2023 TOYOTA PRIUS PRIME driver monitor

3535-5. Using the driving support systems
5
Driving
Yellow
Indicates that driving actions are necessary
to cope with cut-in or other behavior of sur-
rounding vehicles
The driver
must operate
the steering
wheel, accel-
erator pedal
and brake
pedal in
accordance
with the sur-
rounding
environment.
Indicates that the recording function of the
driver monitor camera is operational (Blinking
of this icon indicates that recording is under-
going, and constant illumination indicates
ready for recording.)

DisplayStatusAction to be taken

3545-5. Using the driving support systems
*: If equipped
Meter control switches
Turning the Blind Spot Monitor
on/off.
Outside rear view mirror indi-
cators
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 (P.152)
on the detected side will illuminate.
If the turn signal lever is operated
toward the detected side, the out-
side rear view mirror indicator will
flash and a buzzer will sound.
Driving assist information
indicator
Illuminates when the Blind Spot
Monitor is turned off. At this time, a
message will be displayed on the
multi-informat ion display.
■Outside rear view mirror indica-
tor visibility
In strong sunlight, the outside rear
view mirror indicator may be difficult
to see.
■Buzzer
If the volume setting of the audio
system is high or the surrounding
area is loud, it may be difficult to
BSM (Blind Spot Moni-
tor)*
The Blind Spot Monitor is a
system that uses rear side
radar sensors installed on
the inner side of the rear
bumper on the left and right
side to assist the driver in
confirming safety when
changing lanes.
WARNING
■Cautions regarding the use of
the system
●The driver is solely responsible
for safe driving. Always drive
safely, taking care to observe
your surroundings.
●The Blind Spot Monitor is a sup-
plementary 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
Blind Spot Monitor. As the func-
tion cannot judge if it is safe to
change lanes, over reliance
could lead to an accident result-
ing in death or serious injury. As
the system may not function
correctly under certain condi-
tions, the driver’s own visual
confirmation of safety is neces-
sary.
System components
A
B
C

3565-5. Using the driving support systems
display.
Each time the power switch is turned to ON, the Blind Spot
Monitor is enabled.
■Objects that can be detected while driving
The Blind Spot Monitor uses rear side radar sensors to detect the
following vehicles trav eling in adjacent lanes and advises the driver
of the presence of such vehicles via the indicators on the outside
rear view mirrors.
Vehicles that are traveling in areas that are not visible using the
outside rear view mirrors (the blind spots)
Vehicles that are approaching r apidly from behind in areas that
are not visible using the outside rear view mirrors (the blind spots)
■Detection range while driving
The areas that vehicles can be detected in are outlined below.
The range of each detection area is:
Approximately 1.6 ft. (0.5 m) to 11.5 ft. (3.5 m) from either side of
the vehicle
*1
Approximately 3.3 ft. (1 m) forward of the rear bumper*2
Blind Spot Monitor operation
A
B
A
B

3745-5. Using the driving support systems
will be displayed on the multi-infor-
mation display.
The RCTA can be enabled/dis-
abled through a customize set-
ting. (P.618)
When the RCTA function is off,
the driving assist information
indicator ( P.152) will illumi-
nate and a message will be dis-
played on the multi-information
display. Each time the power
switch is turned to ON, the
RCTA function is enabled.
■Outside rear view mirror indica-
tor 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 noises, such as if the
audio system volume is high.
■Rear side radar sensors
 P.355
■Operation of the RCTA
function
The RCTA function uses rear
side radar sensors to detect
vehicles approaching from the
right or left at the rear of the
vehicle and alerts the driver of
the presence of such vehicles
by flashing the outside rear view mirror indicators and sounding a
buzzer.
Approaching vehicles
Detection areas of approach-
ing vehicles
■RCTA icon display
When a vehicle approaching
from the right or left at the rear
of the vehicle is detected, the
following will be displayed on
the Multimedia Display.
• Example (Panoramic view monitor): Vehicles are
approaching from both sides
of the vehicle
■RCTA function detection
areas
The areas that vehicles can be
detected in are outlined below.
Turning the RCTA func-
tion on/off
RCTA function
A
B

