sensor TOYOTA RAV4 PLUG-IN HYBRID 2021 Service Manual

375
5
5-5. Using the driving support systems
Driving
system will notify the driver.
 When the vehicle speed exceeds
the speed notific ation threshold
of the speed limit sign displayed,
the sign display will be empha -
sized and a buzzer will sound.
 When the RSA system recog-
nizes a no-entry sign and detects
that the vehicle has entered a
no-entry area based on the map
information of the navigation sys -
tem, the no-entry sign flashes
and a buzzer will sound. (For
vehicles with navigation system)
 If it is detected that your vehicle
is overtaking when a no overtak -
ing sign is displayed on the multi-
information display, the dis -
played sign will flash and a steer -
ing wheel will vibrate.
Depending on the situation, traffic
environment (traffic direction,
speed unit) may be detected incor -
rectly and a notification function
may not operate properly.
■Setting procedure
→ P.186
■Automatic turn-off of RSA sign dis-
play
One or more signs automatically turn off
in the following situations.
●No sign has been recognized for a
certain distance.
●The road changes due to a left or right
turn, etc.
■Conditions in which the function
may not operate or detect correctly
In the following situations, RSA does not
operate normally and may not recognize
signs, display the i ncorrect sign, etc.
However, this does not indicate a mal - function.
●The front camera is misaligned due to a strong impact being applied to the
sensor, etc.
●Dirt, snow, stickers, etc. are on the
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 camera.
●The sign is dirty, f aded, 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 visi ble 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 cur -
rently traveled lane, but the sign exists dir e ct ly a ft er a f r eew ay br an ch es , or in
an adjacent lane ju st before merging.
●Stickers are attached to the rear of the
preceding vehicle.
●A sign resembling a system compati-
ble sign is recognized.
●Side road speed signs may be
detected and displa yed (if positioned
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 br ightness is not suf-
ficient or changes suddenly.
●When a sign intended for trucks, etc.
is recognized.
●The vehicle is driven in a country with
a different direction of traffic.
●The navigation syst em map data is

377
5
5-5. Using the driving support systems
Driving
Indicators
■Operation switches
Vehicle-to-vehicle distance
switch
“+RES” switch
Cruise control main switch
Cancel switch
“-SET” switch
WARNING
■Before using dynamic radar
cruise control with full-speed
range
●Driving safely is the sole responsi -
bility of the driver. Do not rely solely
on the system, and drive safely by always paying careful attention to
your surroundings.
●The dynamic radar cruise control
with full-speed range provides driv -
ing assistance to reduce the driver’s burden. However, there are
limitations to the assistance pro -
vided.
Read the following conditions care -
fully. Do not overly rely on this system
and always drive carefully.
• When the sensor may not be cor -
rectly detecting the vehicle
ahead: →P.386
C
A
B
C
D
E
• Conditions under which the vehicle- to-vehicle distance control mode
may not function correctly: →P.387
●Set the speed appropriately
depending on the speed limit, traffic
flow, road conditions, weather con - ditions, etc. The driver is responsi -
ble for checking the set speed.
●Even when the system is function -
ing normally, the condition of the
preceding vehicle as detected by the system may differ from the con -
dition observed by the driver.
Therefore, the dri ver must always remain alert, assess the danger of
each situation and drive safely.
Relying solely on this system or assuming the system ensures
safety while driving can lead to an
accident, resulti ng in death or seri- ous injury.
●Switch the dynamic radar cruise control with full-speed range setting
to off, using the cruise control main
switch when not in use.

3785-5. Using the driving support systems
WARNING
■Cautions regarding the driving
assist systems
Observe the following precautions, as there are limitations to the assistance
provided by the syst em. Failure to do
so may cause an accident resulting in death or serious injury.
●Assisting the driver to measure fol -
lowing distance
The dynamic radar cruise control with
full-speed range is only intended to
help the driver in determining the fol -
lowing distance bet ween the driver’s
own vehicle and a designated vehicle
traveling ahead. It is not a mechanism
that allows carele ss or inattentive
driving, and it is not a system that can
assist the driver in low-visibility condi-
tions.
It is still necessary for driver to pay
close attention to the vehicle’s sur -
roundings.
●Assisting the driver to judge proper
following distance
The dynamic radar cruise control with
full-speed range determines whether
the following dist ance 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 judgemen t. 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.
●Assisting the driver to operate the vehicle
The dynamic radar cruise control with
full-speed range does not include
functions which will prevent or avoid
collisions with vehi cles ahead of your
vehicle. Therefore, if there is ever any
possibility of danger, 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 con-
trol with full-speed range in any of the
following situations. Doing so may result in inappropriate speed control
and could cause an accident resulting
in death or serious injury.
●Roads where there are pedestrians,
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 high - ways
●When weather conditions are bad
enough that they may prevent the sensors from detecting correctly
(fog, snow, sandstorm, heavy rain,
etc.)

