Page 465 of 612
4657-3. Do-it-yourself maintenance
7
Maintenance and care
COROLLA_TMMMS_TMMC_U (OM12F00U)
Open the case cover using a
coin protected with tape etc.
and remove the depleted bat-
tery using a small flathead
screwdriver.
Insert a new battery with the “+”
terminal facing up.
Vehicles with a smart key system
Take out the mechanical key.
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
3
1
2
3
Page 466 of 612

4667-3. Do-it-yourself maintenance
COROLLA_TMMMS_TMMC_U (OM12F00U)
■Use a CR2016 (vehicles without a smart key system) or CR2032 (vehicles
with a smart key system) 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 manu-
facturer.
●Dispose of used batteries according to local laws.
■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.
CAUTION
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.
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.
Page 467 of 612
4677-3. Do-it-yourself maintenance
7
Maintenance and care
COROLLA_TMMMS_TMMC_U (OM12F00U)
Turn the engine switch off.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid
off.
Under the driver’s side instrument panel
Remove the lid.
Remove the fuse with the pull-
out tool.
Only type A fuses can be removed
using the pullout tool.
Checking and replacing fuses
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
3
Page 468 of 612
4687-3. Do-it-yourself maintenance
COROLLA_TMMMS_TMMC_U (OM12F00U)
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 p e AType B
Ty p e C
Page 469 of 612

4697-3. Do-it-yourself maintenance
7
Maintenance and care
COROLLA_TMMMS_TMMC_U (OM12F00U)
■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. 470)
●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.
CAUTION
■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.
Page 470 of 612
4707-3. Do-it-yourself maintenance
COROLLA_TMMMS_TMMC_U (OM12F00U)
Check the wattage of the light bulb to be replaced. (P. 553)
■Front
Light bulbs
You may replace the following bulbs 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
Headlight high beams
Front turn signal/parking lights
Front side marker lights
Front fog lights (if equipped)1
2
3
4
Page 471 of 612
4717-3. Do-it-yourself maintenance
7
Maintenance and care
COROLLA_TMMMS_TMMC_U (OM12F00U)■
Rear
■Headlight high beams
Turn the bulb base counter-
clockwise.
Pull the bulb out while press-
ing the lock release of the
connector.
Back-up lights
Rear turn signal lights
Stop/tail/rear side marker lights
License plate lights
Replacing light bulbs
1
2
3
4
1
2
Page 472 of 612
4727-3. Do-it-yourself maintenance
COROLLA_TMMMS_TMMC_U (OM12F00U)
Replace the light bulb, and
install the bulb base.
Align the 3 tabs on the light bulb
with the mounting and insert.
Turn and secure the bulb
base.
Shake the bulb base gently to
check that it is not loose, turn
the headlights on once and visu-
ally confirm that no light is leak-
ing through the mounting.
3
4