2020 TOYOTA COROLLA Owners Manual (in English)

4577-3. Do-it-yourself maintenance
COROLLA_U
7
Maintenance and care
1 Turn the engine switch off.
2 Open the glove box. Slide off
the damper (if equipped).
3 Push in the glove box on the
vehicle’s outer side to discon-
nect the claws. Then pull out
the glove box and disconnect
the lower claws.
4 Unlock the filter cover ( ),
pull the filter cover out of the claws ( ), and remove the
filter cover.
5 Remove the filter case.
6 Remove the air conditioning
filter from the filter case and
replace it with a new one.
The “ UP” marks shown on the
filter and the filter case should be
pointing up.
■Checking interval
Replace the air conditioning filter
according to the maintenance
schedule. In dusty areas or areas
with heavy traffic flow, early replace-
Air condition ing filter
The air conditioning filter
must be changed regularly
to maintain air conditioning
efficiency.
Removing the air condi-
tioning filter

4587-3. Do-it-yourself maintenance
COROLLA_Ument may be required. (For sched-
uled maintenance information,
please refer to the “Scheduled
Maintenance Guide” or “Owner’s
Manual Supplement”.)
■If air flow from the vents
decreases dramatically
The filter may be clogged. Check
the filter and replace if necessary.*: If equipped
■If the key battery is depleted
The following symptoms may occur:
●The smart key 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
your Toyota dealer, local electrical
appliance shops or camera stores.
●Replace only with the same or
equivalent type recommended by
the manufacturer.
●Dispose of used batteries accord-
ing to local laws.
NOTICE
■When using the air condition-
ing system
Make sure that a filter is always
installed.
Using the air conditioning system
without a filter may cause damage
to the system.
■To prevent damage to the fil-
ter cover
When moving the filter cover in
the direction of arrow to release
the fitting, pay attention not to
apply excessive force to the
claws. Otherwise, the claws may
be damaged.
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
recommended that key bat-
tery replacement be per-
formed by your Toyota
dealer.
Items to prepare

4597-3. Do-it-yourself maintenance
COROLLA_U
7
Maintenance and care
Vehicles without a smart key
system
1 Remove the key cover.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a rag.
2Remove the battery cover.
If the battery cover is difficult to
remove, lift the edge to remove it.
3Remove the depleted battery
using a small flathead screw-
driver.
Insert a new battery with the “+” ter- minal facing up.
4
Install the battery cover with
the tab facing up.
Push the entire edge of the battery
cover into the key.
5Install 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.
6Operate the or switch
and check that the doors can
be locked/unlocked.
Replacing the battery

4607-3. Do-it-yourself maintenance
COROLLA_U
Vehicles with a smart key sys-
tem
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 screw-
driver with a rag.
3Remove 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
visible. In this case, remove the
electronic key module in order to
remove the battery.
Insert a new battery with the “+” ter- minal 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.
WARNING
■Removed battery and other
parts
These parts are small and if swal-
lowed by a child, they can cause
choking. Keep away from chil-
dren. Failure to do so could result
in death or serious injury.
NOTICE
■When replacing the battery
Use a flathead screwdriver of
appropriate size. Applying exces-
sive 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.

4617-3. Do-it-yourself maintenance
COROLLA_U
7
Maintenance and care
1 Turn 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
●Do not touch or move any other
component inside the remote
control.
●Do not bend either of the battery
terminals.
■When removing the battery
cover (vehicles without a
smart key system)
Do not forcibly remove the battery
cover, otherwise it may be dam-
aged.
If the battery cover is difficult to
remove, lift the edge to remove it.
Checking a nd replac-
ing fuses
If any of the electrical com-
ponents do not operate, a
fuse may have blown. If this
happens, check and replace
the fuses as necessary.
Checking and replacing
fuses

4627-3. Do-it-yourself maintenance
COROLLA_U
Under the driver’s side instru-
ment panel
Remove the lid.
Make sure to push the claw when
removing/installing the lid.
3Remove the fuse with the
pullout 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.
Type A
Normal fuse
Blown fuse
Type B
Normal fuse
Blown fuse
Type CNormal fuse
Blown fuse

4637-3. Do-it-yourself maintenance
COROLLA_U
7
Maintenance and care
Ty p e D Normal fuse
Blown fuse
Ty p e 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.464)
●If the replaced fuse blows again,
have the vehicle inspected by
your Toyota dealer.
■If there is an overload in a cir-
cuit
The fuses are designed to blow, pro-
tecting 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 con-
nected to circuits designed to pre-
vent overload, non-genuine parts of
parts not designed for this vehicle
may be unusable.
WARNING
■To prevent system break-
downs and vehicle fire
Observe the following precau-
tions.
Failure to do so may cause dam-
age 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.
NOTICE
■Before replacing fuses
Have the cause of electrical over-
load determined and repaired by
your Toyota dealer as soon as
possible.

4647-3. Do-it-yourself maintenance
COROLLA_U
Check the wattage of the light
bulb to be replaced. (P.533)
■Front
Front side marker lights
Front turn signal/parking
lights (vehicles without side
turn signal lights)
■RearBack-up lights
Rear turn signal lights
Rear side marker lights (bulb
type)
■Bulbs that need to be
replaced by your Toyota
dealer
 Headlights/daytime running
lights
 Parking lights (vehicles with
side turn signal lights)
 Front turn signal lights (vehi-
cles with side turn signal
lights)
 LED accent lights (if
equipped)
 Side turn signal lights (if
equipped)
 Tail lights
 Stop lights
 Rear side marker lights (LED
type)
 High mounted stoplight
 License plate lights
Light bulbs
You may replace the follow-
ing bulbs yourself. The diffi-
culty 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