385
5
5-5. Using the driving support systems
Driving
speed limit
Press and hold the “-SET” switch.
Dynamic Radar Cruise Control with
Road Sign Assist can be
enabled/disabled in the screen
on the multi-information display.
( →P.186)
■Dynamic radar cruise control with
full-speed range can be set when
●The shift lever is in D.
●The desired set sp eed can be set
when the vehicle speed is approxi-
mately 30 km/h (20 mph) or more. (However, when the vehicle speed is
set while driving at below approxi -
mately 30 km/h [20 mph], the set speed will be set to approximately 30
km/h [20 mph].)
■Accelerating after setting the vehi -
cle speed
The vehicle can accelerate by operating
the accelerator ped al. After accelerat-
ing, the set speed resumes. However, during vehicle-to-vehicle distance con -
trol mode, the vehicle speed may
decrease below the set speed in order to maintain the distance to the preced -
ing vehicle.
■When the vehicle stops while fol -
low-up cruising
●Pressing the “+RES” switch while the
vehicle ahead stops will resume fol - low-up cruising if the vehicle ahead
starts off within approximately 3 sec -
onds after the sw itch is pressed.
●If the vehicle ahead starts off within 3
seconds after your vehicle stops, fol - low-up cruising will be resumed.
■Automatic cancelation of vehicle-
to-vehicle distance control mode
Vehicle-to-vehicle distance control mode is automatically canceled in the
following situations.
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is
turned off.
●The sensor cannot detect correctly
because it is covered in some way.
●Pre-collision braking is activated.
●The parking brake is operated.
●The vehicle is st opped by system con- trol 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 malfuncti on in the system.
Contact any authoriz ed Toyota retailer
or Toyota authorized repairer, or any
reliable repairer.
■Automatic cancelation of constant
speed control mode
Constant speed control mode is auto -
matically canceled in the following situa -
tions:
Enabling/Disabling the
Dynamic Radar Cruise Con -
trol with Road Sign Assist
(vehicles with RSA)

3865-5. Using the driving support systems
●Actual vehicle speed is more than
approximately 16 km/h (10 mph) below the set vehicle speed.
●Actual vehicle speed falls below approximately 30 km/h (20 mph).
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is
turned off.
●Pre-collision braking is activated.
●The parking brak e is operated.
If constant speed c ontrol mode is auto-
matically canceled for any reasons other
than the above, there may be a malfunc -
tion in the system. Contact any autho-
rized Toyota ret ailer or Toyota
authorized repairer, or any reliable
repairer.
■The Dynamic Radar Cruise Control
with Road Sign Assist may not
operate properly when (vehicles with RSA)
As the Dynamic Radar Cruise Control
with Road Sign Assist may not operate properly in conditions in which RSA may
not operate or detect correctly
( →P.375), when using this function, make sure to check th e speed limit sign
displayed.
In the following situations, the set speed may not be changed t o the recognized
speed limit by pressi ng and holding the
“+RES”/“-SET” switch.
●If speed limit information is not avail -
able
●When the recognized speed limit is
the same as the set speed
●When the recognized speed limit is
outside of the spe ed range that the
dynamic radar cruise control system can operate
■Brake operation
A brake operation sound may be heard
and the brake pedal response may change, but these ar e not malfunctions.
■Warning messages and buzzers for
dynamic radar cruise control with full-speed range
Warning messages and buzzers are
used to indicate a system malfunction or to inform the driver of the need for cau -
tion while driving. If a warning message
is shown on the multi-information dis - play, read the messa ge and follow the
instructions. ( →P.353, 578)
■When the sensor may not be cor-
rectly detecting the vehicle ahead
In the case of the following and depend -
ing on the conditions, operate the brake
pedal when deceleration of the system is insufficient or ope rate the accelerator
pedal when acceleration is required.
As the sensor may not be able to cor - rectly detect these types of vehicles, the
approach warning ( →P.383) may not be
activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the same lane
●Vehicles with small rear ends (trailers with no load on board, etc.)
●Motorcycles traveling in the same lane
●When water or snow thrown up by the
surrounding vehicles hinders the detecting of the sensor
●When your vehicle is pointing
upwards (caused by a heavy load in the luggage compartment, etc.)

