ABS VOLKSWAGEN T-ROC 2021 Owner´s Manual

Not all warning and indicator lamps are available in all markets.
Indicator lamps which light up in the light switch are described in the chapter Lights ⇒ Lights .
Symbol Meaning
Central warning lamp. Observe the additional information on the instrument cluster
display.
Electronic parking brake ⇒ Operating the electronic parking brake .
Brake system fault ⇒ Do not drive on! Brake system fault. .
Electromechanical steering not functioning ⇒ Troubleshooting .
Fasten seat belt ⇒ Warning lamp .
Collision warning from area monitoring system (Front Assist) ⇒ Warning levels and
braking intervention .
Depress the brake pedal.
Check brake pads ⇒ Troubleshooting .
Central warning lamp. Observe the additional information on the instrument cluster
display.
Electronic Stability Control (ESC) OR traction control system (TCS) ⇒ TCS regulating
to prevent the wheels from spinning. .
Traction control system (TCS) switched off ⇒ TCS regulating to prevent the wheels
from spinning. .
Fault in anti-lock brake system (ABS) ⇒ ABS failure or fault. .
Fault in electronic parking brake ⇒ Troubleshooting OR: fault in Hill Start Assist ⇒
Fault in Hill Start Assist .
Rear fog light switched on ⇒ Switching the fog lights on and off .
Vehicle lighting is not working ⇒ Vehicle lighting not working .
Fault in exhaust system ⇒ Fault in exhaust system .
Fault in engine management system ⇒ Troubleshooting .

The examples given in this chapter are an aid for safe offroad driving. However, we cannot predict
whether these guidelines will be valid for all situations that could occur.
The many different types of terrain and the associated risks and dangers make it impossible to
describe all possible driving situations. The examples are only general guidelines which are intended
to help you to drive offroad safely. It is crucial that you know what to expect when you drive into
offroad terrain you are unfamiliar with. This will enable you to assess potential dangers in advance.
The driver can use 4MOTION Active Control to activate a variety of vehicle settings in an all-wheel
drive vehicle as required ⇒ Setting a driving profile .
Checklist
Before driving offroad for the first time, take the following steps so you can operate and drive the
vehicle safely offroad:
Observe the basic safety notes Safety instructions for offroad driving.
Familiarise yourself with the vehicle controls.
Check and adjust the seat position Sitting position and fasten the seat belts Seat belts.
Check distance to steering wheel and adjust Steering wheel.
Always wear suitable, well-fitting shoes that provide good grip for your feet when operating the
pedals.
Safety instructions for offroad driving
First read and observe the introductoryinformation and safety warnings⇒Introduction 

WARNING
The intelligent vehicle technology cannot overcome the laws of physics, and functions only within
the limits of the system. Despite ABS, instability through locked wheels can occur on adverse terrain
– e.g. if you brake hard when driving on a loose gravel road. The Electronic Stability Control will be
able to stabilise the vehicle only to a limited extent in these circumstances.

WARNING
Driving offroad can be dangerous and could cause accidents, serious injury, damage to the vehicle
and also a vehicle breakdown far from any assistance.
Never select a dangerous route and never take risks that could endanger you and your passengers. If
you cannot drive on or if you are in any doubt about the safety of the route, turn round and choose
another route.
Even terrain that looks harmless can be difficult and dangerous, and could get you and your
passengers into difficulties. We recommend inspecting the terrain on foot beforehand.

Temporarily switching off the lane keeping system
Switch off the lane keeping system in the following situations:
Very sporty driving.
In poor weather conditions and when driving on poor roads.
In roadworks and before crests in the road.
Driver intervention prompt
In the absence of any steering input, the system prompts the driver with acoustic warnings and a
display on the instrument cluster display to take over active steering.
If the driver does not respond, the system will give another warning by initiating a quick jolt of the
brake before switching to passive mode or activating Emergency Assist (with some equipment
levels).
Steering wheel vibration
The following situations can lead to vibration of the steering wheel:
If the corrective steering intervention is not sufficient to keep the vehicle in its lane.
If the system can no longer detect a lane during a significant steering intervention.

If there is a system fault, the lane keeping system can deactivate itself automatically.
Troubleshooting
First read and observe the introductoryinformation and safety warnings⇒Introduction 
No camera visibility, error message, system switches itself off
Clean the windscreen ⇒ Caring for and cleaning the vehicle exterior .
Check whether any damage is visible on the windscreen in the camera's field of view.
The system is not responding as expected
Regularly clean the camera's field of view, and keep it free from snow and ice.
Do not cover the camera's field of view.
Check the area of the windscreen that is in the camera's field of view for damage.
Do not fit any objects to the steering wheel.
Traffic Jam Assist
Traffic Jam Assist helps the driver to keep in lane, and also provides assistance when following other
vehicles in congestion or slow-moving traffic.

