2023 TOYOTA PRIUS PRIME cruise control

3515-5. Using the driving support systems
5
Driving
■Operating conditions of the
function
This function is operable when all of
the following conditions are met:
●The system detects lane lines and
the path of preceding or surround-
ing vehicles.
●The dynamic radar cruise control
and the lane tracing assist are
operating.
●The turn signal lever is not being
operated.
●The vehicle is not being driven
around a sharp curve.
●The vehicle is being driven in the
center of a lane.
●The driver monitor camera is
detecting that the driver is facing
front of the vehicle.
●The vehicle is driving in traffic jam
on a highway or expressway at
approximately 25 mph (40 km/h)
or less. (In some situations, such
as when a traffic jam starts, this
function may be operational at
approximately 20 mph (30 km/h)
or less.)
●It is necessary to enter a con-
nected services contract, provided
by Toyota, to use these functions.
For details, contact your Toyota
dealer.
●The driver’s door is closed.
●The driver’s seat belt is fastened.
●Customized setting of the Traffic
Jam Assist is not set to off.
●Functions and components com-
posing the system are in proper
condition.
●Customized setting of the PCS (Pre-Collision System) is not set
to off.
●Customized setting of the dynamic
radar cruise control (re-start time
extension) is not set to off.
■Temporary cancelation of the
function
●When the operating conditions are
no longer met, a function may be
temporarily canceled. However,
when the operation conditions are
met again, operation of the func-
tion will automatically be restored.
●If the operating conditions of a
function are no longer met while
the function is operating, a buzzer
may sound with a display to indi-
cate that the function has been
temporarily canceled. If no driver’s
responses to the
indication are
detected, the driver emergency
stop assist function may operate.
For types of display and action to
be taken, see the page mentioned
below. ( P.352)
■Driving operations during con-
trolled driving:
●Accelerator pedal
As with normal driving, acceleration
can be performed by depressing the
accelerator pedal. When the accel-
erator pedal is depressed at approx-
imately 10 km/h (6 mph) or more,
this function will be canceled.
●Brake pedal
As with normal driving, deceleration
can be performed by depressing the
brake pedal. However, controlled
driving will be cancelled.
●Steering wheel
As with normal driving, the steering
wheel can be operated. If the steer-
ing wheel is operated more than a
certain amount, controlled driving
will be cancelled.
WARNING
■Front camera installation area
on the windshield
 P.288

3525-5. Using the driving support systems
■When a warning message is
displayed
●“Traffic Jam Asst System Malfunc-
tion Visit Your Dealer”
The Traffic Jam Assist function may
not be operating properly.
●“Traffic Jam Asst Unavailable
Stop Assist Activated”
The system temporarily cannot be
used as the driver emergency stop
assist function has operated.
 The setting of Traffic Jam
Assist can be enabled/dis-
abled through a customize
setting. ( P.628)
 The setting of driver monitor
camera recording can be
enabled/disabled through a
customize setting. ( P.628)
The following displays indicate the operating status of the Traffic
Jam Assist function:
Changing Traffic Jam
Assist settings
Display and system operation
DisplayStatusAction to be taken
Traffic Jam Assist function is operating
Gray
Traffic Jam Assist function is about to end
Hold the
steering
wheel.
Orange
Traffic Jam Assist function has ended
Hold the
steering
wheel.
Red
Operation of either or both of dynamic radar
cruise control/LTA ( Lane Tracing Assist)
ended
Manually
operate the
steering
wheel imme-
diately.

4015-5. Using the driving support systems
5
Driving
unclear
• When the appearance of the park- ing space is affected by the
shadow of the vehicle or trees
■Sensor detection information
 P.365
■Objects which the sensor may
not be properly detected
 P.366
■Situations in which the sensor
may not operate properly
 P.366
■Situations in which parking
assistance may not operate
even if there is no possibility of
a collision
 P.367
Press the Advanced Park main
switch.
If the switch is pressed while assis-
tance is being performed, the assis-
tance will be canceled.
■Operating conditions of the
Advanced Park
Assistance will begin when all of the
following conditions are met:
●The brake pedal is depressed
●The vehicle is stopped
●The driver’s seat belt is fastened
●The steering wheel is not being
operated
●The accelerator pedal is not
depressed
●All of the doors and the back door
are closed
●The outside rear view mirrors are
not folded
●The parking brake is not engaged
●The dynamic radar cruise control
are not operating
●ABS, VSC, TRAC, PCS and
PKSB are not operating
●The vehicle is not on a steep
WARNING
■Precautions for the cameras
and sensors
●Due to the characteristics of the
camera lens, the position of and
distance to people and objects
displayed on the screen may
differ from the actual situation.
For details, refer to “MULTIME-
DIA OWNER’S MANUAL”.
●Make sure to observe the pre-
cautions for using the intuitive
parking assist, otherwise a sen-
sor may not operate correctly,
possibly leading to an accident.
(  P.364)
●In situations such as the follow-
ing, the sensors may not oper-
ate correctly, possibly leading to
an accident. Proceed carefully.
• When there is a parked vehicle next to the target parking space,
if the displayed target parking
space is far from the actual tar-
get parking space, a sensor
may be misaligned. Have the
vehicle inspected by your
Toyota dealer.
• Do not install any accessories near the detection area of the
sensors.
Turning the Advanced
Park system on/off

