Page 537 of 688

5337-3. Do-it-yourself maintenance
CT200h_OM_OM76102E_(EE)
7
Maintenance and care
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 appliance
shops or camera stores.
Replace only with the same or equivalent type recommended by the manufac-
turer.
Dispose of used batteries according to the local laws.
When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealers. any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional can
replace the battery for you.
If the electronic key battery is depleted
The following symptoms may occur:
The smart entry & start system and wireless remote control will not function
properly.
The operational range will be reduced.
WA R N I N G
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
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
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.
Page 563 of 688
559
8When trouble arises
CT200h_OM_OM76102E_(EE)
8-1. Essential information
Emergency flashers........... 560
If your vehicle has to
be stopped in an
emergency....................... 561
8-2. Steps to take in an emergency
If your vehicle needs to be
towed .............................. 562
If you think something is
wrong .............................. 567
If a warning light turns on
or a warning buzzer
sounds ............................. 568
If a warning message is
displayed ......................... 575
If you have a flat tire (vehicles
with a spare tire) ............. 590
If you have a flat tire (vehicles
without a spare tire) ........ 604
If the hybrid system will not
start ................................. 619
If the electronic key does not
operate properly .............. 621
If the 12-volt battery is
discharged ....................... 623
If your vehicle overheats .. 628
If the vehicle becomes
stuck................................ 632
Page 590 of 688
5868-2. Steps to take in an emergency
CT200h_OM_OM76102E_(EE)
Interior
buzzerExterior
buzzerWarning messageDetails/Actions
Power was turned off due to the
automatic power off function.
Next time when starting the
hybrid system, increase the
engine speed slightly and
maintain that level for approx-
imately 5 minutes to recharge
the 12-volt battery.
Con-
tinu-
ous
The driver’s door was opened
while any shift position other
than P was selected without turn-
ing off the power switch.
Shift the shift position to P.
Con-
tinu-
ousCon-
tinu-
ous
The electronic key was carried
outside the vehicle and the
driver’s door was opened and
closed while any shift position
other than P was selected without
turning off the power switch.
Shift the shift position to P.
Bring the electronic key back
into the vehicle.
(Flashes)
(Displayed alternately)
(Displayed alternately)
(Flashes)
Page 594 of 688
5908-2. Steps to take in an emergency
CT200h_OM_OM76102E_(EE)
Warning messages
P. 585
Warning buzzer
P. 573
Once
The driver’s door was opened and
closed with the power switch
turned off and then the power
switch was put in ACCESSORY
mode twice without the hybrid
system being started.
Press the power switch while
depressing the brake pedal.
During a hybrid system starting
procedure in the event that the
electronic key was not function-
ing properly (P. 623), the
power switch was touched with
the electronic key.
Press the power switch within
10 seconds of the buzzer
sounding.
Once
An attempt was made to start the
hybrid system with the shift posi-
tion in N.
Shift the shift position to P
and start the hybrid system.
Once
The electronic key has a low bat-
tery.
Replace the electronic key
battery. (P. 530)
Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
Page 624 of 688

6208-2. Steps to take in an emergency
CT200h_OM_OM76102E_(EE)
If the hybrid system will not start
One of the following may be the cause of the problem:
The electronic key may not be functioning properly.* (P. 622)
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. (P. 8 3 )
There may be a malfunction in the immobilizer system.* (P. 8 7 )
There may be a malfunction in the P position control system.*
(P. 199, 581)
The hybrid system may be malfunctioning due to an electrical problem
such as electronic key battery depletion or a blown fuse. However,
depending on the type of malfunction, an interim measure is available
to start the hybrid system. (P. 621)
*: It may not be possible to shift the shift position other than P.
One of the following may be the cause of the problem:
The 12-volt battery may be discharged. (P. 624)
The 12-volt battery terminal connections may be loose or corroded.
(P. 504)
Reasons for the hybrid system not starting vary depending on the situa-
tion. Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. (P. 196)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
Page 626 of 688
6228-2. Steps to take in an emergency
CT200h_OM_OM76102E_(EE)
If the electronic key does not operate properly
Use the mechanical key (P. 127)
in order to perform the following
operations:
Locks all the doors
Closes the windows
* (turn and
hold)
Unlocks all the doors
Opens the windows
* (turn and
hold)
*: These settings must be customized at any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
If communication between the electronic key and vehicle is interrupted (P.
145) or the electronic key cannot be used because the battery is depleted, the
smart entry & start system and wireless remote control cannot be used. In
such cases, the doors can be opened and the hybrid system can be started by
following the procedure below.
Locking and unlocking the doors and key linked functions
1
2
3
4
Page 627 of 688

6238-2. Steps to take in an emergency
CT200h_OM_OM76102E_(EE)
8
When trouble arises
Depress the brake pedal.
Touch the Lexus emblem side of
the electronic key to the power
switch.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm will
sound to indicate that the start func-
tion cannot detect the electronic key.
Press the power switch within 10 seconds of the buzzer sounding,
keeping the brake pedal depressed.
In the event that the hybrid system still cannot be operated, contact any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
Stopping the hybrid system
Set the parking brake, shift the shift position to P and press the power switch as
you normally do when stopping the hybrid system.
Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted. (P.
530)
Alarm (if equipped)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set, the
alarm may be triggered. (P. 9 3 )
Changing power switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the
power switch.
The hybrid system does not start and modes will be changed each time the switch
is pressed. (P. 198)
Starting the hybrid system
1
2
3
Page 630 of 688

6268-2. Steps to take in an emergency
CT200h_OM_OM76102E_(EE)
Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the 12-volt battery of your vehicle.
Open and close any of the doors of your vehicle with the power switch
off.
Maintain the engine speed of the second vehicle and start the hybrid
system of your vehicle by turning the power switch to ON mode.
Make sure the “READY” indicator comes on. If the indicator light
does not come on, contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
Once the hybrid system has started, remove the jumper cables in the
exact reverse order from which they were connected.
Close the exclusive jump starting terminal cover, and reinstall the fuse
box cover to its original position.
Once the hybrid system starts, have the vehicle inspected at any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped
professional as soon as possible.
Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
To prevent 12-volt battery discharge
Turn off the headlights and the audio system while the hybrid system is off.
Turn off any unnecessary electrical components when the vehicle is running at
a low speed for an extended period, such as in heavy traffic.
When the 12-volt battery is removed or discharged
The hybrid system may not start. (P. 507)
If the 12-volt battery discharges while the shift position is in P, it may not be
possible to shift the shift position to other positions. In this case, the vehicle
cannot be towed without lifting both front wheels because the front wheels will
be locked. (P. 562)
When the 12-volt battery is reconnected, start the hybrid system and confirm
that the shift position can be changed to each position using the shift position
indicator.
Make sure that the key is not inside the vehicle when recharging or replacing
the 12-volt battery. The key may be locked in the vehicle if the alarm is acti-
vated. (P. 9 3 )
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7
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