maintenance TOYOTA PRIUS PRIME 2021 (in English) Manual Online

PRIUS PRIME_OM_OM47D71U_(U)
6497-3. Do-it-yourself maintenance
7
Maintenance and care
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 your
Toyota dealer.
●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.
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.

650
PRIUS PRIME_OM_OM47D71U_(U)
7-3. Do-it-yourself maintenance
Checking and replacing fuses
Turn the power switch off.
Confirm that the charging connector is not connected. Also, do not use the
Remote Air Conditioning System during the procedure.
Open the fuse box cover.
Engine compartment type A fuse box
While pushing the 2 claws, lift
up the cover.
When closing the cover, make
sure to attach the 2 claws.
Engine compartment type B fuse box
While pushing the 3 claws, lift
up the cover.
When closing the cover, make
sure to attach the 3 claws.
Left side instrument panel
Remove the lid.
Make sure to press the claw
during removal or installation.
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.
1
2

PRIUS PRIME_OM_OM47D71U_(U)
6517-3. Do-it-yourself maintenance
7
Maintenance and care
Remove the fuse.
Only type A fuse can be
removed using the pullout tool.
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.
3
4
1
2
Ty p e AType B
Ty p e C

652
PRIUS PRIME_OM_OM47D71U_(U)
7-3. Do-it-yourself maintenance
■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. 655)
●If the replaced fuse blows again, have the vehicle inspected by your Toyota
dealer.
■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, nongenuine 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 your
Toyota dealer as soon as possible.

653
PRIUS PRIME_OM_OM47D71U_(U)
7-3. Do-it-yourself maintenance
7
Maintenance and care
Headlight aim
Adjustment bolt A
Adjustment bolt B
Make sure the vehicle has a full tank of gasoline and the area
around the headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.
Vertical movement adjusting bolts
1
2
Before checking the headlight aim
1
2
3
4

654
PRIUS PRIME_OM_OM47D71U_(U)
7-3. Do-it-yourself maintenance
Using a Phillips-head screw-
driver, turn bolt A in either direc-
tion.
Remember the turning direction
and the number of turns.
Turn bolt B the same number of
turns and in the same direction
as step .
If the headlight cannot be adjusted
using this procedure, take the vehi-
cle to your Toyota dealer to adjust
the headlight aim.
Adjusting the headlight aim
1
2
1

655
PRIUS PRIME_OM_OM47D71U_(U)
7-3. Do-it-yourself maintenance
7
Maintenance and care
Light bulbs
Check the wattage of the light bulb to be replaced. (P. 738)
Back-up light
You may replace the following bulbs by yourself. The difficulty
level of replacement varies depending on the bulb. If necessary
bulb replacement seems difficult to perform, contact your
Toyota dealer.
For more information about replacing other light bulbs, contact
your Toyota dealer.
Preparing for light bulb replacement
Bulb locations

656
PRIUS PRIME_OM_OM47D71U_(U)
7-3. Do-it-yourself maintenance
■Back-up lights
Remove the 2 clips that secure the lower portion of the cover at
the back of the rear tire.
Pull out the center portion of
the clip to unlock using a flat-
head screwdriver, and then
pull it to remove.
Remove the 3 clips that secure the upper portion of the cover.
Turn the clip counterclockwise to remove.
Pull out the center portion of the clip to unlock using a flathead
screwdriver, and then pull it to remove.
Pull out the center portion of the clip to unlock using a flathead
screwdriver, and then pull it to remove.
Replacing light bulbs
1
2
1
2
3

PRIUS PRIME_OM_OM47D71U_(U)
6577-3. 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

658
PRIUS PRIME_OM_OM47D71U_(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