387
5
5-5. Using the driving support systems
Driving
●Preceding vehicle has an extremely
high ground clearance
■Conditions under which the vehi -
cle-to-vehicle distance control mode may not function correctly
In the case of the following conditions,
operate the brake pedal (or accelerator pedal, depending on the situation) as
necessary.
As the sensor may not be able to cor- rectly detect vehicles ahead, the system
may not operate properly.
●When the road cur ves or when the
lanes are narrow
●When steering whee l operation or
your position in t he lane is unstable
●When the vehicle ahead of you decel-
erates suddenly
●When driving on a road surrounded by
a structure, such as in a tunnel or on a bridge
●While the vehicle speed is decreasing to the set speed after the vehicle
accelerates by dep ressing the accel-
erator pedal

393
5
5-5. Using the driving support systems
Driving
*: If equipped
Multi-information display
Turning the BSM function/RCTA func -
tion on/off.
Outside rear view mirror indica -
tors
BSM (Blind Spot Moni-
tor)*
The Blind Spot Monitor is a
system that has 2 functions:
 The BSM (Blind Spot Monitor)
function
Assists the driver in making a
decision when changing lanes
 The RCTA (Rear Crossing
Traffic Alert) function (if
equipped)
Assists the driver when backing
up
These functions use the same
sensors.
WARNING
■Cautions regarding the use of the BSM function
The driver is solely responsible for
safe driving. Alwa ys drive safely, tak- ing care to observe your surround -
ings.
The BSM function is a supplementary function which alerts the driver that a
vehicle is in a blind spot of the outside
rear view mirrors or is approaching rapidly from behind into a blind spot.
Do not overly rely on the BSM func -
tion. As the function cannot judge if it is safe to change lanes, over reliance
could lead to an accident resulting in
death or serious injury.
As the system may not function cor -
rectly under certain conditions, the
driver’s own visual confirmation of safety is necessary.
■Cautions regarding the use of the RCTA function
The driver is solely responsible for
safe driving. Always drive safely, tak- ing care to observe your surround -
ings.
The RCTA function is only a supple - mentary function which alerts the
driver that a vehi cle is approaching
from the right or left at the rear of the vehicle. As the RCTA function may
not function correctly under certain
conditions, the driver’s own visual confirmation of saf ety is necessary.
Over reliance on this function may
lead to an accident resulting death or serious injury.
System components
A
B

3945-5. Using the driving support systems
BSM function:
When a vehicle is detected in a blind
spot of the outside rear view mirrors or
approaching rapidly from behind into a
blind spot, the outside rear view mirror
indicator on the detected side will illumi -
nate. If the turn signal lever is operated
toward the detected side, the outside
rear view mirror indicator will flash.
RCTA function:
When a vehicle approaching from the
right or left at the re ar of the vehicle is
detected, both outsi de rear view mirror
indicators will flash.
Monitor screen display (RCTA
function only)
If a vehicle approaching from the right
or left at the rear of the vehicle is
detected, the RCTA icon ( →P.411) for
the detected side will be displayed.
BSM OFF indicator/RCTA OFF
indicator
When the Blind Spot Monitor is dis -
abled, the BSM OFF indicator illumi -
nates.
When the RCTA func tion is disabled,
the RCTA OFF indicator illuminates.
RCTA buzzer (RCTA function
only)
If a vehicle approaching from the right
or left at the rear of the vehicle is
detected, a buzzer will sound from
behind the rear seat.
The BSM function and the RCTA
function can be e nabled/disabled
on the screen of the multi-infor -
mation display. ( →P.186)
The BSM function/RCTA function will
be enabled each time the power switch
is turned to ON.
■Outside rear view mirror indicators visibility
In strong sunlight, the outside rear view
mirror indicator may be difficult to see.
■Hearing the RCTA buzzer
The RCTA buzzer may be difficult to
hear over loud noi ses such as high
audio volume.
■When “Blind Spot Monitor Unavail - able” or “RCTA Unavailable” is
shown on the multi-information
display
The sensor voltage has become abnor -
mal, or water, snow, mud, etc., may be
built up in the vicinit y of the sensor area of the rear bumper. ( →P.408)
Removing the water, snow, mud, etc.,
from the vicinity of the sensor area should return it to normal.
Also, the sensor ma y not function nor-
mally when used in extremely hot or cold weather.
■When “Blind Spot Monitor Malfunc -
tion Visit Your Dealer” or “RCTA
Malfunction Visit Your Dealer” is
shown on the multi-information display
There may be a sensor malfunction or
misaligned. Have the vehicle inspected at any authorized To yota retailer or
Toyota authorized repairer, or any reli -
able repairer.
■Customization
Some functions can be customized.
( →P.186)Turning the BSM func-
tion/RCTA function on/off
C
D
E

