2021 AUDI TT warning light

8S1012721BE
Intelligent Technology



can affect driving stability and increase the
risk of a collision.

@) Tips
— The ABS and ASR only function correctly
when all four wheels have a similar wear
condition. Different tire sizes can lead toa
reduction in motor power.
— You may hear noises when the systems de-
scribed are working.
Sica Re meal
The ESC is automatically switched on when the ignition is switched on.


eS
5 Ss
> 6

Fig. 112 Upper center console: £0 button
The ESC is designed to function in levels. Depend-
ing on the level that is selected, the stabilization
function of the ESC will be limited or switched
off. The amount of stabilization control will differ
depending on the level.
The following examples are unusual situations
where it may make sense to switch sport mode
on in order to allow the wheels to spin:
— Rocking the vehicle to free it when it is stuck
— Driving in deep snow or on loose ground
— Driving with snow chains







You should only switch sport mode on or
switch ESC/ASR off if your driving abilities and
road conditions permit.
— The stabilization function is limited when
sport mode is switched on. The driving
wheels could spin and the vehicle could
swerve, especially on slick or slippery road
surfaces.

Sport mode on ESC/ASR off Sport mode off or ESC/ASR
on
Behavior The ESC and ASR stabiliza- | The stabilization function is | The full stabilization func-
tion functions are limited not available > A\. ESC and _|tion of the ESC and ASR is
SA. ASR are switched off. available again.
Operation Press the [£| button briefly. | Press and hold the |#«| but- | Press the [2] button again.
ton longer than three sec-
onds.
Indicator Biturns on. BBand aa turn on. Baiturns off or J and
lights aa turn off.
Messages Stabilization control (ESC): | Stabilization control (ESC): | Stabilization control
sport. Warning! Limited off. Warning! Restricted (ESC): on
stability stability
TN WARNING —There is no vehicle stabilization when

ESC/ASR are switched off.

@ Tips
fully available.

— If the ESC is limited, switched off, or mal-
functioning, systems with an automatic
braking intervention function may not be
105

Intelligent Technology

— If malfunctions occur in other systems or
certain driver assist systems are active, the
ESC must be switched on by the system. The
ESC
may switch on automatically and can-
not be operated with the button.
Brakes
(eee eleurl sel)
You can apply the vehicle's brakes using the brake
pedal.
Operating noise
Noises may occur when braking depending on the
speed, braking force, and outside conditions such
as temperature and humidity.
Braking effect
The response time from the brakes depends on
the weather and environmental conditions. To
ensure the optimal braking effect, the brake sys-
tem is cleaned at regular intervals. This is done
by applying the brake pads to the brake rotors for
a short period of time when driving at high
speeds when the windshield wipers are switched
on.
If the brake system becomes damp, for example
after driving in heavy rain, the braking effect may
be delayed. Other factors that could temporarily
increase the response time of the brakes include:
— Wet conditions
— Low temperatures, ice, and snow
— Roads covered in salt
— Dirty brake pads
Corrosion
Corrosion may form on the brake rotors if there is
no heavy braking, if the vehicle is not driven for
long periods of time, or if the vehicle is not driv-
en
frequently or for long distances. In this case,
braking heavily several times while driving at
high speeds can clean the brake rotors > A\.
Brake pads
New brake pads do not achieve their full braking
effect during the first 250 miles (400 km). They
must be “broken in” first. However, you can com-
106
pensate for the slightly reduced braking force by
pressing firmly on the brake pedal. Avoid heavy
braking during the break-in period.
Brake pad wear depends largely on the way the
vehicle is driven and on operating conditions.
Brake pad wear increases when driving frequently
in the city or short distances or when using a very
sporty driving style.
Ceramic brakes
Applies to: vehicles with ceramic brakes
Ceramic brakes provide excellent deceleration
rates.
The break-in period for new ceramic brakes may
be significantly longer than for standard brake
rotors. Due to the properties of the material,
they may cause noises at lower speeds. Ceramic
brakes also absorb more moisture in wet condi-
tions. Therefore, there will temporarily be less
braking force than when the brakes are dry. You
can compensate for this by pressing the brake
pedal harder.

