
_________________________________________________ O_ n_t_ h _ e_ ro_ a_d  __ ffl'II 
The  display=> page 116, fig. 106  will  show  the  set  speed.  The  display 
may  vary  depending  on  the  type  of  display  in  your  vehicle. T he  indi
cator  light 
CRUISE (US model) I c-f (Canadian  model)  w ill also  light  up 
in the  instrument  cluster. 
The  speed  is  kept  constant  via  an engine  output  adjustment  or  active 
brake  intervention. 
_& WARNING 
•  Always  pay attention  to  traffic even  when  the  cruise control  is 
switched  on.  You are always  responsible  for your  speed and the 
distance  between  your vehicle and  other vehicles. 
•  For  safety  reasons,  the  cruise control  should not  be used in the 
city,  in stop-and-go  traffic,  on  twisting  roads  and when  road 
conditions  are poor  (such  as ice, fog,  gravel,  heavy  rain  and hydro
planing ) - risk of  accident. 
•  Turn off  the  cruise control  temporarily  when entering  turn 
lanes, highway  exit lanes or in construction  zones. 
• Please  note  that  inadvertently  "resting"  your foot  on the  accel
erator  pedal  causes  the  cruise control  not  to  brake . This  is because 
the  cruise  control  is overridden  by the  driver's acceleration . 
(I] Tips 
The  brake  lights  illuminate  as  soon  as  the  brakes  decelerate 
automatically . • 
A ppli es  to  ve hicles : w it h  cr uise  contro l 
Changing  speed 
- Press  lever  in the  G)orQ direction ==> page 116, fig.  105 
to  increase  or  decrease  your  speed. 
- Release  the lever  to  save  that  speed. 
Controls  and  equip 
ment  Safety  first 
Change  speed 
in increments  of  1 mph (1 km/h)  by lightly  pressing  the 
lever.  If you  keep  the  lever  pressed  down,  yo u will  alter  your speed  in 
5  mph  (10  km/h)  increments. 
You can  also  press  the  accelerator  pedal  down  to  increase  your  speed,  e .g . if  you  want  to pass  someone.  The  speed  you  saved earlier  wi ll 
resume  as  soon  as  you  release  the  accelerator  pedal. 
If,  however,  you  exceed  yo ur saved  speed  by 5  mph  (10 km/h)  for 
longer  than  S  m inutes,  the cruise  control  will  turn  off  temporarily. 
The  symbol  will  go out  but  the  saved  speed  will  be  retained .• 
App lies  to  ve hicle s: w it h  cr uise  c ontro l 
Presetting  your  speed 
You can  preset  your  desired speed while  the  vehicle is not 
moving. 
- Turn  on  the  ignition. 
- Pull  lever  into position 
(i) ==> page 116, fig.  105 . 
- Press  the lever  in the 
0 or 0 direction  to increase  or 
decrease  your  speed. 
- Release  the lever  to  save  that  speed. 
This function  makes  it  possible,  for example,  to save  the  speed  yo u 
want  before  driving  on  the  highway. Once  on  the  highway,  act ivate 
the  cruise  contro l by  pulling  the  lever toward 
(D. • 
A pp lies  to  ve hicles : wit h  cr uise  c ontro l 
Switching  the  system  off 
Temporary  deactivation 
- Press  the  brake pedal,  or 
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  

Adaptive  Cruise  Control  -
----------------
App lies to  vehicl es: wi th Adaptive  Cru ise  Con trol 
How  is  the  distance  (time  interval)  set? 
Distance  con  be set  in four  stages. 
Incre as ing  dist anc e 
Fig . 113  Contro l 
l ever : Sett ing distance 
- Push  the  slider  switch on ce to  the  r ight 0 ==>  fig . 113 . The 
distance  currently  set  is shown  for  3 seconds  in the  instru 
ment  cluster  display. 
- Push  the  slider  switch 
again to  the  rightG)to increase  the 
distance  by one  step. 
Symbol 
Dynam ics 
Distance at  25  mph  (40  km /h ) 
Di sta n ce at  50 
mph  (80  km /h ) 
Distance at  75  mph  (120  km /h) 
Controls  and  equip 
ment  Safety  first 
DISTANCE  1 
c::::, 
_ c::::, _ - -
1 second 
Sporting 
36  Feet ( 11 Meters) 
_ ... 
