
2394-5. Using the driving support systems
4
Driving
WARNING
●If the part of the windshield in front of the front camera is fogged up or cov-
ered with condensation, or ice, use the windshield defogger to  remove the
fog, condensation, or ice. ( P. 340, 347)
● If  water  droplets  cannot  be  properly  removed  from  the  area  of  t he  wind-
shield  in  front  of  the  front  camera  by  the  windshield  wipers,  replace  the
wiper insert or wiper blade.
● Do not attach window tint to the windshield.
● Replace the windshield if it is damaged or cracked. 
After replacing the windshield, the front camera must be recali brated. Con-
tact your Toyota dealer for details.
● Do not allow liquids to contact the front camera.
● Do not allow bright lights to shine into the front camera.
● Do not dirty or damage the front camera. 
When  cleaning  the  inside  of  the  windshield,  do  not  allow  glass  cleaner  to
contact the lens of the front camera. Also, do not touch the lens. 
If the lens is dirty or damaged, contact your Toyota dealer.
● Do not subject the front camera to a strong impact.
● Do  not  change  the  installation  position  or  direction  of  the  front  camera  or
remove it. 
● Do not disassemble the front camera.
● Do  not  modify  any  components  of  the  vehicle  around  the  front  ca mera
(inside rear view mirror, etc.) or ceiling.
● Do not attach any accessories to the hood, front grille or front bumper that
may obstruct the front camera. Contact your Toyota dealer for details.
● If a surfboard or other long object is to be mounted on the roo f, make sure
that it will not obstruct the front camera.
● Do not modify the headlights or other lights. 

2434-5. Using the driving support systems
4
Driving
●In  the  following  situations,  if  the  situation  has  changed  (or  the  vehicle  has
been  driven  for  some  time)  and  the  normal  operating  conditions  are
detected,  the  message  will  disappear  and  the  system  will  become   opera-
tional.
If the message does not disappear, contact your Toyota dealer.
• When  the  temperature  around  the  radar  sensor  is  outside  of  the  opera-tional  range,  such  as  when  the  vehicle  is  in  the  sun  or  in  an  e xtremely
cold environment
• When the front camera cannot detect objects in front of the ve hicle, such
as when driving in the dark, snow, or fog, or when bright lights are shining
into the front camera
• Depending  on  the  conditions  in  the  vicinity  of  the  vehicle,  th e  radar  may
judge  the  surrounding  environment  can  not  be  properly  recognize d.  In
that case, “Pre-Collision Syst em Unavailable” is displayed. 

2554-5. Using the driving support systems
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Driving
• When  driving  in  inclement  weather  such  as  heavy  rain,  fog,  snow  or  asandstorm
• When the vehicle is hit by water, snow, dust, etc., from a veh icle ahead
• When driving through steam or smoke
• When driving in  a place where the  surrounding brightness changes  sud- denly, such as at the entrance or exit of a tunnel
• When  a  very  bright  light,  such  as  the  sun  or  the  headlights  of  oncoming
traffic, shines directly into the front camera
• When  the  surrounding  area  is  dim,  such  as  at  dawn  or  dusk,  or  while  at
night or in a tunnel
• After the engine has started the vehicle has not been driven for a certain amount of time
• While  making  a  left/right  turn  and  for  a  few  seconds  after  mak ing  a  left/
right turn
• While driving on a curve and for a few seconds after driving o n a curve
• If your vehicle is skidding
• If the wheels are misaligned
• If a wiper blade is blocking the front camera
• The vehicle is wobbling.
• The vehicle is being driven at extremely high speeds.
• When driving on a hill 
• If the radar sensor or front camera is misaligned • When  a  vehicle  ahead  is  not  directly in front of your vehicle
• If  the  front  of  the  vehicle  is  raised  or lowered 