ZA\ WARNING
— Only apply the brakes for the purpose of
cleaning the brake system when road and
traffic conditions permit. You must not en-
danger other road users and increase the
risk of an accident.
— Due to the risk of injury, only have an au-
thorized Audi dealer or authorized Audi
Service Facility work on the brake system.
Incorrect repairs could impair the function.
— Never let the vehicle roll while the engine is
stopped because this increases the risk of an
accident.
— During automatic braking maneuvers, the
brake pedal may move downward automati-
cally. To reduce the risk of injury, do not
place your foot under the brake pedal.
@) Note
— Never let the brakes “rub” by pressing the
pedal lightly when braking is not actually
necessary. This can cause the brakes to over-
heat and increases braking distance and
causes wear.

8S1012721BE
Intelligent Technology

— Utilize the engine braking effect when driv-
ing downhill by selecting the “S” driving
program > page 82. This reduces the load
on the brakes. If you need to brake addition-
ally, brake in intervals and not continuously.
G) Tips
— If you retrofit your vehicle with a front spoil-
er, wheel covers or similar items, make sure
that the air flow to the brakes is not ob-
structed. Otherwise the brake system can
overheat.
— Also refer to the information about brake
fluid > page 209.
Messages
EG / ©) Brakes: malfunction! Safely stop ve-
hicle
There is a malfunction in the brake system. If
[ES / Gana Blalso turn on, there is a malfunc-
tion in the ABS, ESC, and braking distribution. If
the brake booster is not working, you have to use
much more force when braking the vehicle.
Do not continue driving. See an authorized Audi
dealer or authorized Audi Service Facility for as-
sistance. Read and follow the other safety pre-
cautions > A\.
GG / @ Warning! No brake booster function
If the brake booster is not working, you have to
use much more force when braking the vehicle.
See an authorized Audi dealer or authorized Audi
Service Facility for assistance.
GG if @ Brake pads: wear limit reached. You
can continue driving. Please contact Service
The brake pads are worn. Drive to an authorized
Audi dealer or authorized Audi Service Facility as
soon as possible to have the malfunction correct-
ed.
Ga / @ Parking brake: malfunction! Safely
stop vehicle. See owner's manual
— If the indicator light and the message appear
when the vehicle is stationary or after switch-
ing the ignition on, check if you can release the
parking brake. If you cannot release the parking
brake, see an authorized Audi dealer or author-
ized Audi Service Facility. If you can release the
parking brake and the message still appears,
see an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.
— If the indicator light and message appear while
driving, the hill start assist or emergency brak-
ing function may be malfunctioning. It may not
be possible to set the parking brake or release
it once it has been set. Do not park your vehicle
on hills. See an authorized Audi dealer or au-
thorized Audi Service Facility for assistance.
Other indicator lights
When you switch the ignition on, the IBRAKE| /@
indicator light turns on briefly to check the func-
tion. If the indicator light does not turn on, there
is a system malfunction.
fe / @ stays on, there is a malfunction in
the brake system.

ZA\ WARNING
If a malfunction occurs in the ABS, ESC, and
braking distribution, interventions that stabi-
lize the vehicle will no longer be available.
This could cause the vehicle to swerve, which
increases the risk that the vehicle will slide.
Do not continue driving. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.

