2011 AUDI A6 warning

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& WARNING (conti nu ed )
• Never allow the closing speed between you and other vehicles
to be so high that the Adaptive Cruise Control may not b e able to
slow your vehicle safely.
If closing speed is too high , you must
appl y the brake s yourself to r educe the risk of a rear-end crash.
• Never re st your foot on the accelerator pedal , especially when
the Adaptive Crui se Control is being used . Pre ssure on the acceler ­
ator will o verride the ACC braking fun ction and prevent the brakes
from being applied when ACC detects a situation when the brakes
must be applied .
• Never use Adaptive Cruise Control when you cannot drive safely
at a steady speed, including on city streets , on winding roads or
when road conditions are poor (for example, on ice, gravel, in fog,
heavy rain or on wet roads that incre ase the risk of hydroplaning ).
• The radar sensor's
vision can be reduced by rain, snow and
heavy road spray. These and simila r conditions can p revent vehi­
cles up ahead from b eing accurately detect ed and in some cases
they may not be detected at all. Do not use ACC when the rad ar
sen sors cannot ac curately detect vehicle s moving ah ead of you in
traff ic.
• Alway s turn off Adaptive Cruise Control when ente ring turn
lanes, exit lanes and construction zones or in similar situations
becaus e the vehicle will automatic ally a ccelerate to the stored
speed when the road ahead is clear .
• To prevent unintended operation, always switch ACC off when
it is not being used.
[ i ) Tips
• For safety reasons, the stored speed is deleted when the ignition
is tu rned off.
• The Electronic Stabilization Program (ESP) and the Anti-Slip Regu­
la tion (ASR) cannot be dea ct iv a te d w he n t he A dapt ive Cruise Co ntr ol
is switched on. If the ESP and the Anti -S li p Reg ulation (ASR) has been deactivated and yo
u then sw itch on the Adapt ive Cr uise Contro l, th e
ES P fu nction w ill als o be a ct iv a te d a utom atically.
• Damage caused by accidents and some minor collisions can affect
t he rad ar sensor settings and c ause the system to malfunction o r
switch off completely .
• Th e radar s ensor cover is heate d. In w in ter cond itions, you sho uld
st ill check befo re dr iv ing to make sur e it is free of ice and snow. If
neces sary, cle an the area ne ar the r ad ar sensor carefull y::::>
page 119,
fig. 107 .
• T o ensure th at th e radar sensor i s not bl ocke d , fo reign obje cts
(e .g. stickers, larger license plate mounts, add-on parts) must not
cover the area near the r ada r senso r::::>
page 119, fig. 1 07. Th e area
near the radar sensor must not be painted, either.
• F or Decla ration o f Compli ance to Uni te d Stat es FCC and I ndustry
Canada regulations::::>
page 349. •
Applies to vehicles : w ith Adaptive Cruise Control
How does Adaptive Cruise Control work?
Vehicles trav eling ahead are det ect ed with the aid of a
radar sensor.
Fig . 108 Basic prin­
cipl e dia gram : Radar
s en sor me asurement
rang e
Adaptive Cr uise Cont rol uses a radar sensor in the fron t of t he vehicle
::::> fig. 108 . The system has limitations::::>
page 131. Things that are
no t moving in yo ur lane and in your dire ct io n of trave l will not be
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detected. The senso r measures the distance to reflective s urfaces
t h at m ust have a cert ain s ize. T he sys tem res ponds only aft er t he
dis tance measurement has been made.
If a measureme nt is not
poss ible, t he system cannot res pond and w ill not react to a vehicle o r
something else u p ahead.
Open road
When th e road is clear, t he Adaptive Cruise Con trol works like cru is e
co ntrol.
It m ainta in s a c onst ant ta rg et spee d sp ecif ie d by the dr ive r.
Driving in traffic
If a sl ower ve hicle dr iv ing ahead is detec ted, the A dap tive Cr uise
Control decele rates (within t he lim its of the system)=>
page 130,
"Driver interven tion promp t" and => page 131, "System lim itatio ns"
t o its speed and af ter adjus ting, tries to maintain the set d istance
from t he ve hicle ahe ad. Th e vehicle m ay temporari ly dr ive slower
t han the set s peed wh ile adjus ting=>
& in " Descr ipt io n" on
page 119 .
