cruise control TOYOTA PRIUS PLUG-IN HYBRID 2021 User Guide

2603. Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■“Meter Customize” settings ( )
ItemSettingsSetting result
“Screen
OFF”
*1
“Yes”
Turns the multi-information dis-
play off.
“No”
“HV System
Indicator”
(P. 236)“ECO Acceler-
ator Guidance”“On”
Turns the “ECO Accelerator
Guidance” on and off.
“Off”
“EV Indicator
Light On/Off”“On”Turns the EV indicator on and
off.
“Off”
“EV Drive
Monitor”
“EV
Energy”
Switches the information dis-
play in the left upper corner of
the Hybrid System Indicator.
(P. 241)
“EV
Dis-
tance”
“Blank”
“Pop-up Display
On/Off”
“Instrument
Panel Light”
*2
“On”
Turns the pop-up display of the
selected item on the multi-
information display on and off.
“Off”
“Climate
settings”“On”
“Off”
“Cruise
Control
Operation
Display”“On”
“Off”
“HUD
Settings”
*3
“On”
“Off”
“Driving Mode
Select”“On”
“Off”
“Traction
Battery
Cooler”
*3
“On”
“Off”

2653. Instrument cluster
3
Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Meter control switches
These switches are used when adjusting the display position and bright-
ness of the head-up display. (P. 267)
“HUD” (Head-up display) switch (P. 266)
Vehicle speed display
Right-hand drive vehicles:
The speed unit appears under the vehicle speed display.
Cruise control display (P. 451)
Hybrid System Indicator (P. 236)
The display contents of the Hybrid System Indicator are different in EV
mode and HV mode.
EV driving range
Indicates the estimated distance that can be driven using the current
remaining hybrid battery (traction battery).
(P. 1 1 9 )
When the air conditioning system is operating, the driving range with the
air conditioning system on is displayed.
The EV driving range may shorten even when not driving due to power
consumption by the system.
Insert display (P. 2 6 8)
This display inserts information from each driving support system accord-
ing to driving conditions.
1
2
3
4
5
6
7

2663. Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
The “HUD” switch can be used to turn the head-up display on and off,
or switch the display contents.
■When the head-up display is off
Pressing the “HUD” switch
turns the head-up display on
and starts the display.
The indicator light on the “HUD”
switch comes on.
The display position and bright-
ness adjustment screen is auto-
matically displayed on the multi-
information display. (P. 267)
■
When the head-up display is on
Display items can be switched by pressing the “HUD” switch.
Vehicle speed display and
cruise control display
*1
Vehicle speed display/Hybrid
System Indicator
*1, 2/EV driv-
ing range
Refer to P. 236 for details of the
Hybrid System Indicator.
No display (head-up display
is off)
The indicator light on the “HUD”
switch turns off.
*1: When the insert display of each
driving support system is dis-
played, the display is temporar-
ily turned off.
*2: The display contents of the
Hybrid System Indicator are dif-
ferent in EV mode and HV
mode.
“HUD” (Head-up display) switch
1
2
3

2683. Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Insert displays of the driving support systems
Insert displays are linked with the operation of the following sys-
tems and used to show some of the information shown on the multi-
information display on the head-up display.
*: If equipped
■
Master warning light insert display
When the master warning light
(P. 717) is illuminated or
flashing, an insert display is
shown on the head-up display
to inform the driver.
When the master warning light
is illuminated or flashing, check
the message displayed on the
multi-information display and
perform the corresponding trou-
bleshooting procedure.
(P. 723)
Right-hand drive vehicles:
The master warning light display appears under the vehicle speed dis-
play.
Insert display
SystemDisplayed information
PCS (Pre-Collision System) (P. 418)Pre-collision warning
LTA (Lane Tracing Assist) (P. 429)
Lane departure alert function
display
Hands off steering wheel warn-
ing
Vehicle sway warning function
display
Dynamic radar cruise control with full-
speed range (P. 451)Approach warning display
RSA (Road Sign Assist) (P. 445)Road signs, supplemental mark,
etc.
Parking Support Brake function*
(P. 510)Operation display
(symbol display)

357
5Driving
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
5-1. Before driving
Driving the vehicle ............. 358
Cargo and luggage ............ 370
Trailer towing ..................... 372
5-2. Driving procedures
Power (ignition) switch ....... 373
Hybrid transmission ........... 379
Turn signal lever ................ 385
Parking brake .................... 386
5-3. Operating the lights
and wipers
Headlight switch ................ 387
AHS (Adaptive High-beam
System) ........................... 391
Fog light switch .................. 397
Windshield wipers and
washer ............................. 398
5-4. Refueling
Opening the fuel tank
cap ................................... 4015-5. Using the driving
support systems
Toyota Safety Sense ......... 405
PCS (Pre-Collision
System) ........................... 418
LTA (Lane Tracing
Assist) .............................. 429
RSA (Road Sign Assist)..... 445
Dynamic radar cruise
control with full-speed
range ............................... 451
Driving mode select
switch............................... 468
Speed limiter ...................... 470
BSM
(Blind Spot Monitor) ......... 473
• The Blind Spot Monitor
function .......................... 489
• The Rear Crossing
Traffic Alert function ...... 493
Toyota parking
assist-sensor ................... 499
Parking Support Brake
function ............................ 510
S-IPA (Simple Intelligent
Parking Assist
System) ........................... 523
GPF (Gasoline Particulate
Filter) system ................... 558
Driving assist systems ....... 559
5-6. Driving tips
Winter driving tips .............. 566

