2018 TOYOTA COROLLA iM key battery

853-1. Key information
3
Operation of each component
COROLLA iM_U (OM12M42U)
■Panic mode
■ If you lose your keys
New genuine keys can be made by your Toyota dealer using the other key
and the key number stamped on your key number plate. Keep the plate in a
safe place such as your wallet, not in the vehicle.
■ When riding in an aircraft
When bringing a key with wireless remote control function onto an aircraft,
make sure you do not press any buttons on the key while inside the aircraft
cabin. If you are carrying the key in your bag, etc., ensure that the buttons are
not likely to be pressed accidentally. Pressing a button may cause the key to
emit radio waves that could interfere with the operation of the aircraft.
■ Conditions affecting the operatio n of the wireless remote control
The wireless remote control function may not operate normally in the follow-
ing situations:
● When the wireless key battery is depleted
● Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electrical
noise
● When carrying a portable radio, cellul ar phone or other wireless communi-
cation devices
● When multiple wireless keys are in the vicinity
● When the wireless key is in contact with, or is covered by a metallic object
● When a wireless key (that emits radio waves) is being used nearby
● When the wireless key has been left near an electrical appliance such as a
personal computer
● If window tint with a metallic content or metallic objects are attached to the
rear window
When is pressed for longer than
about one second, an alarm will sound
intermittently and the vehicle lights will
flash to deter any person from trying to
break into or damage your vehicle.
To stop the alarm, press any button on the
wireless remote control.

863-1. Key information
COROLLA iM_U (OM12M42U)■
Key battery depletion
If the wireless remote control function does not operate, the battery may be
depleted. Replace the battery when necessary. (→ P. 267)
■ When the key battery is fully depleted
→P. 267
■ If a wrong key is used
The key cylinder rotates freely, isolated from the internal mechanism.
■ Customization
Settings (e.g. wireless remote control system) can be changed.
(Customizable features: →P. 349)
■ Certification for the wi reless remote control
For vehicles sold in the U.S.A.
FCC ID: HYQ23AAH
NOTE:
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
FCC ID: HYQ12BFA
NOTE:
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
The FCC ID/IC Certification number is affixed inside the equipment. You can
find the ID/number when replacing the battery.
For vehicles sold in Canada
FCC ID: HYQ12BFA
NOTE:
This device complies with Industry Canada's licence-exempt RSSs.
Operation is subject to the following two conditions:
(1) This device may not cause interference; and
(2) This device must accept any interference, including interference that may
cause undesired operation of the device.
The FCC ID/IC Certification number is affixed inside the equipment. You can
find the ID/number when replacing the battery.

88
COROLLA iM_U (OM12M42U)
3-2. Opening, closing and locking the doors
◆Wireless remote controlLocks all the doors
Check that the door is securely
locked.
Unlocks all the doors
Pressing the button unlocks the
driver’s door. Pressing the but-
ton again within 5 seconds
unlocks the other doors.
◆Key
Turning the key operates the doors as follows: Locks all the doors
Unlocks all the doors
Turning the key unlocks the
driver's door. Turning the key
again unlocks the other doors.
■Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors
have been locked/unlocked using the wireless remote control. (Locked: once;
Unlocked: twice)
■ Security feature
If a door is not opened within approximately 60 seconds after the vehicle is
unlocked using the wireless remote control, the security feature automatically
locks the vehicle again.
■ Door lock buzzer
If an attempt to lock the doors using the wireless remote control is made
when a door is not fully closed, a buzzer will sound continuously for 5 sec-
onds. Fully close the door to stop the buzzer, and lock the doors again.
■ If the wireless remote cont rol does not operate properly
Replace the battery with a new one if it is depleted. ( →P. 267)
Side doors
Unlocking and locking the doors from the outside
1
2
1
2

1444-3. Operating the lights and wipers
COROLLA iM_U (OM12M42U)■
Automatic light off system
●When the headlights are on: The headlights and tail lights turn off 30 sec-
onds after the engine switch is turned to the “ACC” or “LOCK” position and a
door is opened and closed. (The lights turn off immediately if on the
key is pressed after all the doors are locked.)
● When only the tail lights are on: The tail lights turn off automatically if the
engine switch is turned to the “ACC” or “LOCK” position and the driver’s
door is opened.
To turn the lights on again, turn the engine switch to “ON” position, or turn the
light switch off once and then back to or .
If any of the doors is kept open, the lights automatically turn off after 20 min-
utes.
■ Light reminder buzzer
A buzzer sounds when the engine switch is turned to “LOCK” position and the
driver's door is opened while the lights are turned on.
■ Battery-saving function
In the following conditions, the headlights and the other remaining lights will
go off automatically after 20 minutes in order to prevent the vehicle battery
from being discharged:
●The headlights and/or tail lights are on.
● The engine switch is in the “ACC” or “LOCK” position.
This function will be canceled in any of the following situations:
● When the engine switch is turned to the “ON” position.
● When the light switch is operated
● When the door is opened or closed
■ Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: →P. 349)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not
running.

2676-3. Do-it-yourself maintenance
6
Maintenance and care
COROLLA iM_U (OM12M42U)
●Flathead screwdriver
● Small flathead screwdriver
● Lithium battery CR1620
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.
Remove the battery cover.
Remove the depleted battery
using a small flathead screw-
driver.
Insert a new battery with the “+”
terminal facing up.
Wireless remote control battery
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
1
2
3

2686-3. Do-it-yourself maintenance
COROLLA iM_U (OM12M42U)
■Use a CR1620 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 wireless remote control will not function properly.
● The operational range will be reduced.
WARNING
■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.

370
COROLLA iM_U (OM12M42U)
What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your keys, new genuine keys can be made by your Toyota
dealer. (→P. 85)
●Is the key battery weak or depleted? ( →P. 267)
●The function may not operate properly due to the condition of the radio
wave. (→P. 85)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. (→P. 90)
If you have a problem, check the following before contacting
your Toyota dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

371What to do if... (Troubleshooting)
COROLLA iM_U (OM12M42U)
●Vehicles with a manual transmission:
Do you turn the key with the clutch pedal depressed firmly?
(→P. 128)
●Vehicles with a continuously variable transmission:
Is the shift lever in P? ( →P. 128)
●Is the steering wheel unlocked? ( →P. 129)
●Is the battery discharged? (→P. 315)
●Is the engine switch in the “ON” position?
If you cannot release the shift lever by depressing the brake pedal with the
engine switch in the “ON” position. ( →P. 135)
●It is locked to prevent theft of the vehicle if the key is pulled from the engine
switch. (→P. 128)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( →P. 106)
If you think something is wrong
The engine does not start
The shift lever cannot be shifted from P even if you depress
the brake pedal (vehicles with a continuously variable trans-
mission)
The steering wheel cannot be turned after the engine is
stopped
The windows do not open or close by operating the power
window switches