitched from the
vehicle. This applies if the functions were previously activated. Rear Traffic Alert must be switched
off manually for trailer towing if a non-factory-fitted towing bracket is used.

WARNING
The intelligent Rear Traffic Alert technology cannot overcome the laws of physics, and functions only
within the limits of the system. Do not let the assistance function of Rear Traffic Alert tempt you to
take any safety risks while driving. The system is not a substitute for the full concentration of the
driver.

lfunctions and engine
damage.

The engine oil level must never be above area Fig. 186
the crankcase breather and escape into the atmosphere via the exhaust system.
Troubleshooting
First read and observe the introductoryinformation and safety warnings
and Engine oil pressure too low
The central warning lamp lights up red and the text message Stop vehicle. Oil pressure. Observe
vehicle wallet is displayed.
Do not drive on!
Switch off the engine and check the engine oil level. Checking the engine oil level Checking the
Do not drive on or allow the engine to run if the
warning lamp is flashing although the engine oil level is correct. The engine could otherwise be
damaged. Seek expert assistance.
and Engine oil level too low
The central warning lamp lights up red and the text message Refill engine oil. is displayed.
Engine oil level is too low. Switch off the engine.
Checking the engine oil level Checking the engine oil level and refilling the engine oil
and Engine oil level low
The central warning lamp lights up yellow and the text message Check oil level. is displayed.
Engine oil level is low. Switch off the engine.
Checking the engine oil level Checking the engine oil level and refilling the engine oil
and Fault in engine oil system
The central warning lamp lights up yellow and the text message Oil sensor: workshop. is displayed.
Engine oil system is faulty. Go to a qualified workshop and have the engine oil sensor checked.
and Engine oil level too high
The central warning lamp lights up yellow and the text message Reduce oil level. is displayed.
Engine oil level is too high. Switch off the engine.
Check the engine oil level. Checking the engine oil level Checking the engine oil level and refilling
the engine oil

ator. The 12-volt vehicle battery will not be charged by the alternator while the
vehicle is in motion.
Switch off any electrical consumers that are not required. Inform a qualified workshop. Have the
electrical system checked.
The start/stop system cannot start the engine Start/stop system
and vehicle battery (12-volt)
The central warning lamp lights up yellow and the text message 12 V battery low. Charge by driving.
is displayed.
The charge level of the vehicle battery is insufficient.
Recharge the 12-volt vehicle battery by driving the vehicle for an extended time.
The start/stop system cannot start the engine Start/stop system
and vehicle battery (12-volt)
The central warning lamp lights up red and the text message Replace 12 V battery. Workshop. is
displayed.
The vehicle battery condition is not ok.
Seek expert assistance and have the battery checked and replaced if necessary.
The start/stop system cannot start the engine Start/stop system
Wheels and tyres
Tyre monitoring system
Introduction
This chapter contains information on the followingsubjects:
Tyre Pressure Loss Indicator
Troub
The tyre monitoring system warns the driver when the tyre pressures are too low.
The tyre monitoring system monitors various parameters (for example, rolling circumference) of all
wheels using ABS sensors (indirect measurement).

WARNING
The intelligent tyre monitoring system technology cannot overcome the laws of physics, and
functions only within the limits of the system. Incorrect handling of the wheels and tyres can lead to
a sudden loss of pressure in the tyres, tread separation and even tyre blow-out.

Tyre
pressure
an extent that the tread peels off and the tyre bursts.
Tyre pressure
eck the tyre pressure regularly when the tyres are cold. If necessary, adjust the tyre pressure in
the cold tyre to the recommended tyre pressure for the tyres installed on your vehicle Tyre
pressure
amage.


If the tyre pressure is too low, this will increase fuel consumption and tyre wear.

When new tyres are driven at high speeds for the first time, they can expand slightly and trigger a
one-off pressure warning.

Old tyres should be replaced only by tyres that have been approved by Volkswagen for the vehicle
type.

Do not rely solely on the tyre monitoring system. Check your tyres regularly to ensure that they are
properly inflated and have no signs of damage, such as punctures, cuts, cracks, and blisters. Remove
any objects that become embedded in the tyre tread but have not penetrated into the body of the
tyre itself.
Tyre Pressure Loss Indicator
First read and observe the introductoryinformation and safety warnings
Functional description
The Tyre Pressure Loss Indicator uses data from the ABS sensors and other functions to compare the
speed of rotation and the rolling circumference of the individual wheels.
The rolling circumference can change:

ARNING
Care products may be toxic and hazardous. Unsuitable care products and incorrect application of
care products can cause accidents, severe injuries, burns or poisoning.

facturer's instructions.

-ventilated rooms so that you do not breathe in any toxic
vapours.
e fluids for vehicle care.
These substances are toxic and highly inflammable.

NOTICE
Soiling with aggressive and solvent-based ingredients can cause irreparable damage to the vehicle
equipment, even if left for only a short time, e.g. on seat padding or trim parts.


