warning light TOYOTA PRIUS PLUG-IN HYBRID 2021 User Guide

401-1. For safe use
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
The main SRS airbag system components are shown above. The
SRS airbag system is controlled by the airbag sensor assembly. As
the airbags deploy, a chemical reaction in the inflators quickly fills the
airbags with non-toxic gas to help restrain the motion of the occu-
pants.
SRS airbag system components
Front impact sensors
SRS warning light and “PAS-
SENGER AIR BAG” indicator
Airbag manual on-off switch
Front passenger airbag
Side impact sensors (front)
Side impact sensors (front
door)
Seat belt pretensioners and
force limiters
Side airbags
Curtain shield airbags
Side impact sensors (rear)
Driver’s seat position sensor
Driver airbag
Driver’s knee airbag
Airbag sensor assembly
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411-1. For safe use
1
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
For safety and security
WARNING
■SRS airbag precautions
Observe the following precautions regarding the SRS airbags.
Failure to do so may cause death or serious injury.
● The driver and all passengers in the vehicle must wear their seat belts
properly.
The SRS airbags are supplemental devic es to be used with the seat belts.
● The SRS driver airbag deploys with considerable force, and can cause
death or serious injury especially if the driver is very close to the airbag.
Since the risk zone for the driver’s airbag is the first 50 - 75 mm (2 - 3 in.)
of inflation, placing yourself 250 mm ( 10 in.) from your driver airbag pro-
vides you with a clear margin of safety. This distance is measured from
the center of the steering wheel to your breastbone. If you sit less than
250 mm (10 in.) away now, you can change your driving position in sev-
eral ways:
• Move your seat to the rear as far as you can while still reaching the ped-
als comfortably.
• Slightly recline the back of the seat. Although vehicle designs vary,
many drivers can achieve the 250 mm (10 in.) distance, even with the
driver seat all the way forward, simply by reclining the back of the seat
somewhat. If reclining the back of your seat makes it hard to see the
road, raise yourself by using a firm, non-slippery cushion, or raise the
seat if your vehicle has that feature.
• If your steering wheel is adjustable, tilt it downward. This points the air-
bag toward your chest instead of your head and neck.
The seat should be adjusted as recommended above, while still maintain-
ing control of the foot pedals, steering wheel, and your view of the instru-
ment panel controls.
● The SRS front passenger airbag also deploys with considerable force, and
can cause death or serious injury especially if the front passenger is very
close to the airbag. The front passenger seat should be as far from the air-
bag as possible with the seatback adjusted, so the front passenger sits
upright.
● Improperly seated and/or restrained infants and children can be killed or
seriously injured by a deploying airbag. An infant or child who is too small
to use a seat belt should be properly secured using a child restraint sys-
tem. Toyota strongly recommends that all infants and children be placed in
the rear seats of the vehicle and proper ly restrained. The rear seats are
safer for infants and children than the front passenger seat. ( P. 54)

501-1. For safe use
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Exhaust gas precautions
Harmful substance to the human body is included in exhaust
gases if inhaled.
WARNING
Exhaust gases include harmful carbon monoxide (CO), which is colorless and
odorless. Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to
an accident caused by light-headedness, or may lead to death or a serious
health hazard.
■ Important points while driving
● Keep the back door closed.
● If you smell exhaust gases in the vehicle even when the back door is
closed, open the side windows and have the vehicle inspected at any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer as soon as possible.
■ When parking
● If the vehicle is in a poorly ventilated area or a closed area, such as a
garage, stop the hybrid system.
● Do not leave the vehicle with the hybrid system on for a long time.
If such a situation cannot be avoided, park the vehicle in an open space
and ensure that exhaust fumes do not enter the vehicle interior.
● Do not leave the hybrid system operating in an area with snow build-up, or
where it is snowing. If snowbanks build up around the vehicle while the
hybrid system is operating, exhaust gases may collect and enter the vehi-
cle.
■ Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or
crack caused by corrosion, damage to a joint or abnormal exhaust noise, be
sure to have the vehicle inspected and repaired by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.

