Page 643 of 792
PRIUS PRIME_OM_OM47D13U_(U)
6437-3. Do-it-yourself maintenance
7
Maintenance and care
Remove the cover end and
pull the cover toward the
front of the vehicle to make a
gap between the cover and
rear bumper.
Remove the clip inside of the cover, and remove the cover.
Pull out the center portion of
the clip to unlock using a flat-
head screwdriver, and then
pull it to remove.
Turn the bulb base counter-
clockwise, and then remove
the light bulb.
To remove the light bulb, insert a
hand from the gap between the
rear tire and rear bumper.
3
4
5
Page 644 of 792
644
PRIUS PRIME_OM_OM47D13U_(U)
7-3. Do-it-yourself maintenance
Install a new light bulb then
install the bulb base to the
light unit by inserting it and
turning the bulb base clock-
wise.
Reinstall the cover to the its original position, and attach the clip
inside of the cover.
Attach the clip on the cover,
then press the center portion
of the clip to lock.
Reinsert the cover end to the
rear bumper.
Make sure to secure the 2 tabs
on the cover end.
6
7
8
Page 645 of 792
PRIUS PRIME_OM_OM47D13U_(U)
6457-3. Do-it-yourself maintenance
7
Maintenance and care
Reinsert the 3 clips to the upper portion of the cover.
Turn the clip clockwise to lock.
Attach the clip on the cover, and then press the center portion
of the clip to lock.
Attach the clip on the cover, and then press the center portion
of the clip to lock.
Reinsert the 2 clips to the lower portion of the cover.
Attach the clip on the cover,
and then press the center
portion of the clip to lock.9
1
2
3
10
Page 646 of 792

646
PRIUS PRIME_OM_OM47D13U_(U)
7-3. Do-it-yourself maintenance
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by
your Toyota dealer.
● Headlights and daytime running lights
● Front side marker lights
● Parking lights
● Fog lights (if equipped)
● LED accent lights (if equipped)
● Front turn signal lights
● Rear turn signal lights
● Rear side marker lights
● Tail lights
● Stop lights
● High mounted stoplight
● License plate lights
■LED lights
The lights other than the back-up lights each consist of a numb er of LEDs. If
any of the LEDs burn out, take your vehicle to your Toyota deal er to have the
light replaced.
■ Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the lens does not indicate a
malfunction. Contact your Toyota dealer for more information in the following
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. 638
Page 647 of 792

PRIUS PRIME_OM_OM47D13U_(U)
6477-3. Do-it-yourself maintenance
7
Maintenance and care
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 clea n 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. Fa ilure to do so
may result in heat damage, fire, or water entering the light un it. This may
damage the back-up lights 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.
● Do not replace the right-hand back-up light immediately after t he vehicle
has been driven.
After the vehicle has been driven the exhaust pipe will be extr emely hot,
and touching the exhaust pipe may result in burns.
● Use gloves and other protection to prevent injuries on vehicle parts.
There is the danger of being injured on the edges of parts.
■ 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.
Page 648 of 792
648
PRIUS PRIME_OM_OM47D13U_(U)
7-3. Do-it-yourself maintenance
Page 668 of 792

6688-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D13U_(U)
WARNING
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation p ressure
label (tire and load information label). (If your vehicle has t ires of a dif-
ferent size than the size indica ted on the vehicle placard or tire inflation
pressure label [tire and load information label], you should de termine
the proper tire inflation p ressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS -tire pressure warning system) that
illuminates a low tire pressure telltale (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Acco rdingly,
when the low tire pressure telltale (tire pressure warning ligh t) illumi-
nates, you should stop and check your tires as soon as possible , and
inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire tread lif e, and may
affect the vehicle’s handl ing and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a sub-
stitute for proper tire maintena nce, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-inflation has not reached
the level to trigger illumination of the TPMS low tire pressure telltale (tire
pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warn-
ing system) malfunction indicato r to indicate when the system is not
operating properly. The TPMS (tire pressure warning system) mal func-
tion indicator is combined with the low tire pressure telltale (tire pressure
warning light). When the system detects a malfunction, the tell tale will
flash for approximately one mi nute and then remain continuously illumi-
nated. This sequence will continue upon subsequent vehicle star t-ups
as long as the malfunction exists . When the malfunction indicator is illu-
minated, the system may not be able to detect or signal low tir e pres-
sure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a vari-
ety of reasons, including the installation of replacement or al ternate tires
or wheels on the vehicle that prevent the TPMS (tire pressure w arning
system) from functioning properly. Always check the TPMS (tire pres-
sure warning system) malfunction telltale after replacing one or more
tires or wheels on your vehicle to ensure that the replacement or alter-
nate tires and wheels allow the TPMS (tire pressure warning sys tem) to
continue to function properly.
Page 671 of 792

6718-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D13U_(U)
8
When trouble arises
The warning lights and warning buzzers operate as follows depending
on the content of the message. If a message indicates the need for
inspection by a dealer, have the vehicle inspected by your Toyota
dealer immediately.
The operation of the warning lights and warning buzzers may dif fer
from those stated. In this case, perform the correction procedu re
according to the displayed message.
*: A buzzer sounds the first time a message is shown on the multi -informa-
tion display.
Messages and warnings
System
warning lightWarning
buzzer
*Warning
Comes onSounds
Indicates an important situation, such
as when a system related to driving is
malfunctioning or that danger may
result if the correction procedure is not
performed
Comes on or flashesSounds
Indicates an important situation, such
as when the systems shown on the
multi-information display may be mal-
functioning
FlashesSounds
Indicates a situation, such as when
damage to the vehicle or danger may
result
Comes onDoes not sound
Indicates a condition, such as mal-
function of electrical components, their
condition, or indicates the need for
maintenance
FlashesDoes not
sound
Indicates a situation, such as when an
operation has been performed incor-
rectly, or indicates how to perform an
operation correctly