If th e vehicle in front acc ele ra tes, Ad aptive Cru ise Contr ol also a ccel­
erates up to the speed t hat you have set.
Situations requiring driver intervention
In some situat ions you will have to use the footbra ke to slow the
vehicle down in order to keep a sa fe distance from vehi cle in fro nt of
you or to avo id a rear -end co llision. I n this s ituation, a symbo l
a ppe ars and a war ning t one soun ds =>
page 13 0.
Passing another vehicle
If you move in to the passing lane and no ve hicle is detected ahea d,
the Adaptive Cruise Control accelerates to the speed you have set and
mai ntains it.
Overriding ACC
You ca n increase your spee d at a ny ti me by steppi ng on t he acceler­
ato r pedal. After you release the accelerator peda l, t he system
adju sts bac k dow n to the s peed yo u previously se t.
Controls and equip ­
ment Safety first
Reducing stopping distance
If the radar sensor de
tects tha t the dis tance to the vehi cle ahea d is
less than defined minim um distance, the brakes a re au toma tically
pre pare d fo r emer gency b rak ing by the driver . The brake pads are
moved very close to t he b rake discs wi thou t ac tually b rak ing t he
vehicle . This bra ke ass istant feature reacts more quickly to t he
dr iv er 's brak ing, and a lso wo rks wh en Ada ptiv e Cr uise Contro l is off .
T he stopping distance is reduced as a result of this advance b rak e
pre par at ion. Th is fu n ction does n ot p erform a ny eme rgency brak ing
maneuve rs by itself; t he d river must always app ly the brakes.
& WARNING
• Never rely on the distance control feature of ACC alone to
prevent rear-end collisions. Always be prepared to brake and take
evasive action to avoid collisions and other accident situations.
• Never allow the closing speed between you and other vehicles
to be so high that the Adaptive C ru ise Control m ay not be able to
slow your vehicle safely. If closing speed is too high, you must
apply the brakes yourself to reduce the risk of a rear-end crash.
[I) Tips
Please note that the amo unt o f acce leration the Ada ptive Cr uise
C on trol uses depe nds on t he Dist ance se tt ing se lec ted . DIS TA NCE 1
gives you accelerat io n that is dynamic and spo rty . DISTANCE 4, on the
o th er h an d , gives more mo derat e accelera tion. Fo r mo re info rm at ion
about the time intervals=>
page 125, "H ow is the distance (time
interva l) set ?".
• Please note that if the Adapt ive Cru ise Control has begun b raking
t he vehi cle and t he dr ive r ch oose s to brake the vehicle additi onally,
t he brakes may fe el "hard". Thi s is s imply due to the press ure build ­
up of the initia l bra king .
• Adaptive Cr uise Contro l is sw itched off afte r pressing the foot­
br ak e. Th e speed saved up this poin t ca n be resu med. T o resume the
saved speed, release t he brake pedal and p ull the control lever _.,
Vehicle care Technical data

Adaptive Cruise Control IJI ____________ ___,__ __ ____.
App lies to vehicles : with Adaptive Cruise C ont rol
Changing stored speed
The speed can b e chang ed without touc hing th e acc eler ­
ator or brake p edal.
Increasing speed
Fig . 111 C ontrol
le ver: Cha ng in g speed
- Press the lever briefly upwards 0 => fig . 111. US A
models: the speed increases by abo ut 2 .5 mph . Canada
mode ls: spee d wi ll increase by one mar k on the speedom­
eter sca le.
- Press the lever u pwards
0 and hold it . As long as you ho ld
t h e lever dow n, the light diode disp lay in the speedo meter
L E D d isp lay in the speedometer moves fo rward and t he
speed is increased.
Reducing speed
- Pres s the lev er briefly d ownwards Q . USA mod els : the
speed decreases by 2 .5 mp h. Ca nad a mo dels: sp eed will
decrease by one mark on t he speedo meter sca le .
