2022 TOYOTA COROLLA maintenance

449
7
7-3. Do-it-yourself maintenance
Maintenance and care
■If the key battery is depleted
The following symptoms may occur:
●The smart entry & start system (if equipped) and wireless remote control
will not function properly.
●The operational range will be reduced.
 Flathead screwdriver
 Small flathead screwdriver
 Lithium battery CR2032
■Use a CR2032 lithium battery
●Batteries can be purchased at any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer, local electrical appliance
shops or camera stores.
●Replace only with the same or equiva-
lent type recommended by the manu- facturer.
●Dispose of used batteries according to local laws.
Vehicles without a smart entry &
start system
1 Remove the key cover.
To prevent damage to the key, cover the tip of the flathead screwdriver with a
rag.
2 Remove the battery cover.
If the battery cover is difficult to remove,
lift the edge to remove it.
3 Remove the depleted battery
using a small flathead screw-
driver.
Insert a new battery with the “+” termi-
Wireless remote con-
trol/electronic key bat-
ter y
Replace the battery with a new
one if it is depleted.
As the key may be damaged if
the following procedure is not
performed properly, it is rec-
ommended that key battery
replacement be performed by
any authorized Toyota retailer
or Toyota authorized repairer,
or any reliable repairer.
Items to prepare
Replacing the battery

4507-3. Do-it-yourself maintenance
nal facing up.
4 Install the battery cover with the
tab facing up.
Push the entire edge of the battery
cover into the key.
5 Install the key cover.
Align the key cover with the key and
then press it straight into the key.
Make sure that the key cover is securely installed without any gaps
between it and the key.
6 Operate the or switch
and check that the doors can be
locked/unlocked.
Vehicles with a smart entry &
start system
1 Release the lock and remove
the mechanical key.
2 Remove the key cover.
To prevent damage to the key, cover
the tip of the flathead screwdriver with a rag.
3 Remove the depleted battery
using a small flathead screw-
driver.
When removing the cover, the elec- tronic key module may stick to the
cover and the battery may not be visi-
ble. In this case, remove the electronic key module in order to remove the bat-
tery.
Insert a new battery with the “+” termi-

451
7
7-3. Do-it-yourself maintenance
Maintenance and care
nal facing up.
4 When installing the key cover
and mechanical key, install by
conducting step 2 and step 1
with the directions reversed.
5 Operate the or switch
and check that the doors can be
locked/unlocked.
WA R N I N G
■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 wireless remote con- trol/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 bat-
teries from children.
●If the cover cannot be firmly closed,
stop using the wireless remote con-
trol/electronic key and stow the key in the place where children cannot
reach, and then contact any author-
ized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
●If you accidentally swallow a battery or put a battery into a part of your
body, get emergency medical atten-
tion immediately.
■To prevent battery explosion or
leakage of flammable liquid or gas
●Replace the battery with a new bat-
tery 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 tempera- tures.
●Do not burn, break or cut a battery.
■Lithium battery precautions
CAUTION RISK OF EXPLOSION IF BATTERY
IS REPLACED BY AN INCORRECT
TYPE. DISPOSE OF USED BATTERIES
ACCORDING TO THE INSTRUC-
TIONS
NOTICE
■When replacing the battery
Use a flathead screwdriver of appro-
priate size. Applying excessive force
may deform or damage the cover.
■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 con-
trol.
●Do not bend either of the battery
terminals.

4527-3. Do-it-yourself maintenance
1Turn the engine switch off.
2 Open the fuse box cover.
Engine compartment: type A
fuse box
Push the tabs in and lift the lid off.
Engine compartment: type B
fuse box
Push the tabs in and lift the lid off.
NOTICE
■When removing the battery cover
(vehicles without a smart entry &
start system)
Do not forcibly remove the battery
cover, otherwise it may be damaged.
If the battery cover is difficult to remove, lift the edge to remove it.
Checking and replacing
fuses
If any of the electrical compo-
nents do not operate, a fuse
may have blown. If this hap-
pens, check and replace the
fuses as necessary.
Checking and replacing
fuses

453
7
7-3. Do-it-yourself maintenance
Maintenance and care
Under the driver’s side instru-
ment panel (left-hand drive vehi-
cles)
Remove the lid.
Make sure to push the claw when
removing/installing the lid.
Under the passenger’s side
instrument panel (right-hand
drive vehicles)
Remove the cover and then remove the
lid.
Make sure to push the claw when
removing/installing the lid.
3 Remove the fuse with the pull-
out tool.
Only type A fuse can be
removed using the pullout tool.
4 Check if the fuse is blown.
Replace the blown fuse with a new fuse of an appropriate amperage rating. The
amperage rating can be found on the
fuse box lid.
Ty p e A
Normal fuse
Blown fuse
Ty p e B

4547-3. Do-it-yourself maintenance
Normal fuse
Blown fuse
Type C
Normal fuse
Blown fuse
Type D
Normal fuse
Blown fuse
Type E
Normal fuse
Blown fuse
■After a fuse is replaced
●When installing the lid, make sure that
the tab is installed securely.
●If the lights do not turn on even after
the fuse has been replaced, a bulb
may need replacement. ( P.455)
●If the replaced fuse blows again, have
the vehicle inspected by any author- ized Toyota retailer or Toyota author-
ized repairer, or any reliable repairer.
■If there is an overload in a circuit
The fuses are designed to blow, protect- ing the wiring harness from damage.
■When replacing light bulbs
Toyota recommends that you use genu-
ine 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.
WA R N I N G
■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 indi-
cated, 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.

455
7
7-3. Do-it-yourself maintenance
Maintenance and care
Check the wattage of the light bulb
to be replaced. ( P.535)
■Front
Headlights (bulb type)
Front turn signal lights (bulb
type)
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.
Light bulbs
You may replace the following
bulbs by yourself. The diffi-
culty level of replacement var-
ies depending on the bulb. As
there is a danger that compo-
nents may be damaged, we
recommend that replacement
is carried out by authorized
Toyota retailer or Toyota
authorized repairer, or any reli-
able repairer.
Preparing for light bulb
replacement
Bulb locations

4567-3. Do-it-yourself maintenance
■Rear
Tail lights (bulb type)
Rear turn signal lights (bulb
type)
License plate lights
■Bulbs that need to be replaced
by any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable
repairer
 Headlights (LED type)
 Daytime running lights/front posi-
tion lights
 Front turn signal lights (LED
type)
 Front fog lights (if equipped)
 Side turn signal lights
 Stop lights
 Tail lights (LED type)
 Back-up light
 Rear fog light
 High mounted stoplight
 Rear turn signal lights (LED type)
■LED light bulbs
The headlights (LED type), daytime run- ning lights/front position lights, front turn
signal lights (LED type), front fog lights,
side turn signal lights, stop lights, tail lights (LED type), back-up light, rear fog
light, high mounted stoplight and rear
turn signal lights (LED type) 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 fol- lowing situations:
●Large drops of water have built up on the inside of the lens.
●Water has built up inside the head-light.
■When replacing light bulbs
 P. 4 5 4
■Headlights (bulb type)
1 Turn the bulb base
counterclockwise.
Replacing light bulbs