3605-1. Before driving
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Restraining the hybrid system output (Brake Override System)
●When the accelerator and brake pedals are depressed at the same time, the
hybrid system output may be restrained.
●A warning message is displayed on the multi-information display while the
system is operating. (P. 729)
■“ECO Accelerator Guidance” (P. 239)
It is easier to drive in an Eco-friendly manner by driving while referring to the
“ECO Accelerator Guidance” display. Also, by using the “ECO Accelerator
Guidance”, it is easier to increase the Eco score evaluation.
●When starting off:
While staying within the “ECO Accelerator Guidance” range, gradually
depress the accelerator pedal and accelerate to the desired speed. If exces-
sive acceleration is avoided, the “Eco-Start” score will increase.
●When driving:
After accelerating to the desired speed, release the accelerator pedal and
drive at a stable speed within the “ECO Accelerator Guidance” range. By
keeping the vehicle within the “ECO Accelerator Guidance” range, the “Eco-
Cruise” score will increase.
●When stopping:
When stopping the vehicle, early releasing the accelerator pedal will cause
the “Eco-Stop” score to increase.
■Restraining sudden start (Drive-Start Control)
●When the following unusual operation is performed, the hybrid system out-
put may be restrained.
• When the shift position is shifted from R to D/B, D/B to R, N to R, P to D/
B
*, P to R* with the accelerator pedal depressed, a warning message
appears on the multi-information display. If a warning message is shown
on the multi-information display, read the message and follow the instruc-
tions.
• When the accelerator pedal is depressed too much while the vehicle is in
reverse.
●While Drive-Start Control is being activated, your vehicle may have trou-
ble escaping from the mud or fresh snow. In such case, deactivate TRC
(P. 561) to cancel Drive Start Control so that the vehicle may become
able to escape from the mud or fresh snow.
*: Depending on the situation, the shift position may not be changed.

3825-2. Driving procedures
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Reverse warning buzzer
When shifting into R, a buzzer will sound to inform the driver that the shift
position is in R.
■Restraining sudden start (Drive-Start Control)
P. 360
■Automatic P position selection function
●If the power switch is on and the shift position is not already P, completely
stopping the vehicle and pressing the power switch causes the shift position
to automatically switch to P and the power switch to turn off
*.
●The shift position may also automatically switch to P if one of the following
conditions is detected while the vehicle is stopped by dynamic radar cruise
control with full-speed range.
• Driver’s seat belt is not fastened
• Driver’s door is opened
• Approximately 3 minutes elapse after the vehicle stopped
*: If the power switch is pressed when driving at very low speeds (for exam-
ple, just before the vehicle stops), the shift position may automatically
switch to P. Press the power switch after completely stopping the vehicle to
prevent unexpected sudden stopping of the vehicle.
■If the shift position cannot be shifted from P
There is a possibility that the 12-volt battery is discharged. Check the 12-volt
battery in this situation. (P. 755)
■About engine braking
When shift position B is selected, releasing the accelerator pedal will apply
engine braking.
●When the vehicle is driven at high speeds, compared to ordinary gasoline-
fueled vehicles, the engine braking deceleration is felt less than that of other
vehicles.
●The vehicle can be accelerated even when shift position B is selected.
If the vehicle is driven continuously in the B position, fuel efficiency will
become low. Usually, select the D position.
■After recharging/reconnecting the 12-volt battery
P. 645

4055-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
5
Driving
Toyota Safety Sense
◆PCS (Pre-Collision System)
 P. 4 1 8
◆LTA (Lane Tracing Assist)
 P. 4 2 9
◆AHS (Adaptive High-beam System)
 P. 3 9 1
◆RSA (Road Sign Assist)
 P. 4 4 5
◆Dynamic radar cruise control with full-speed range
 P. 4 5 1
The Toyota Safety Sense consists of the following drive assist
systems and contributes to a safe and comfortable driving expe-
rience:
Driving assist system
WARNING
■ Toyota Safety Sense
The Toyota Safety Sense is designed to operate under the assumption that
the driver will drive safely, and is designed to help reduce the impact to the
occupants and the vehicle in the case of a collision or assist the driver in
normal driving conditions.
As there is a limit to the degree of recognition accuracy and control perfor-
mance that this system can provide, do not overly rely on this system. The
driver is always responsible for paying attention to the vehicle’s surround-
ings and driving safely.

4295-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
5
Driving
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 control with full-speed range 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 camera. Addition-
ally, 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
Summary of functions

4365-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Lane centering function
This function is linked with
dynamic radar cruise control
with full-speed range and pro-
vides the required assistance
by operating the steering wheel
to keep the vehicle in its current
lane.
When dynamic radar cruise con-
trol with full-speed range is not
operating, the lane centering
function does not operate.
In situations where the white
(yellow) lane lines are difficult to
see or are not visible, such as
when in a traffic jam, this func-
tion will operate to help follow a
preceding vehicle by monitoring
the position of the preceding
vehicle.
If the system detects that the steering wheel has not been operated for
a fixed amount of time or the steering wheel is not being firmly gripped,
a warning is displayed on the multi-information display and the function
is temporarily canceled.