521-2. Child safety
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Insert the mechanical key into the
cylinder and turn to the “OFF”
position.
The “OFF” indicator light turns on
(only when the power switch is in
ON mode).
■ “PASSENGER AIR BAG” indicator information
If any of the following problems occur, it is possible that there is a malfunction
in the system. Have the vehicle inspected by any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
● The “OFF” indicator does not illuminate when the airbag manual on-off
switch is set to “OFF”.
● The indicator light does not change when the airbag manual on-off switch is
switched to “ON” or “OFF”.
Deactivating the airbags for the front passenger
WARNING
■ When installing a child restraint system
For safety reasons, always install the child restraint system in a rear seat. In
the event that the rear seat cannot be used, the front seat can be used as
long as the airbag manual on-off system is set to “OFF”.
If the airbag manual on-off system is left on, the strong impact of the airbag
deployment (inflation) may cause serious injury or even death.
■ When a child restraint system is not installed on the front passenger
seat
Ensure that the airbag manual on-off system is set to “ON”.
If it is left off, the airbag may not deploy in the event of an accident, which
may result in serious injury or even death.

1102-1. Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■If a warning light comes on, a warning message is displayed or the 12-
volt battery is disconnected
The hybrid system may not start. In that case, try to start the system again. If
the “READY” indicator does not come on, contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
■Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be started,
refuel the vehicle with at least enough gasoline to make the low fuel level
warning light (P. 717) go off. If there is only a small amount of fuel, the
hybrid system may not be able to start. (The standard amount of fuel is about
7.5 L [2.0 gal., 1.7 Imp.gal.], when the vehicle is on a level surface. This value
may vary when the vehicle is on a slope. Add extra fuel when the vehicle is
inclined.)
■Electromagnetic waves
●High voltage parts and cables on the hybrid vehicles incorporate electro-
magnetic shielding, and therefore emit approximately the same amount of
electromagnetic waves as conventional gasoline powered vehicles or home
electronic appliances.
●Your vehicle may cause sound interference in some third party-produced
radio parts.
■Effect of magnetic forces
If objects that generate strong magnetic forces, such as large speakers, are
placed inside the luggage compartment or installed nearby, the generated
magnetic forces may negatively affect the hybrid system.
■Hybrid battery (traction battery) (lithium-ion battery)
The hybrid battery (traction battery) has a limited service life.
The hybrid battery (traction battery) capacity (the ability to hold a charge)
reduces with time and use in the same way as other rechargeable batteries.
The extent at which capacity reduces changes drastically depending on the
environment (ambient temperature, etc.) and usage conditions, such as how
the vehicle is driven and how the hybrid battery (traction battery) is charged.
This is a natural characteristic of lithium-ion batteries, and is not a malfunc-
tion. Also, even though the distance that can be driven in EV mode decreases
when the hybrid battery (traction battery) capacity reduces, vehicle perfor-
mance does not significantly become worse.
In order to reduce the possibility of the capacity reducing, follow the directions
listed on P. 162, “Capacity reduction of the hybrid battery (traction battery)”.
■Starting the hybrid system in an extremely cold environment
When the hybrid battery (traction battery) is extremely cold (below approxi-
mately -30C [-22F]) under the influence of the outside temperature, it may
not be possible to start the hybrid system. In this case, try to start the hybrid
system again after the temperature of the hybrid battery increases due to the
outside temperature increase etc.

1722-2. Charging
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
WARNING
■When charging
Observe the following precautions.
Failure to do so may cause an unexpected accident, resulting in death or
serious injury.
● Connect to a power source suitable for charging. (P. 149)
● Before charging, check that the charging inlet does not have deformations,
damage, corrosion, dust or other foreign materials such as snow or ice
adhering to it. If anything is adhering to the inlet, be sure to completely
remove the material before connecting the charging connector.
● Before inserting the charging plug into the charger, make sure there is no
dirt or dust on the terminal areas. If there is dirt or dust in these areas,
remove completely before inserting the charging plug.
● Do not let the terminals of the charging inlet get wet.
● Make sure that the charging cable, plug and socket are free of foreign mat-
ter and not deformed or damaged.
● Only use sockets where the plug can be securely inserted.
● Do not charge if the charging cable is coiled or bundled.
● Wrapping the charging cable while in-use is not recommended because
cable may overheat. Failure to rewrap charging cable when not in-use
could result in strangulation or tripping hazard.
● Do not touch the terminals of the charging connector and charging inlet
with a sharp metal objects (needles etc.) or hands, or short them with for-
eign objects.
● When charging outdoors, make sure to connect to a rain-tight socket for
outdoor use.
Ensure the rain-tight cover closes completely. If the rain-tight cover cannot
be closed, install a rain-tight cover that will close.
● If any heat, smoke, odors, noise or other abnormalities are noticed during
charging, stop charging immediately.
● Do not insert the plug if the socket is submerged in water or snow.
● When charging during rain or snow, do not pull out or insert the plug with
wet hands. Also, do not get the electrical socket and plug wet.
● Do not charge the vehicle during a lightning storm.
● Do not let the wheels on the charging cable, plug, charging connector and
CCID (Charging Circuit Interrupting Device).
● Firmly insert the plug into the socket.
● Do not use an extension cord and converting adaptor.

