2012 Lexus CT200h Battery

527
4-3. Do-it-yourself maintenance
4
Maintenance and care
CT200h_OM_OM76067E_(EE)
Electronic key battery
Replace the battery with a new one if it is depleted.
You will need the following items:
Flathead screwdriver
Small Phillips-head screwdriver
Lithium battery CR1632
Replacing the battery
Type A
Take out the mechanical key.
Remove the cover.
STEP1
STEP2

528
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)
Remove the battery cover
bolts and remove the battery
cover.
Remove the depleted battery.
Insert a new battery with the
“+” terminal facing up.
STEP3
STEP4

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4-3. Do-it-yourself maintenance
4
Maintenance and care
CT200h_OM_OM76067E_(EE)
Type B
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.
STEP1
STEP2
STEP3

530
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)
Use a CR1632 lithium battery
Batteries can be purchased at any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional, local electrical appli-
ance shops or camera stores.
Replace only with the same or equivalent type recommended by the
manufacturer.
Dispose of used batteries according to local laws.
When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealer. Your Lexus
dealer can replace the battery for you.
If the electronic key battery is depleted
The following symptoms may occur:
The smart entry & start system, push-button start system and wireless
remote control will not function properly.
The operational range will be reduced.

531
4-3. Do-it-yourself maintenance
4
Maintenance and care
CT200h_OM_OM76067E_(EE)
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.
Certification for the smart entry & start system and push-button start system
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCOR-
RECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE
INSTRUCTIONS.
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.

539
4-3. Do-it-yourself maintenance
4
Maintenance and care
CT200h_OM_OM76067E_(EE)
38EFI NO. 210 A
Multiport fuel injection system/
sequential multiport fuel injection
system, exhaust system, key off
pump module, electric cooling
fans
39M-HTR10 AOutside rear view mirror defoggers
40SPARE30 ASpare fuse
41SPARE10 ASpare fuse
42SPARE7.5 ASpare fuse
43EFI MAIN20 A
Multiport fuel injection system/
sequential multiport fuel injection
system, cooling system, EFI NO.2
44BATT FAN10 ABattery cooling fan
45IG220 A
Hybrid system, multiport fuel
injection system/sequential multi-
port fuel injection system, MET,
IGN, power management system
FuseAmpereCircuit

5When trouble arises
561
CT200h_OM_OM76067E_(EE)
5-1. Essential information
Emergency flashers .......... 562
If your vehicle needs to
be towed ......................... 563
If you think something
is wrong ......................... 5705-2. Steps to take in an
emergency
If a warning light turns
on or a warning buzzer
sounds ............................ 571
If a warning message is
displayed ........................ 578
If you have a flat tire
(vehicles with a
spare tire) ....................... 599
If you have a flat tire
(vehicles without a
spare tire) ....................... 613
If the hybrid system will
not start .......................... 627
If you lose your keys ....... 629
If the electronic key does
not operate properly....... 630
If the 12-volt battery
is discharged .................. 633
If your vehicle overheats . 639
If the vehicle becomes
stuck............................... 644
If your vehicle has to be
stopped in an
emergency...................... 646

562
CT200h_OM_OM76067E_(EE)
5-1. Essential information
Emergency flashers
Emergency flashers
If the emergency flashers are used for a long time while the hybrid system is
not operating (while the “READY” indicator is not illuminated), the 12-volt
battery may discharge.
The emergency flashers are used to warn other drivers when the vehi-
cle has to be stopped in the road due to a breakdown, etc.
Press the switch.
All the turn signal lights will
flash. To turn them off, press
the switch once again.