Con trol s and equ ip­
m ent Vehicle
OP-eration
-Press the lever downwards Q and hold it. As long as you
ho ld the lever down , the ligh t dio d e d isp lay in t he speed­
ometer LE D display moves backward a nd the speed is
reduced .
After releasing the lever, the system regu la tes t he speed to the value
just set .
After each adjustment , th e newly-set sp eed is s hown fo r a sho rt tim e
in t he Informa tion line ~
page 129.
& WARNING
Improper use of the Adaptive Cruise Control features and inatten­
tion can lead to an accident causing serious personal injury.
• It is dangerous to use the "RESUME" feature when the previ­
ously set speed is too high f or existing road, traffic or weather
condition s.
• Alway s read and hee d the information and WARNINGS~
& in
" Des cription " on
page 119 .
W Tips
You ca n increase your speed at any time by stepping on the acceler ­
ator pedal. After yo u re lease the acce le rator peda l, t he system
adjusts back down to the speed yo u previously set . A new desired
speed can be stored at any tim e by p ressing the [SET ) button
~ page 122, fig . 110 . •
Vehicle care Do-it-yourselt service iTechnical data

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Applies to veh icles : w ith Adapt ive C ru ise Contro l
Turning Adaptive Cruise Control off
temporarily
In some situations it makes sense to turn Adaptive Cruise
Control off tempo rarily.
Turning control off temporarily
Fi g. 112 Con trol
le ver: Turni ng Ada p·
tiv e C ruise C ontrol off
te mpor aril y
-To sh ut off t he control w it h the save funct ion, ei ther
depress the brake p edal, or
- Press the lever i n the direction of the arrow @=> fig. 112.
Reactivating control
- To resu me the speed and distance contro l, re lease t he
b ra ke pedal a nd press the lever in the directio n of t he
arrow (D.
& WARNING
Imp roper use of the Adapti ve Cruise Control can cause collisions ,
other accidents and seriou s per sonal injuries .
• Never re sume the sto red speed if the speed is too high fo r
prevailing road, traffic or weather condition s.
[I] Tips
When the system is turned off tempo rari ly , th e speed set at that time
i s sto red. •

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How your vehicle responds when accelerating and follow ing other
veh icles wi th AC C opera ting c an be ad apte d to you r person al wishes
through diffe rent driving programs. Depend ing o n which driving
pro gram an d which distance you choose, you r veh icle w ill respon d
Settings DISTANCE
1
Symbol for time interval c;:::::::::,_c;:::::::::, __ _
Support for: Bu mp er-t o-b um per
tra ff ic, br isk driving
Response in " dynamic " driving program 1
Response in "standard " driving program 2
Response in "comfort " driving program 3
(dy namic) 1 ----- 2 ----- 3 ----- 4 ----- 5 (comfortable)
& WARNING
Following other vehicles too closely increases the risk of a crash
and serious personal injury .
• Following other vehicles too closely , particularly at higher
s peeds increase s the risk of collisions and serious personal injury.
• Setting short distances to the traffic ahead reduces the time
and distance available to bring your vehicle to a safe stop and
makes it even more necessary to pay close attention to traffic.
• Always select a speed and distance to traffic ahead that is safe
and appropriate under the prevailing traffic, road , weathe r and
lighting conditions.
• Never rely on the distance control feature of ACC alone to
prevent rear-end collisions . Always be prepared to brake and take
ev asive action to avoid collisions and other accident situations .
• Never allow the closing spe ed between you and other vehicles
to be so high that the Adaptive Cruise Control may not be able to more dynamically or more com
fortab ly when accelerating a nd
bra king. The set ting is se lec ted t hrough the MMI m enu Adaptive
Cruise Control =>
page 131, "MM I sett ings" .
DISTANCE
2 DISTANCE 3 DISTANCE4
~- _ c;:::::::::,_ - c;:::::::::,_ - _ c;:::::::::,_
c;:::::::::,_ - - _c;:::::::::,
Bum p er-to- bum per Bum per -to- bum per Se co nd ary r oads, tr ail er
tra ff ic, "keep ing pace" traff ic, "k eep ing pace" o perat ion
c omf ortabl y comfort ab ly
2 2 3
3 3 4
4 4
5
&, WARNING (co ntinued )
slow your vehicle safely . If closing speed is too high, you must
apply the brakes yourself to reduce the risk of a rear-end cra sh .
