2022 TOYOTA PRIUS PLUG-IN HYBRID air condition

3385-3. Operating the lights and wipers
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
This system allows the headlights and front position lights to be turned
on for 30 seconds when the power switch is off.
Pull the lever toward you and
release it with the light switch in
the position after turning
the power switch off.
Pull the lever toward you and
release it again to turn off the
lights.
Q Daytime running light system
To make your vehicle more visible to other drivers during dayti me driving, the
daytime running lights turn on automatically whenever the hybri d system is
started and the parking brake is released with the headlight sw itch in the
position. Daytime running lights are not designed for use at n ight.
Q Headlight control sensor
Extended Headlight Lighting system
IO53PH031
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the
windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight sys-
tem to malfunction.
Air conditioning operation may also be interrupted.

3395-3. Operating the lights and wipers
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
QAutomatic light off system
O When the light switch is in the or position: The headlights turn
off automatically if the power switch is turned to ACCESSORY mo de or
turned off.
O When the light switch is in the position: The headlights and all lights
turn off automatically if the power switch is turned to ACCESSORY mode or
turned off.
To turn the lights on again, turn the power switch to ON mode, or turn the light
switch to the position once and then back to the or posi-
tion.
Q Automatic headlight leveling system
The level of the headlights is automatically adjusted according to the number
of passengers and the loading condition of the vehicle to ensur e that the
headlights do not interfere with other road users.
Q Light reminder buzzer
A buzzer sounds when the power switch is turned off and the dri ver’s door is
opened while the lights are turned on.
Q 12-volt battery-saving function
In order to prevent the vehicle 12-volt battery from dischargin g, if the light
switch is in the position when the power switch turned off the 12-volt
battery saving function will operate and automatically turn off all the lights
after approximately 20 minutes.
When any of the following are performed, the 12-volt battery-sa ving function
is canceled once and then reactivated. All the lights will turn off automatically
20 minutes after the 12-volt battery-saving function has been r eactivated:
O When the headlight switch is operated
O When a door is opened or closed
Q If “Headlight System Malfunction Visit Your Dealer” is displayed on the
multi-information display
The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized repairer, or any rel iable repairer.
Q Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: P. 724)

3665-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)QIf a warning message is displayed on the multi-information display
A system may be temporarily unavailable or there may be a malfunction in
the system.
OIn the following situations, perform the actions specified in the table. When
the normal operating conditions are detected, the message will disappear
and the system will become operational.
If the message does not disappear, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
SituationActions
When the area around a cam-
era is covered with dirt, mois-
ture (fogged up, covered with
condensation, ice, etc.), or
other foreign matter
Using the wiper and A/C function,
remove the dirt and other attached mat-
ter. (P. 527)
When the temperature around
the front camera is outside of
the operational range, such as
when the vehicle is in the sun or
in an extremely cold environ-
ment
If the front camera is hot, such as after
the vehicle had been parked in the sun,
use the air conditioning system to
decrease the temperature around the
front camera.
If a sunshade was used when the vehi-
cle was parked, depending on its type,
the sunlight reflected from the surface
of the sunshade may cause the tem-
perature of the front camera to become
excessively high.
If the front camera is cold, such after the
vehicle is parked in an extremely cold
environment, use the air conditioning
system to increase the temperature
around the front camera.
The area in front of the front
camera is obstructed, such as
when the hood is open or a
sticker is attached to the part of
the windshield in front of the
front camera.
Close the hood, remove the sticker, etc.
to clear the obstruction.
When “Pre-Collision System
Unavailable” is displayed.Check whether there is attached materi-
als on the radar sensor and radar sensor
cover, and if there is, remove it.

3675-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
OIn the following situations, if the situation has changed (or the vehicle has
been driven for some time) and the normal operating conditions are
detected, the message will disappear and the system will become opera-
tional.
If the message does not disappear, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
• When the temperature around the radar sensor is outside of the opera-
tional range, such as when the vehicle is in the sun or in an extremely
cold environment
• When the front camera cannot detect objects in front of the vehicle, such
as when driving in the dark, snow, or fog, or when bright lights are shining
into the front camera
• Depending on the conditions in the vicinity of the vehicle, the radar may
judge the surrounding environment can not be properly recognized. In
that case, “Pre-Collision System Unavailable” is displayed.

