2023 TOYOTA RAV4 PRIME warning light

3435-5. Using the driving support systems
5
Driving
■Enabling/disabling the pre-
collision system
The pre-collision system can be
enabled/disabled on the
screen ( P.191, 203) of the
multi-information display.
The system is automatically
enabled each time the power
switch is turned to ON.
If the system is disabled, the
PCS warning light will turn on
and a message will be displayed
on the multi-information display.
WARNING

3455-5. Using the driving support systems
5
Driving
●Pre-collision warning
While the pre-collision warning function is operating, if the steering wheel is
operated heavily or suddenly, the pre -collision warning may be cancelled.
●Pre-collision brake assist
●Pre-collision braking
If either of the following occur while the pre-collision braking function is oper-
ating, it will be canceled:
• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.
●Emergency steering assist
When the turn signal lights are flashing, emergency steering as sist will not
operate in case of an emergency.
Detectable objectsVehicle speedRelative speed between
your vehicle and object
Preceding and stopped vehiclesApprox. 7 to 110 mph (10 to 180 km/h)Approx. 7 to 110 mph (10 to 180 km/h)
Oncoming vehiclesApprox. 7 to 110 mph (10 to 180 km/h)Approx. 13 to 110 mph (20 to 180 km/h)
Bicyclists and pedestri- ansApprox. 7 to 50 mph (10 to 80 km/h)Approx. 7 to 50 mph (10 to 80 km/h)
Detectable objectsVehicle speedRelative speed between your vehicle and object
Preceding and stopped vehiclesApprox. 20 to 110 mph (30 to 180 km/h)Approx. 20 to 110 mph (30 to 180 km/h)
Bicyclists and pedestri- ansApprox. 20 to 50 mph (30 to 80 km/h)Approx. 20 to 50 mph (30 to 80 km/h)
Detectable objectsVehicle speedRelative speed between your vehicle and object
Preceding and stopped vehiclesApprox. 7 to 110 mph (10 to 180 km/h)Approx. 7 to 110 mph (10 to 180 km/h)
Oncoming vehiclesApprox. 7 to 110 mph (10 to 180 km/h)Approx. 13 to 110 mph (20 to 180 km/h)
Bicyclists and pedestri- ansApprox. 7 to 50 mph (10 to 80 km/h)Approx. 7 to 50 mph (10 to 80 km/h)

3465-5. Using the driving support systems
If any of the following occur while the emergency steering assi st function is
operating, it will be canceled:
• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.
• The brake pedal is depressed.
●Intersection right/left turn assistance (pre-collision warning)
When the turn signal lights are not flashing, support for turning left or right at
an intersection which targets on coming vehicles does not work.
●Intersection right/left turn assistance (pre-collision braking)
When the turn signal lights are not flashing, support for turning left or right at
an intersection which targets on coming vehicles does not work.
■Object detection function
The system detects objects based
on their size, profile, motion, etc.
However, an object may not be
detected depending on the sur- rounding brightness and the motion,
posture, and angle of the detected
object, preventing the system from
operating properly. (
P.348)
The illustration shows an image of
Detectable objectsVehicle speedRelative speed between
your vehicle and object
Preceding and stopped vehicles, bicyclists and pedestriansApprox. 25 to 50 mph (40 to 80 km/h)Approx. 25 to 50 mph (40 to 80 km/h)
Detectable objectsVehicle speedOncoming vehicle speedRelative speed between your
vehicle and object
Oncoming vehi- clesApprox. 7 to 15 mph (10 to 25 km/h)Approx. 20 to 35 mph (30 to 55 km/h)Approx. 25 to 50 mph (40 to 80 km/h)
Pedestrians
Approx. 7 to 15 mph (10 to 25 km/h)

Approx. 7 to 15 mph (10 to 25 km/h)
Detectable objectsVehicle speedOncoming vehicle speedRelative speed between your
vehicle and object
Oncoming vehi- clesApprox. 10 to 15 mph (15 to 25 km/h)Approx. 20 to 28 mph (30 to 45 km/h)Approx. 28 to 43 mph (45 to 70 km/h)
Pedestrians
Approx. 7 to 15 mph (10 to 25 km/h)

Approx. 7 to 15 mph (10 to 25 km/h)

3515-5. Using the driving support systems
5
Driving
pre-collision brake 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.
LTA (Lane Tracing
Assist)
While driving on a road with
clear white (yellow) lane
lines, the LTA system warns
the driver if the vehicle may
deviate from the current
lane or course
*, and also
can slightly operate the
steering wheel to help avoid
deviation from the lane or
course
*. Also, while the
dynamic radar cruise con-
trol with full-speed range
( P.366) is operating, this
system will operate the
steering wheel to maintain
the vehicle’s lane position.
The LTA system recognizes
white (yellow) lane lines or a
course
* using the front cam-
era. Additionally, it detects
preceding vehicles using
the front camera and radar.
*: Boundary between asphalt and the side of the road, such as
grass, soil, or a curb