4486-2. Using the interior lights
■Turning the rear personal
lights on/off
Press the switch.
Each time the switch is pressed,
the rear personal light turns on/off.
If the light is turned on by the inte-
rior lights, the rear personal light
cannot turn off by pressing the
switch.
■When front personal light
switch does not respond as
normal
●When water, dirt, etc., have
adhered to the switch surface
●When operated with a wet hand
●When wearing gloves, etc.
Under the following conditions,
the instrument panel ornament
lights blink 2 times to notify the driver.
■Preceding vehicle start
notification
Notifies when the preceding
vehicle starts off or accelerates
while stopped behind the pre-
ceding vehicle.
This function may also operate
while driving at extremely slow
speeds immediately before stop-
ping the vehicle.
■PDA (Proactive Driving
Assist) linked notifications
Notifies when PDA (Proactive
Driving Assist) has detected an
operation target. ( P.320)
■Operation description of illumi-
nation notification
●PDA (Proactive Driving Assist)
linked notifications do not operate
when PDA (Proactive Driving
Assist) is disabled through a cus-
tomize setting. (P.320)
●When the preceding vehicle is
close in distance from the vehicle
while stopped, the timing for noti-
fying that the preceding vehicle
has started off may be delayed.
●This function does not operate
when the front ca mera or front
radar sensor does not operate
properly such as during bad
weather.
●When the proceeding vehicle
starts off within approximately 3
seconds after the vehicle is
stopped, the illumi nation notifica-
tion does not operate. However,
the illumination notification oper-
ates and follow-up cruising
resumes if dynamic radar cruise
control is in use.
Illumination notification (if
equipped)

5598-2. Steps to take in an emergency
8
When trouble arises
■PDA indicator (warning buzzer)
■Cruise control indicator (warning buzzer)
■Dynamic radar cruise control indicator (warning buzzer)
■Driving assist information indicator
Warning lightDetails/Actions
(Yellow)
Indicates a malfunction in the PDA (Proactive
Driving Assist).
Follow the instructions displayed on the
multi-information display.
Warning lightDetails/Actions
(Yellow)
Indicates a malfunction in the cruise control sys-
tem.
Follow the instructions displayed on the
multi-information display.
Warning lightDetails/Actions
(Yellow)
Indicates a malfunction in the dynamic radar
cruise control system.
Follow the instructions displayed on the
multi-information display.
Warning lightDetails/Actions
Indicates one of the following systems is mal-
functioning.
PCS (Pre-Collision System)
 LDA (Lane Departure Alert)
 Follow the instructions displayed on the
multi-information display.
Indicates one of the following systems is mal-
functioning or disabled.
 PKSB (Parking Support Br ake) (if equipped)
 RCD (Rear Camera Detection) (if equipped)
 BSM (Blind Spot Monitor) (if equipped)
 RCTA (Rear cross traffic alert) (if equipped)
 Safe Exit Assist (if equipped)
 Follow the instructions displayed on the
multi-information display.

5678-2. Steps to take in an emergency
8
When trouble arises
*: A buzzer sounds the first time a message is shown on the multi-informa-tion display.
■Warning messages
The warning messages explained
below may differ from the actual
messages according to operation
conditions and vehicle specifica-
tions.
■If a message about an operation
is shown
●If a message about an operation
of the accelerator pedal or brake
pedal is shown
• A warning message about an
operation of the brake pedal may
be shown while the driving assist
systems such as PCS (Pre-Colli-
sion system) or the dynamic radar
cruise control is operating. If a
warning message is shown, be
sure to decelerate the vehicle or
follow an instruction shown on the
multi-informat ion display.
• A warning message is shown when Brake Override System
operates. (
P.240, 573)
• A warning message is shown when Drive-Start Control or Park-
ing Support Brake (if equipped)
(  P.245, 382) operates. Follow
the instructions on the multi-infor-
mation display.
●If a message about an operation
of the power switch is shown
An instruction for operation of the
power switch is shown when the
incorrect procedure for starting the
hybrid system is performed or the
power switch is operated incorrectly.
Follow the instructions shown on the
multi-information display to operate
the power switch again.
●If a message about a shift lever
operation is shown
Warning lightWarning
buzzer
*Warning
Sounds
 Indicates an important situation, such as
when a system related to driving is mal-
functioning or that danger may result if
the correction procedure is not per-
formed
 Indicates a situation, such as when dam-
age to the vehicle or danger may result
Comes on or
flashesSounds
Indicates an important situation, such as
when the systems shown on the multi-
information display ma y be malfunctioning
Does not
sound
 Indicates a condition, such as malfunc-
tion of electrical components, their con-
dition, or indicates the need for
maintenance
 Indicates a situation, such as when an
operation has been performed incor-
rectly, or indicates how to perform an
operation correctly