72  Feet  (22  Meters) 
108  Feet (33  Meters) 
R educing  di stance 
Push  the  slider  switch onc e to  the  left Q. The  d istance 
currently  set  is shown  for  3  seconds  in the  instrument 
cluster  display. 
Push  the  slider  switch 
again to  the  left  Oto  decrease  the 
distance  by one  step. 
Th e d istance at wh ic h  the  Adaptive  Cruise Control  fo llows a vehicle  in 
front  is determined  by 
time intervals.  A time  interval  to  a vehicle  in 
front  is established  and  maintained.  This produces  a speed-depen
dent  interval.  The higher  the  speed, the  greater  the  safety  interval  in 
feet  (meters) 
=> & . 
For  example,  if  the  interval DI STA NCE  3 is set,  a vehicle  in  front  is 
followed  at  a time  interval of  1.8  seconds. 
For a speed of  50  mph  (80  km /h )  this  would  be equ ivalent  to a 
distance  of  131  feet (40  m ete rs)  to  the  veh icle in front . 
T he distances  giv en here are nominal  va lues. The vehicle  speed  may 
exceed o r fall  short  of  these  target  speeds , depending  on the  driving 
situation  and the  d riving  style  of  the  vehicle  ahead . 
DISTANCE  2 
~-- c::::, _ -
1.3  seconds 
Standard 
95  Feet  (29  Meters) 
144  Feet (44  Meters) 
DISTANCE  3 
~ ___  c::::,_ 
1.8  seconds 
Standard 
66  Feet (20  Meters) 
131  Feet (40  Meters) 
197  Feet (60  Meters) 
DISTANCE  4 
c::::,_  -- _c::::, 
2.3  seconds 
Comfortable 
82  Feet (25  Meters) 
16 7  F eet  (51  Me ters) 
249  Feet (76  Meters) 
~ 
Vehicle care  Technical  data  

__________________________________________ A_ d_a""" p:....- t_iv _ e_ C_ r_ u _is _ e_C_ o_n_ t_ r_ o_ L_....Jfflll 
Driver  information 
Applies  to  veh icles:  with  Adaptive C ruise  Cont ro l 
Displays  in  the  instrument  cluster 
Depending  on the  driving situation,  driver information  is 
displayed  in the  instrument  cluster . 
@ Speedometer  and  indicator  light  display 
@  Display  in the  instrument  cluster 
Fig.  114  O vervi ew 
in strume nt  clu ster 
@ Speedomet er  and  indicator  light  display 
Important  information  concerning  vehicle  operation  with  Adaptive 
Cru ise  Control  is shown  in display  area @. T he  desired  speed  you  set 
is  indicated  in the  speedometer  (L ED lights  around  the  edge). 
Th e  ind ic ator  lig hts  show  whether  the  sys tem  has  detec ted  a ve hicle 
traveling  ahead. 
@ Display  in  the  instrument  cluster 
In  d isp lay  area @ information  from  the  navigation  system * and  the 
t rip  compu ter  is displayed  in a ddition  to  info rmation  abou t Ad apt ive 
Cru ise  Control. 
You can  select  among  the  different  information  by repeated  b rief 
taps  on the 
I RESE T! but ton on the  windshield  w iper  lever~ page 35, 
"Operation" . 
Contro ls a nd e quip 
m en t  Vehicle 
OP-eration 
Certain pieces  of in format ion in the  bottom  part  of the  display  are  not 
show n perm anent ly . In fo rmat ion  is  dis played  on ly if you  set  or 
change  the  speed  setting,  change  the  t ime  interval,  when  messages 
are  displayed  or  if the  Adaptive  Cr uise  Control  is tu rned  off  for  safety 
reasons .• 
App lies  to  v ehicle s: with  Adaptive  C ru ise  Cont rol 
Display  in  the  speedometer 
Desired  speed 
Fig. 1 15  Di spl ay in 
th e  sp eedometer 
The  des ired  speed  set  by the  driver  is displayed  by  a red  LED. 
