2017 AUDI A8 warning

Assist Interrupting cruise control
Applies to: vehicles with Audi adaptive cruise contro l
Fig. 110 Selector leve r
Requirement: adaptive cruise control mus t be
sw itched on .
Overriding cruise control
• To accelerate manually , pull the lever toward
you into position @and hold it there . T he mes­
sage
ACC: override appears . Or
• press the accelera tor pedal.
• To resume cruise control , release the lever or
take your foot off the accelerator pedal.
Canceling cruise control while driving
• Move the lever into position @. The message
ACC: standby appears . Or
• press the brake pedal.
• To resume the stored speed, move the lever in ­
to posit ion @.
Canceling cruise control when stopped
• Push the lever away from you into position @.
The message
ACC : standby appears.
• To resume cruise control, press the brake pedal
and pull the lever toward you into position @.
.&, WARNING
It is dangerous to activate cruise control and
resume the stored speed when the current
road, traffic or weather conditions do not per­
mit this. This increases the risk of an accident.
98
Setting the distance
Applies to: vehicles with Audi adaptive cruise control
Fig. 111 Ope rating leve r: sett ing th e dis tan ce
• Tap the switch to display the current set dis­
tance
¢ fig . 111 .
• To increase or reduce the distance in incre­
ments, tap the switch again to the right or left .
The distance between the two veh icles will
change in the instrument cluster display .
When approaching an object ahead, the adaptive
cruise contro l system brakes to match that speed
and then adjusts to the set distance.
If the object
ahead accelerates, adaptive cruise control will al­
so accelerate up to the stored speed .
The higher the speed, the greater the distance
¢ ,&. .The
Distance 3 setting is recommended .
That is equal to the general recommendation of
"half the speed shown on the speedometer".
The distances provided are spec ified values . De ­
pending on the driving situation and the way the
object ahead is dr iving, the actual distance may
be more or less than these target distances .
The var ious symbo ls for the time increments ap­
pears briefly in the information line @
¢
page 96 , fig . 108 when you change the set­
tings .
c::::,_c::::, ___ Distance 1 : this setting corresponds
to a distance of 92 ft (28 m) when traveling at 62
mph (100 km/h), for example (time between: 1
second) .
c::::, __ c::::, __ Distance 2: this setting cor responds
to a distance of 118 ft (36 m) when traveling at
62 mph (100 km/h) , for example (time between:
1.3 seconds) . ""

C) C0 ....
"' " "' .... 0 0 :r ~-- -~ -Di st a nce 3: this setting corresponds
to a distance of 164
ft (SO m) when traveling at
62 mph (100 km/h), for examp le (time between :
1.8 seconds).
~-- --~ Dist a nce 4: This setting corresponds
to a distance of 210
ft (64 m) when traveling at
62 mph (100 km/h), (time distance of 2.3 sec­
onds).
A WARNING
Following other vehicles too closely increases
the risk of coll isions and ser ious personal in ­
jury.
- Setting short distances to the traffic ahead
reduces the t ime and distance available to
br ing your vehicle to a safe stop and makes
it even mo re necessary to pay close atten­
t ion to traffic.
- Always obey applicable traffic laws, use
good j udgment, and select a safe following
distance for the traffic, road and weather
condit ions .
@ Tips
- Di stance 3
is set automatically each time
you switch the ignition on.
- Your settings are automatically stored and
assigned to the remote control key being
used.
Selecting the driving mode
A pp lies to: ve hicles with Audi adaptive cruise co ntrol
.,. Se lect the des ired driving mode in dr ive se lect
c> page 110 .
@ Tips
Your se ttings a re au toma tical ly s to red and as­
signed to the remote control key being used.
A ss ist
Driver intervention request
App lies to : vehicles wit h Aud i ada ptive cr uise control
Fig. 112 Instrume nt cl uster : request fo r drive r in terven ­
tio n
In certain situa tions, the system will request you
to take action:
- if the braking from the adap tive cruise contro l
system is not enough to ma intain eno ugh dis­
t ance to the object ahead.
The da nger is indicated by the. indicator light
r:!> fig . 112. An audio signal will a lso sound .
- Press the brake pedal to slow your vehicle
down.