• Always select a greater following distance to the vehicle ahead
on wet roads than on dry roads.
• Always read and heed the information and WARNINGS=>
& in
" Description " on
page 119.
[I) Tips
Th e d istance sett ing is reset to the facto ry defau lt DISTANCE 3 the
next time the ignition is turned on .•

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• .::::::,,,,,.::::::, Driving in traffic: The indicator light .::::::,11 .. .::::::, shows that a
veh icle moving in yo ur lane of tr ave l has been de te cte d up fron t in
your lane o f travel. Your speed is adjusted accord ing to the speed of
the vehicle up front. ACC accelerates and brakes automatically within
the system's capabilit ies.
• .::::::,,,,,.::::::, Driver intervention prompt : The red flashing w arning
light
.::::::,11 .. .::::::, means Request for driver to as sume control. You as the
driver must slow the vehicle with the foot brake . The symbo l
.::::::,11 .. .::::::,
tells you that the Adapt ive C ruise Contro l is not able to slow the
vehicle down eno ugh to keep a enough distance to the vehicle in front
of you. A warning to ne w ill a lso sound when the symbol appea rs . For
more info rmation about t he dr iver inte rvention prompt~
page 130.
& WARNING
Improper use of the Adaptive Cruise Control feature s and inatten­
tion can lead to an crash and serious personal injury.
• Never allow the closing speed between you and other vehicles
to be so high that the Adaptive Cruise Control may not be able to slow your vehicle safely . If closing speed is too high , you must
apply the brakes yourself to reduce the ri sk of a rear-end crash .
• Always sele ct a greater following dis tance to the vehicle up
ahead on w et roads than on dry road s.
• Always read and heed the information and WARNINGS ~
& in
" Description " on
page 119.
[ i ] Tips
• If you use the accelerator to go faster tha n the speed of the
vehicle ahead of yo u, the drive r intervention prompt will not be
accompanied by a warning to ne.
• If the spee d you previously set is ex ceeded, t he i nd ic ato r light in
the speedometer will sw itch off .•
A pp lies to veh ic les: with Adapt ive Cru ise C ontrol
Display in the instrument cluster
Fig . 116 Di splay in
the instrum ent cluster
Scr oll throug h the available information displays by br iefly tapping
the
I RESE T) button at the end of the windshield w iper leve r. Yo u can
select info rmation from the tr ip comp uter, naviga tion system * or
Adaptive Cr uise Contro l.
© Vehicle symbol
® Distance
© Status
© Vehicle symbol
The ve hicle symbol indi ca tes whether the system h as de te cted an
object trave ling in front.
• Vehicle outline : Open road, no vehicle ahea d.
• White ve hicle: A vehicle is detected ahead.
• Red vehicl e: Request for dr iver to assume control.
® Distance
Us ing the a rrows and scale , you can det ect how fa r it is to the v ehi cle
in front of you.
• Open road : No arrow appea rs when the veh icle is on a n open ro ad
and there is no ve hicle ahead. .,,_

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• Driving in traffic: If a vehicle is detected ahead, the arrow moves
on the scale. The green area represents the distance set. When
approaching slowly, the arrow moves from the
gray zone to the green
zone on the scale.
• Driver intervention prompt: When approach ing rapidly, the
arrow serves as an early warning signal. If the distance se lected is
exceeded or possibly not reached, the arrow moves into the
red zone
on the scale. In certain driving situations, you as the driver will have
to take action=>
page 130, "Driver intervent ion prompt".
© Status
• Th e text ACC OFF appears in white letters when Adaptive Cruise
Control is turned off.
• The text
ACC AVAILABLE appears in wh ite letters when the
system is turned on but no desired speed has been set.
• The text
OVERRIDE appears in white letters when you exceed the
desired speed by accelerating .
