
2694-5. Using the driving support systems
4
Driving
CAMRY_U●
In some situations such as the following, sufficient braking force or steering
force may not be obtained, preventing the system from performin g properly:
• If  the  braking  functions  cannot  operate  to  their  full  extent,  such  as  when
the brake parts are extremely cold, extremely hot, or wet
• If  the  vehicle  is  not  properly  maintained  (brakes  or  tires  are   excessively
worn, improper tire inflation pressure, etc.)
• When  the  vehicle  is  being  driven  on  a  gravel  road  or  other  sli ppery  sur-
face
• When the road surface has deep wheel tracks
• When driving on a hill road
• When driving on a road that has inclines to the left or right
■ If VSC is disabled
●If VSC is disabled ( P. 324), the pre-collision brake assist and pre-collision
braking functions are also disabled.
● The PCS warning light will turn on and “VSC Turned Off Pre-Coll ision Brake
System Unavailable” will be displayed on the multi-information  display. 

2714-5. Using the driving support systems
4
Driving
CAMRY_U
WARNING
■Situations unsuitable for LTA system
In the following situations, use the LTA switch to turn the system off. Failure
to do so may lead to an accident, resulting in death or serious injury.
● Vehicle is driven on a road surface which is slippery due to rainy weather,
fallen snow, freezing, etc.
● Vehicle is driven on a snow-covered road.
● White (yellow) lines are difficult to see due to rain, snow, fog, dust, etc.
● Vehicle is driven in a temporary lane or restricted lane due to construction
work.
● Vehicle is driven in a construction zone.
● A spare tire, tire chains, etc. are equipped.
● When the tires have been excessively worn, or when the tire inf lation pres-
sure is low.
● During emergency towing
■ Preventing  LTA  system  malfunctions  and  operations  performed  by
mistake
● Do  not  modify  the  headlights  or  place  stickers,  etc.  on  the  sur face  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. 

2744-5. Using the driving support systems
CAMRY_U
WARNING
●Light from the headlights of an oncoming vehicle, the sun, etc. enters the
camera.
● 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 traffic lane is excessively narrow or wide.
● The  vehicle  is  extremely  tilted  due  to  carrying  heavy  luggage  o r  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 conditions
during driving (poor r oads or road seams).
● When driving in a tunnel or at night with the headlights off or  when a head-
light is dim due to its lens being dirty or it being misaligned.
● The vehicle is struck by a crosswind.
● The vehicle is affected by wind from a vehicle driven in a nearby lane.
● The vehicle has just changed lanes or crossed an intersection.
● Tires  which  differ  by  structure,  manufacturer,  brand  or  tread  p attern  are
used.
● When tires of a size other than specified are installed.
● Snow tires, etc. are equipped.
● The vehicle is being driven at extremely high speeds. 

3284-5. Using the driving support systems
CAMRY_U
WARNING
■The ABS does not operate effectively when
● The  limits  of  tire  gripping  performance  have  been  exceeded  (such  as
excessively worn tires on a snow covered road).
● The vehicle hydroplanes while driving at high speed on wet or s lick roads.
■ Stopping  distance when  the ABS   is  operating  may  exceed  that  of  nor-
mal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain  a  safe  distance  from  the  vehicle  in  front  of  you,  especially  in  the
following situations:
● When driving on dirt, gravel or snow-covered roads
● When driving with tire chains
● When driving over bumps on the road
● When driving over roads with potholes or uneven surfaces
■ TRAC/VSC may not operate effectively when
Directional  control  and  power  may  not  be  achievable  while  driving  on  slip-
pery road surfaces, even if the TRAC/VSC system is operating. 
Drive  the  vehicle  carefully  in  conditions  where  stability  and  p ower  may  be
lost.
■ Active Cornering Assist does not operate effectively when
● Do not overly rely on Active Cornering Assist. Active Cornering Assist may
not  operate  effectively  when  accelerating  down  slopes  or  driving  on  slip-
pery road surfaces.
● When  Active  Cornering  Assist  frequently  operates,  Active  Cornering
Assist  may  temporarily  stop  operating  to  ensure  proper  operatio n  of  the
brakes, TRAC and VSC. 