3805-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
WARNING
QBefore using LTA system
O Do not rely solely upon the LTA system. The LTA system does not auto-
matically drive the vehicle or reduce the amount of attention t hat must be
paid to the area in front of the vehicle. The driver must always assume full
responsibility for driving safely by paying careful attention t o the surround-
ing conditions and operating the steering wheel to correct the path of the
vehicle. Also, the driver must take adequate breaks when fatigu ed, such
as from driving for a long period of time.
O Failure to perform appropriate driving operations and pay careful attention
may lead to an accident, resulting in death or serious injury.
O When not using the LTA system, use the LTA switch to turn the system off.
Q Situations unsuitable for LTA system
In the following situations, use the LTA switch to turn the sys tem off. Failure
to do so may lead to an accident, resulting in death or serious injury.
O Vehicle is driven on a road surface which is slippery due to rainy weather,
fallen snow, freezing, etc.
O Vehicle is driven on a snow-covered road.
O White (yellow) lines are difficult to see due to rain, snow, fog, dust, etc.
O Vehicle is driven in a temporary lane or restricted lane due to construction
work.
O Vehicle is driven in a construction zone.
O A spare tire, tire chains, etc. are equipped.
O When the tires have been excessively worn, or when the tire inflation pres-
sure is low.
O During emergency towing.
Q Preventing LTA system malfunctions and operations performed by
mistake
O Do not modify the headlights or place stickers, etc. on the surface of the
lights.
O Do not modify the suspension etc. If the suspension etc. needs to be
replaced, contact any authorized Toyota retailer or Toyota auth orized
repairer, or any reliable repairer.
O Do not install or place anything on the hood or grille. Also, do not install a
grille guard (bull bars, kangaroo bar, etc.).
O If your windshield needs repairs, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.

4155-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
QAutomatic cancelation of constant speed control mode
Constant speed control mode is automatically canceled in the following situa-
tions:
OActual vehicle speed is more than approximately 16 km/h (10 mph) below
the set vehicle speed.
OActual vehicle speed falls below approximately 30 km/h (20 mph).
OVSC is activated.
OTRC is activated for a period of time.
OWhen the VSC or TRC system is turned off.
OWhen the brake control or output restriction control of a driving support sys-
tem operates.
(For example: Pre-Collision System, Drive-Start Control)
If constant speed control mode is automatically canceled for any reasons
other than the above, there may be a malfunction in the system. Contact any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
QThe Dynamic Radar Cruise Control with Road Sign Assist may not oper-
ate properly when
As the Dynamic Radar Cruise Control with Road Sign Assist may not oper-
ate properly in conditions in which RSA may not operate or detect correctly
(P. 399), when using this function, make sure to check the speed limit
sign displayed.
In the following situations, the set speed may not be changed to the recog-
nized speed limit by pushing the lever up or down.
OIf speed limit information is not available
OWhen the recognized speed limit is the same as the set speed
OWhen the recognized speed limit is outside of the speed range that the
dynamic radar cruise control system can operate
QBrake operation
A brake operation sound may be heard and the brake pedal response may
change, but these are not malfunctions.
QWarning 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 caution while driving. If a warning message
is shown on the multi-information display, read the message and follow the
instructions. (P. 366, 665)

4195-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
Normal mode
Suitable for normal driving.
When normal mode is selected, the “ECO MODE” and “PWR MODE”
indicators turn off.
Power mode
Suitable for when crisp handling and enhanced accelerator
response are desired, such as when driving on mountainous roads.
When power mode is selected, the “PWR MODE” indicator will illumi-
nate on the main display.
Eco drive mode
Suitable for driving that improves fuel economy by generating
torque in response to accelerator pedal operations more smoothly
than in normal mode.
When Eco drive mode is selected, the “ECO MODE” indicator will illumi-
nate on the main display.
While the air conditioning is being used, the fan speed setting mode will
be changed to “ECO” mode automatically (P. 526), allowing for driving
that leads to even better fuel economy.
QAutomatic deactivation of power mode
OPower mode will be canceled and changed to normal mode automatically
when the power switch is turned off.
OHowever, normal mode and eco drive mode will not be canceled automati-
cally until the switch is pressed, even if the power switch is turned off.
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4495-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
OWhen there are spinning objects near your vehicle such as the fan of an air
conditioning unit
O When water is splashed or sprayed toward the rear bumper, such as from a
sprinkler
O Moving objects (flags, exhaust fumes, large rain droplets or snowflakes, rain
water on the road surface, etc.)
O When the distance between your vehicle and a guardrail, wall, etc., that
enters the detection area is short
O Gratings and gutters
O When a sensor or the area around a sensor is extremely hot or cold
O If the suspension has been modified or tires of a size other than specified
are installed
O If the front of the vehicle is raised or lowered due to the carried load
O When a vehicle passes by the side of
your vehicle
O When a detected vehicle turns while
approaching the vehicle