Page 464 of 612
4647-3. Do-it-yourself maintenance
COROLLA_TMMMS_TMMC_U (OM12F00U)
●Flathead screwdriver
●Small flathead screwdriver
●Lithium battery CR2016 (vehicles without a smart key system), or
CR2032 (vehicles with a smart key system)
Vehicles without a smart key system
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.
To prevent the buttons from being
disassembled, face the button sur-
face downward.
Remove the module.
Wireless remote control/electronic key bat-
ter y
: If equipped
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
1
2
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 481 of 612
481
8When trouble arises
COROLLA_TMMMS_TMMC_U (OM12F00U)8-1. Essential information
Emergency flashers .......... 482
If your vehicle has to
be stopped in an
emergency ...................... 4838-2. Steps to take in an
emergency
If your vehicle needs to
be towed ......................... 485
If you think something
is wrong .......................... 490
Fuel pump shut off
system ............................ 491
If a warning light turns
on or a warning buzzer
sounds ............................ 492
If a warning message or
indicator is displayed ...... 504
If you have a flat tire.......... 514
If the engine will not
start ................................. 526
If the shift lever cannot
be shifted from P............. 528
If the electronic key does
not operate properly........ 529
If the vehicle battery is
discharged ...................... 532
If your vehicle
overheats ........................ 537
If the vehicle becomes
stuck ............................... 540
Page 482 of 612
482
COROLLA_TMMMS_TMMC_U (OM12F00U)
8-1. Essential information
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch
once again.
■Emergency flashers
If the emergency flashers are used for a long time while the engine is not
operating, the battery may discharge.
Emergency flashers
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in the road due to a breakdown, etc.
Page 498 of 612

4988-2. Steps to take in an emergency
COROLLA_TMMMS_TMMC_U (OM12F00U)
OnceContinuous
(5 seconds)
(Flashes in yel-
low)
Smart key system indicator light
An attempt was made to exit the vehicle with
the electronic key and lock the doors without
first turning the engine switch off.
Turn the engine switch off and lock the
doors again.
Once
(Flashes in yel-
low for 15 sec-
onds)
Smart key system indicator light
Indicates that the electronic key is not present
when attempting to start the engine.
Confirm the location of the electronic key.
9 times
(Flashes in yel-
low)
Smart key system indicator light
An attempt was made to drive when the regu-
lar key was not inside the vehicle.
Confirm that the electronic key is inside
the vehicle.
Once(Flashes in yel-
low for 15 sec-
onds)
Smart key system indicator light
Indicates that the electronic key battery is low.
Replace the battery.
(P. 464)
Once(Flashes quickly
in green for 15
seconds)
Smart key system indicator light
Indicates that the steering lock has not been
released.
Release the steering lock. (P. 169)
Once(Flashes in yel-
low for 30 sec-
onds)
Smart key system indicator light
• When the doors were unlocked with the
mechanical key and then the engine switch
was pressed, the electronic key could not be
detected in the vehicle.
• The electronic key could not be detected in
the vehicle even after the engine switch was
pressed two consecutive times.
Vehicles with a continuously variable
transmission: Touch the electronic key to
the engine switch while depressing the
brake pedal.
Vehicles with a manual transmission:
Touch the electronic key to the engine
switch while depressing the clutch pedal.
Interior
buzzerExterior
buzzerWarning
lightWarning light/Details/Action
Page 500 of 612

5008-2. Steps to take in an emergency
COROLLA_TMMMS_TMMC_U (OM12F00U)■
When a tire is replaced with a spare tire (vehicles with a tire pressure
warning system)
The compact spare tire is not equipped with a tire pressure warning valve
and transmitter. If a tire goes flat, the tire pressure warning light will not
turn off even though the flat tire has been replaced with the spare tire.
Replace the spare tire with the repaired tire and adjust the tire inflation
pressure. The tire pressure warning light will go off after a few minutes.
■Conditions that the tire pressure warning system may not function
properly (vehicles with a tire pressure warning system)
The tire pressure warning system will be disabled in the following condi-
tions:
(When the condition becomes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmitters
are used
●If the ID code on the tire pressure warning valves and transmitters is not
registered in the tire pressure warning computer
●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or
higher
The tire pressure warning system may be disabled in the following condi-
tions:
(When the condition becomes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies are
nearby
●If a radio set at similar frequency is in use in the vehicle
●If a window tint that affects the radio wave signals is installed
●If there is a lot of snow or ice on the vehicle, in particular around the
wheels or wheel housings
●If non-genuine Toyota wheels are used (Even if you use Toyota wheels,
the tire pressure warning system may not work properly with some types
of tires.)
●If tire chains are used
■If the tire pressure warning light frequently comes on after blinking
for 1 minute (vehicles with a tire pressure warning system)
If the tire pressure warning light frequently comes on after blinking for 1
minute when the engine switch is turned on, have it checked by your
Toyota dealer.
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an
audio sound.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and the
warning buzzer may sound.
Page 509 of 612
5098-2. Steps to take in an emergency
8
When trouble arises
COROLLA_TMMMS_TMMC_U (OM12F00U)
9
times
An attempt was made to drive
when the regular key was not
inside the vehicle.
Confirm that the elec-
tronic key is inside the
vehicle.
Contin-
uous
(5 sec-
onds)
An attempt was made to lock
the doors using the smart key
system while the electronic key
was still inside the vehicle.
Retrieve the electronic key
from the vehicle and lock
the doors again.
Once
Contin-
uous
(5 sec-
onds)
An attempt was made to lock
either front door by opening a
door and putting the inside lock
button into the lock position,
then closing the door by pulling
on the outside door handle with
the electronic key still inside the
vehicle.
Retrieve the electronic key
from the vehicle and lock
the doors again.
Once
The electronic key has a low
battery.
Replace the electronic key
battery. (P. 464)
Interior
buzzerExterior
buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)