If  the  desired  speed  was  set  between  two  lines  o n the  speedometer 
using  the 
[ SET ! button,  the  two  closes t light  em itting  diodes  will 
come  on~ fig. 115 . 
The  system  allows  on ly speeds  to  be  set  between  20  to  95  mph  (30 
to  150  km/h)  to  be  set.  This speed  range  is fa int ly ill umina ted  in  the 
speedometer  (L ED  lights) . 
Indicator  lights  (symbols) 
• ""~  Open  ro ad: The  indicator  light 11 "~ shows  that  ACC is active 
and  that  no  moving  veh icle  has  been  detected  with  in  range  of the 
radar  sensor  up  ahead  in your  lane  of travel.  The  set  speed  is main-
tained.  .,,_ 
Vehicle  care  Do-it-yourselt  service iTechnical data  

1111....__A_ d_ a_,_ p_t _i_ v _e _ C_r_ u_ i_ s_ e_ C_ o_ n_ t_ r_ o_ l __________________________________________  _ 
• .::::::,,,,,.::::::,  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.  .,,_  

__________________________________________ A_ d_ a_,_ p_t _iv _ e_C_ r_u _i _ s _e _C_ o_n_ t_ r_ o_ l __  _ 
• 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  

Adaptive  Cruise  Control -
----------------
In certain  situations,  the  braking  power  of  the  Adaptive Cruise 
Control  is not  enough to  maintain  an  adequate  distance  to  the  vehicle 
up  ahead.  In  these  situations,  the  Adaptive  Cruise  Control  calls  the 
driver  to  take action. 
The 
driver intervention  prompt alerts you visually  and  audibly  to  take 
over. 
•  A red  vehicle  is shown  in the  instru ment  cluster  display 
=> 
page 130, fig.  118. 
•  Th e text 
DISTANCE! appears  in the  status  line. 
•  The  indicator  light 
c:::>uuc:::> in the  speedometer  blinks  red. 
•  A warning  tone  sounds . 
[I) Tips 
• If the  Adaptive  cruise  control  initiates  braking,  the  hydraulic  brake 
system  is under  pressure . Therefore,  the  brake pedal  distance  is 
shorter  and  the  pedal  "feels" harder . 
•  Adaptive  Cruise  Control  is switched 
off after  pressing  the  foot
brake.  The speed  saved  up  this  point  can  be  resumed. 
•  To  resume  the  saved speed,  release  the  brake  pedal  and  press  the 
control  lever=> 
page 124, "Turning  Adaptive  Cruise  Control off 
temporarily". 
• If you  use  the  accelerator  to go  faster  than  the  speed  of  the 
vehicle  ahead  of  you,  the 
driver  intervention prompt will not be 
accompanied  by a warn ing  s ignal. 
•  If the  speed  you  previously set  is exceeded,  the  indicator  light  in 
the  speedometer  will  switch 
off .• 
Controls  and  equip 
ment  Safety  first 
A
pp lies  to vehicles : w ith  Ad apt ive Cr uise  Cont rol 
MMI  settings 
Individual  settings for Adaptive  Cruise Control  can be 
selected  in the MMI. 
Settings  for  the Driving  program can be  adjusted  individually 
to  the  particular  user and saved  in  the  MMI.  This  can only  be 
done  with  the  engine  running. 
- Select:  Function  button 
[CAR]> Systems*>  adaptive 
cruise control  > Driving  program . 
Setting the  driving  program 
In  the Driving program menu  you  can  adjust  the  character istics  of 
Adaptive  Cruise  Contro l to  your  own  preferences  using 
Dynamic , 
Standard  or Comfort. 
Saving settings 
Your individual  settings are  automatically  saved  and  assigned  to  the 
remote  control  key being  used  (remote  key storage).  If  the  key  is 
given  to another  person, the  saved  settings  rema in as  they  are.• 
System  limitations 
A pp lies  to  ve hicle s: with  Ad apti ve  Crui se Con tro l 
General  information 
The  radar  sensor  has  limits that  the  driver must  know  to 
be  able  to  use  ACC properly. 
