2012 TOYOTA COROLLA Owners Manual

385
4-3. Do-it-yourself maintenance
4
Maintenance and care
Key batter y
Replace the battery with a new one if it is discharged.
■You will need the following items:
●Flathead screwdriver (To prevent damage to the key, cover
the tip of the screwdriver with a rag.)
● Small Phillips-hea d screwdriver
● Lithium battery
Vehicles with smart key system: CR1632
Vehicles without smart ke y system: CR2025 (Type A)
CR2016 (Type B)
■ Replacing the battery (vehicles with smart key system)
Take out the mechanical key.
Remove the cover.
STEP 1
STEP 2

386 4-3. Do-it-yourself maintenance
Remove the depleted battery.
Insert a new battery with the
“+” terminal facing up.
■Replacing the battery (vehicles without smart key system)
Remove the cover.
Remove the module.
STEP 3
STEP 1
STEP 2

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4-3. Do-it-yourself maintenance
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Maintenance and care
Ty p e A
Open the case cover using a
flathead screwdriver pro-
tected with tape etc. and
remove the depleted battery.
Insert a new battery (CR2025)
with the “+” terminal facing up.
Ty p e BOpen the case cover using a
coin protected with tape etc.
and remove the depleted bat-
tery.
Insert a new battery (CR2016)
with the “+” terminal facing up.
STEP 3
STEP 3

388 4-3. Do-it-yourself maintenance
■If the key battery is discharged
The following symptoms may occur.
●The smart key system and wireless remote control will not function prop-
erly.
● The operational range is reduced.
■ Use the following types of lithium battery
Vehicles with smart key system: CR1632
Vehicles without smart key system: CR2025 (Type A), CR2016 (Type B)
●Batteries can be purchased at your Toyota dealer, jewelers, or camera
stores.
● Replace only with the same or equivalent type recommended by your
Toyota dealer.
● Dispose of used batteries according to the local laws.
CAUTION
■Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child,
they can cause choking. 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 components inside the remote control.
● Do not bend either of the battery terminals.

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4-3. Do-it-yourself maintenance
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Maintenance and care
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 necessary.
Vehicles with smart key system: Turn the “ENGINE START
STOP” switch OFF.
Vehicles without smart key system: 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.STEP 1
STEP 2

390 4-3. Do-it-yourself maintenance
Driver’s side instrument panelRemove the instrument panel.
After a system failure, see “Fuse layout and amperage rat-
ings” ( P. 393) for details about which fuse to check.
Take out the pullout tool.
Only type A fuse can be
removed using the pullout tool.
For type A and B fuses: Remove the fuse.
STEP 3
STEP 4
STEP 5

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4-3. Do-it-yourself maintenance
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Maintenance and care
Check if the fuse has blown.
Ty p e A
Normal fuse
Blown fuse
Replace it with one of an
appropriate amperage rating.
The amperage rating can be
found on the fuse box lid.
Ty p e BNormal fuse
Blown fuse
Replace it with one of an
appropriate amperage rating.
The amperage rating can be
found on the fuse box lid.
STEP 6

392 4-3. Do-it-yourself maintenance
Ty p e CNormal fuse
Blown fuse
Contact your Toyota dealer.
Ty p e D
Normal fuse
Blown fuse
Contact your Toyota dealer.