Steering
Electromechanical steering supports the driver's
steering movements by electronically adapting
the power steering depending on the vehicle
speed. The settings depend on the selected Audi
drive select* mode.
Messages
a Steering: malfunction! Please stop vehicle
The power steering may have failed. Adapt your
driving style immediately to compensate for the
fact that it may be more difficult to turn the >
107

Intelligent Technology

steering wheel, and stop your vehicle in a safe lo-
cation as soon as possible. Do not continue driv-
ing. See an authorized Audi dealer or authorized
Audi Service Facility for assistance.
& Steering: malfunction! You can continue
driving
There is a malfunction in the steering system.
Steering may be more difficult or more sensitive.
Adapt your driving style. Have the steering sys-
tem checked immediately by an authorized Audi
dealer or authorized Audi Service Facility. Please
note that the red indicator light may turn on af-
ter restarting the engine. Do not continue driving
if it does.
@ Tips
If the a or El indicator light only stays on
for a short time, you may continue driving.
All wheel drive (quattro)
Applies to: vehicles with all wheel drive

The all-wheel drive system distributes the driving
power variably to the front and rear axle to im-
prove the driving characteristics. It works togeth-
er with selective wheel torque control, which can
activate when driving through curves
=> page 104.
The all-wheel drive system is designed for high
motor power. Your vehicle is exceptionally power-
ful and has excellent driving characteristics both
under normal driving conditions and on snow and
ice. Always read and follow safety precautions
>A.

Z\ WARNING
— Even in vehicles with all wheel drive, you
should adapt your driving style to the cur-
rent road and traffic conditions to reduce
the risk of an accident.
— The braking ability of your vehicle is limited
to the traction of the wheels. In this way, it
is not different from a two wheel drive vehi-
cle. Do not drive too fast because this in-
creases the risk of an accident.

108

— Note that on wet streets, the front wheels
can “hydroplane’” if driving at speeds that
are too high. Unlike front wheel drive
vehicles, the motor RPM does not increase
suddenly when the vehicle begins hydro-
planing. Adapt your speed to the road condi-

tions to reduce the risk of an accident.

Rear spoiler
Applies to: vehicles with retractable rear spoiler

a
id > z
oO


Fig. 113 Center console: button for the rear spoiler
The rear spoiler increases driving stability. The
rear spoiler extends automatically at speeds
above approximately 75 mph (120 km/h). It will
retract automatically when the speed drops be-
low approximately 50 mph (80 km/h).
You can also extend and retract the rear spoiler
manually.
> Extending: press > briefly.
> Retracting: press and hold 3% when driving at
speeds up to approximately 10 mph (20 km/h).
At speeds from approximately 10 mph (20
km/h) to 75 mph (120 km/h), press 3% briefly.
Messages
If the HB or Mturns on and a corresponding
message appears, the rear spoiler may not be
able to extend due to a malfunction. This could
change the vehicle's driving characteristics at
high speeds. Do not drive faster than 85 mph
(140 km/h).
The rear spoiler may be blocked. Clean the rear
spoiler compartment > page 237, close all vehi-
cle doors and lids, and wait several minutes until
the vehicle has completely turned off. If the indi-
cator light turns on again the next time the >

8S1012721BE
Intelligent Technology

engine starts, drive immediately to an authorized
Audi dealer or authorized Audi Service Facility to
have the malfunction repaired. The color of the
indicator light depends on the vehicle speed.

ZA WARNING
— Make sure that the rear spoiler is extended
at speeds above 85 mph (140 km/h). Other-
wise, the reduced driving stability will in-
crease the risk of an accident.
— When extending and retracting the rear
spoiler, make sure there are no persons or
objects within the spoiler range to reduce
the risk of injury.

