2023 TOYOTA RAV4 HYBRID sensor

2574-5. Using the driving support systems
4
Driving
The system can detect the fol-
lowing (The detectable objects
differs depending on the func-
tion.):
Vehicles
 Bicyclists 
Pedestrians
■Pre-collision warning
When the system determines
that the possibility of a frontal
collision is high, a buzzer will
sound and a warning message
will be displayed on the multi-
information display to urge the
driver to take evasive action.
■Pre-collision brake assist
When the system determines
that the possibility of a frontal
collision is high, the system
applies greater braking force in
relation to how strongly the
brake pedal is depressed.
■Pre-collision braking
If the system determines that
the possibility of a frontal colli-
sion is extremely high, the
brakes are automatically applied
to help avoid the collision or
reduce the impact of the colli-
sion.
■Emergency steering assist
If the system determines that
the possibility of a collision with
PCS (Pre-Collision Sys-
tem)
The pre-collision system
uses a radar sensor and
front camera to detect
objects ( P.257) in front of
the vehicle. When the sys-
tem determines that the
possibility of a frontal colli-
sion with an object is high,
a warning operates to urge
the driver to take evasive
action and the potential
brake pressure is increased
to help the driver avoid the
collision. If the system
determines that the possi-
bility of a frontal collision
with an object is extremely
high, the brakes are auto-
matically applied to help
avoid the collision or help
reduce the impact of the
collision.
The pre-collision system can
be disabled/enabled and the
warning timing can be
changed. ( P.260)
Detectable objects
System functions

2654-5. Using the driving support systems
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Driving
objects that may contact your
vehicle, such as thick grass, tree
branches, or a banner
• When driving through steam or smoke
• 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, radar equipped vehi-
cles, etc., or other location where
strong radio waves or electrical
noise may be present
• When there are many things which can reflect the radio waves
of the radar in the vicinity (tunnels,
truss bridges, gravel roads, snow
covered road that have tracks,
etc.)
• While making a right/left turn, when an oncoming vehicle or a
crossing pedestrian has already
exited the path of your vehicle
• While making a right/left turn, closely in front of an oncoming
vehicle or a crossing pedestrian.
• While making a right/left turn, when an oncoming vehicle or a
crossing pedestrian stops before
entering the path of your vehicle
• While making a right/left turn,
when an oncoming vehicle turns
right/left in front of your vehicle
• While steering into the direction of oncoming traffic
■Situations in which the system
may not operate properly
●In some situations such as the fol-
lowing, an object may not be
detected by the radar sensor and
front camera, pre
venting the sys-
tem from opera ting properly:
• When a detectable object is
approaching your vehicle
• When your vehicle or a detectable object is wobbling
• If a detectable object makes an abrupt maneuver (such as sudden
swerving, acceleration or deceler-
ation)
• When your vehicle approaches a detectable object rapidly
• When a detectable object is not
directly in front of your vehicle
• When a detectable object is near
a wall, fence, gua rdrail, manhole
cover, vehicle, steel plate on the
road, etc.
• When a detectable object is under a structure
• When part of a detectable object is hidden by an object, such as
large baggage, an umbrella, or
guardrail
• When there are many things which can reflect the radio waves
of the radar in the vicinity (tunnels,
truss bridges, gravel roads, snow
covered road that have tracks,
etc.)
• When there is an effect on the radio waves to the radar that is
installed on another vehicle
• When multiple det ectable objects
are close together
• If the sun or other light is shining
directly on a detectable object

2674-5. Using the driving support systems
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Driving
• If the wheels are misaligned
• If a wiper blade is blocking the front camera
• The vehicle is being driven at extremely high speeds
• When driving on a hill
• If the radar sensor or front camera
is misaligned
• When driving in a traffic lane sep-
arated by more t han one lane
where oncoming vehicles are driv-
ing while making a right/left turn
• When largely out of place with the opposite facing targeted oncom-
ing vehicle during a right/left turn
• While making a right/left turn, when a pedestrian approaches
from behind or side of your vehicle
●In addition to the above, in some
situations, such as the following,
the emergency steering assist
may not operate.
• When the white (yellow) lane lines are difficult to see, such as when
they are faint, di verging/merging,
or a shadow is cast upon them • When the lane is wider or nar-
rower than normal
• When there is a light and dark pat-
tern on the road surface, such as
due to road repairs
• When a pedestrian is detected
near the centerline of the vehicle
• When the target is too close
• When there is insufficient safe or unobstructed space for the vehicle
to be steered into
• If oncoming vehicle is present
• If VSC function is operating
●In some situations such as the fol-
lowing, sufficient braking force or
steering force may not be
obtained, preventing the system
from performing properly:
• If the braking functions cannot operate to their full extent, such as
when the brake parts are
extremely cold, ext remely hot, or
wet
• If the vehicle is not properly main- tained (brakes or tires are exces-
sively worn, imprope r tire inflation
pressure, etc.)
• When the vehicle is being driven on a gravel road or other slippery
surface
• 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.327), the
pre-collision brak e assist and pre-
collision braking functions are also
disabled.
●The PCS warning light will turn on
and “VSC Turned Off Pre-Colli-
sion Brake System Unavailable”
will be displayed on the multi-
information display.

