
421-1. For safe use
WARNING
■SRS airbag precautions
● Do  not  use  seat  accessories  which  cover  the  parts  where  the  SRS   side
airbags  inflate  as  they  may  interfere  with  inflation  of  the  air bags.  Such
accessories may prevent the side airbags from activating correctly, disable
the  system  or  cause  the  side  airbags  to  inflate  accidentally,  resulting  in
death or serious injury.
● Do not strike or apply significant levels of force to the area of the SRS air-
bag components. 
Doing so can cause the SRS airbags to malfunction.
● Do  not  touch  any  of  the  component  parts  immediately  after  the  SRS  air-
bags have deployed (inflated) as they may be hot.
● If breathing becomes difficult after the SRS airbags have deployed, open a
door  or  window  to  allow  fresh  air  in,  or  leave  the  vehicle  if  i t  is  safe  to  do
so. Wash off any residue as soon as possible to prevent skin ir ritation.
● If the areas where the SRS airbags are stored, such as the steering wheel
pad  and  front  and  rear  pillar  garnishes,  are  damaged  or  cracked,  have
them replaced by your Toyota dealer.
● Do  not  place  anything,  such  as  a  cushion,  on  the  front  passenger’s  seat.
Doing so will disperse the passenger’s weight, which prevents the sensor
from detecting the passenger’s weight properly. As a result, the SRS front
airbags for the front passenger may not deploy in the event of a collision.
■ Modification and disposal of SRS airbag system components
Do not dispose of your vehicle or perform any of the following modifications
without consulting your Toyota dealer. The SRS airbags may malfunction or
deploy (inflate) accidentally, causing death or serious injury.
● Installation, removal, disassembly and repair of the SRS airbags
● Repairs,  modifications,  removal  or  replacement  of  the  steering  wheel,
instrument panel, dashboard, seats or seat upholstery, front, side and rear
pillars or roof side rails
● Repairs  or  modifications  of  the  front  fender,  front  bumper,  or  side  of  the
occupant compartment
● Installation  of  a  grille  guard  (bull  bars,  kangaroo  bar,  etc.),   snow  plows,
winches or roof luggage carrier
● Modifications to the vehicle’s suspension system
● Installation  of  electronic  devices  such  as  mobile  two-way  radio s  and  CD
players
● Modifications to your vehicle for a person with a physical disability 

2384-5. Using the driving support systems
WARNING
●Do  not  attach  accessories,  stickers  (including  transparent  stic kers)  or
other items to the radar sensor, radar sensor cover or surrounding area.
● Do not subject the radar sensor or its surrounding area to a st rong impact. 
If  the  radar  sensor,  front  grille,  or  front  bumper  has  been  subjected  to  a
strong impact, have the vehicle inspected by your Toyota dealer.
● Do not disassemble the radar sensor.
● Do not modify or paint the radar sensor or radar sensor cover.
● In the following cases, the radar sensor must be recalibrated. Contact your
Toyota dealer for details.
• When  the  radar  sensor  or  front  grille  are  removed  and  installe d,  or
replaced
• When the front bumper is replaced
■ To avoid malfunction of the front camera
Observe the following precautions.
Otherwise,  the  front  camera  may  not  operate  properly,  possibly  leading  to
an accident resulting in death or serious injury.
● Keep the windshield clean at all times.
• If  the  windshield  is  dirty  or  covered  with  an  oily  film,  water   droplets,
snow, etc., clean the windshield.
• If a glass coating agent is applied to the windshield, it will still be neces- sary  to  use  the  windshield  wipers  to  remove  water  droplets,  etc.,  from
the area of the windshield in front of the front camera.
• If the inner side of the windshield where the front camera is  installed is
dirty, contact your Toyota dealer.
B: Approximately  7.9  in.  (20  cm)  (Approximately  4.0  in.  [10  cm]  to  the
right and left from the center of the front camera)
● Do  not attach objects,  such as  stickers,
transparent  stickers,  etc.,  to  the  outer
side  of  the  windshield  in  front  of  the
front  camera  (shaded  area  in  the  illus-
tration).
A: From  the  top  of  the  windshield  to
approximately  0.4  in.  (1  cm)  below
the bottom of the front camera 

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. 

2474-5. Using the driving support systems
4
Driving
WARNING
■When to disable the pre-collision system
In  the  following  situations,  disable  the  system,  as  it  may  not  operate  prop-
erly, possibly leading to an accident resulting in death or serious injury:
● When the vehicle is being towed
● When your vehicle is towing another vehicle
● When  transporting  the  vehicle  via  truck,  boat,  train  or  similar   means  of
transportation
● When  the  vehicle  is  raised  on  a  lift  with  the  engine  running  and  the  tires
are allowed to rotate freely
● When inspecting the vehicle using a drum tester such as a chass is dyna-
mometer  or  speedometer  tester,  or  when  using  an  on  vehicle  whee l  bal-
ancer
● When a strong impact is applied to the front bumper or front gr ille, due to
an accident or other reasons
● If the vehicle cannot be driven in a stable manner, such as when the vehi-
cle has been in an accident or is malfunctioning
● When the vehicle is driven in a sporty manner or off-road
● When the tires are not properly inflated
● When the tires are very worn
● When tires of a size other than specified are installed
● When tire chains are installed
● When a compact spare tire or an emergency tire puncture repair  kit is used
● If equipment (snow plow, etc.) that may obstruct the radar sens or or front
camera is temporarily installed to the vehicle 

