2021 VOLKSWAGEN T-ROC warning lights

Replace the defective bulb with a new bulb of the same type.
Insert the bulb holder into the headlight and turn it clockwise as far as it will go.
Connect the connector to the bulb holder. The connector must audibly click into place.
Push the headlight from the outside into the openings and insert into the bumper.
Use the screwdriver to tighten the securing screws ⇒ Fig. 169  ①.
Fit the cover in the bumper ⇒ Fig. 169 .
Stow the wire hook and screwdriver in the vehicle toolkit.
Changing bulbs in the tail light clusters (LED lights)
First read and observe the introductoryinformation and safety warnings⇒Introduction 
These lamps use LED technology. The LEDs cannot be replaced by customers. If some LEDs fail, this
may be an indication that more elements are on the point of failure. In this case, have the lights
checked and renewed if necessary at a qualified workshop. Volkswagen recommends using a
Volkswagen dealership for this purpose.
Changing bulbs in the number plate light (LED lights)
First read and observe the introductoryinformation and safety warnings⇒Introduction 
These lamps use LED technology. The LEDs cannot be replaced by customers. If some LEDs fail, this
may be an indication that more elements are on the point of failure. In this case, have the lights
checked and renewed if necessary at a qualified workshop.
Troubleshooting
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Fault in vehicle lighting
The indicator lamp lights up yellow.
Fault in vehicle lighting or fault in cornering lights.
Check the vehicle lighting and change the appropriate bulb as required ⇒ Changing bulbs . If all
bulbs are OK or there is a fault in the dynamic cornering light, go to a qualified workshop.
Changing fuses
Introduction
This chapter contains information on the followingsubjects:
⇒ Fuses in the dash panel 

WARNING
Never tow a vehicle that has no power supply.
assistance.

NOTICE
When pushing the vehicle by hand, do not press on the tail light clusters, the side spoilers on the
rear window, the rear spoiler or large panels. This could damage the vehicle and the rear spoiler
could become detached.

NOTICE
Remove and install the cover and the towing eye carefully so as to avoid damage to the vehicle, e.g.
the paintwork.
Notes on tow-starting and towing
First read and observe the introductoryinformation and safety warnings⇒Introduction 
It is still possible to activate the turn signals in a vehicle that is being towed, even if the hazard
warning lights are switched on. To do this, operate the turn signal lever in the required direction
while the ignition is switched on. The hazard warning lights will not flash while the turn signal is
being used. The hazard warning lights will start flashing again automatically as soon as the turn
signal lever is moved back to the neutral position.
When should your vehicle not be tow-started or towed?

an 50 km.
accident.
If the vehicle cannot be towed on its own four wheels due to one of the above conditions, seek
expert assistance and have the vehicle transported on a recovery vehicle if necessary.
Tow-starting
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Preparations for tow-starting
Vehicles with an automatic gearbox:

For technical reasons, your vehicle must not be tow-started. Attempt to start the engine by jump
starting ⇒ Jump starting .
Vehicles with a manual gearbox:
Tow-starting is generally not recommended. If the engine does not start, first attempt to start the
engine by jump starting ⇒ Jump starting . Please note that the maximum tow-starting distance for
petrol engines is 50 m.
-rope or the tow-bar only to the towing eyes provided ⇒ Fitting the rear towing
eye  or ⇒ Fitting the front towing eye .
warning lights.



utral to prevent
driving into the towing vehicle.

NOTICE
When tow-starting, unburnt fuel can enter the catalytic converter and damage it.
Towing
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Preparations
h the tow-rope or the tow-bar only to the towing eyes provided ⇒ Fitting the rear towing
eye  or ⇒ Fitting the front towing eye  or to the towing bracket ⇒ Trailer towing .
-rope is not twisted. Otherwise a towing eye may become unscrewed
during towing.
regulations to the contrary.

Pulling vehicle (front)
tow-rope must be taut before you drive off properly.

correct openings. The use of incorrect service fluids could result in serious malfunctions and engine
damage.

The engine oil level must never be above area ⇒ Fig. 186  Ⓑ. Otherwise oil can be drawn in through
the crankcase breather and escape into the atmosphere via the exhaust system.
Troubleshooting
First read and observe the introductoryinformation and safety warnings⇒Introduction 
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
engine oil level and refilling the engine oil . - 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 . Seek expert assistance.

Brake fluid that is compliant with VW standard 501 14 is available from Volkswagen dealerships.
If this brake fluid is not available and it is necessary to use another high-quality brake fluid instead,
brake fluid that is compliant with DIN ISO 4925 CLASS 4 or US standard FMVSS 116 DOT 4 can be
used.
Not all brake fluids that are compliant with DIN ISO 4925 CLASS 4 or US standard FMVSS 116 DOT 4
have the same chemical composition. Some of these brake fluids may contain chemicals that can
damage or destroy brake system components over time.
Volkswagen therefore recommends the use of brake fluid that is compliant with VW standard 501 14
to ensure sustained proper operation of the brake system.
Brake fluid that is compliant with VW standard 501 14 fulfils the requirements of DIN ISO 4925
CLASS 4 or US standard FMVSS 116 DOT 4.
Brake fluid level
The brake fluid level must always be between the MIN and MAX marking on the brake fluid reservoir
or above the MIN marking ⇒ .
The brake fluid level cannot be checked accurately in all models as engine components may partially
conceal the fluid level in the brake fluid reservoir. If the brake fluid level cannot be read exactly,
please go to a qualified workshop.
The brake fluid level drops slightly during vehicle operation as the brake pads wear and the brakes
are automatically adjusted.
Brake fluid level
The indicator lamp lights up red.
Brake fluid level is too low.
Do not drive on! Check the brake fluid level.
If the brake fluid level is too low, inform a qualified workshop. Have the brake system checked.
Changing the brake fluid
The brake fluid should be changed by a qualified workshop. Volkswagen recommends using a
Volkswagen dealership for this purpose. Only brake fluid that conforms with the required
specification should be used.