5698-2. Steps to take in an emergency
8
When trouble arises
shift position is in N, shift the shift
position to P when the vehicle is
stopped.
■If “Hybrid System Overheated
Output Power Reduced” is
shown
The message may be shown when
driving under severe operating con-
ditions. (For example, when driving
up a long steep hill or driving up a
steep hill in reverse.)
Coping method: P.595
■If “Traction battery needs to be
protected. Shift into P to
restart.” is shown
This message is displayed when the
hybrid battery (traction battery)
charge has become extremely low
because the shift position has been
left in N for a certain amount of time.
When operating the vehicle, shift to
P and restart the hybrid system.
■If “Shift is in N Release Acceler-
ator Before Shifting” is shown
Message is displayed when the
accelerator pedal has been
depressed and the shift position is in
N. Release the accelerator pedal
and shift the shift position to D or R.
■If “Press brake when vehicle is
stopped Hybrid system may
overheat” is shown
Message is displayed when the
accelerator pedal is depressed to
maintain the vehicle position when
stopped on a upward slope, etc.
If this continues, the hybrid system
may overheat.
Release the accelerator pedal and
depress the brake pedal.
■If “Shift System Malfunction
Shifting Unavailable Drive to a
Safe Place and Stop” or “Shift
System Malfunction Driving
Unavailable” is displayed
There is a malfunction in the shift
control system. Have the vehicle
inspected by your Toyota dealer immediately.
■If “Auto Power OFF to Conserve
Battery” is shown
Power was turned off due to the
automatic power off function.
Next time when starting the hybrid
system, operate the hybrid system
for approximately 5 minutes to
recharge the 12-volt battery.
■If “Parking Assist Unavailable
Low Visibility See Owner’s Man-
ual” is displayed
Indicates one of the following sys-
tems is disabled.
● RCD (Rear Camera Detec-
tion) (if equipped)
● PKSB (Parking Support
Brake) (if equipped)
Remove any dirt or foreign matter
from the rear cameras.
■If “System Malfunction Visit
Your Dealer” is displayed
Indicates one of the following sys-
tems is disabled.
●PCS (Pre-Collision System)
●LDA (Lane Departure Alert)
●LTA (Lane Tracing Assist)
● LCA (Lane Change Assist) (if
equipped)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
● RSA (Road Sign Assist) (if
equipped)
●PDA (Proactive Driving Assist)
● BSM (Blind Spot Monitor) (if
equipped)
● RCTA (Rear Cross Traffic
Alert) (if equipped)
●Safe Exit Assist (if equipped)

5708-2. Steps to take in an emergency
●Intuitive Parking Assist
● PKSB (Parking Support
Brake) (if equipped)
● RCD (Rear Camera Detec-
tion) (if equipped)
Have the vehicle inspected by your
Toyota dealer immediately.
■If “System Stopped See
Owner’s Manual” is displayed
Indicates one of the following sys-
tems is disabled.
●PCS (Pre-Collision System)
●LDA (Lane Departure Alert)
●LTA (Lane Tracing Assist)
● LCA (Lane Change Assist) (if
equipped)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
● RSA (Road Sign Assist) (if
equipped)
●PDA (Proactive Driving Assist)
● BSM (Blind Spot Monitor) (if
equipped)
● RCTA (Rear Cross Traffic
Alert) (if equipped)
●Safe Exit Assist (if equipped)
●Intuitive Parking Assist
● PKSB (Parking Support
Brake) (if equipped)
● RCD (Rear Camera Detec-
tion) (if equipped)
Follow the following correction
methods.
• Check the voltage of the 12-volt battery
• Check the sensors that the Toyota Safety Sense 3.0 uses for foreign
matter covering them. Remove them if any. (
P.285)
• Vehicles with RCD (Rear Camera Detection): Check if the back door
is open.
Indicates the sensors may not be
operating properly. ( P.289, 358,
362, 366, 376, 380)
• Check the rear bumper around the sensors used by the BSM (if
equipped), RCTA (if equipped) or
Safe Exit Assist (if equipped) for
foreign matter co vering them.
Remove them if any. ( P.355)
• Check the sensors including cam-
era sensors used by the Intuitive
parking assist, or PKSB (if
equipped), or RCD (if equipped)
for foreign matter covering them.
Remove them if any. ( P.342)
• When problems are solved and
the sensors are operational, this
indication may disappear by itself.
■If “System Stopped Front Cam-
era Low Visibility See Owner’s
Manual” is displayed
Indicates one of the following sys-
tems is disabled.
●PCS (Pre-Collision System)
●LDA (Lane Departure Alert)
●LTA (Lane Tracing Assist)
● LCA (Lane Change Assist) (if
equipped)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
● RSA (Road Sign Assist) (if
equipped)
●PDA (Proactive Driving Assist)
Follow the following correction
methods.
• Using the windshield wipers, remove the dirt or foreign matter
from the windshield.
• Using the air conditioning system,
defog the windshield.
• Close the hood, remove any stick- ers, etc. to clear the obstruction in