@) Note
—To reduce the risk of damage, do not press
on the rear spoiler if pushing the vehicle.
—To reduce the risk of damage, never lean
against the rear spoiler or place heavy pres-
sure on it.
—To reduce the risk of damage when extend-
ing or retracting the rear spoiler, make sure
the luggage compartment lid is closed and
there
is nothing in the way of the rear spoil-
er.
Energy management
Your vehicle is equipped with an intelligent ener-
gy management system for distributing electrici-
ty. This significantly improves the starting ability
and increases the vehicle battery life.
G) Tips
— If you drive short distances frequently, the
vehicle battery may not charge enough
while driving. As a result, convenience func-
tions for electrical equipment may be tem-
porarily unavailable.
— The vehicle battery will gradually drain if
the vehicle is not driven for long periods of
time, or if electrical equipment is used
when the engine is not running. To ensure
that the vehicle can still be started, the
electrical equipment will be limited or
switched off.
109

Voice recognition system

Voice recognition system
General information
Applies to: vehicles with voice recognition system
You can operate many functions in the vehicle
easily using voice commands.
Using the voice recognition system optimally
> Speak clearly and distinctly at a normal volume.
Speak louder when driving faster.
> Emphasize the words in the commands evenly
and do not leave long pauses.
> Close the doors, the windows, and the power
top* to reduce background noise. Make sure
that passengers are not speaking when you are
giving a voice command.
> Do not direct the vents toward the hands-free
microphone, which is in the roof headliner/on
the driver’s safety belt* near the front interior
lights. For additional information on the safety
belt microphone’, see > page 140.
> Only the driver should speak to the system, be-
cause the handsfree microphone is aimed to-
ward this seating position.

ZA\ WARNING
— Direct your full attention to driving. As the
driver, you have complete responsibility for
safety in traffic. Only use the functions in
such a way that you always maintain com-
plete control over your vehicle in all traffic
situations.
— Do not use the voice recognition system in
emergencies because your voice may change
in stressful situations. The system may take
longer to dial the number or may not be
able to dial it at all. Dial the emergency
number manually.

G) Tips
There are no voice guidance* prompts when a
dialog is active.
Operating
Applies to: vehicles with voice recognition system
Requirement: the ignition and the MMI must be
switched on. A system language supported by
122
the voice recognition system must be set. There
must be no phone calls in progress and the park-
ing aid must not be active.
> Switching on: briefly press the %» button @)
=> page 14, fig. 10 on the multifunction steer-
ing wheel and say the desired command after
the Beep.
> Switching off: press and hold the ™» button,
or:
» Say the command Cancel.
> Pausing: say the command Pause. To resume,
press the ™» button.
> Correcting: press the button one time G)
=> page 12, fig. 6, or:
» Say the command Correction.
Input assistance
The system guides you through the input with
visual and audio feedback.
— Visual input assistance: after switching on
voice recognition, a display with a selection of
possible commands appears. This command
display can be switched on or off. Select:
MENU] button > Settings > left control button
> MMI settings > Speech dialog system.
— Audio input assistance: to have the possible
commands read, press the “9 button on the
multifunction steering wheel briefly and say
Help.


Additional settings
See > page 194, Voice recognition system.
Gi) Tips
—The dialog pauses when there is an incom-
ing phone call and will continue if you ig-
nore the call. The dialog ends if you answer
the call.
— You can select an item in the list using ei-
ther the voice recognition system or the
control knob.

8S1012721BE
Media



ZA WARNING
—To reduce the risk of an accident, only use
Audi connect services and the Wi-Fi hotspot
only if the traffic situation permits it. Read
and follow the guidelines provided in
=>
page 110, Traffic safety information.
— It is only safe to use tablets, laptops, mobile
devices and other similar devices when the
vehicle is stationary because, like all loose
objects, they could be thrown around the in-
side of the vehicle in a crash and cause seri-
ous injuries. Store these types of devices se-
curely while driving. Also read the warnings
in the chapter > page 52.