Audi braking guard
Appl ies to: vehicles wit h Audi ada ptive cr uise control
Fig. 113 Instrument cluster : approach wa rnin g
The braking guard uses radar sensors and a v ideo
camera. It also functions within the limits of the
system when adaptive cru ise control is switched
off .
Wh at can the b raking guard do?
When detected in time, the system can assess
dangerous situations where an object ahead
brakes suddenly or if your own vehicle is traveling .,..
99

Ass is t
at a high speed and approaching an object that is
moving more slowly. The braking guard does not
react if it cannot detect the s ituation.
The sys tem advises you of various dangerous si t­
uations :
- T he
distan ce warning occurs if you drive too
closely to t he object ahead for a long period of
time . If the ob je ct ahead b rakes strongly, you
would not be able to avoid a collis ion . The .
indicator light appears as an indication for this.
- T he
app roach wa rning occurs when an object
ahead is traveling more slow ly or brakes
strongly . When this warning occurs, it may on ly
be possib le to avoid a co llision by swerv ing or
braking strong ly. The danger is indicated by the
• indicator light
c> fig. 113. An audio signal
will also sound.
If you do not react early enough or at a ll to a dan­
gerous situation, the braking guard supports you
with a brak ing intervention. The approach warn­
ing indicators and the message
Braking guard :
e n gaged
also appear .
- If a collision is imminent, the system will first
provide an
ac ute wa rni ng by braking sharply.
- If you do not react to the acute warning, the braking guard can increase the braking force
within the limits of the system. This reduces
the vehicle speed in the event of a co llision.
- The system can init iate comp lete deceleration
sho rtly before a collision
ll . Full decele ration at
high speeds occurs only in vehicles with adap­
tive cru ise cont rol and s ide assist (pre sense
pl us).
- If the braking guard determines that you are
not brak ing strongly enough when there is an
impending co llision, it can increase the bra king
f o rce .
- T he pre se nse functions also engage when
the re is an impend ing collision
c:> page 216.
Which functions can be controll ed ?
You can switch the braking guard and the dis ­
tance/approach warn ing on or off in the lnfotain-
l ) Ma rket -spe cific
100
ment system c:> page 101, Settings in the Info­
tainment system.
A WARNING
Lack of attent ion can cause collisions, other
accidents and ser ious personal inju ries. The
braking guard is an assist system and cannot
p revent a collision by itself . The driver must
a lways inte rvene . The driver is always respon­
sib le for braking at the co rrect t ime .
- Always pay close attention to traffic, even when the b raking guard is sw itched on. Be
ready to intervene and be ready to take
comp lete contro l whenever ne cessa ry . Al­
ways keep the sa fe and legal dist ance be­
t ween your vehi cle and veh icles up ahead .
- Br ak ing g uard works w ithin limits and will
no t respond o utside the system limits, for
examp le when approaching a stopped vehi ­
cle or stationary obstacle (en d of a traffic
jam or vehicle that has broken down in traf­
fic).
- Always remember that the radar sensor for
the brak ing g uard works only within def ined
detection and range limits that may prevent
the prope r detection o f other vehicles.
- The radar sensor 's function and range can
be reduced by rain, snow and heavy spray.
Moving vehicles up ahead may not be
promptly detected or may not be detected
at al l.
- Reflective surfaces including crash barr iers
or tunnel entrances may impair the function
of the radar sensor.
(D Tips
- You can cancel the braking with increas ing
force that is initiated by the system by bra k­
ing yourself, by acce le ra ting not iceably or
by swerving.
- Keep in mind that braking gua rd can brake
unexpectedly. Always secure any cargo or
objects tha t you are transpo rting to redu ce
t h e risk of damage or injury.

0 co .... N ,..._
N .... 0 0 :c ' Settings in the Infotainment system
Applies to: vehicles with Audi adaptive cruise contro l
.,. Se lect: t he I CAR I fu nction bu tton > Car systems
co ntro l bu tton > Driver a ssist > Audi braking
guard .
System -
Switch the bra kin g g ua rd On/ Off. When
you swit ch the ig nition on, the message
Braking
guard: Off
appears if t he sys tem is switched o ff.
Early warning -The distance and approac h warn­
i ngs i n the display can be sw itched
On/ Off.
@ Tips
- Your settings are automatically stored and
ass igned to the remote cont rol key bei ng
used.