3525-5. Using the driving support systems
WARNING
■Before using LTA system
●Do not rely solely upon the LTA
system. The LTA system does
not automatically drive the vehi-
cle or reduce the amount of
attention that must be paid to
the area in front of the vehicle.
The driver must always assume
full responsibility for driving
safely by paying careful atten-
tion to the surrounding condi-
tions and operating the steering
wheel to correct the path of the
vehicle. Also, the driver must
take adequate breaks when
fatigued, such as from driving
for a long period of time.
●Failure to perform appropriate
driving operations and pay care-
ful attention may lead to an
accident, resulting in death or
serious injury.
■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 sur-
face which is slippery due to
rainy weather, fallen snow,
freezing, etc.
●Vehicle is driven on a snow-cov-
ered 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 construc-
tion zone.
●A spare tire, tire chains, etc. are
equipped.
●When the tires have been
excessively worn, or when the
tire inflation p ressure is low.
●When your vehicle is towing a
trailer or during emergency tow-
ing
■Preventing LTA system mal-
functions and operations per-
formed 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, do
not install a gr ille guard (bull
bars, kangaroo bar, etc.).
●If your windshield needs
repairs, contact your Toyota
dealer.
■Conditions in which functions
may not operate properly
In the following situations, the
functions may not operate prop-
erly and the vehicle may depart
from its lane. Drive safely by
always paying careful attention to
your surroundings and operate
the steering wheel to correct the
path of the vehicle without relying
solely on the functions.

3545-5. Using the driving support systems
WARNING
●The vehicle is driven in an area
without white (yellow) lines,
such as in front of a tollgate or
checkpoint, or at an intersec-
tion, etc.
●The white (yellow) lines are
cracked, “Botts’ dots”, “Raised
pavement 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 mo re difficult to
recognize 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.
●If the edge of the road is not
clear or straight.
●The vehicle is driven on a sur-
face that is bright due to
reflected light, etc.
●The vehicle is driven in an area
where the brightness changes
suddenly, such as at the
entrances and exits of tunnels,
etc.
●Light from the h eadlights 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 wind-
ing 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
or having improper tire pres-
sure.
●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 roads or road seams).
●When driving in a tunnel or at
night with the headlights off or
when a headlight is dim due to
its lens being dir ty or it being
misaligned.
●The vehicle is struck by a cross-
wind.
●The vehicle is affected by wind
from a vehicle driven in a
nearby lane.
●The vehicle has just changed
lanes or crossed an intersec-
tion.
●Tires which differ by structure,
manufacturer, brand or tread
pattern are used.
●When tires of a size other than
specified are installed.
●Snow tires, etc . are equipped.
●The vehicle is b eing driven at
extremely high speeds.

3695-5. Using the driving support systems
5
Driving
This mode employs a radar to detect the presence of vehicles up to
approximately 328 ft. (100 m) ahead, determines the current vehicle-
to-vehicle following distance, and operates to maintain a suitable fol-
lowing distance from the vehicle ahead. The desired vehicle-to- vehi-
cle distance can also be set by operating the vehicle-to-vehicl e
distance switch.
When driving on downhill slopes, t he vehicle-to-vehicle distance may
become shorter.
Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver.
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 runni ng ahead of you, the system automatically
decelerates your vehicle. When a greater reduction in vehicle s peed is nec-
essary, the system applies the brakes (the stop lights will come on at this
time). The system will respond to changes i n the speed of the vehicle
ahead in order to maintain the ve hicle-to-vehicle distance set by the driver.
Approach warning warns you when the system cannot decelerate suffi-
ciently to prevent your vehicle from closing in on the vehicle ahead.
When the vehicle ahead of you st ops, your vehicle will also stop (vehicle is
stopped by system control). Afte r the vehicle ahead starts off, pressing the
“+RES” switch or depressing the accelerator pedal (start-off operation) will
resume follow-up cruising. If the start-off operation is not performed, system
Driving in vehicle-to-vehicle distance control mode
A
B

3805-5. Using the driving support systems
will be enabled each time the power
switch is turned to ON.
■Outside rear view mirror indica-
tors visibility
In strong sunlight, the outside rear
view mirror indicato r may be difficult
to see.
■Hearing the RCTA buzzer
The RCTA buzzer may be difficult to
hear over loud noises such as high
audio volume.
■When “Blind Spot Monitor
Unavailable” or “Rear Cross
Traffic Alert Unavailable” is
shown on the multi-information
display
The sensor voltage has become
abnormal, or water, snow, mud,
etc., may be built up in the vicinity of
the sensor area of the rear bumper.
(  P.380)
Removing the water, snow, mud,
etc., from the vicinity of the sensor
area should retur n it to normal.
Also, the sensor may not function
normally when used in extremely
hot or cold weather.
■When “Blind Spot Monitor Mal-
function Visit Your Dealer” or
“Rear Cross Traffic Alert Mal-
function Visit Your Dealer” is
shown on the multi-information
display
There may be a sensor malfunction
or misaligned. Have the vehicle
inspected at a Toyota dealer.
■Customization
Some functions can be customized.
(  P.191, 203)
WARNING
■To ensure the system can
operate properly
Blind Spot Monitor sensors are
installed inside t he left and right
sides of the rear bumper respec-
tively. Observe the following to
ensure the Blind Spot Monitor can
function correctly.
●Keep the sensors 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 covered with snow, the Blind
Spot Monitor may not operate
and a warning message
(  P.380) will be displayed. In
this situation, clear off the dirt or
snow and drive the vehicle with
the operation conditions of the
BSM function ( P.382) satis-
fied for approximately 10 min-
utes. If the warning message
does not disappear, have the
vehicle inspected by your
Toyota dealer.
●Do not subject a sensor or its
surrounding area on the rear
bumper to a strong impact.
If a sensor is moved even
slightly off position, the system
may malfunction and vehicles
may not be detected correctly.
In the following si tuations, have
your vehicle inspected by your
Toyota dealer.
• A sensor or its surrounding area is subject to a strong impact.