2604-5. Using the driving support systems
Press  the  LDA  switch  to  turn  the
LDA system on.
The  LDA  indicator  illuminates  and
a  message  is  displayed  on  the
multi-information display.
Press the LDA switch again to turn
the LDA system off.
When the LDA system is turned on
or off, operation of the LDA system
continues  in  the  same  condition
the next time the engine is started.
WARNING
■Preventing  LDA  system  malfunctions  and  operations  performed  by
mistake
● Do  not  modify  the  headlights  or  place  stickers,  etc.,  on  the  su rface  of  the
lights.
● Do  not  modify  the  suspension,  etc.  If  the  suspension,  etc.,  needs  to  be
replaced, contact your Toyota dealer.
● Do not install or place anything on the hood or grille. Also, d o not install a
grille guard (bull bars, kangaroo bar, etc.).
● If your windshield needs repairs, contact your Toyota dealer.
Turning LDA system on 

2634-5. Using the driving support systems
4
Driving
■Conditions in which function s may not operate properly
In  the  following  situations,  the  front  camera  may  not  detect  wh ite  (yellow)
lines and various functions may not operate normally.
● There  are  shadows  on  the  road  that  run  parallel  with,  or  cover,   the  white
(yellow) lines.
● The vehicle is driven in an area without white (yellow) lines,  such as in front
of a tollgate or checkpoint, or at an intersection, etc.
● The  white  (yellow)  lines  are  cracked,  “Botts’  dots”,  “Raised  pa vement
marker” or stones are present.
● The  white  (yellow)  lines  cannot  be  seen  or  are  difficult  to  see   due  to  sand,
etc.
● The vehicle is driven on a road surface that is wet due to rain , puddles, etc.
● The  traffic  lines  are  yellow  (which  may  be  more  difficult  to  re cognize  than
lines that are white).
● The white (yellow) lines cross over a curb, etc.
● The vehicle is driven on a bright surface, such as concrete.
● The vehicle is driven on a surface that is bright due to reflec ted light, etc.
● The  vehicle  is  driven  in  an  area  where  the  brightness  changes  s uddenly,
such as at the entrances and exits of tunnels, etc.
● Light  from  the  headlights  of  an  oncoming  vehicle,  the  sun,  etc. ,  enters  the
camera.
● The vehicle is driven where the road diverges, merges, etc.
● The vehicle is driven on a slope.
● The vehicle is driven on a road which tilts left or right, or a  winding road.
● The vehicle is driven on an unpaved or rough road.
● The vehicle is driven around a sharp curve.
● The traffic lane is excessively narrow or wide.
● The  vehicle  is  extremely  tilted  due  to  carrying  heavy  luggage  or  having
improper tire pressure.
● The distance to the preceding vehicle is extremely short.
● The  vehicle  is  moving  up  and  down  a  large  amount  due  to  road  co nditions
during driving (poor roads or road seams).
● The headlight lenses are dirty and emit a faint amount of light at night, or the
beam axis has deviated.
● The vehicle has just changed lanes or crossed an intersection. 

2694-5. Using the driving support systems
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Driving
Example of constant speed cruising
When there are no vehicles ahead
The  vehicle  travels  at  the  speed  set  by  the  driver. The  desired  vehicle-to-
vehicle  distance  can  also  be  set  by  operating  the  vehicle-to-ve hicle  dis-
tance switch.
Example of deceleration crui sing and follow-up cruising
When  a  preceding  vehicle  driving  slower  than  the  set  speed
appears
When a vehicle is detected running ahead of you, the system automatically
decelerates  your  vehicle.  When  a  greater  reduction  in  vehicle  s peed  is
necessary,  the  system  applies  the  brakes  (the  stop  lights  will  come  on  at
this time). The system will respond to changes in the speed of  the vehicle
ahead in order to maintain the vehicle-to-vehicle distance set by the driver.
Approach  warning  warns  you  when  the  system  cannot  decelerate  su ffi-
ciently to prevent your vehicle from closing in on the vehicle  ahead.
Example of acceleration 
When  there  are  no  longer  any  preceding  vehicles  driving  slower
than the set speed
The  system  accelerates  until  the  set  speed  is  reached.  The  syst em  then
returns to constant speed cruising.
1
2
3 