- If you restric t or sw itch off the ESC, the
braking gua rd also sw itches itself off
¢ page 12 7.
- Switch braking guard off when yo u are load­
i ng t he ve hicle on to a vehicle ca rr ier, t rain,
shi p or other type o f transportation. This
c a n p reven t undesired w arnings from the
br akin g guard system.
Messages
Applies to: veh icles with Audi adaptive cruise control
Braking guard: Off
This message appea rs if the sys tem is switc hed
off through the In fota inme nt system . Otherwise ,
if the system is tur ned off, the informa tion ap ­
pears every time shortly after the start of t he
tr ip.
The message also appears if the system is not
avai la bl e d ue to a ma lfunction or if the ESC is
switched off~
page 127. If this is the case, the
system w ill not prov ide warnings about a possi ­
b le co llision.
Braking guard : engaged
This message appea rs if a sha rp bra ke press ure
was applied due to an ac ute wa rn ing.
ACC: unavailable
ACC and Audi braking guard: Unavailable Assist
T
he system cannot gua rantee that it will detect
objects co rrectly and is sw itched off . The sensors
have been moved or are faulty. The p re sense
funct ions may a lso be affected . D rive to an au­
t h ori zed Audi dea ler or authorized Audi Service
Facility immed iate ly to have the malfunction cor ­
rected .
ACC: Currently unavailable. No sensor vis ion
ACC and Audi braking guard: Cu rrently unavail­
able. No sensor vision
Th is mess age appears if the senso r view i s ob ­
str ucted, for examp le by leaves, snow , heavy
spray or dirt. Clean the sensors¢
page 94 ,
fig . 104.
ACC : Currently unavailabl e. Gradient too steep
The road exceeds the maximum poss ible angle
fo r safe adaptive c ruise cont rol operat io n. Adap­
t ive cr uise control is sw itched off.
ACC: only available in D, Sor M
Se lect the D, Sor M selector leve r pos ition.
ACC : Currently unavailable. Parking brake ap •
plied
The ad apt ive cr uise cont rol system sw itches off
a utoma tica lly if the parking brake is se t.
ACC: Currently unavailable . Stability control
( ESC) input .
This message appears if the Electronic Stab iliza­
t ion Control (ESC) is taking action to stab ilize the
vehicle . In t his case, adaptive cruise control
switches off automatically .
ACC off: manual control!
This message appears when adaptive cruise con­
trol cannot set the parking brake. P ress the brake
pedal to prevent the vehicle from ro lling.
• ••
T h ree white do ts appear if a setting canno t be se­
l ecte d w it h t he oper ati ng leve r. For ex ample, this
h appens if a daptive cr uise con trol c annot sta rt
driv ing a utomat ica lly in stop -and -go traff ic be ­
ca use the dr iver has not fastene d their safety
belt . ..,.
101

Ass is t
D oor open
The adaptive c ruise contro l system cannot sw itch
on when a door is open.
Stat ionar y obj ect ah ead
This message appears if you would like to switch
adapt ive cruise control on and there is a station­
ary object or obstacle directly ahead of your vehi­
cle .
Audi active Lane assist
(Lane departure assist)
Description
A ppl ies to: ve hicles w ith Audi active lane assist
Active lane ass ist detects lane marker lines with­
in the l imits of the system us ing a camera in the
windshie ld. If you are approaching a detected
lane marker line and it appears likely t hat you
will leave the lane , the system will warn you with
correct ive steering . You can override t his steer ing
at any time. If you pass over a line, the steering
wheel will vibrate lightly . In order for this warn­
ing vibration to occur, it must first be sw itched
on in the Infotainment system. Act ive lane assist
is ready for operation 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 h ighways and therefore only activates
at speeds above approximately 40 mph (65 km/
h) .
App lies to veh icles with side assist
If you activate a turn signa l when active lane as­
sist is ready and it class ifies a lane change as crit­
ical because of veh icles 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.
A pp lies to veh icles witho ut s ide ass ist
The system will not warn you before crossing a
lane marker line if you have activated the turn
signal. In this case, it assumes that you are
changing lanes intent io nally.