• The text
DISTANCE! appears in red letters when the interval to a
vehicle traveling ahead is too short and you have to slow your vehicle
add itionally with the foot brake.
• Th e text messages
DISTANCE 1 to DISTANCE 4 appea r in green
letters to indicate the time interval you have set and Adaptive Cruise
Control is in management mode .
• If the driving program "standard" is replaced by "comfort" or
" dynamic" using the MMI, the above text message is supplemented
by an appropriate prompt, e.g.
DISTANCE 1 -dyn . . •
Controls and equip ­
ment Safety first
App
lies to vehicles : with Adaptive Cr uise Control
System status indicator
The text messages and symbols shown in this area of the
display are not displayed permanently.
Time intervals (such as c::::, ____ c::::,)
Fig. 117 System
status indicato r
The different symbols for the time intervals (distance) appear if you
change the settings=> fig . 117.
Thr ee wh ite dots ... appear if a setting cannot be made with the oper ­
ating lever . The following are possible reasons
• If you pull the control lever towards you to resume speed but no
requested speed was set.
• If you push the lever up to increase (or down to reduce) speed
when no speed has been set previously.
• If yo u push the lever up to increase (or down to reduce) speed and
this speed is outside the 20 to 95 mph (30 to 150 km/h) speed range.
ACC functionality Limited
The message ACC functional ity limited appears when the ACC
System does not detect any moving vehicles up ahead in your lane of
travel for a longer period of time. During this time, the distance to
moving veh icles in your lane of travel up ahead is not being main­
tained . The ACC system is not sw itched off, and increased attent ion .,,
Vehicle care Technical data

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to the traffic situation is absolutely necessary. The following may be
reasons why the message
ACC functionality limited appears:
• The ACC sensor is dirty . The ACC system is not reacting, or is not
reacting correctly, to moving vehicles up ahead in your lane of travel.
• There may be very light traffic on and there is nothing that marks
the side of the road (for example, guard rails, traffic signs, trees) . As
soon as a moving vehicle up ahead is detected aga in, ACC becomes
active again and the message disappears.
Th e ACC sensor is located in the area under the front license plate.
If
the ACC sensor is dirty or blocked, clean the area to restore system
operat ion.
ACC not available
The text message ACC not available appears, for example, if the
temperature of the brakes is excessive. Adaptive Cruise Control is
temporarily not available. A warning tone sounds as a reminder.
ACC not available!
The text message ACC not available! appears in the event of a
malfunction. Adaptive Cruise Control is turned off. A warn ing tone
so unds as a reminder. Have the system inspected by a qualified deal­
ership.
ACC sensor blocked !
The text message ACC sensor blocked! appears when the ACC System
can no longer accurately detect vehicles moving up ahead in your lane
of travel. Adaptive Cruise Control is turned off. A warning tone also
so unds as a reminder.
To decide whether it is necessary to switch off the ACC (ACC sensor
blocked
!) or if it is only a temporary condition (ACC Functiona lly
limited), the system w ill also takes into consideration the outside
temperature and/or the windshield wiper operation .
Th e ACC sensor is dirty or blocked (e.g. leaves, snow) . The ACC sensor is located in the area under the front
license plate. If
the ACC sensor is dirty or bloc ked, clean the area to restore system
operation .
EPB activation
The text message EPB activation appears if emergency braking was
man ua lly initiated with the Electromechanical Parking Brake (EPB).
The Adaptive Cruise Control is turned off . Th is is accompanied by a
wa rning tone.
Speed
The set speed in mph (Canada km/h) always appears when saving or
changing the speed in Adaptive Cruise Control=:>
page 122, "How is
the speed stored?" and=:>
page 123, "Changing stored speed".
Selector lever position!
The text message Selector lever position! appears when the selecto r
lever is moved to position
N . In this position, Adaptive Cruise Control
is not available. •
Applies to vehicles: wit h Adapt ive Cruise Contro l
Driver intervention prompt
The driver intervention prompt calls on the driver to take
over the situation.
Fig. 118 I nstrument
cluster: Dr iver inter -
v ent ion prompt
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