3855-5. Using the driving support systems
5
Driving
mation display. (P.167)
When the PKSB (Parking Support
Brake) is disabled, the driving
assist information indicator
( P.152) illuminates, and a mes-
sage is displayed on the multi-infor-
mation display.
If the system switches to OFF (dis-
abled) and the PKSB (Parking Sup-
port Brake) is st opped, the PKSB
(Parking Support Br ake) will not be
re-enabled until ON (enabled) is
selected again on the multi-infor-
mation display and the system
operates.
If the system is disabled, it will
remain off even if the power switch
is turned to ON after the power
switch has been turned to OFF.
If the hybrid system output
restriction control or brake con-
trol operates, a buzzer will
sound and a message will be
displayed on the Multimedia
Display and multi-information
display, to alert the driver.
Depending on the situation, hybrid
system output rest riction control will
operate to either limit acceleration
or restrict output as much as possi-
ble.
 Hybrid system output restric-
tion control is operating
(acceleration restriction)
Acceleration greater than a certain amount is restricted by the system.
Multimedia Display (vehicles with
panoramic view monitor): No warn-
ing displayed
Multi-information
display: “Object
Detected Acceleration Reduced”
Driving assist info rmation indicator:
Not illuminated
Buzzer: Does not sound
 Hybrid system output restric-
tion control is operating (out-
put restricted as much as
possible)
The system has determined that
stronger-than-normal brake opera-
tion is necessary.
Multimedia Display (vehicles with
panoramic view monitor): “BRAKE!”
Multi-information display: “BRAKE!”
Driving assist info rmation indicator:
Not illuminated
Buzzer: Short beep
 Brake control is operating
The system determined that emer-
gency braking is necessary.
Multimedia Display (vehicles with
panoramic view monitor): “BRAKE!”
Multi-information display: “BRAKE!”
Driving assist info rmation indicator:
Not illuminated
Buzzer: Short beep
 Vehicle stopped by system
operation
The vehicle has been stopped by
brake control operation.
Multimedia Display (vehicles with
panoramic view monitor): “Press
Brake Pedal”
Display and buzzer for
hybrid system output
restriction control and
brake control

3965-5. Using the driving support systems
*: For details on the panoramic view monitor refer to “MULTIMEDIA
OWNER’S MANUAL”.
■Perpendicular parking (for-
ward/reverse) function
Assistance is provided from the
position the vehicle is stopped
near the target parking space
until the vehicle is in the parking
space. ( P.403)
■Perpendicular exiting (for-
ward/reverse) function
Assistance is provided from the
parked position until the vehicle
is in a position where you can
easily exit from the parking
space. ( P.406)
■Parallel parking function
Assistance is provided from the
position the vehicle is stopped
near the target parking space
until the vehicle is in the parking
space. ( P.408)
■Parallel exiting function
Assistance is provided from the
parked position until the vehicle
is in a position where you can
easily exit from the parking
space. ( P.412)
■Memory function
Assistance is provided until the
vehicle is guided into a previ-
ously registered parking space.
( P.414)
Functions
WARNING
■Cautions regarding the use of
the system
The recognition and control capa-
bilities for this system are limited.
The driver should always drive
safety by always being responsi-
ble without over relying on the
system and have a understanding
of the surrounding situations.
●As with a normal vehicle, take
care to observe your surround-
ings while the vehicle is moving.
●Always pay attention to the
vehicle’s surroundings while the
system is operating and
depress the brake pedal as nec-
essary to slow or stop the vehi-
cle.
●When parking, make sure that
the vehicle can be parked in the
target parking space before
beginning operation.
●Depending on the condition of
the road surface or the vehicle,
the distance between the vehi-
cle and a parking space, etc., it
may not be possible to detect a
parking space or the system
may not be able to provide
assistance to the point the vehi-
cle is fully parked.
●This system will guide the vehi-
cle to appropriate positions for
changing the direction of travel,
however, if you feel that the
vehicle is approaching too close
to an adjacent parked vehicle at
any time, depress the brake
pedal and change the shift posi-
tion. However, if this is per-
formed, the number of times the
vehicle changes direction may
increase, and the vehicle may
be parked at an angle.