1732-2. Charging
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Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
WARNING
●After connecting the charging cable, confirm that it is not wound around
anything.
● If the power indicator light does not illuminate after plugging the charging
cable into the socket-outlet, unplug it immediately.
■ If the error warning indicator on the CCID (Charging Circuit Interrupt-
ing Device) illuminates or flashes during charging
There may be an electrical leakage in t he power source path, or there may
be a malfunction in the charging cable or CCID (Charging Circuit Interrupt-
ing Device). Refer to P. 130 and follow the correction procedure. If the error
warning indicator does not turn off even after performing the correction pro-
cedure, immediately stop charging, remove the charging cable and contact
any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer. Continuing to charge the vehicle in that condition may lead to
unforeseen accidents or serious injury.
■ After charging
Remove the plug if it will not be used for a long time.
Dirt and dust may accumulate plug or socket, which could cause a malfunc-
tion or fire, possibly leading to death or serious injury.
■ Onboard traction battery charger
The onboard traction battery charger is located under the rear seats. Make
sure to observe the following precautions regarding the onboard traction
battery charger. Failure to observe these precautions may result in death or
serious injury such as burns and electric shocks.
● The onboard traction battery charger is hot during charging. Do not touch
the onboard traction battery charger, as doing so may result in burns.
● Do not disassemble, repair or modify the onboard traction battery charger.
When the onboard traction battery charger needs to be repaired, consult
any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
■ Charging inlet
Do not disassemble, repair or modify the charging inlet. It may lead to
unforeseen accidents or serious injury. When the charging inlet needs to be
repaired, consult any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.

203
3Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
3. Instrument cluster
Combination meter ............ 204
Warning lights and
indicators ......................... 214
Main display ....................... 222
Multi-information display .... 230
Head-up display ................. 264
Energy monitor/
consumption screen ........ 271

2043. Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Combination meter
The units used on the display may differ depending on the target region.
Main display (P. 222)
The main display shows basic information related to driving, such as the
vehicle speed and remaining fuel amount.
Multi-information display (P. 230)
The multi-information display shows information which makes the vehicle
convenient-to-use, such as the hybrid system operation condition, electric-
ity consumption and fuel consumption history. Also, the operation contents
of the driving support systems and the combination meter display settings
can be changed by switching to the settings screen.
Warning lights and indicators (P. 214)
The warning lights and indicators comes on or flashes to indicate problems
with the vehicle or to show the operation status of the vehicle’s systems.
Clock (P. 210)
The large meter uses 2 liquid crystal displays to display informa-
tion such as the vehicle condition, driving status, electricity con-
sumption and fuel consumption.
Combination meter layout
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2133. Instrument cluster
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Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is
characteristic of liquid crystal displays, and there is no problem continuing to
use the display.
■ Pop-up display
Some functions, such as the driving mode select switch and air conditioning
system, are operation-linked and display pop-up screens on the multi-infor-
mation display. If the pop-up screens of these functions are not desired, they
can be turned off in the “Meter Customize” settings. ( P. 260)
WARNING
■To prevent an accident
■ Caution for use while driving
For safety, avoid operating the meter control switch while driving as much
as possible, and do not look continuously at the multi-information display
while driving. Stop the vehicle and operate the meter control switch. Failure
to do so may cause a steering wheel operation error, resulting in an unex-
pected accident.
NOTICE
■ The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal
information display. At extremely low temperatures, the information display
monitor may respond slowly, and display changes may be delayed.
Do not place anything or attach a sticker
in front of the instrument cluster. The item
may obscure or obstruct the display, or
could reflect off the display, possibly
causing an accident.