102
App lies to: vehicles wi th adap tive cruise contro l
The corrective steering is targeted based on the
driving situation. In addition to the lane marker
li nes, the system can also take into account other
ob jects such as guard rails. If they are detected in
close prox imity to the ve hicle, active lane assist
helps prevent the vehicle from dr iving too close
to them . There is also pass ing ass istance. The
system does not provide any corrective steering if
i t detects that you are pass ing anothe r vehicle.
.&_ WARNING
- The system warns the drive r that the vehicle
is leaving the lane us ing correct ive steering.
The drive r is always responsible for keeping
the vehicle within the lane.
- The system can assist the dr iver in keeping
the vehicle in the lane, but it does not drive
by itself. A lways keep your hands on the
steer ing whee l.
- 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 . Cor rec­
tive stee ring can only take place on the side
of the vehicle where lane marker lines are
detected.
- Other road structures or objects could poss i­
bly be identified un intent ionally as lane
marker lines. As a result, corrective steering
may be unexpected o r may not occ ur.
- The camera view can be restricted, for ex­
ample by vehicles driving ahead or by ra in,
snow, heavy spray or lig ht shining into the
camera. This can resul t in active lane ass ist
no t de tecting the lane marker lines or de­
tect ing them in co rrectly .
- Unde r ce rtain cond it ions su ch as r uts in the
ro ad, a ban ke d roadway or crosswin ds, the
corrective s teer ing alone may not be enough
to keep the vehicle in the m iddle of the lane.
- For safety reasons, a ct ive lane assis t must
no t be use d when there are poor road and/
or weather conditions such as slippery
roads, fog, gravel, heavy rain, snow and the potential for hydrop laning. Using active lane
assist under these cond it ions may increase
the r isk of a crash.

C)
Switching on/off
A ppl ies to: ve hicles with Audi active lane assist
Fig. 114 Turn s ig n al lever: button for active lane ass ist
F ig. 115 Windsh ield: camera window fo r ac tive lane assist
... Press the button to switch the system on and
off ¢
fig. 114 . The. or. indicator light in
the instrument cluster turns on o r off .
Indicator lights
• Ready:
the indicator light turns on when the
system is ready for use. The system can now be
operated .
., Not ready: the indicator light turns on if the
system is switched on but is inoperab le. Th is may
be due to the following reasons:
- The re is no lane marker line.
- T he relevan t lane marker lines are not detected
(for example, mark ings in a construction zone
or because they are obstructed by snow, dirt,
water or lighting).
- The vehicle speed is below the activation speed
of approx imately 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 stee ring
"' ,.... wheel.
"' ...... 0 0 :r Assist
(D Tips
Make sure the camera's field of view
¢
fig. 115 is not obstructed by stickers or any­
thing else. For information on clean ing, refer
to
¢ page 306.
Image in the instrument cluster display
App lies to: vehicles with Audi active la ne ass ist
Fig. 116 Instrument cluster: active lane ass ist is sw itc hed
on and providing warnings
Fig. 117 Instrument cluste r: act ive lane ass ist is sw itc hed
on b ut not ready to provide warnings
You can call up the active lane assist display us­
ing the b uttons in the mu ltifunction steering
wheel
¢page 12 .
White line(s)
Active lane assist is activated
and ready to provide warn ings.
Red line(s) Active lane assist warns you
(left or right) before leav ing a lane
¢fig . 116. In addition, the
steeri ng wheel vibrates lightly.
Gray line(s)
Active lane assist is activated,
but not ready to give warning
¢fig. 117.
103
...

Ass is t
Messag es in the instrument cluster display
If the active lane ass ist switches off automatica l­
ly, the indicator lig ht in the display turns off and
one of the following messages appears:
Audi acti ve lan e ass ist : Cur rently un availabl e.
No camera vie w
This message appears if the camera is unable to
detect the lines. This co uld happen if :
- The camera field of view
9page 103, fig . 115 is
dirty or cove red in ice . Clean this area on the
windshield .
- The camera field of v iew is fogged over . Wait
unt il the fog has cleared before sw itch ing the
active lane assist on again .
- The system has been unable to detect the lanes for an extended period of time d ue to road con­
ditions. Switch a ctive lane assist back on when
the lines are mo re visible .
Audi acti ve lan e ass ist : Cu rrently un available
There is a temporary active lane assist ma lf u nc­
tion . Try sw itching the act ive lane assist on aga in
later.
Audi active lane a ssist : System fault!