WARNING
Brake failure or reduced braking efficiency can be caused by the brake fluid level being too low or by
brake fluid that is too old or unsuitable.

Do not work on the electrical system unless you are familiar with the task, aware of the general
safety procedures and have the correct equipment, service fluids and suitable tools. Serious injuries
can be caused by carrying out work incorrectly ⇒ . All work should be carried out by a qualified
workshop. Volkswagen recommends using a Volkswagen dealership for this purpose.
Information for warning and indicator lamps lit up can be found in the troubleshooting at the end of
the chapter ⇒ Troubleshooting .
Location of the 12-volt vehicle battery
The 12-volt vehicle battery is located in the engine compartment.
Explanation of the warnings on the 12-volt vehicle battery
Always wear eye protection!Electrolyte is very corrosive and caustic. Always wear
protective gloves and eye protection!Fire, sparks, naked lights and smoking are prohibited!
A highly explosive mixture of gases is given off when the 12-volt vehicle battery is charging!
Always keep children away from electrolyte and the 12-volt vehicle battery!Always
observe the owner's manual!

WARNING
Any work on the 12-volt vehicle battery and the electrical system can cause serious chemical burns,
fire or electric shocks. Always read and observe the following warnings and safety information
before carrying out any kind of work:
any work on the 12-volt
vehicle battery and also disconnect the negative cable from the 12-volt vehicle battery.
-volt vehicle battery.

12-volt vehicle battery, ensure that your hands, arms and face in particular are protected from acid
spillages.
r work near naked flames or sparks.
discharge.

-volt vehicle battery. It can explode. Damaged 12-volt vehicle batteries
must be replaced as soon as possible.

Connecting the 12-volt vehicle battery
-volt vehicle
battery.
e cable and then the negative cable ⇒ .
Various indicator lamps may light up after the 12-volt vehicle battery has been connected and the
ignition is switched on. They will go out when you drive a short distance at a speed of approximately
15 – 20 km/h (10 – 12 mph). If the indicator lamps remain lit up, the vehicle should be checked by a
qualified workshop.
If the 12-volt vehicle battery was disconnected for an extended period, the system may not able to
calculate or correctly display the time when the next service is due ⇒ Instrument cluster . Observe
the maximum permissible service intervals ⇒ Service .
Automatic switch-off for electrical consumers
The intelligent vehicle electrical system management function automatically implements a range of
measures to prevent the 12-volt vehicle battery from discharging under high loads:


power supply to the 12-volt socket and the cigarette lighter may be interrupted temporarily
while the engine is being started.
The vehicle electrics management system cannot always prevent the 12-volt vehicle battery from
being discharged, for example if the ignition is left on over a long period with the engine off or the
side lights or parking lights are left on over a long period of time.
12-volt vehicle battery is discharged
gnition is switched on.

⇒ Auxiliary heater and ventilation .

WARNING
Incorrectly mounting the battery and using incorrect 12-volt vehicle batteries can cause short
circuits, fire and serious injuries.
-free and leak-proof 12-volt vehicle batteries that have the same
properties, specifications and dimensions as the factory-fitted 12-volt vehicle battery.

WARNING
A highly explosive mixture of gases is given off when the 12-volt vehicle battery is being charged.

-volt vehicle batteries should be charged only in well-ventilated spaces.
-volt vehicle battery. Discharged 12-volt vehicle batteries can
already freeze at temperatures of around 0°C (+32°F).
-volt vehicle battery must be replaced if it has ever been frozen.
the negative cable.

NOTICE
-volt vehicle batteries if the ignition is switched on or the engine is
running. Never use a 12-volt vehicle battery that does not correspond with the vehicle's
specifications. This can damage the electrical system or electronic components and electrical
malfunctions can occur.
to the 12-volt socket or to the cigarette lighter in order to charge the 12-volt vehicle battery. The
electrical system of the vehicle could otherwise be damaged.

12-volt vehicle batteries may contain toxic substances such as sulphuric acid and lead. Dispose of the
12-volt vehicle battery in accordance with the regulations.

Electrolyte can pollute the environment. Collect any service fluids that escape or are spilt and
dispose of them properly.
Troubleshooting
First read and observe the introductoryinformation and safety warnings⇒Introduction 
Vehicle battery (12-volt)
The indicator lamp lights up red.
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 red and the text message 12 V battery not charging. Stop vehicle.
is displayed.