2023 TOYOTA PRIUS warning

5496-3. Do-it-yourself maintenance
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6
Maintenance and care
NOTICE
■When cleaning the air intake vent
■ To prevent damage to the vehicle
● Do not allow water or foreign matter to enter the air intake vent when the
cover is removed.
● Carefully handle the removed filter so that it will not be damaged. If the fil-
ter is damaged, have it replaced with a new filter by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
● Make sure to reinstall the filter and cover to their original positions after
cleaning.
● Do not install anything to the air intake vent other than the exclusive filter
for this vehicle or use the vehicle without the filter installed.
■ If “Maintenance Required for Traction Battery Cooling Parts See
Owner's Manual” is shown on the multi-information display
If the vehicle is continuously driven with the warning message (indicating
that charging/discharging of the hybrid battery [traction battery] may
become limited) displayed, the hybrid battery (traction battery) may mal-
function. If the warning message is shown, clean the air intake vent immedi-
ately.
When cleaning the air intake vent, make
sure to only use a vacuum to suck out
dust and clogs. If a compressed air blow
gun, etc. is used to blow out dust and
clogs, the dust or clogs may be pushed
into the air intake vent, which may affect
the performance of the hybrid battery
(traction battery) and cause a malfunc-
tion.

5566-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
WARNING
■Battery precautions
Observe the following precautions.
Failure to do so may result in death or serious injury.
● Do not swallow the battery. Doing so may cause chemical burns.
● A coin battery or button battery is used in the electronic key. If a battery is
swallowed, it may cause severe chemical burns in as little as 2 hours and
may result in death or serious injury.
● Keep away new and removed batteries from children.
● If the cover cannot be firmly closed, stop using the electronic key and stow
the key in the place where children cannot reach, and then contact any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer as soon as possible.
● If you accidentally swallow a battery or put a battery into a part of your
body, get emergency medical attention immediately.
■ To prevent battery explosion or leakage of flammable liquid or gas
● Replace the battery with a new battery of the same type. If a wrong type of
battery is used, it may explode.
● Do not expose batteries to extremely low pressure due to high altitude or
extremely high temperatures.
● Do not burn, break or cut a battery.
■ Certification for the smart entry & start system
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
NOTICE
■ For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
● Always work with dry hands.
Moisture may cause the battery to rust.
● Do not touch or move any other component inside the remote control.
● Do not bend either of the battery terminals.

5606-3. Do-it-yourself maintenance
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■After a fuse is replaced
● If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. ( P. 561)
● If the replaced fuse blows again, have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■ If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■ When replacing light bulbs
Toyota recommends that you use genuine Toyota products designed for this
vehicle. Because certain bulbs are connected to circuits designed to prevent
overload, non-genuine parts or parts not designed for this vehicle may be
unusable.
WARNING
■ To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.
● Never use a fuse of a higher amperage rating than that indicated, or use
any other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
● Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer as soon as possible.

5666-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
WARNING
■Replacing light bulbs
● Be sure to stop the hybrid system and turn off the lights. Do not attempt to
replace the bulb immediately after turning off the lights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the light bulb with bare hands. When it is
unavoidable to hold the glass portion, use and hold with a clean dry cloth
to avoid getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Failure to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
● Do not attempt to repair or disassemble light bulbs, connectors, electric
circuits or component parts.
Doing so may result in death or serious injury due to electric shock.
■ To prevent damage or fire
● Make sure bulbs are fully seated and locked.
● Check the wattage of the bulb before installing to prevent heat damage.

567
7When trouble arises
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7-1. Essential information
Emergency flashers ........... 568
If your vehicle has to
be stopped in an
emergency ....................... 569
If the vehicle is submerged
or water on the road is
rising ................................ 570
7-2. Steps to take in an
emergency
If your vehicle needs
to be towed ...................... 572
If you think something is
wrong ............................... 579
If a warning light turns on
or a warning buzzer
sounds ............................. 580
If a warning message is
displayed ......................... 589
If you have a flat tire
(vehicles without
spare tire) ........................ 598
If you have a flat tire
(vehicles with
spare tire) ........................ 618
If the hybrid system will
not start............................ 634
If the electronic key does
not operate properly ........ 636
If the 12-volt battery is
discharged ....................... 639
If your vehicle
overheats ......................... 645
If the vehicle becomes
stuck ................................ 650

5697-1. Essential information
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When trouble arises
If your vehicle has to be stopped in an
emergency
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase the effort
required to slow the vehicle.
Shift the shift position to N.
If the shift position is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the hybrid system.
If the shift position cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicle
speed as much as possible.
To stop the hybrid system,
press and hold the power
switch for 2 consecutive sec-
onds or more, or press it briefly
3 times or more in succession.
Stop the vehicle in a safe place by the road.
Only in an emergency, such as if it becomes impossible to stop
the vehicle in the normal way, stop the vehicle using the follow-
ing procedure:
1
2
3
4
3
Press and hold for 2 seconds or
more, or press briefly 3 times or
more
4
WARNING
■ If the hybrid system has to be turned off while driving
Power assist for the steering wheel will be lost, making the steering wheel
heavier to turn. Decelerate as much as possible before turning off the hybrid
system.
5

5717-1. Essential information
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7
When trouble arises
■Water level exceeds the floor
When the water level exceeds the floor and time has passed, the electrical
equipment will get damaged, the power windows will not operate, the engine
and motor stop, and the vehicle may not be able to get moving.
■ Using an emergency escape hammer*1
Laminated glass*2 is used in the windshield and the windows on this vehicle.
Laminated glass cannot be shattered with an emergency hammer*1.
*1: Contact any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer or aftermarke t accessory manufacturer for further
information about an emergency hammer.
*2: If equipped
■ How to distinguish laminated glass
When looking from the cross-sectional
view point, laminated glass is two sheets
of glass pasted together.
Laminated glass
Tempered glass
WARNING
■ Caution while driving
Do not drive on roads where the roads may be submerged or the water may
be rising. Otherwise the vehicle may be damaged and cannot move, as well
as become flooded and set a drift, which may lead to death.
1
2

5727-2. Steps to take in an emergency
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If your vehicle needs to be towed
In the following situations, it is not possible to be towed by another
vehicle using cables or chains, as the front wheels may be locked due
to the parking lock. Contact any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer or commercial towing ser-
vice.
● There is a malfunction in the shift control system. (P. 247, 597)
● There is a malfunction in the immobilizer system. (P. 9 1 )
● There is a malfunction in the smart entry & start system. (P. 636)
● The 12-volt battery is discharged. (P. 639)
The following may indicate a problem with your hybrid transmission.
Contact any authorized Toyota retailer or Toyota authorized repairer,
or any reliable repairer or commercial towing service before towing.
● The hybrid system warning message is displayed and the vehicle
does not move.
● The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle
towed by any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer or commercial towing service,
using a wheel-lift type truck or flatbed truck.
Use a safety chain system for all towing, and abide by all state/
provincial and local laws.
Situations when it is not possible to be towed by another vehicle
Situations when it is necessary to contact dealers before towing