Dr ive to an a utho rized Aud i dea le r or a uthorized
Aud i Serv ice Facility immediately to have t he
malfunction corrected.
Audi active lane a ssist : Please take over steering
This message appea rs if you are not steering by
yourself . If th is is the case, active lane assist does
no t swi tch off, but it is "not ready" to provide a
warn ing . The system ca n he lp you keep the veh i­
cle in the lane. However, yo u are responsib le for
d riving the vehicle and must steer it yo ursel f.
Setting the vibration warning
Applies to: ve hicles with Audi active lane assist
.,. Se lect : the ICARI function button > Car systems
contro l button > Driver a ssist > Audi acti ve
lane ass ist .
V ibration warning
You can switch the additional vibration wa rni ng
in the steering wheel o n or off.
104
@ Tips
Your settings are automatically stored and as­
signed to the remote contro l key being used.
Audi side assist
Description
App lies to: vehicles with A udi side ass ist
Fi g. 118 Senso r detect ion ra nge
Fig. 119 D isp lay on t he exterio r mirr or
Side assist helps you monitor your blind spot and
traffic behind your vehicle. W ithin the limits of
the system, it warns you abo ut vehicles that are
coming closer or th at a re t raveling wit h you with­
i n senso r range @
9 fig. 118: if a lane c hange is
classified as cri tical, the disp lay @ in the exte rior
mirror
9 fig. 119 turns on .
The disp lay in the left exte rio r mirror prov ides as­
s ista nce when making a lane change to the left,
whi le the display in the r igh t exterior m irror pro ­
vides assistance w hen making a lane c hange to
the right.
Information stage
As long as you do not a ct iva te the t urn signal,
side ass ist informs you abou t vehi cles tha t are
detected a nd classified as c rit ical. The di splay in
the mirror turns on, but is dim. ""

C) C0 ....
"' " "' .... 0 0 :r The display remains dim in the information stage
so that your view toward the front is not distur ­
bed .
Warning stage
If the d isplay i n a m irror blinks br igh tly when yo u
activate a turn signal, side assist is warning you
about detected vehicles that it has classified as
cr itical. If this happens, check traffic by g lancing
in the exterior mirrors and over your shoulder
c::>
.& in General information on page 106.
Ap plies to vehicles with active lane assist
The display in the mirror can a lso b link if you
have not activated a turn signa l: if you are ap­
proaching a detected lane marker line and it ap ­
pears you w ill be leaving the lane, side assist will
warn you about detected vehicles that it has clas­ sified as critical.
@ Tips
- You can adjust the brightness of the display
i n the exte rior mirror @c::>page
107.
-Please refer to the instructions for towing a
trailer located in
c::>page 105.
General information
Appl ies to: ve hicles with Audi side assist
®
®
©
Fig. 120 D riving s ituations
A ss ist
f1ID
AUD I
Fig. 121 Rea r of the vehicle: pos it io n of the sensors
Side assist funct ions at speeds above approxi­
mately 19 mph (30 km/h) .
@ Vehicles that are approaching
N
N
~
:i: .. co
In certain cases, a vehicle will be classified as
critical for a lane change even if it is still some ­
what far away . The faster a vehicle approaches,
the sooner the display in the exterior m irror will
tu rn o n.
@ Vehicles traveling with you
Vehicles traveling with yo u are indicated in the
exter ior mirror if they are classified as cr itical for
a lane change . A ll vehicles detected by side assist
are ind icated by the t ime they ente r you r "blind
spot", at the lates t.
© Vehicles you are passing
If you s low ly pass a veh icle that s ide ass ist has
detected (the difference in speed between the
vehicle and you r vehicle is less than 9 mph (15
k m/h)), the display in the exte rior m irror turns
o n as soon as t he veh icle enters your b lind spot .
The display w ill not t urn on if you quickly pass a
vehicle that side ass ist has de tected (the differ­
ence in speed is greater than 9 mph (15 km/ h)).
Function al limitat ions
The radar sensors are designed to detect the left
and right ad jacent lanes when the road lanes are
t h e normal width. In some situations, the display
in the exterior m irror may turn on even though
t h e re is no veh icle located in the area tha t is criti­
ca l for a lane change . For ex ample :
- If the lanes are na rrow or if your are drivi ng on
the edge of you r lane. If th is is the case, the ..,.
105