2904-5. Using the driving support systems
WARNING
■Cautions regarding the use of the system
There  is  a  limit  to  the  degree  of  recognition  accuracy  and  cont rol  perfor-
mance that this system can provide, do not overly rely on this  system. The
driver is always responsible for paying attention to the vehicl e’ surroundings
and driving safely.
■ To ensure the system can operate properly
Observe the following precautions.
Failing  to  do  so  may  result  in  the  vehicle  being  unable  to  be  driven  safely
and possibly cause an accident.
● Do not damage the sensors, and always keep them clean.
● Do not attach a sticker or install an electronic component, such as a backlit
license  plate  (especially  fluorescent  type),  fog  lights,  fender   pole  or  wire-
less antenna near a radar sensor.
● Do  not  subject  the  surrounding  area  of  the  sensor  to  a  strong  impact.  If
subjected to an impact, have the vehicle inspected by your Toyota dealer.
If the front or rear bumper needs to be removed/installed or replaced, con-
tact your Toyota dealer.
● Do not modify, disassemble or paint the sensors.
● Do not attach a license plate cover.
● Keep your tires properly inflated.
■ When to disable the function
In  the  following  situations,  disable  the  function  as  it  may  operate  even
though there is no possibility of a collision.
● Failing to observe the warnings above.
● A non-genuine Toyota suspension (lowered suspension, etc.) is installed.
■ Notes when washing the vehicle
Do not apply intensive bursts of water or steam to the sensor a rea.
Doing so may result in the sensor malfunctioning.
● When using a high pressure washer to wash the vehicle, do not spray the
sensors directly, as doing so may cause a sensor to malfunction .
● When  using  steam  to  clean  the  vehicle,  do  not  direct  steam  too  close  to
the sensors as doing so may cause a sensor to malfunction. 

3194-5. Using the driving support systems
4
Driving
■Automatic system cancelation
In the following situations, the buzzer will sound intermittently and Crawl Con-
trol  will  be  canceled  automatically.  In  this  event,  the  Crawl  C ontrol  indicator
will  flash  and  then  goes  off,  and  a  message  stating  that  Crawl  Control  has
been  turned  off  will  be  displayed  on  the  multi-information  disp lay  for  several
seconds.
● When the shift lever is shifted to P or N
● When the front-wheel drive control switch is turned to “4H”
● When the driver’s door is opened
■ Function limitations
When the vehicle speed exceeds appr oximately 15 mph (25 km), engine con-
trol  and  brake  control  will  stop  temporarily.  In  this  event,  th e  Crawl  Control
indicator will flash.
■ When the Crawl Control system  is operated continuously
● If Crawl Control is used continuously for a long time, the buzz er will sound, a
malfunction  notification  will  be  displayed  on  the  multi-informa tion  display,
the  Crawl  Control  indicator  goes  off,  and  Crawl  Control  will  be   temporarily
inoperable  as  a  result  of  the  brake  system  overheating.  In  this  event,  stop
the vehicle immediately in a safe place, and allow the brake sy stem to cool
down sufficiently until the “TRAC OFF” indicator will goes off.  (In the mean-
time, normal driving is possible.)
● If Crawl Control is used continuously for a long time, the buzz er will sound,
the  system  will  be  temporarily  canceled,  and  a  malfunction  noti fication  will
be  displayed  on  the  multi-information  display  as  a  result  of  th e  automatic
transmission  system  overheating.  Stop  the  vehicle  in  a  safe  pla ce  until  the
display goes off.
■ Sounds and vibrations caused  by the Crawl Control system
● A  sound  may  be  heard  from  the  engine  compartment  when  the  engin e  is
started or just after the vehicle begins to move. This sound do es not indicate
that a malfunction has occurred in Crawl Control system.
● Either of the following conditions may occur when the Crawl Con trol system
is operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
■ When there is a malfunction in the system
Warning lights and/or warning messages will turn on. ( P. 489)