5658-2. Steps to take in an emergency
8
When trouble arises
WARNING
As an added safety feature, your
vehicle has been equipped with a
tire pressure monitoring system
(TPMS-tire pressure warning sys-
tem) that illuminates a low tire
pressure telltale (tire pressure
warning light) when one or more
of your tires is significantly under-
inflated. Accordingly, when the
low tire pressure telltale (tire pres-
sure warning light) illuminates,
you should stop and check your
tires as soon as possible, and
inflate them to the proper pres-
sure. Driving on a significantly
under-inflated tire causes the tire
to overheat and can lead to tire
failure. Under-inflation also
reduces fuel efficiency and tire
tread life, and may affect the vehi-
cle’s handling and stopping abil-
ity.
Please note that the TPMS (tire
pressure warning system) is not a
substitute for proper tire mainte-
nance, and it is the driver’s
responsibility to maintain correct
tire pressure, even if under-infla-
tion has not reached the level to
trigger illumination of the TPMS
low tire pressure telltale (tire pres-
sure warning light).
Your vehicle has also been
equipped with a TPMS (tire pres-
sure warning system) malfunc-
tion indicator to indicate when the
system is not operating properly.
The TPMS (tire pressure warning
system) malfunction indicator is
combined with the low tire pres-
sure telltale (tire pressure warning
light). When the system detects a
malfunction, the telltale will flash
for approximately one minute and
then remain continuously illumi-
nated. This sequence will con-
tinue upon subsequent vehicle
start-ups as long as the malfunc-
tion exists. When the malfunction
indicator is illumi nated, the sys-
tem may not be able to detect or
signal low tire pressure as
intended.
TPMS (tire pressure warning sys-
tem) malfunctions may occur for a
variety of reasons, including the
installation of replacement or
alternate tires or wheels on the
vehicle that prevent the TPMS
(tire pressure warning system)
from functioning properly. Always
check the TPMS (tire pressure
warning system) malfunction tell-
tale after replacing one or more
tires or wheels on your vehicle to
ensure that the replacement or
alternate tires and wheels allow
the TPMS (tire pressure warning
system) to continue to function
properly.
NOTICE
■To ensure the tire pressure
warning system operates
properly
Do not install tires with different
specifications or manufacturers
as the tire pressure warning sys-
tem may not operate properly.

5728-2. Steps to take in an emergency
●LDA (Lane Departure Alert)
●LTA (Lane Tracing Assist)
● LCA (Lane Change Assist) (if
equipped)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
●PDA (Proactive Driving Assist)
Follow the following correction
methods.
• Check if there is any foreign mat- ter attached to the radar sensor or
radar sensor cover and clean
them if necessary ( P.286)
• The radar sensor may be mis-
aligned and will be adjusted auto-
matically while driving. Continue
driving for a while.
■If “Unavailable Activation Con-
dition not Satisfied See Owner’s
Manual” is displayed
The LCA function cannot be
used as the operating conditions
have not been met.
Operate the turn signal lever again
after all of the op erating conditions
are met.
■If “Cruise Control Unavailable
See Owner’s Manual” is dis-
played
Indicates one of the following sys-
tems is disabled.
●Dynamic radar cruise control
●Cruise control
A message is displayed when the
driving assist switch is pushed
repeatedly.
Press the driving assist switch
quickly and firmly.
■If “Driver Monitor Out of Tem-
perature Range Wait until Nor-
mal Temperature” is displayed
Indicates one of the following sys-
tems is disabled.
●Driver monitor (if equipped)
●Traffic Jam Assist (if equipped)
The temperature of the driver moni-
tor camera is outside of the operat-
ing range. Wait for the temperature
to become appropriate.
■If “Driver Monitor Unavailable
See Owner’s Manual” is dis-
played
The lens of the driver monitor cam-
era may be dirty.
When there is dirt on the camera
lens, clean it with a dry, soft cloth so
as to not damage it.
■If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level may be low.
Check the level of the engine oil,
and add engine oil if necessary.
(  P.506) This message may be
displayed if the vehicle is stopped
on a slope. Move the vehicle to a
level surface and check if the mes-
sage disappears.
■If “Maintenance Required
Soon” is shown
Indicates that all maintenance
according to the driven distance on
the maintenance schedule
* should
be performed soon.
Comes on approximately 4500
miles (7200 km) after the message
has been reset.
If necessary, perform maintenance.
Please reset the message after the
maintenance is performed.
(  P.495)
*: Refer to the separate “Scheduled
Maintenance Guide” or “Owner’
Manual Supplement” for the main-
tenance interval applicable to your
vehicle.
■If “Maintenance Required Visit
Your Dealer” is shown
Indicates that all maintenance is
required to correspond to the driven