Multimedia connections
USB adapter for Audi music interface or
USB charging port
Applies to: vehicles with Audi music interface/USB charging
es
2
<
eg

[RAH-9203|

@) Note
Always follow the information found in >@® in
General information on page 141.
G) Tips
— Depending on the Internet connection and
network traffic, the connection may discon-
nected when online media sources are play-
ing.
— Online media and Internet radio usage de-
pends on the service availability of the third
party provider.
— Audi simply makes the access to online me-
dia services possible through the MMI and
does not take any responsibility for the con-
tent
of the online media services.
— Depending on the mobile device being used,
there may be interruptions during media
playback and when using the myAudi app.
To avoid interruptions when using a mobile
device, do not lock the screen on your mo-
bile device and keep the myAudi app in the
foreground.
— Contact an authorized Audi dealer or au-
thorized Audi Service Facility for additional
information about online media.
Fig. 152 Audi Genuine Accessories: USB adapter
Depending on the vehicle equipment, you can
connect your mobile devices (such as a smart-
phone or MP3 player) to the Audi music interface
or a USB charging port using a special USB adapt-
er.
You can purchase the USB adapter cable from an
authorized Audi dealer or at specialty stores:
@ USB adapter for devices with a micro USB
connection
@ USB adapter for Apple devices with a Light-
ning connection
@ USB adapter for devices with USB type C con-
nection
@ USB adapter for Apple devices with a dock
connector
C) Note
Handle the USB adapter carefully. Do not al-
low it to be pinched.

8S1012721BE
Audi smartphone interface

Audi smartphone
interface
Setup
Applies to: vehicles with Audi smartphone interface
You can connect your smartphone to the MMI us-
ing the Audi smartphone interface. Certain con-
tent on your smartphone is adapted to the Info-
tainment system display while driving and can be
operated through the MMI control panel.
Requirement: the vehicle must be stationary and
the ignition must be switched on. iPhone genera-
tion 6 or higher with Lightning connector and iOS
7.1.2 operating system or higher, or smartphone
with Android Auto app and Android 5.0 Lollipop
operating system or higher.
> Connect your smartphone to the Audi music in-
terface > page 776 using the applicable USB
adapter > page 175, fig. 152.
> Select and confirm Activate Apple CarPlay or
Activate Android Auto now.
> Follow the system instructions.
> Pay attention to any additional system prompts
on your smartphone, if applicable.
If you chose not to use Apple CarPlay or Android
Auto when connecting your smartphone for the
first time, you can start the Audi smartphone in-
terface later on using the Connection manager.
> Select: [MENU] button > Audi smartphone in-
terface > Change to connection manager.
> Connect your smartphone to the Audi music in-
terface > page 7176 using the applicable USB
adapter > page 175, fig. 152.
> Select and confirm Audi smartphone interface
in the Connection manager => page 790. You
can select your smartphone in the list of devi-
ces that are already paired > page 197.
> Follow the system instructions.




mobile devices while driving, because this in-
creases the risk of an accident.


ZA\ WARNING
Driving requires your complete and undivided
attention. As the driver, you have complete re-
sponsibility for safety in traffic. Never operate


In preparation at the time of printing.
() Note
Read the information about Audi connect, and
be sure to note the connectivity costs section
=> page 1417.
G) Tips
— The functions that can be used depend on
the following factors, among others:
—The brand of your smartphone
— The version of the operating system in
your smartphone
— The software version of the app used
— The USB adapter cable and correct connec-
tion
— Your cell phone service provider
— The customized settings on your smart-
phone
— One of the factors above or a combination
of any of them could cause your smart-
phone to be incompatible with the Audi
smartphone interface. Compatibility cannot
be guaranteed for all types of smartphones.
For more information and assistance, refer
to the user guide and the manufacturer of
your smartphone.
— If the connected smartphone has voice con-
trol, you can operate your smartphone using
the external voice recognition system*
=> page 127.
—The menu language shown in the MMI is
based on the settings in your smartphone.
— The time displayed in the MMI is based on
the settings in your smartphone.
— Some MMI functions are not available when
there is an active Audi smartphone interface
connection.
— You cannot connect any mobile devices via
Bluetooth when an Audi smartphone inter-
face connection is active.
— When the Apple CarPlay connection is ac-
tive, Tag this song for iTunes*”) is not avail-
able > page 165.
187