3294-5. Using the driving support systems
4
Driving
CAMRY_U
WARNING
■Hill- start assist control does  not operate effectively when
● Do  not  overly  rely  on  hill-start  assist  control.  Hill-start  ass ist  control  may
not operate effectively on steep inclines and roads covered wit h ice.
● Unlike the parking brake, hill-start assist control is not inte nded to hold the
vehicle  stationary  for  an  extended  period  of  time.  Do  not  attempt  to  use
hill-start  assist  control  to  hold  the  vehicle  on  an  incline,  as   doing  so  may
lead to an accident.
■ When the TRAC/VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.
■ When the TRAC/VSC systems are turned off
Be  especially  careful  and  drive  at  a  speed  appropriate  to  the  r oad  condi-
tions. As  these  are  the  systems  to  help  ensure  vehicle  stability  and  driving
force, do not turn the TRAC/VSC systems off unless necessary.
■ Secondary Collision Brake
Do  not  overly  rely  solely  upon  the  Secondary  Collision  Brake. This  system
is  designed  to  help  reduce  the  possibility  of  further  damage  du e  to  a  sec-
ondary  collision,  however,  that  effect  changes  according  to  various  condi-
tions. Overly relying on the system may result in death or serious injury.
■ Replacing tires
Make  sure  that  all  tires  are  of  the  specified  size,  brand,  trea d  pattern  and
total  load  capacity.  In  addition,  make  sure  that  the  tires  are  inflated  to  the
recommended tire inflation pressure level.
The ABS, TRAC and VSC systems will not function correctly if different tires
are installed on the vehicle.
Contact  your  Toyota  dealer  for  further  information  when  replaci ng  tires  or
wheels.
■ Handling of tires and the suspension
Using tires with any kind of problem or modifying the suspensio n will affect
the driving assist systems, and may cause a system to malfunction. 

3444-5. Using the driving support systems
CAMRY_U
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.
● When using an automatic car wash, disable the intuitive parking  assist 

3514-5. Using the driving support systems
4
Driving
CAMRY_U■
Situations in which the syst em may not operate properly
The  RCTA  function  may  not  detect  vehicles  correctly  in  the  foll owing  situa-
tions:
● When  the  sensor  is  misaligned  due  to  a  strong  impact  to  the  sensor  or  its
surrounding area
● When mud, snow, ice, a sticker, etc., is covering the sensor or surrounding
area on the position above the rear bumper
● When  driving  on  a  road  surface  that  is  wet  with  standing  water  during  bad
weather, such as heavy rain, snow, or fog
● When  multiple  vehicles  are  approaching  with  only  a  small  gap  be tween
each vehicle
● When a vehicle is approaching at high speed
● When  equipment  that  may  obstruct  a  sensor  is  installed,  such  as  a towing
eyelet,  bumper  protector  (an  additional  trim  strip,  etc.),  bicy cle  carrier,  or
snow plow
● When towing a trailer
● When there is a significant difference in height between your vehicle and the
vehicle that enters the detection area
● When a sensor or the area around a sensor is extremely hot or c old
● If  the  suspension  has  been  modified  or  tires  of  a  size  other  th an  specified
are installed
● If the front of the vehicle is raised or lowered due to the car ried load
●
When  backing  up  on  a  slope  with  a
sharp change in grade
● When backing out of a sharp angle park-
ing spot 

3534-5. Using the driving support systems
4
Driving
CAMRY_U●
When there are spinning objects near your vehicle such as the f an of an air
conditioning unit
● When water is splashed or sprayed a sprinkler
● Moving objects (flags, exhaust fumes, large rain droplets or snowflakes, rain
water on the road surface, etc.)
● When  the  distance  between  your  vehicle  and  a  guardrail,  wall,  etc.,  that
enters the detection area is short
● Gratings and gutters
● When a sensor or the area around a sensor is extremely hot or c old
● If  the  suspension  has  been  modified  or  tires  of  a  size  other  th an  specified
are installed
● If the front of the vehicle is raised or lowered due to the car ried load
●
When  a  vehicle  passes  by  the  side  of
your vehicle
● When  a  detected  vehicle  turns  while
approaching the vehicle