2784-5. Using the driving support systems
Depending on the vehicle condition
and road conditions, the warning
may not operate. Also, if the system
determines that the vehicle is driv-
ing around a curve, warnings will
occur earlier than during straight-
lane driving.
●When the system determines that
the driver is driving without hold-
ing the steering wheel while the
steering wheel assist of the steer-
ing assist function is operating.
If the driver continues to keep their
hands off of the steering wheel and
the steering wheel assist is operat-
ing, the buzzer sounds and the
driver is warned. Each time the
buzzer sounds, the continuing time
of the buzzer becomes longer.
■Vehicle sway warning function
When the system de termines that
the vehicle is swaying while the
vehicle sway warning function is
operating, a buzzer sounds and a
warning message urging the driver
to rest and the symbol shown in the
illustration are sim ultaneously dis-
played on the multi-information dis-
play.
Depending on the vehicle and road
conditions, the warning may not
operate.
■Warning message
If the follo wing warning message is
displayed on the multi-information
display and the LTA indicator illumi-
nates in orange, follow the appropri-
ate troubleshooting procedure. Also,
if a different warning message is displayed, follow the instructions
displayed on the screen.
●“LTA Malfunction Visit Your
Dealer”
The system may not be operating
properly. Have the vehicle inspected
by your Toyo ta dealer.
●“LTA Unavailable”
The system is temporarily canceled
due to a malfunction in a sensor
other than the front camera. Turn
the LTA system off, wait for a little
while, and then turn the LTA system
back on.
●“LTA Unavailable at Current
Speed”
The function cannot be used as the
vehicle speed exceeds the LTA
operation range. Drive slower.
■Customization
Function settings can be changed.
(  P.110, 121)

2814-5. Using the driving support systems
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Driving
■Conditions in which the func-
tion may not operate or detect
correctly
In the following situations, RSA
does not operate normally and may
not recognize signs, display the
incorrect sign, etc. However, this
does not indicate a malfunction.
●The front camera is misaligned
due to a strong impact being
applied to the sensor, etc.
●D i r t , s n o w , s t i c k e r s , e t c . a r e o n t h e
windshield near the front camera.
●In inclement weather such as
heavy rain, fog, snow or sand
storms.
●Light from an oncoming vehicle,
the sun, etc. enters the front cam-
era.
●The sign is dirty, faded, tilted or
bent.
●The contrast of electronic sign is
low.
●All or part of the sign is hidden by
the leaves of a tree, a pole, etc.
●The sign is only visible to the front
camera for a short amount of time.
●The driving scene (turning, lane
change, etc.) is judged incorrectly.
●If a sign not appropriate for the
currently traveled lane, but the
sign exists directly after a freeway
branches, or in an adjacent lane
just before merging.
●Stickers are attached to the rear
of the preceding vehicle.
●A sign resembling a system com-
patible sign is recognized.
●Side road speed signs may be
detected and displayed (if posi-
tioned in sight of the front camera)
while the vehicle is traveling on
the main road.
●Roundabout exit road speed signs
may be detected and displayed (if
positioned in sight of the front
camera) while traveling on a
roundabout.
●The front of the vehicle is raised or
lowered due to the carried load.
●The surrounding brightness is not
sufficient or changes suddenly.
●When a sign inte nded for trucks,
etc. is recognized.
●The speed information displayed
on the meter and on the naviga-
tion system may be different due
to the navigation system using
map data.
■Speed limit sign display
If the power switch was last turned
off while a speed limit sign was dis-
played on the multi-information dis-
play, the same sign displays again
when the power switch is turned to
ON.
■If “RSA Malfunction Visit Your
Dealer” is shown
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
■Customization
Some functions can be customized.
(  P.110, 121)

2834-5. Using the driving support systems
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Driving
WARNING
■Before using dynamic radar
cruise control with full-speed
range
●Driving safely is the sole
responsibility of the driver. Do
not rely solely o n the system,
and drive safely by always pay-
ing careful attention to your sur-
roundings.
●The dynamic radar cruise con-
trol with full-speed range pro-
vides driving assistance to
reduce the driver’s burden.
However, there are limitations
to the assistance provided.
Read the following conditions
carefully. Do not overly rely on
this system and always drive
carefully.
• When the sensor may not be correctly detect ing the vehicle
ahead: P.292
• Conditions under which the vehicle-to-vehicle distance con-
trol mode may not function cor-
rectly: P.292
●Set the speed appropriately
depending on the speed limit,
traffic flow, road conditions,
weather conditions, etc. The
driver is respon sible for check-
ing the set speed.
●Even when the system is func-
tioning normally, the condition
of the preceding vehicle as
detected by the system may dif-
fer from the condition observed
by the driver. Therefore, the
driver must always remain alert,
assess the danger of each situ-
ation and drive safely. Relying
solely on this system or assum-
ing the system ensures safety
while driving can lead to an
accident, resulting in death or
serious injury.
●Switch the dynamic radar cruise
control with full-speed range
setting to off, using the cruise
control main switch when not in
use.
■Cautions regarding the driv-
ing assist systems
Observe the following precau-
tions, as there ar e limitations to
the assistance provided by the
system. Failure to do so may
cause an accident resulting in
death or serious injury.
●Assisting the driver to measure
following distance
The dynamic radar cruise control
with full-speed range is only
intended to help the driver in
determining the following distance
between the driver’s own vehicle
and a designated vehicle traveling
ahead. It is not a mechanism that
allows careless or inattentive driv-
ing, and it is not a system that can
assist the driver in low-visibility
conditions.
It is still necessa ry for driver to
pay close attenti on to the vehi-
cle’s surroundings.
●Assisting the driver to judge
proper following distance
The dynamic radar cruise control
with full-speed range determines
whether the following distance
between the driver’s own vehicle
and a designated vehicle traveling
ahead is within a set range. It is
not capable of making any other
type of judgement. Therefore, it is
absolutely necessary for the
driver to remain vigilant and to
determine whether or not there is
a possibility of danger in any
given situation.