2544-5. Using the driving support systems
• When  there  are  patterns  or  paint  on  the  road  or  a  wall  that  may  be  mis-
taken for a vehicle or pedestrian
• When  driving  near  an  object  that  reflects  radio  waves,  such  as   a  large
truck or guardrail
• When driving near a TV tower, broadcasting station, electric power plant,
or  other  location  where  strong  radio  waves  or  electrical  noise  may  be
present
■ Situations in which the syst em may not operate properly
● In  some  situations  such  as  the  following,  a  vehicle  may  not  be  detected  by
the  radar  sensor  and  front  camera,  preventing  the  system  from  operating
properly:
• If an oncoming vehicle is approaching your vehicle
• If a vehicle ahead is a motorcycle or bicycle
• When approaching the side or front of a vehicle
• If a preceding vehicle has a small rear end, such as an unload ed truck
• If a vehicle ahead is carrying a load which protrudes past its rear bumper
• If a vehicle ahead is irregularly shaped, such as a tractor or side car
• If the sun or other light is shining directly on a vehicle ahe ad
• If a vehicle cuts in front of your vehicle or emerges from bes ide a vehicle
• If a vehicle ahead makes an abrupt maneuver (such as sudden sw erving,
acceleration or deceleration)
• When suddenly cutting behind a preceding vehicle • If  a  preceding  vehicle  has  a  low  rear end, such as a low bed trailer
• If a vehicle ahead has extremely high ground clearance 

2864-5. Using the driving support systems
■The system can be operated when
●The engine switch is in ON mode.
● Intuitive parking assist function is on.
● The vehicle speed is less than about 6 mph (10 km/h).
● A shift position other than P is selected.
■ Sensor detection information
●The  sensor’s  detection  areas  are  limited  to  the  areas  around  th e  vehicle’
front and rear bumpers.
● The following situations may occur during use.
• Depending on the shape of the object and other factors, the de tection dis-
tance may shorten, or detection may be impossible.
• Detection  may  be  impossible  if  static  objects  draw  too  close  to  the  sen- sor.
• There  will  be  a  short  delay  between  static  object  detection  and  display (warning  buzzer  sounds).  Even  at  low  speeds,  there  is  a  possibi lity  that
the  object  will  come  within  11.9  in.  (30  cm)  before  the  display   is  shown
and the warning buzzer sounds.
• It might be difficult to hear the buzzer due to the volume of the audio sys- tem or air flow noise of the air conditioning system.
• It may be difficult to  hear  the  sound of this system due  to  the buzzers of other systems.
■ Objects which the system may  not be properly detected
The shape of the object may prevent the sensor from detecting i t. Pay partic-
ular attention to the following objects:
● Wires, fences, ropes, etc.
● Cotton, snow and other materials that absorb sound waves
● Sharply-angled objects
● Low objects
● Tall  objects  with  upper  sections  projecting  outwards  in  the  dir ection  of  your
vehicle
■ Situations in which the syst em may not operate properly
Certain  vehicle  conditions  and  the  surrounding  environment  may  affect  the
ability of  a sensor  to correctly  detect objects.  Particular  instances  where  this
may occur are listed below.
● There  is  dirt,  snow,  water  drops  or  ice  on  a  sensor.  (Cleaning  the  sensors
will resolve this problem.)
● A sensor is frozen. (Thawing the area will resolve this problem .) 
In  especially  cold  weather,  if  a  sensor  is  frozen  the  sensor  di splay  may  be
displayed abnormally, or objects, such as a wall, may not be detected. 

2874-5. Using the driving support systems
4
Driving
●On an extremely bumpy road, on an incline, on gravel, or on gra ss.
● When  vehicle  horns,  vehicle  detectors,  motorcycle  engines,  air  brakes  of
large vehicles, the clearance sonar of other vehicles or other  devices which
produce ultrasonic waves are near the vehicle
● A sensor is coated with a sheet of spray or heavy rain.
● If objects draw too close to the sensor.
● When a pedestrian is wearing clothing that does not reflect ult rasonic waves
(ex. skirts with gathers or frills).
● When objects that are not perpendicular to the ground, not perpendicular to
the vehicle traveling direction, uneven, or waving are in the d etection range.
● Strong wind is blowing
● When driving in inclement weather such as fog, snow or a sandst orm
● When  an  object  that  cannot  be  detected  is  between  the  vehicle  a nd  a
detected object
● If an object such as a vehicle, motorcycle, bicycle or pedestrian cuts in front
of the vehicle or runs out from the side of the vehicle
● If  the  orientation  of  a  sensor  has  been  changed  due  to  a  collis ion  or  other
impact
● 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
● If the front of the vehicle is raised or lowered due to the car ried load
● If the vehicle cannot be driven in a stable manner, such as whe n the vehicle
has been in an accident or is malfunctioning
● When a tire chains, compact spare tire or an emergency tire pun cture repair
kit is used
●
When  a  sensor  or  the  area  around  a
sensor is extremely hot or cold. 

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.