4085-5. Using the driving support systems
■Vehicles that can be detected
by the Blind Spot Monitor
The BSM function uses radar sen-
sors to detect the following vehicles
traveling in adjacent lanes and
advises the driver of the presence
of such vehicles via the indicators
WARNING
■Handling the radar sensor
Blind Spot Monitor sensors are
installed inside the left and right sides of the rear bumper respectively.
Observe the following to ensure the
Blind Spot Monitor can function cor - rectly.
●Keep the sensor s and the sur-
rounding areas on the rear bumper clean at all times.
If a sensor or its surrounding area
on the rear bumper is dirty or cov - ered with snow, the Blind Spot
Monitor may not operate and a
warning message ( →P.394) will be displayed. In this s ituation, clear off
the dirt or snow a nd drive the vehi-
cle with the operation conditions of the BSM function ( →P.410) satis-
fied for approximately 10 minutes. If
the warning message does not dis - appear, have the v ehicle inspected
by any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
●Do not subject a sensor or its sur - rounding area on the rear bumper
to a strong impact.
If a sensor is moved even slightly off position, the system may mal-
function and vehicles may not be
detected correctly. In the following situations, have
your vehicle inspected by any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
• A sensor or its surrounding area is subject to a strong impact.
• If the surrounding area of a sensor
is scratched or dented, or part of them has become disconnected.
●Do not disassemble the sensor.
●Do not attach acce ssories, stickers
(including transparent stickers), alu - minum tape, etc. to a sensor or its
surrounding area on the rear
bumper.
●Do not modify the sensor or sur -
rounding area on the rear bumper.
●If a sensor or the rear bumper
needs to be removed/installed or replaced, contact any authorized
Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
●Do not paint the rear bumper any
color other than an official Toyota color.
The Blind Spot Monitor
function

4105-5. Using the driving support systems
■The BSM function is operational when
The BSM function is operational when
all of the following conditions are met:
●The BSM function is on.
●The shift lever is in a position other
than R.
●The vehicle speed is greater than
approximately 16 km/h (10 mph).
■The BSM function will detect a
vehicle when
The BSM function will detect a vehicle
present in the detection area in the fol -
lowing situations:
●A vehicle in an adjacent lane over -
takes your vehicle.
●You overtake a vehicle in an adjacent
lane slowly.
●Another vehicle enters the detection
area when it changes lanes.
■Conditions under which the BSM function will not detect a vehicle
The BSM function is not designed to
detect the following types of vehicles and/or objects:
●Small motorcycles, bicycles, pedestri -
ans, etc.*
●Vehicles traveling in the opposite
direction
●Guardrails, walls, signs, parked vehi -
cles and similar stationary objects*
●Following vehicles that are in the
same lane*
●Vehicles traveling 2 lanes away from
your vehicle*
●Vehicles which are being overtaken
rapidly by your vehicle*: Depending on the conditions, detec -
tion of a vehicle and/or object may
occur.
■Conditions under which the BSM
function may not function correctly
●The BSM function may not detect
vehicles correctly in the following situ - ations:
• 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 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 veh icles are approach- ing with only a small gap between
each vehicle
• When the distance between your vehi - cle and a following vehicle is short
• When there is a significant difference
in speed between your vehicle and the vehicle that enters the detection
area
• When the difference in speed between your vehicle and another
vehicle is changing
• When a vehicle enters a detection area traveling at about the same
speed as your vehicle
• As your vehicle starts from a stop, a vehicle remains in the detection area
• When driving up and down consecu-
tive steep inclines, such as hills, dips in the road, etc.
• When driving on roads with sharp
bends, consecutive curves, or uneven surfaces
• When vehicle lanes are wide, or when
driving on the edge of a lane, and the vehicle in an adjacent lane is far away
from your vehicle
• When an accessory (such as a bicycle
carrier) is installed to the rear of the vehicle
• When there is a significant difference
in height between your vehicle and the vehicle that enters the detection
area
• Immediately afte r the BSM func- tion/RCTA function are turned on
• When towing a trailer