TOYOTA PRIUS 2023 Owners Manual

5596-3. Do-it-yourself maintenance
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6
Maintenance and care
Check if the fuse is blown.
Normal fuse
Blown fuse
Replace the blown fuse with a new fuse of an appropriate amperage rat-
ing. The amperage rating can be found on the fuse box lid.
4
1
2
Ty pe AType B
Ty pe C

5606-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
■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.

5616-3. Do-it-yourself maintenance
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6
Maintenance and care
Light bulbs
Check the wattage of the light bulb to be replaced. (P. 667)
Back-up light*
Rear turn signal light
*: The back-up light is installed only on the front passenger side.
You may replace the following bulbs by yourself. The difficulty
level of replacement varies depending on the bulb. As there is a
danger that components may be damaged, we recommend that
replacement is carried out by any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
Preparing for light bulb replacement
Bulb locations
1
2

5626-3. Do-it-yourself maintenance
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Rear turn signal lights and back-up light
Open the back door. Insert a
screwdriver into the cover on
the side of the light and
detach the claws indicated by
the dotted lines near the
exterior of the vehicle. Then,
pry the cover and pull it diag-
onally backward to the lug-
gage compartment to detach
the claws indicated by the
dotted lines near the vehicle
interior.
To prevent damage to the cover, protect the tip of the screwdriver with a
rag.
Remove the 2 screws.
Pull the light unit toward the
rear of the vehicle to remove
it.
Replacing light bulbs
1
2
3

5636-3. Do-it-yourself maintenance
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6
Maintenance and care
Turn the bulb base counterclockwise.
Remove the light bulb.
Install a new light bulb then install the bulb base to the light unit
by inserting it and turning the bulb base clockwise.4
Back-up lightRear turn signal light
5
Back-up lightRear turn signal light
6
Back-up lightRear turn signal light

5646-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
Align the grooves on the light
unit with the claws, and insert
the light unit straight so that
the 2 pins on the light unit fit
into the holes. Confirm that
the light unit is completely
secured.
Install the 2 screws.
Install the cover.
7
8
9

5656-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
6
Maintenance and care
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by
any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
●Headlights
●Daytime running lights
●Front position lights
●Front fog lights
●Front turn signal lights
●Side turn signal lights
●Rear fog light
●Tail lights
●Stop lights
●High mounted stoplight
●License plate lights
■LED lights
The lights other than the rear turn signal lights and back-up light each consist
of a number of LEDs. If any of the LEDs burn out, take your vehicle to any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer to have the light replaced.
■Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not
indicate a malfunction. Contact any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer for more information in the follow-
ing situations:
●Large drops of water have built up on the inside of the lens.
●Water has built up inside the light.
■When replacing light bulbs
P. 560

5666-3. Do-it-yourself maintenance
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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

5687-1. Essential information
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Emergency flashers
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch
once again.
■ Emergency flashers
● If the emergency flashers are used for a long time while the hybrid system is
not operating (while the “READY” indicator is not illuminated), the 12-volt
battery may discharge.
● If any of the SRS airbags deploy (inflate) or in the event of a strong rear
impact, the emergency flashers will turn on automatically.
The emergency flashers will turn off automatically after operating for approx-
imately 20 minutes. To manually turn the emergency flashers off, press the
switch twice.
(The emergency flashers may not turn on automatically depending on the
force of the impact and conditions of the collision.)
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in the road due to a breakdown, etc.