Never use the system where visibility is restricted or in unclear traffic situations, e.g. on extremely
busy roads or across several lanes.
Always pay attention to the area around the vehicle, since cyclists and pedestrians are often not
reliably detected, for example.
The Rear Traffic Alert will not always independently bring the vehicle to a complete stop.
Brake support systems
Information on brake support systems
The vehicle is fitted with brake support systems. The systems can support the driver in critical driving
or braking situations. Brake support systems cannot overcome the limits of physics and cannot
always keep the vehicle under control in every single critical driving or braking situation. The driver is
responsible for driving safety ⇒ .
Driving with brake support systems
The brake support systems work when the engine is running. They do not need to be operated
separately.
The brake pedal may pulsate or noises may occur while the brake support systems are regulating.
Continue to apply the necessary amount of brake pressure. Apply the necessary pressure to the
brake pedal consistently. If necessary, steer the vehicle while the brake pedal is depressed.
Electronic Stability Control (ESC)
ESC helps to reduce the risk of skidding and to improve driving stability in certain driving situations
⇒ .
ESC is always switched on.
Traction control system (TCS)
The TCS reduces the drive output if wheelspin occurs and adapts the drive output to suit road
surface conditions ⇒ Troubleshooting . The TCS makes it easier to pull away, accelerate and drive up
hills.
With some equipment levels, the TCS can be switched off in exceptional circumstances ⇒ Switching
the TCS on and off .
Anti-lock brake system (ABS)
The anti-lock brake system can prevent the wheels from locking when the brakes are applied up until
the point where the vehicle is nearly stationary and assists the driver in steering the vehicle and
keeping it under control ⇒ Troubleshooting .
Brake assist system
The brake assist system can help to reduce the stopping distance. The brake assist system reinforces
the braking force when the driver depresses the brake pedal quickly in an emergency situation.
If you reduce the pressure on the brake pedal, the brake assist system will switch off the brake
servo.

Electronic differential lock (EDL and XDS)
EDL brakes a spinning wheel automatically and distributes the drive force to the other drive wheels.
The EDL switches off automatically under unusually heavy loads to prevent the brake from
overheating. The EDL switches back on again automatically as soon as the brake has cooled down.
XDS improves traction in order to keep the vehicle on its intended course.
Automatic Post-Collision Braking System
In the event of a collision, the Automatic Post-Collision Braking System can help the driver to reduce
the risk of skidding, and the danger of secondary collisions, through automatic braking.
The Automatic Post-Collision Braking System functions only for collisions that are detected as a
collision by the airbag control unit.
The vehicle is braked automatically if the required systems have not been damaged in the collision
and have remained functional.
The following actions override automatic braking in the event of a collision:
When the driver depresses the accelerator.
When the brake pressure transmitted through the depressed brake pedal is greater than the brake
pressure provided by the system.

WARNING
The intelligent technology used in brake support systems cannot overcome the laws of physics, and
functions only within the limits of the systems. Driving fast on icy, slippery or wet roads can lead to a
loss of control of the vehicle and could cause serious injury to the driver and passengers.
Always adapt your speed and driving style to suit visibility, weather, road and traffic conditions. Do
not let the extra safety afforded by the brake support systems ABS, BAS, EDL, TCS and ESC tempt you
into taking any risks when driving.
The brake support systems cannot overcome the laws of physics. Slippery and wet roads will remain
dangerous, even when the ESC and other systems are active.
Driving too fast on wet roads can cause the wheels to lose contact with the road surface and
aquaplane. The vehicle cannot be braked, steered or controlled once it has lost contact with the
road surface.
Brake support systems cannot prevent an accident if, for example, you are driving too close to the
vehicle in front or are driving too fast for the individual situation.
Although the brake support systems are very effective and can help to control the vehicle in difficult
driving situations, please always remember that the driving stability of the vehicle depends on the
tyre grip.

Do not drive on! Brake system fault.
Warning lamp lights up red.
Seek expert assistance immediately.
ABS failure or fault.
Warning lamp lights up yellow.
Go to a qualified workshop. The vehicle can be braked without the anti-lock brake system.
TCS regulating to prevent the wheels from spinning.
Indicator lamp flashes yellow.
ESC switched off for system-related reasons.
Indicator lamp lights up yellow.
Switch the ignition on and off.
Drive a short distance at a speed of 15 – 20 km/h (9 – 12 mph) if necessary.
If is still lit up, seek expert assistance.
The brake support systems make noises
Noises may be heard when the brake support systems are performing control interventions.
Unexpected reduction in engine power
Faults can occur in the ESC and TCS systems if the four wheels have different types of tyres.
Any differences in the rolling radius of the tyres can cause the system to reduce engine power
unexpectedly.

