2020 AUDI A3 warning light

Assist systems

Driving in stop-and-go traffic
Applies to: vehicles with Audi adaptive cruise control

ig. 115 Instrument cluster: safe start monitor
The adaptive cruise control system assists you in
stop-and-go traffic. If a vehicle that is detected
ahead stops, your vehicle will brake and stay at a
stop, within the limits of the system.
> To resume driving with adaptive cruise control,
tap the accelerator pedal or
> Pull the lever toward you into position @)
=> page 122, fig. 116.
Starting to drive with adaptive cruise
control!)
As long as the message ACC autom. go is dis-
played and the object detected ahead starts to
move, your vehicle will continue driving > A\. You
can activate ACC: autom. go again for a short
time by pulling the lever to position @).
The ACC: autom. go start mode ends when the
brake pedal is pressed.
For safety reasons, your vehicle will only start to
drive automatically if:
— The driver's safety belt is fastened
— All doors and the hood are closed
— Your vehicle is not stationary for more than
three minutes
Safe start monitor
If an obstacle is detected when you start driving,
you will be alerted to the danger by the B indi-
cator light and the image in the instrument clus-
ter display > fig. 115 > A. An audio signal will
also sound. Your vehicle will drive more slowly

D_ This is not available in some countries.
122
when starting. This may also occur in some situa-
tions when there is no apparent obstacle.
— Press the brake pedal to slow your vehicle
down.

A WARNING
If the message ACC: autom. go!) appears,
your vehicle will start driving, even if there is
an obstacle between your vehicle and the ve-
hicle driving ahead. This increases the risk of
an accident.
G) Tips
If adaptive cruise control is active and your ve-
hicle does not start driving even though the
message ACC: autom. go”) appears, you can
start driving by tapping the accelerator pedal.
Interrupting cruise control
Applies to: vehicles with Audi adaptive cruise control


B4M-0233


Fig. 116 Operating lever
Requirement: adaptive cruise control must be
switched on.
Overriding cruise control
> To accelerate manually, pull the lever toward
you into position @) and hold it there, or press
the accelerator pedal. The message ACC: over-
ride appears.
> To resume cruise control, release the lever or
take your foot off the accelerator pedal.
Interrupting cruise control while driving
> Move the lever into position @). The message
ACC: standby appears. Or

Assist systems

Driving program > Comfort, Standard or Dy-
namic.
Setting the driving mode on vehicles with
drive select*
See > page 91.
@ Tips
Your settings are automatically stored and as-
signed to the remote control key being used.
Driver intervention request
Applies to: vehicles with Audi adaptive cruise control


Fig. 118 Instrument cluster: request for driver interven-
tion
The request for driver intervention instructs you
to take over if the adaptive cruise control braking
function is not able to maintain a sufficient dis-
tance to the vehicle driving ahead > fig. 118.
Pele Me EAM Hee Cll)
Applies to: vehicles with Audi adaptive cruise control
This function measures the time between the ve-
hicle driving ahead and shows this in the instru-
ment cluster display.
Fig. 119 Instrument cluster: distance indicator/warning
124
Description
At speeds above approximately 40 mph (65
km/h), this function measures the distance to the
vehicle ahead as time.
> Switch the adaptive cruise control display on in
the instrument cluster display > page 17.
The B indicator light turns on if you fall below
the set distance.
Setting the warning threshold
You can set, change or delete the warning thresh-
old in the Infotainment system.

> In the Infotainment system, select: [MENU
button > Vehicle > left control button > Driver
assistance > Distance warning.


Z\ WARNING
— Read and follow the warnings on > A\ in
General information on page 119.
— The driver is always responsible for adhering
to the regulations applicable in the country
where the vehicle is being operated.
(i) Tips
You may fall below he warning threshold
briefly when passing or when quickly ap-
proaching a slow vehicle. There is no warning
in this scenario. A warning is given only if you
fall below the warning threshold for an ex-
tended period of time.
Messages
Applies to: vehicles with Audi adaptive cruise control

ACC: unavailable
The system cannot guarantee that it will detect
vehicles correctly and it has switched off. The
sensor was moved or is faulty. Drive to an author-
ized Audi dealer or authorized Audi Service Facili-
ty immediately to have the malfunction correct-
ed.
a ACC: currently unavailable. No sensor view
Si ACC: currently unavailable. Sensor vision re-
stricted due to surroundings. See owner's man-
ual

8V2012721BK
Assist systems

This message appears if the sensor view is ob-
structed, for example by leaves, snow, heavy
spray or dirt. Clean the sensor > page 119,
fig. 109.
ACC: currently unavailable. Incline too steep
The road exceeds the maximum possible angle
for safe adaptive cruise control operation. The
adaptive cruise control cannot be switched on.
ACC: only available in D, Sor M
The adaptive cruise control system only works in
the specified selector lever position. Select the
respective selector lever position.
ACC: parking brake applied
The adaptive cruise control system switches off
automatically if the parking brake is set. The
adaptive cruise control is available again after re-
leasing the parking brake.
ACC: currently unavailable. Stabilization
control input
This message appears if the Electronic Stabiliza-
tion Control (ESC) is taking action to stabilize the
vehicle. In this case, adaptive cruise control
switches off automatically.
ACC: Please take over!
This message appears if the vehicle rolls back
when starting on a slight incline, even though
ACC is active. Press the brake pedal to prevent
the vehicle from rolling or starting to move.
ACC: currently unavailable. Park assist active
The systems switch off when Park assist* is ac-
tive. The systems are available again after com-
pleting the parking process.
Distance warning: malfunction! Please contact
Service
The system cannot guarantee that it will detect
vehicles correctly and it has switched off. The ra-
dar sensor was moved or is faulty. Drive to an au-
thorized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor-
rected.
Distance warning: currently unavailable. Sensor
view limited due to surroundings.
This message appears if the sensor view is ob-
structed, for example by leaves, snow, heavy
spray or dirt. Clean the sensor > page 119,
fig. 109.
Distance warning: currently unavailable. See
owner's manual
This message appears if the system has a tempo-
rary failure. If this occurs multiple times, drive to
an authorized Audi dealer or authorized Audi
Service Facility immediately to have the malfunc-
tion corrected.
Fasten seat belt
The system is not completely available if the driv-
er's seat belt is unfastened.
Stat. obj. ahead
This message appears if you would like to switch
the system on and there is a stationary object di-
rectly in front of your vehicle.
Door open
The system is not available when the vehicle is
stationary and the driver's door is open.
Audi pre sense
Introduction
Applies to: vehicles with Audi pre sense
Within the limits of the system, the pre sense
functions can initiate measures in particularly
dangerous situations to protect the vehicle pas-
sengers and other road users.
— Due to the interlinking of various vehicle sys-
tems, critical driving situations can be detected
by pre sense basic and measures for preventa-
tive occupant protection are can be initiated.
— The pre sense front uses the data from the ra-
dar sensors and calculates the probability of an
accident > page 119. An impending collision
with vehicles can be detected within the limits
of the system. In this case, the system warns
the driver visually, acoustically and with a jerk
on the brakes if necessary. If needed, it can ini-
tiate a partial or full deceleration to reduce the
collision speed or to avoid the collision under
certain circumstances. In conjunction with pre >
125

Assist systems

sense basic, the front safety belts are also re-
versibly tensioned when needed. The pre sense
front is also active when adaptive cruise con-
trol* is switched off.

ZA\ WARNING
Also follow the general instructions found in
= A in General information on page 119.
G) Tips
— Certain pre sense functions switch off when
driving in reverse.
— The pre sense functions may not be availa-
ble if there is a malfunction in the ESC sys-
tem or the airbag control module.
— Note that the reversible belt tensioner on
the front passenger's side deactivates when
the front passenger's airbag is deactivated.
— Certain Audi pre sense front functions are
unavailable or have limited availability for
approximately 20 seconds after starting the
vehicle (may be longer depending on the
driving situation).
— Switch the pre sense off when you are not
using public streets or when loading the ve-
hicle onto a vehicle carrier, train, ship, or
other type of transportation. This can pre-
vent an undesired intervention from the pre
sense system.
ONT ees
Applies to: vehicles with Audi pre sense basic

The pre sense basic functions are activated at a
speed of approximately 20 mph (30 km/h) or
higher.
The following functions can be triggered under
certain conditions within the limits of the sys-
tem:
—Tensioning of the safety belts (for example,
during heavy braking): the front safety belts
have reversible belt tensioners. If a collision
does not occur, the safety belts loosen slightly
and are ready to trigger again.
— Initiating the closing of the windows and the
panoramic glass roof* (for example when un-
der- or oversteering).
126
Audi drive select*: the trigger times are adjusted
depending on the mode selected.
Audi pre sense front
Applies to: vehicles with Audi pre sense front

RAH-8970
Audi pre sense


Fig. 120 Instrument cluster: approach warning
Description
Within the limits of the system and depending
on the situation and speed, pre sense front can
warn you about impending collisions with sta-
tionary, stopped, and moving vehicles and ini-
tiate appropriate braking measures.
If detection is not possible, then pre sense front
does not react.
The following functions trigger in conjunction
with pre sense basic at corresponding vehicle
speeds:
— Reversible tensioning of the front safety belts
— Closing the windows and panoramic glass roof*
Early warning/acute warning
The system can provide visual and audible warn-
ings when dangerous situations are detected. The
early warning may occur if:
—a vehicle driving ahead brakes strongly,
— your vehicle is traveling at speeds between ap-
proximately 20 to 50 mph (30 to 85 km/h) and
it approaches a stationary vehicle.
— your vehicle is traveling at speeds between ap-
proximately 20 to 155 mph (30 to 250 km/h)
and it approaches a vehicle that is clearly trav-
eling more slowly or a vehicle in your direction
of travel that is stopped.
When this warning occurs, it may only be possi-
ble to avoid a collision by swerving or braking >

Assist systems

Settings in the Infotainment system
Applies to: vehicles with Audi pre sense

> Select in the Infotainment system: [MENU] but-
ton > Vehicle > left control button > Driver as-
sistance > Audi pre sense.

System - The pre sense functions can be switched
on and off.
If the system is switched off, it switches on again
automatically once the ignition is switched on
again.
Prewarning - The early warning can be switched
off permanently or the pre sense front warning
point can be set (Early/Medium/Late).
Set the warning time for the early warning to
Early at first. If this causes undesired early warn-
ings to appear, then set the warning time to Me-
dium. The Late warning time should only be set
in special circumstances.
@ Tips
If the system is switched off, it switches on
again automatically once the ignition is
switched on again.
Messages
Applies to: vehicles with Audi pre sense
& Audi pre sense: malfunction! Please contact
Service
This message appears when the pre sense func-
tion
is affected. For example, this could be
caused by a faulty sensor. If the message stays
on, drive immediately to an authorized Audi deal-
er or authorized Audi Service Facility to have the
malfunction corrected.
Audi pre sense: currently limited. Sensor
view limited due to surroundings.

This message appears if the sensor view is ob-
structed, for example by leaves, snow, heavy
spray or dirt. Clean the sensor if necessary
=> page 119, fig. 109.

Audi pre sense: currently limited
This message appears if the ESC is restricted or
switched off, for example.
128

udi pre sense: currently limited. See own-
er's manual
This message appears when there is a temporary
failure in a subsystem, such as the ESC. If this
message appears repeatedly, drive to an author-
ized Audi dealer or authorized Audi Service Facili-
ty to have the malfunction corrected.
Audi pre sense: emergency braking system
off
This message appears if the pre sense functions
are switched off through the Infotainment sys-
tem or if the system is not ready.
Audi active lane assist
Applies to: vehicles with Audi active lane assist
Active lane assist (lane departure warning) de-
tects lane marker lines within the limits of the
system using a camera in the windshield. If you
are approaching a detected lane marker line and
it appears likely that you will leave the lane, the
system will warn you with corrective steering.
You can override this steering at any time. If you
pass over a line, the steering wheel will vibrate
lightly. In order for this warning vibration to oc-
cur, it must first be switched on in the Infotain-
ment system. Active lane assist is ready for oper-
ation when the lane marker line is detected on at
least one side of the vehicle.
The system is designed for driving on express-
ways and highways and therefore only activates
at speeds above approximately 40 mph (65
km/h).
Applies to: vehicles with Audi side assist
If you activate a turn signal when active lane as-
sist is ready and it classifies a lane change as crit-
ical because of vehicles traveling alongside you or
approaching you, there will be noticeable correc-
tive steering shortly before you leave the lane.
This will attempt to keep your vehicle in the lane.
Applies to: vehicles without Audi side assist
The system will not warn you before crossing a
lane marker line if you have activated the turn >

8V2012721BK
Assist systems

signal. In this case, it assumes that you are
changing lanes intentionally.

Z\ WARNING
— The system warns the driver that the vehicle
is leaving the lane using corrective steering.
The driver is always responsible for keeping
the vehicle within the lane.
— The system can help you keep the vehicle in
the lane, but it does not drive by itself. Al-
ways keep your hands on the steering wheel.
— Corrective steering may not occur in certain
situations, such as during heavy braking.
— There may be cases where the camera does
not recognize all lane marker lines. Correc-
tive steering can only take place on the side
of the vehicle where lane marker lines are
detected.
— Other road structures or objects could possi-
bly be identified unintentionally as lane
marker lines. As a result, corrective steering
may be unexpected or may not occur.
— The camera view can be restricted, for exam-
ple by vehicles driving ahead or by rain,
snow, heavy spray light shining into the
camera or by dirt on the window. This can
result in active lane assist not detecting the
lane marker lines or detecting them incor-
rectly.
— Under certain conditions such as ruts in the
road, an inclined roadway or crosswinds, the
corrective steering alone may not be enough
to keep the vehicle in the middle of the lane.
— For safety reasons, active lane assist must
not be used when there are poor road and/or
weather conditions such as slippery roads,
fog, gravel, heavy rain, snow and the poten-
tial for hydroplaning. Using active lane as-
sist under these conditions may increase the
risk of a crash.

SY iicealiaremelilie Rela
Applies to: vehicles with Audi active lane assist

B4M-0064|


Fig. 121 Turn signal lever: switching Active lane assist on
and off (example)

B4M-0090


Fig. 122 Windshield: camera window for active lane assist
> Press the button to switch the system on and
off > fig. 121. The indicator light in the instru-
ment cluster turns on or off.
129

Assist systems


Analog instru- | Audi virtual
ment cluster | cockpit*
Meaning on
the corre-
sponding side

Green lines Green line(s) | Active lane as-
7% (left/right) sist is activat-
1% ed and ready
to provide
warnings.
- Red line Active lane as-
(left/right) sist will warn
4X you before the
vehicle leaves
a lane. The
steering wheel
will also vi-
brate lightly.

Yellow lines Gray line(s) Active lane as-
7% (left/right) sist is activat-
1\ ed, but is not
ready to pro-
vide warnings.

Display in the instrument cluster
Applies to: vehicles with Audi active lane assist

Fig. 123 Instrument cluster: active lane assist is switched
on and ready to provide warnings
You can open the active lane assist display using
the buttons in the multifunction steering wheel
=> page 17 or > page 20.

If the system is switched on but is not ready to
provide warnings, one of the following could be
the cause:
— There is no lane marker line
— The relevant lane marker lines are not detected
(for example, markings in a construction zone
or because they are obstructed by snow, dirt,
water or lighting)
— The vehicle speed is below the activation speed
of approximately 40 mph (65 km/h)
— The lane is too narrow or too wide
— The curve is too narrow
— The driver's hands are not on the steering
wheel
@) Tips
— Make sure the camera's field of view
=> fig. 122 is not obstructed by stickers or
anything else. For information on cleaning,
see > page 342.
—In certain markets: if the system is switched
on, it will switch on automatically each time
the ignition is switched on.
130

Display in the in-
strument cluster
Meaning on the corre-
sponding side

Green line(s)
(left or right)
Active lane assist is acti-
vated and ready to pro-
vide warnings.

Red line
(left or right)
Active lane assist will
warn you before the vehi-
cle leaves a lane. The
steering wheel will also
vibrate lightly.

Active lane assist is acti-
vated, but is not ready to
provide warnings.
Gray line(s)
(left or right)

Messages in the instrument cluster display
If the active lane assist switches off automatical-
ly, the indicator light in the display turns off and
one of the following messages appears:
B Audi active lane assist: malfunction! See
owner's manual
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
Audi active lane assist: currently unavaila-
ble. No camera view
This message appears if the camera is unable to
detect the lines. This could happen if:

Parking aid

Parking aid
General information
Applies to: vehicles with parking system plus/rearview cam-
era/park assist
Depending on your vehicle's equipment, various
parking aids will help you when parking and ma-
neuvering.
The parking system plus assists you when park-
ing by audibly and visually indicating objects de-
tected in front of and behind the vehicle
=> page 137.
The rearview camera shows the area behind the
vehicle in the Infotainment system display. The
lines in the rearview camera image help you to
park or maneuver > page 138.
Park assist helps you to locate suitable parking
spaces when parallel or perpendicular parking,
and also helps when leaving a parallel parking
space > page 140.

Z\ WARNING
— Always look for traffic and check the area
around your vehicle by looking at it directly
as well. The parking system cannot replace
the driver's attention. The driver is always
responsible when entering or exiting a park-
ing space and during similar maneuvers.
— Please note that some surfaces, such as
clothing, are not detected by the system.
— Sensors and cameras have blind spots in
which people and objects cannot be detect-
ed. Be especially cautious of small children
and animals.
— Always pay attention to the area around the
vehicle - using the rearview mirror, too.
— The sensors can be displaced by impacts or
damage to the radiator grille, bumper,
wheel housing and the underbody. The park-
ing system may be impaired as a result.
Have an authorized Audi dealer or author-
ized Audi Service Facility check their func-
tion.

136
@) Note
— Some objects are not detected or displayed
by the system under certain circumstances:
— objects such as barrier chains, trailer draw
bars, vertical poles or fences
— objects above the sensors such as wall ex-
tensions
— objects with certain surfaces or structures
such as chain link fences or powder snow
— If you continue driving closer to a low ob-
ject, it may disappear from the sensor
range. Note that you will no Longer be
warned about this obstacle.
— Maintain enough distance from the curb to
reduce the risk of damage to the rims.
@) Tips
— The system may provide a warning even
though there are no obstacles in the cover-
age area in some situations, such as:
— certain road surfaces or when there is tall
grass
— external ultrasonic sources such as from
cleaning vehicles
—in heavy rain, snow, or thick vehicle ex-
haust
— We recommend that you practice parking in
a traffic-free location or parking lot to be-
come familiar with the system. Practice
parking in good light and weather condi-
tions.
— You can change the volume and pitch of the
signals as well as the display > page 144.
— What appears in the infotainment display is
somewhat time-delayed.
— The sensors must be kept clean and free of
snow and ice for the parking aid to operate.