Page 525 of 688

5217-3. Do-it-yourself maintenance
CT200h_OM_OM76102E_(EE)
7
Maintenance and care
WA R N I N G
When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as danger-
ous handling characteristics, which may lead to an accident resulting in death
or serious injury.
Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
Do not use tire sizes other than those recommended by Lexus.
Do not mix differently constructed tires (radial, bias-belted or bias-ply tires).
Do not mix summer, all season and snow tires.
Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
Vehicles with a compact spare tire: Do not tow if your vehicle has a compact
spare tire installed.
Vehicles with an emergency tire puncture repair kit: Do not tow anything if a
tire that has been repaired using the emergency tire puncture repair kit is
installed. The load on the tire may cause unexpected damage to the tire.
When initializing the tire pressure warning system
Do not operate the tire pressure warning reset switch without first adjusting the
tire inflation pressure to the specified level. Otherwise, the tire pressure warn-
ing light may not come on even if the tire inflation pressure is low, or it may
come on when the tire inflation pressure is actually normal.
Page 577 of 688

5738-2. Steps to take in an emergency
CT200h_OM_OM76102E_(EE)
8
When trouble arises
When a tire is replaced with a spare tire (vehicles with a compact spare tire and
the 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 (vehi-
cles with the tire pressure warning system)
P. 514
If the tire pressure warning light frequently comes on after blinking for 1 minute
(vehicles with the tire pressure warning system)
If the tire pressure warning light frequently comes on after blinking for 1 minute
when the power switch is turned to ON mode, have it checked by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or
audio sound.
WA R N I N G
If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional. The
vehicle will become extremely unstable during braking, and the ABS system
may fail, which could cause an accident resulting in death or serious injury.
When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold firmly
and operate using more force than usual.
Page 588 of 688

5848-2. Steps to take in an emergency
CT200h_OM_OM76102E_(EE)
*: For the EV drive mode operating conditions: P. 201
(If equipped)
Indicates that the pre-crash safety system is not cur-
rently functional because the grille cover or the sen-
sor is dirty
This message also appears when the pre-crash
safety system is not functional due to overheat-
ing.
Check the grille cover and the sensor and clean
them if they are dirty.
In case of overheating, the system will become
functional once the system cools down.
Indicates that the EV drive mode is not available*The reason the EV drive mode is not available
(the vehicle is idling, battery charge is low, speed
is higher than the EV drive mode operating speed
range, accelerator pedal is depressed too much)
may be displayed.
A buzzer also sounds.
Use the EV drive mode when it becomes avail-
able.
Indicates that the EV drive mode has been automat-
ically canceled
*
The reason the EV drive mode is not available
(the battery charge is low, speed is higher than the
EV drive mode operating speed range, accelera-
tor pedal is depressed too much) may be dis-
played.
A buzzer also sounds.
Drive the vehicle for a while.
Warning messageDetails/Actions
(Flashes 3
times)
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 625 of 688

6218-2. Steps to take in an emergency
CT200h_OM_OM76102E_(EE)
8
When trouble arises
One of the following may be the cause of the problem:
The 12-volt battery may be discharged. (P. 624)
One or both of the 12-volt battery terminals may be disconnected. (P.
504)
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional if the problem cannot be repaired, or if repair proce-
dures are unknown.
When the hybrid system does not start, the following steps can be used as
an interim measure to start the hybrid system if the power switch is func-
tioning normally. Do not use this starting procedure except in cases of
emergency.
Set the parking brake.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while depressing
the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the system
may be malfunctioning. Have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.
The interior lights and headlights do not turn on, or the horn does
not sound.
Emergency start function
1
2
3
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 )
4
5
6
7
8
9
Page 662 of 688
6589-2. Customization
CT200h_OM_OM76102E_(EE)
Automatic air conditioning system (P. 442, 452)
Power windows (P. 178)
*: This function cannot be customized unless power window operation using the
wireless remote control is enabled
FunctionDefault
settingCustomized
setting
Switching between outside
air and recirculated air
mode linked to “AUTO”
switch operation
OnOffO––O
A/C Auto switch operationOnOffO–OO
Heating/cooling operation
minimized in Eco drive
modeOnOff–––O
1234
FunctionDefault
settingCustomized
setting
Mechanical key linked
operation (close)OffOn–––O
Mechanical key linked
operation (open)OffOn–––O
Wireless remote control
linked operation (close)OffOn–––O
Wireless remote control
linked operation (open)OffOn–––O
Buzzer sounds if operated
using wireless remote con-
trol
*
OnOff–––O
1234