The  Adaptive  Cruise  Control  works  within  limits that  are  also  related 
to  radar  sensor  range  and  sight distance. In some  situations  ACC may 
reac t unusually  or  late  from  the  driver's  poin t of  view . Therefore, 
always  be attentive  to what  is happen ing  around  you  and  a lways  be 
ready  to  intervene,  if  necessary: 
•  when  driving  around  curves=> 
page 132 
Vehicle  care  Technical data  

Audi  lane  assist -________________  lff'II 
Not ready:  The yellow  indicator  light  shows  that  the  system  is 
turned  on  but  unable  to  send  a  warning. This can be due  to  the 
following: 
•  Th ere  are  no  boundary  lines,  or  there  is only  one  boundary  line 
present. 
•  The  boundary  lines  are not detected  (e .g . due  to  snow,  dirt,  wet 
conditions  or  light  shining  into  the  camera  lens). 
•  More  than two  boundary  lines  (such  as  at construction  sites) are 
located  in  the vehicle's  lane. 
•  Th e vehicle's  speed  is below  the  speed  needed  to  activate  it, which 
is about  40  mph  (65  km/h) . 
•  Th e  lane  is narrowe r than  about  8 
ft. (2.5 m),  or  wider than  about 
16 ft. (5 m). 
•  The  curve  is too  sharp. 
Notes  on  the  instrument  cluster  display 
When  the  lane  assist  turns  off  automatically,  the instrument  cluster 
indicator  goes out  and  one  of  the  fo llowing  messages  appears  on the 
display: 
Audi  lane  assist not  available:  currently  no  sensor  vision 
Thi s message  appears  when  the camera  can  no  longer  function 
because  it  cannot  detect  the  boundary  lines.  This  may  be  due  to  the 
following: 
•  Th e  exte rior  side  of  the  camera  viewing  window=> 
page 134, 
fig.  127  is covered  with  dirt  or  ice.  Clean  this  part  of  the  windsh ield. 
•  Th e  came ra viewing  window  is fogged  up  on  the  inside.  In  this 
case,  wait  until  the  fog  disappears before  turning  lane  assist  on 
again. 
•  Th e system  was  unable to  detect  boundary  lines  over  an  extended 
period  of  time  due  to  road  conditions  (such as snow-cove red  lanes). 
Do not  turn  lane  assist  on  aga in until  the  lines can  be  more  easily 
detected. 
Audi  lane  assist  currently not  available 
Controls  and  equip 
ment  Safety  first  A temporary  malfunction 
is preventing  lane  assist  from  operating . 
Tr y turning  on  lane assist  again  at  a lat er time. 
Audi  lane  assist:  system fault 
The  system  shou ld be  checked  by an  authorized  Audi  dealer or  other 
qualified  wo rkshop. 
[ i ] Tips 
•  Make  sure  that the  camera  viewing  window => page 134, fig. 127 
is  not  covered  by stickers  or  similar  objects. 
•  Always  keep the camera  viewing  w indow  clean.  This can  us ually be 
done  by operating  the  windshie ld wipers. • 
Applies to  vehicles: wi th lane  assist 
MMI  settings 
You can  use  the fv1fv1I to adjust  the  warning time  and 
steering  wheel  vibration. 
-Select:  Function  button [CAR ]> Systems *> Audi  lane 
assist. 
Setting  the  warning time 
Early: This  setting  warns  the  driver  before  a wheel  touches  the 
detected  lane  boundary  line. The  warning  depends  on  the  vehicle's 
angle  as  it  approaches  the  boundary line.  If you  approach  a  boundary 
line  gradually,  the  warn ing  will  occur  earlier.  If  you  approach  the 
boundary  line  at  a  very sha rp angle,  the warn ing will occur  just befo re 
a wheel  touches  the  line. 
Medium : In  this  setting,  the  warning  time  adjusts  to  the  characteris
tics  of the  road  and  the vehicle  speed.  The wa rning  occurs  later  fo r 
curves  and  occurs  earlier  for  straight  stretches  of  road . The  warning 
occurs  later  on  narrow roads  than  on  wide ro ads. 
Late : This setting  warns  the  driver  when  a wheel  dr ives  over  the 
detected  lane boundary  line. 
Vehicle  care  Technical  data