2844-5. Using the driving support systems
WARNING
●Assisting the driver to operate
the vehicle
The dynamic radar cruise control
with full-speed range does not
include function s which will pre-
vent or avoid collisions with vehi-
cles ahead of your vehicle.
Therefore, if there is ever any
possibility of da nger, the driver
must take immediate and direct
control of the vehicle and act
appropriately in order to ensure
the safety of all involved.
■Situations unsuitable for
dynamic radar cruise control
with full-speed range
Do not use dynamic radar cruise
control with full-speed range in
any of the following situations.
Doing so may result in inappropri-
ate speed control and could
cause an accident resulting in
death or serious injury.
●Roads where there are pedes-
trians, cyclists, etc.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as
those covered with rain, ice or
snow
●On steep downhills, or where
there are sudden changes
between sharp up and down
gradients
Vehicle speed may exceed the
set speed when driving down a
steep hill.
●At entrances to freeways and
highways
●When weather conditions are
bad enough that they may pre-
vent the sensors from detecting
correctly (fog, snow, sandstorm,
heavy rain, etc.)
●When there is rain, snow, etc.
on the front surface of the radar
or front camera
●In traffic conditi ons that require
frequent repeated acceleration
and deceleration
●When your vehicle is towing a
trailer or during emergency tow-
ing
●When an approach warning
buzzer is heard often

2914-5. Using the driving support systems
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Driving
when the vehicle speed is approx-
imately 20 mph (30 km/h) or more.
(However, when the vehicle speed
is set while driving at below
approximately 20 mph [30 km/h],
the set speed will be set to
approximately 20 mph [30 km/h].)
■Accelerating after setting the
vehicle speed
The vehicle can accelerate by oper-
ating the accelerator pedal. After
accelerating, the set speed
resumes. However, during vehicle-
to-vehicle distance control mode,
the vehicle spee d may decrease
below the set speed in order to
maintain the distance to the preced-
ing vehicle.
■When the vehicle stops while
follow-up cruising
●Pressing the “+RES” switch while
the vehicle ahead stops will
resume follow-up cruising if the
vehicle ahead starts off within
approximately 3 seconds after the
switch is pressed.
●If the vehicle ahead starts off
within 3 seconds after your vehicle
stops, follow-up cruising will be
resumed.
■Automatic cancelation of vehi-
cle-to-vehicle d istance control
mode
Vehicle-to-vehicle distance control
mode is automatically canceled in
the following situations.
●VSC is activated.
●TRAC is activated for a period of
time.
●When the VSC or TRAC system is
turned off.
●The sensor cannot detect cor-
rectly because i t is covered in
some way.
●When the brake control or output
restriction control of a driving sup-
port system operates.
(For example: Pre-Collision Sys-
tem, Drive-Start Control)
●The parking brake is operated.
●The vehicle is stopped by system
control on a steep incline.
●The following are detected when
the vehicle has been stopped by
system control:
• The driver is not wearing a seat
belt.
• The driver’s door is opened.
• The vehicle has been stopped for about 3 minutes
If vehicle-to-vehicle distance control
mode is automatically canceled for
any reasons other than the above,
there may be a malfunction in the
system. Contact your Toyota dealer.
■Automatic cancelation of con-
stant speed control mode
Constant speed control mode is
automatically cance led in the follow-
ing situations:
●Actual vehicle speed is more than
approximately 10 mph (16 km/h)
below the set vehicle speed.
●Actual vehicle speed falls below
approximately 20 mph (30 km/h).
●VSC is activated.
●TRAC is activated for a period of
time.
●W h en t he V S C o r T RA C sys te m is
turned off.
●When the brake control or output
restriction control of a driving sup-
port system operates.
(For example: Pre-Collision Sys-
tem, Drive-Start Control)
●The parking brake is operated.
If constant speed control mode is
automatically canceled for any rea-
sons other than the above, there
may be a malfunction in the system.
Contact your Toyota dealer.
■Brake operation
A brake operation sound may be
heard and the brake pedal response
may change, but these are not mal-