WARNING
If the brake system warning lamp lights up together with the ABS indicator lamp , the ABS
control function may have failed. This can cause the rear wheels to lock quickly when you brake.
Locked rear wheels can lead to a loss of control of the vehicle. If possible, reduce your speed and
drive carefully at low speed to the nearest qualified workshop in order to have the brake system
tested. Avoid sudden braking and driving manoeuvres on the way.
If the ABS indicator lamp does not go out or comes on while the vehicle is in motion, ABS is not
working properly. The vehicle can be stopped using the normal brakes only (without the anti-lock
brake system). The protection provided by the anti-lock brake system is no longer available. Go to a
qualified workshop as soon as possible.
Practical equipment
Stowage areas

absence of the ⇒ Fig. 144  symbol in the vehicle does not mean that the control unit is not
transmitting the current position or speed of the vehicle.
Personal data
Volkswagen collects, processes and uses the user's personal data in accordance with statutory
requirements. You can access the current data protection policy on the Volkswagen homepage.
Deactivating Car-Net services

Fig. 145 Retrofitted sticker in the vehicle if Volkswagen Car-Net services have been permanently
deactivated.
First read and observe the introductoryinformation and safety warnings⇒Introduction 
If you sell the vehicle or lend it for a longer period, inform the user about the deactivated services
and deactivated control unit.
If your vehicle is already equipped with the legally required emergency call function eCall, this
function will not be affected by the deactivation described here.
Temporary deactivation
If your vehicle is in a workshop, you may find that the service technicians have deactivated individual
or all services for the duration of the workshop visit. The services will be available again once the
work is complete. Please contact your workshop if necessary. Volkswagen Car-Net portfolios can be
deactivated manually in the Infotainment system. The services can then be run again when the
deactivation is cancelled in the Infotainment system. Deactivated services are marked with a
corresponding indication on the start page of the Car-Net portal.
Permanent deactivation
In order to permanently deactivate Car-Net functions in vehicles with the Security & Service or e-
Remote packages, the online connectivity unit must be deactivated by a qualified workshop at your
request.
Once the on-board connectivity unit has been deactivated, the workshop will attach a sticker
⇒ Fig. 145  to your vehicle (e.g. on the roof console). The sticker shows that neither the Volkswagen
emergency call service nor the automatic accident notification will work. All other e-Remote and
Security & Service services will also be deactivated.
Service impairment or interruption

Refill only with distilled water. All other types of water can cause corrosion in the engine due to
the chemical components contained in the water. This can also lead to engine failure. If any other
type of water apart from distilled water has been refilled, the fluid in the cooling system should be
completely replaced immediately by a qualified workshop.
⇒ Fig. 188 . Otherwise the excess coolant will
be forced out of the cooling system when the engine is hot and could cause damage.
completely. Heavy coolant loss is an indication of leaks in the cooling system. The cooling system
should be checked by a qualified workshop as soon as possible. Failure to do so can result in engine
damage.
have entered the cooling system. Do not drive on! Seek expert assistance. Failure to do so can result
in engine damage.
correct openings. The use of incorrect service fluids could result in serious malfunctions and engine
damage.
Brake fluid

Fig. 190 In the engine compartment: cap on the brake fluid reservoir.
Brake fluid will gradually absorb water from the surrounding air over the course of time. The brake
system will be damaged if there is too much water in the brake fluid. The boiling point of the brake
fluid is also considerably reduced by the water content. Heavy use of the brakes and full braking may
cause a vapour lock in the brake system if the water content is too high. Vapour locks reduce levels
of braking power, considerably increase braking distance and can even cause the brake system to fail
completely. Your own safety and that of other road users depends on having a brake system that
functions properly at all times ⇒ .
Brake fluid specification
Volkswagen has developed a brake fluid that has been optimised for the brake system in the vehicle.
To ensure optimal operation of the brake system, Volkswagen expressly recommends the use of
brake fluid compliant with VW standard 501 14.
Before using a particular brake fluid, check that the brake fluid specifications printed on the
container correspond to the vehicle requirements.

Fault in the alternator. 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 
⇒ Troubleshooting for Tyre Pressure Loss Indicator 
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 . If the tyre pressure is too low, it is possible that the tyre temperature will increase to such
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⇒Introduction 
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: