2015 AUDI A3 brake light

76 Driving
removed from the vehicle when the engine
was running.
If the convenience key is no lon­
ger in the veh icle, you cannot switch the igni­
tion on or start the engine once you stop it.
You also cannot lock the vehicle from the out­
side .
Press brake pedal
This message appears if you do not press t he
brake peda l to start the engine in a vehicle
with an automatic transmission .
Please engage N or P
This message appears whe n starting or stop­
p ing the engine if t he selecto r lever is not in
the Nor P pos ition. The eng ine will not star t/
stop.
Shift to P, otherwis e vehicle can roll away.
Door s do not lock if lev er i s not in P
This message appears for safety reasons
along w ith a warning tone . It appears if the
selecto r lever for the automat ic transm iss io n
is not in the P position when switch ing the ig­
ni tion off with the
!S TAR T ENGINE STOPI*
button . Sh ift the sele ctor leve r to t he P posi­
tion. Otherwise, the vehicle could ro ll. You al­
so cannot lock the vehicle using the locking
sensor on the door handle o r using the con­
venience key .
Electromechanical
parking brake
Operation
The electromechanical parking brake replaces
the hand brake .
Fig. 68 Center conso le: Park ing brake
.,. Pull the switch @¢ fig. 68 to set the pa rk­
ing brake. The. (USA models) . (Cana­
da mode ls) indicator light in the button and
in the instrument cluster display turns on .
.,. To release the parking brake, press the brake
pedal or the acce lerator pedal and press the
button @. The . (USA models) /. (Cana­
da mode ls) indicato r light in th e button and
ins trument clus ter tur ns off.
Your vehicle is equipped with an electrome ­
chanical pa rking brak e. The parking bra ke is
designed to p revent the veh icle from rolling
u ninte ntionally and repla ce s the hand b rake.
In add ition to the normal functions of a tradi ­
tio na l ha nd b rake, the electromechanical
parki ng b rake provides va rious conven ien ce
and safe ty f unct ions .
When starting
-The integral hill start assist helps you when
d riving by au tomatical ly re leasi ng the park­
ing bra ke ¢
page 77, Starting from a
stop.
- W hen start ing on i nclines, t he h ill sta rt as­
si st preven ts the v ehicl e from unintentiona l­
ly ro lling back . T he b raking force of the
p ar king br ake is no t released unt il su ffi cien t
driving force has been bui lt up at the
wheels .
Emergency brake function
An emergency b rak ing functions ensu res that
t h e vehi cle can be s lowed down even if the
n ormal brakes f ail¢ page 78, Emergen cy
braking fun ction.
Indicator lights
- I f the pa rk ing brake is set when the ignition
is
switched on , the. (USA models) /.
(Canad a models) indica to r li ght turns on in
t he display and b utton .
- If the pa rk ing brake is se t when the ignition
is
switched off , the. (USA models) /.
(Canada mo dels) indica tor ligh t turns on in
the display and button for about 20 sec­
onds.

& WARNING
-Do not press the accelerator pedal inad­
vertently when the vehicle is stationary and the engine is running and a gear is
selected. Otherwise the vehicle will start
to move immediately and could result in
a crash.
- If the power supply fails, the released
parking brake can no longer engage. In
this case, park the vehicle on level ground and secure it by placing these­
lector lever in the P position (automatic
transmission). See your authorized Audi dealer or qualified repair facility.
(D Note
If the symbol . in the display or the indi­
cator light. (USA models)/ . (Canada
models) in the instrument cluster flashes,
there is a malfunction in the brake system.
Please refer to the detailed description of
the indicator lights¢
page 18.
-If the indicator light . (USA models)/
• (Canada models) or
Ill turns on,
there may be a malfunction in the park­
ing brake ¢
page 19.
(D Tips
-You can set the parking brake at any time
-even with the ignition turned
off. To re-
lease the parking brake, the ignition
must be turned on and the brake pedal
must be pressed.
- If driver 's door is opened while the igni­
tion is switched on, the parking brake
sets automatically. This prevents unin­
tended rolling of the vehicle .
- Occasional noises when the parking
brake is set and released are normal and
are not a cause for concern.
- When the vehicle is parked, the parking
brake goes through a self -test cycle at
regular intervals. Any noises associated
with this are normal.
- If there is a power failure, the parking
brake will not set if it is released, and it
will not release if it is set ¢,&. . See your
Driving 77
authorized Audi dealer or qualified repair
facility.
· Parking
.. Press the brake ped al to stop the vehicle .
.. Pull the switch @ ¢
page 76 , fig . 68 to set
the parking brake.
.. Place the selector lever in the P position .
.. Turn the engine off¢.&_ .
.,. Turn the steering wheel when parking on in­
clines so that the wheels will roll into the
curb if the vehicle starts moving.
& WARNING ~ -
-Always take the vehicle key with you
when leaving the vehicle, even for a short period of time. This applies partic­
ularly when children remain in the vehi­
cle. Otherwise children could start the
engine, release the parking brake or op ­
erate electrical equipment such as power
windows, which increases the risk of an
accident .
- No one should remain in the vehicle
when it is locked, especially children.
Locked doors make it more difficult for
emergency workers to get into the vehi­
cle, which puts lives at risk.
Starting from a stop
The start assist function ensures that the
parking brake is released automatically upon starting.
Stopping and applying the parking brake
.. Pull the switch@¢ page 76, fig . 68 to set
the parking brake.
Starting and automatically releasing the
parking brake
Requirement: The driver's door must be
locked and the driver's safety belt must be
fastened.
.. When you press the accelerator pedal , the
parking brake is automatically released and
your vehicle begins to move.
•

-Starting on inclines in stop-and-go traf­
fic: To help prevent the vehicle from roll­
ing back when starting, press and hold
the brake pedal for several seconds when
the vehicle is stationary .
(D Tips
You can find out if your vehicle is equipped
with Hill Hold by checking at an authorized
Audi dealer or qualified repair facility .
Speed warning system
Introduction
The speed warning system helps you to stay
under a specified maximum speed.
The speed warning system warns you if you
are exceeding the maximum speed that you
have set. You will hear a warning tone when
your speed exceeds the stored value by ap­ proximately 3 mph (3 km/h). An indicator
light . (USA models) . (Canada models) in
the instrument cluster display also turns on at
the same time. The indicator light./.
turns
off when the speed decreases below the
stored maximum speed .
Setting a threshold is recommended if you
would like to be reminded when you reach a
certain maximum speed. Situations where you may want to do so include driving in a country
with a general speed limit or if there is a
specified maximum speed for winter tires .
@ Tips
Even though your vehicle is equipped with
a speed warning system, you should still
watch the speedometer to make sure you
are not driving faster than the speed limit.
Setting the threshold
You can set, change and delete the threshold
in the MMI.
"' Select: Systems or Car systems > Driver as­
sist> Speed warning .
Driving 79
You can set any threshold between 20 mph (30 km/h) and 150 mph (240 km/h). Settings
can each be adjusted in increments of 6 mph
(10 km/h).
Cruise control system
Description
Applies to vehicles: with cruise control system
The cruise control system makes it possible to
drive at a constant speed starting at 15 mph
(20 km/h).
The speed is kept constant by modifying en­
gine power or through an active brake inter­
vention.
.&_ WARNING ~
- Always pay attention to the traffic
around you when the cruise control is in
operation. You are always responsible for
your speed and the distance between
your vehicle and other vehicles.
- For reasons of safety, cruise control
should not be used in the city, in stop­
and-go traffic, on winding roads and
when road conditions are poor (such as ice, fog, gravel, heavy rain and hydro­
planing) -you could have an accident.
- Switch the cruise control
off temporarily
when driving in turning lanes, highway
exits or in construction zones.
- Please note that unconsciously "resting"
your foot on the accelerator pedal pre­
vents the cruise control from braking.
This is due to the control system being
overridden by the driver's acceleration.
- If a brake system malfunction such as
overheating occurs when the cruise con­
trol system is switched on, the braking
function in the system may be switched
off. The other cruise control functions re­
main active as long as the indicator light
II (US models) !l'I (Canadian models)
ison.
~ •

80 Driving
@ Tips
-The cruise control system is idea l for
stretches with speed limits . The driver is
responsible for adhering to the correct
speed.
- The cruise control remains active when
shifting gears.
- The brake lights turn on when the brakes
are activated.
Switching on
Applies to vehicles: with c ruise cont ro l syste m
0
f
~
0
Fig. 69 Operating lever: cruise control system
., To switch the cruise control on, pull the lev­
er into position
CD ¢ fig . 69.
... Drive at the speed to be maintained .
., To store the speed, press the button @. The
II (US models) !Bl (Canadian models)
turns on in the instrument cluster.
Changing speed
Applies to vehicles: with cruise contro l syste m
., To increase or decrease the speed in incre­
ments,
tap the lever in the 010 direction
¢ page 80, fig. 69 .
., To increase or decrease the speed quickly,
hold the lever in the 010 direction until
the desired speed is reached.
Overriding the speed
You can press the acce lerator pedal down to
increase your speed, for example if you want
to pass someone. The speed you saved earlier
will resume as soon as you release the acceler­
ator pedal. If, however, you exceed your saved speed by
5
mph (10 km/h) for longer than 6 minutes, the
cruise control turns off temporarily. The
II
(US models) 1 81 (Canada models) indicator
light in the instrument cluster turns off and
the stored speed is retained .
Preselecting the speed
Applies to vehic les: wit h cruise co ntrol system
You can preselect your desired speed when
the vehicle is stationary.
., Switch the ignit ion on .
., Move the lever into position
CD ¢ page 80,
fig . 69.
., To increase or decrease the speed, tap the
lever in the
010 direction .
This function makes it possible, for example,
to save the speed you want before driving on
the highway . Once on the h ighway, act ivate
the cru ise control by pulling the lever toward
CD -
Switching off
App lies to vehicles: wi th cruise co n trol system
Temporary deactivation
., Press the brake pedal, or
., Press the lever into position @(not clicked
into place)
¢ page 80, fig. 69, or
Switching off completely
., Press the lever into position@(clicked into
p lace), or
., Switch the igni tion off.
The speed you stored w ill be retained if the
c ruise control has been switched off tempora­
rily . To resume the stored speed, re lease the
brake pedal and pull the lever into position
CD.
The stored speed is erased when the cruise
control is switched off complete ly or the igni-
t ion is switched off. ..,

84 Audi adaptive cruise control
Adaptive cruise control
Description
Applies to vehicles: with Audi adaptive cruise co ntrol
)
Fig. 73 Detect ion range
What can ad apti ve crui se contr ol do ?
The adaptive cruise contro l system uses radar
and a video camera. The radar is subject to
designated system limits¢
page 82.
On open roads with no traffic, it functions like
a cruise contro l system. The stored speed is
maintained. When approaching an object
ahead and the system detects it, the adapt ive
cru ise control system automatically brakes to
match that object's speed and then maintains
the stored d istance. As soon as the system
does not detect an object ahead, adaptive
cr uise contro l accelerates up to the stored
speed.
Applies to vehicles w ith an automatic trans­
miss ion*: Within the limits of the system,
adap tive cr uise control ca n bra ke in stop-and­
go traffic until t he vehi cle is station ary and
then begin driving again under cer tain condi­
tions ¢
page 86, Driving in stop-and-go
traffic .
Which functions can be controlled?
When you sw itch adaptive cru ise con tro l on,
you can set the cu rren t speed as the "control
speed"
¢ page 84, Switching on and off .
When driving, you can stop cruise co ntrol
¢
page 86 or change the speed ¢ page 85
at any t ime.
l ) Speed lim its depend on t he cou ntry and t he speedom ­
eter .
You can also adjust the following settings:
- Distance
¢ page 87
-Dr iv ing program¢ page 88
-Dr iving mode ¢ page 88.
Switching on and off
App lies to vehicles: wit h Audi adapt ive cr uise contro l
Fig . 74 Operating lever: switc hing on and off
Fig. 75 Instrument cluster: adaptive cruise control
You can set any speed ll betwee n 20 mph and
95 mp h (30 and 150 km/h).
In dicator lights and mess ages in the ins tru­
ment cluster d isp lay inform yo u about t he cur­
r en t situation and settings.
Switching adaptive cruise control on
"' Pull the lever towa rd you into position (D
¢ fig. 74 . ACC: standb y appea rs in the in­
s trumen t cluster display.
Saving the speed and activating
regulation
"' To save the current speed, press the !SETI
¢fig. 74 butto n. The stored speed is show n
in the tachometer L ED line @and appears
briefly in the information line@¢
fig. 75 . .,..

.. Automa tic transmission: To activate the reg ­
ulation while stationary , you must press the
brake pedal.
Switching adaptiv e cruise control off
.. Push the lever away from you into position
@ until it cl icks into p lace. The message
A CC: off appears.
The stored speed in the L ED line is erased.
@ Indicato r lights
II -adaptive cruise contro l is switched on . No
objects are detected ahead. The sto red speed
is ma inta ined .
• -An object ahead was detected . The adap­
tive cruise control system regulates the speed
and distance to the object ahead and brakes/
accelerates automatica lly.
fai -Automatic transmission: The adapt ive
cr uise control is switched on . An object ahead
was detected. Your vehicle remains stopped
and will not start driving automatically .
• -The automatic brak ing is not eno ugh to
maintain a sufficient d istance to an object
ahead . Yo u must intervene
¢ page 88, Re­
quest for driver intervention.
© Instrument cluster display
I f adap tive cruise contro l is not shown in the
instr ument cluster disp lay, you ca n call it up
using the mu ltifunction steering wheel but ­
tons
¢ page 2 7 .
B ased on t he g raphics in the display, you can
dete rmine if the system is maintaining a dis­
tance to a veh icle ahead and what that dis ­
tance to this vehicle is:
N o vehicle -No object ahead was detec ted .
White vehicle -An object ahead was detected .
Red vehicle -Request for the dr iver to take ac­
t ion ¢
page 88 .
Both arrows on the scale © indicate the dis­
tance to the object ahead. No arrow appears
when the vehicle is on an open road and there
Audi ad apti ve crui se control 85
is no object ahead. If an object is detected
ahead, the ar row moves on t he scale.
T he green zone on t he sca le indicates the
store dis tance . Fo r informa tion on chang ing
the distance, refe r to ¢
page 87. If the dis ­
tance selected is exceeded or not reached, the
arrow moves into the red zone on the scale.
_& WARNING
Improper use of the adaptive cruise con­
trol can cause collisi ons, other accidents
a nd se rious personal injur ies.
- Automatic transmission: If you press the
ISETI butto n when dr iv ing at speeds be­
low 20 mph (30 km/h) , the veh icle accel ­
erates au tomatically up to 20 mph
(30 km/h), which is the mi nimum speed
th at can be set.
{i) Tips
- If you switch the ignit ion or the adaptive
cruise cont rol system off, the set speed
is e rased fo r safety reason.
- With the adaptive cruise control activat­
ed the ESC spo rt mod e cannot be activat­
ed.
- The e lectronic stab ilizat ion cont ro l (E SC)
and the anti-slip-regulat ion (ASR) are a u­
t oma tic a lly turned on w hen the adapt ive
c ruise cont ro l is turned on. Bot h sys tems
canno t be turned off if the a daptive
cruise cont rol is turned on .
Changing the speed
Applies to vehicles: with Audi adaptive cru ise control
0
f
jJ
0
Fi g. 76 Operat ing leve r: c ha ng in g the spee d
0)
"' 0 i.
" a,

88 Audi adaptive cruise control
you can have the adaptive cruise control
me nu extende d I enabled from an autho r­
ized re pair faci lity.
Setting the driving program
Applies to vehicles: with Audi adaptive cruise control
A adaptive cru ise control driving program is
adjustab le on vehicles without Aud i drive se­
lect* .
.. Se lect in the MMI:
!MENUI button> Systems
or Car systems > Driver assistance > Adap·
tive cru ise control
> Driving program >
comfort /standard /dynamic .
Selecting the driving mode
App lies to vehicles: with Audi adaptive cruise control
The adaptive c ruise co ntro l dr iv ing prog ram is
ad justa ble for ve hicles w ith Au di drive se lect
usi ng the dr iv ing mode.
.. Se lect t he des ired driv ing mod e
comfort ,
auto , dynamic
or individual* with the knob
¢ page 10 2.
Request for driver intervention
App lies to vehicles: with Audi adaptive cruise control
Fig . 7 9 In st rum ent clus ter : d river interve ntio n re qu est
In some s ituations, the braki ng from the
adapt ive cr uise control system is not enoug h
to maintain enoug h distance to the object
a head . In these situations, the system will re­
q ues t yo u to take action .
The . indicator light and the graphic in the
d isplay w ill wa rn you about the danger
¢
fig. 79. You will a lso hear a n aud io signa l.
P ress the br ake pedal to s low y our veh icle
do wn .
Driver messages
Applies to vehicles: wit h Aud i adapt ive c ru ise control
IIJ ACC : unavailable
The system cannot gu arantee that it will de­
tect o bject s cor rectly and i s switched off. The
sens or was m ove d or is fa ulty. Drive to your
autho rize d Audi dea le r or a uth ori zed Audi
service facility immediately to have the ma l­
f unct ion corrected .
Ill ACC: currently unavailable . No sensor vi·
sion
fl ACC and Audi pre sense : currently un ­
available. No sen sor vision
T h is message appears if the senso r view is ob·
structe d, for examp le by l eaves, snow, heavy
s pr ay or d irt . C lean t he sensor ¢
page 82,
fig. 70 .
ill ACC: currently unavailable. Gradient too
steep
The road exceeds t he max imum possible an­
gle fo r safe adaptive cruise control operation.
T he adapt ive cr uise control cannot be switch­
ed o n.
ill ACC: only available in D, Sor M
Se lect the D/S or M selector leve r position .
ill ACC: parking brake applied
The adapt ive cr uise control system switch es
off automa tically if th e parki ng br ake is set.
T he adapt ive cru ise con tro l is ava ilable again
aft er re leas ing t he pa rking br ake.
ill ACC: currently unavailable. Stabilization
control input
This message appears if the Electronic Stabili ­
zation Control (ESC) is taking action to stab i·
l ize the veh icle. I n this case, adapt ive cr uise
control switches off automat ica lly .
ill ACC off: manual control!
This message a ppears if t he vehicle ro lls back
whe n start ing on a s light incline, even though
ACC is active. Press the b rake pedal to prevent
the vehicle from rolling or starting to move. .,.

90 Audi pre sense
Audi pre sense
Introduction
Applies to vehicles: with Audi pre sense basic or Audi pre
sense front
Within the limits of the system, pre sense ba­
sic and pre sense front can initiate steps to
protect vehicle occupants in certain danger ­
ous situations.
Critical driving situations can be recognized by
the pre sense front via a network of different
vehicle systems and can take steps to prepare
the vehicle occupants for a potential collision.
The pre sense front works with a radar sensor
and a video camera*.
It also functions within
the limits of the system when adaptive cruise
control* is switched
off.
General information
General information
App lies to vehicles: with Audi pre sense front or Audi
adaptive cruise control
A WARNING
Also follow the general information found
on
~ page 82, General information.
Audi pre sense basic
Descript ion
Applies to vehicles: with Audi pre sense basic
The function of the pre sense basic is activat­
ed at a speed of 10 mph (30 km/h) or higher.
The following functions can be triggered un­
der certain conditions within the limits of the
system:
- Tensioning of the safety belts (for example,
during heavy braking) : The front safety belts
have reversible belt pretensioners. If a colli­
sion does not occur, the safety belts loosen
slightly and are ready to trigger again .
- Closing the windows and the sunroof* (for
example, when over- or understeering): The
windows and the sunroof" close until there is only a small gap open. Audi drive select:
The deployment time is
adapted in dynamic mode.
A WARNING
-The pre sense basic cannot overcome natu- ral physical laws.
It is a system designed to
assist and it cannot prevent a collision. Do not let the increased safety provided
tempt you into taking risks. This could in­
crease your risk of a collision.
- The system can deploy incorrectly due to system-specific limits .
(D Tips
-Certain pre sense basic functions switch
off when ESC is switched off (sport
mode) or when driving in reverse .
- The pre sense basic functions may not be
available if there is a malfunction in the
ESC system or the airbag control mod­
ule .
- Note that with pre sense basic, the rever­
sible safety belt pretensioner on the
front passenger's side deactivates when
the front passenger's a irbag is deactivat­
ed.
Audi pre sense front
Description
Applies to vehicles: with Audi pre sense front or Audi
adapt ive cru ise control
Pre sense front informs you if the distance to
the vehicle ahead falls below the safe distance
for an extended period of time. It can warn of a possible collision and initiate braking ma­
neuvers, within the limits of the system .
When detected in time, the system can assess
dangerous situations where an object ahead
brakes suddenly or if your own vehicle is trav­
eling at a high speed and approaching an ob ­
ject that is moving more slow ly . If detection is
not possible, then pre sense front does not re ­
act.