1) Suitable accessories are available from your Volkswagen dealership. Follow the application
instructions on the packaging.
Washing the vehicle
Thoroughly wash the underside of the vehicle on a regular basis to remove road salt or sea water
residue.
Automatic car washes
Always observe all the car wash operator's specifications, particularly if your vehicle has add-on
parts
ar washes without brushes.

Information on
Operating the wiper leverand the rain/light sensor before using
the car wash.


High-pressure cleaner

nsors, camera lenses:
clean the area in front of the sensors or camera with a soft cloth and solvent-free cleaning agent.
Observe the installation locations Vehicle overviews


camera lens.
Clean sensitive surfaces on the rain/light sensor and the camera window on the windscreen in the
same way as windows and glass surfaces (depending on vehicle equipment).
Remove snow with a hand brush. Do not use warm or hot water. Use the Volkswagen Genuine de-
icing agent (- 000 096 322 -) to remove ice.
Decorative films, protective films:
Remove soiling as for paint. Always use Volkswagen Genuine plastic cleaner (- 000 096 314 -) for
matt decorative films.
Treat the vehicle with liquid hard wax every three months after washing and removing dust. Use
only clean, soft microfibre cloths to apply it. Do not use hot wax, even in car washes.

Trim parts, trim strips, exhaust pipes made of chrome, aluminium or stainless steel:
Clean only using a clean, soft cloth and a mild soap solution2) in a dust-free environment.
Chrome parts can be protected using Volkswagen Genuine hard wax (- 000 096 317 -).
Anodised surfaces: do not use chrome cleaning products.
Headlights, tail light clusters:
Use a soft sponge soaked with a mild soap solution2). Do not use any cleaning agents that contain
alcohol or solvents.
nium care product (-
000 096 319 D -).
Wheels:
Remove dirt and gritting salt deposits with plenty of water.
Alloy wheels: treat dirty aluminium wheels with Volkswagen Genuine wheel rim cleaner (-
000 096 304 -). Volkswagen recommends treating the wheel rims with Volkswagen Genuine hard
wax (- 000 096 317 -) every three months.
-up pen. Go to a qualified
workshop if necessary.
- 000 096 304 -).
Door lock cylinders:

s and cameras must not be covered by stickers, additional
headlights, trim frames for number plates or similar.
Repairs and structural modifications should therefore be carried out only by a qualified workshop.
Volkswagen recommends using a Volkswagen dealership for this purpose.
-ups in the area around the sensors may impair the function of the
system in question.
vehicle only with the original Volkswagen badge.
Engine and transmission guard
An engine and transmission guard can reduce the risk of damage to the vehicle's underbody and
sump, for example when driving over kerbs, drive entrances or unsurfaced roads.
Volkswagen recommends that you have this equipment retrofitted by your Volkswagen dealership.

WARNING
Incorrectly performed repairs and modifications can cause malfunctions and damage to the vehicle
and impair the effectiveness of the driver assist systems. This can result in accidents and severe
injuries.


WARNING
Unsuitable spare parts and accessories, incorrectly carried out work, modifications and repairs can
lead to damage to the vehicle and cause accidents and serious injuries.
Volkswagen Genuine Parts

specifications
Modifications and repairs to the front bumper, doors, front seats, headliner or the bodywork should
be carried out only by a qualified workshop. Airbag system components and sensors might be fitted
on these vehicle components.
If you work on the airbag system or remove and install parts of the system when performing other
repair work, parts of the airbag system may be damaged. The consequence may be that, in the event
of an accident, the airbag inflates incorrectly or does not inflate at all.
Regulations must be observed to ensure that the effectiveness of the airbags is not reduced and that
removed parts do not cause any injuries or environmental pollution. Qualified workshops are
familiar with these regulations.
Any modifications to the vehicle's suspension could prevent the airbag system from working
properly during a collision. For example, using wheel rim/tyre combinations that have not been
approved by Volkswagen, lowering the suspension or making modifications to the suspension rate
including work on the springs, struts and shock absorbers etc., could change the forces that are
measured by the airbag sensors and sent to the electronic control unit. Some changes to the
suspension could cause the forces measured by the sensors to increase, for example. This can lead
to the airbag system being triggered in collision scenarios where it normally would not be triggered if
modifications to the suspension had not been made. Other modifications can cause the forces
measured by the sensors to decrease, therefore preventing the airbag system from being triggered
when it should have been.

WARNING
Incorrect repairs and modifications can cause malfunctions and damage to the vehicle and impair
the effectiveness of the airbag system. This can result in accidents and serious or even fatal injuries.


en taken from end-of-life
vehicles in your vehicle.

WARNING
Modifications to the vehicle's suspension, including the use of unsuitable tyre/rim combinations, can
cause the airbag system to function differently and increase the risk of serious or fatal injuries in the
event of an accident.
the original factory-fitted components.
en.
Mobile reception in the vehicle