2017 Lexus CT200h ECU

731-2. Hybrid system
CT200h_OM_OM76215U_(U)
1
For safety and security
■If a warning light comes on, a warning message is displayed, or the 12-volt battery is dis-
connected
The hybrid system may not start. In this case, try to start the system again. If the “READY”
indicator does not come on, contact your Lexus dealer.
■Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be started, refuel the
vehicle with at least enough gasoline to make the low fuel level warning light (P. 5 3 7 )
go off. If there is only a small amount of fu el, the hybrid system may not be able to start.
(The minimum amount of fuel to add to make the low fuel level warning light go out is
about 3.1 gal. [11.8 L, 2.6 Imp.gal.], when the vehicle is on a level surface. This value may
vary when the vehicle is on a slope. Add extra fuel when the vehicle is inclined.)
■Electromagnetic waves
●High voltage parts and cables on hybrid ve hicles incorporate electromagnetic shield-
ing, and therefore emit approximately the same amount of electromagnetic waves as
conventional gasoline powered vehicl es or home electronic appliances.
●Your vehicle may cause sound interference in some third party-produced radio parts.
■Hybrid battery (traction battery)
The hybrid battery (traction battery) has a limited service life. The lifespan of the hybrid
battery (traction battery) can change in accordance with driving style and driving condi-
tions.
WA R N I N G
■High voltage precautions
This vehicle has high voltage DC and AC systems as well as a 12-volt system. DC and
AC high voltage is very dangerous and can cause severe burns and electric shock that
may result in death or serious injury.
●Never touch, disassemble, remove or replace the high voltage parts, cables or their
connectors.
●The hybrid system will become hot after star ting as the system uses high voltage. Be
careful of both the high voltage and the high temperature, and always obey the cau-
tion labels attached to the vehicle.
●Never try to open the service plug access
hole located in the luggage compartment.
The service plug is used only when the vehicle
is serviced and is subject to high voltage.

751-2. Hybrid system
CT200h_OM_OM76215U_(U)
1
For safety and security
NOTICE
■Hybrid battery air vent
●Do not put foreign objects near the air vent . The hybrid battery (traction battery) may
overheat and be damaged.
●Clean the air vent regularly to prevent the hybrid battery (traction battery) from over-
heating.
●Do not wet or allow foreign substances to enter the air vent as this may cause a short
circuit and damage the hybrid battery (traction battery).
●Do not carry large amounts of water such as water cooler bottles in the vehicle. If
water spills onto the hybrid battery (tr action battery), the battery may be damaged.
Have the vehicle inspected by your Lexus dealer.

761-3. Theft deterrent system
CT200h_OM_OM76215U_(U)
Immobilizer system
The indicator light flashes after the
power switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the power switch has been turned to
ACCESSORY or ON mode to indi-
cate that the system has been canceled.
■System maintenance
The vehicle has a maintenance-free type immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touching a key registered to the security system (key
with a built-in transponder chip) of another vehicle
The vehicle’s keys have built-in transponder chips that prevent the hybrid sys-
tem from starting if a key has not been previously registered in the vehicle’s
on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
This system is designed to help prevent vehicle theft but does not guarantee
absolute security against all vehicle thefts.

771-3. Theft deterrent system
CT200h_OM_OM76215U_(U)
1
For safety and security
■Certification for the immobilizer system
For vehicles sold in the U.S.A., Hawaii , Guam, Puerto Rico and NATO Germany
For vehicles sold in Canada
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation of
the system cannot be guaranteed.

791-3. Theft deterrent system
CT200h_OM_OM76215U_(U)
1
For safety and security
■Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
In the following cases, depending on the si tuation, the door may automatically lock to
prevent improper entry into the vehicle:
●When a person remaining in the vehicle unlocks the door and the alarm is activated.
●While the alarm is activated, a person re maining in the vehicle unlocks the door.
●When recharging or replacing the 12-volt battery.
●A person inside the vehicle opens a door or
hood.
●The 12-volt battery is recharged or replaced
when the vehicle is locked. (P. 5 7 0 )
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation of
the system cannot be guaranteed.

107
CT200h_OM_OM76215U_(U)3-2. Opening, closing
and locking the doors
3
Operation of each component
Side doors
◆Smart access system with push-button start
Carry the electronic key to enable this function.
Grip the driver’s door handle to
unlock the door. Grip the passen-
ger’s door handle to unlock all the
doors.
*
Make sure to touch the sensor on the
back of the handle.
The doors cannot be unlocked for
3 seconds after the doors are locked.
*: The door unlock settings can bechanged. ( P. 5 9 8 )
Touch the lock sensor (the indentation on the upper part of the front door
handle) to lock the doors.
Check that the door is securely locked.
◆Wireless remote control
Locks all the doors
Check that the door is securely
locked.
Unlocks all the doors
Pressing the button unlocks the
driver’s door. Pressing the button
again within 3 seconds unlocks the
other doors.
Press and hold to open the windows
*
*
: This setting must be customized at your Lexus dealer.
The vehicle can be locked and unlock ed using the entry function, wireless
remote control or door lock switch.
Locking and unlocking the doors from the outside
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2
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2

108
CT200h_OM_OM76215U_(U)3-2. Opening, closing and locking the doors
■Operation signals
Doors:
A buzzer sounds and the emergency flashers
flash to indicate that the doors have been
locked/unlocked. (Locked: Once; Unlocked: Twice)
Windows:
A buzzer sounds to indicate that the windows are opening.
■Security feature
If a door is not opened within approximately 60 seconds after the vehicle is unlocked, the
security feature automatically locks the vehicle again.
■Welcome light illumination control
The side marker, parking, tail and license plat e lights automatically turn on at night when
the doors are unlocked using the entry functi on or wireless remote control if the light
switch is in the “AUTO” position.
■When the door cannot be locked by the lock sensor on the upper part of the door han-
dle
■Door lock buzzer
If an attempt to lock the doors is made when a door is not fully closed, a buzzer sounds
continuously for 5 seconds. Fully close the door to stop the buzzer, and lock the vehicle
once more.
■Setting the alarm
Locking the doors will set the alarm system. ( P. 7 8 )
■If the smart access system with push-butto n start or the wireless remote control does
not operate properly
●Use the mechanical key to lock and unlock the doors. ( P. 5 6 6 )
●Replace the key battery with a new one if it is depleted. ( P. 5 0 9 )
If the door will not lock even when the topside
sensor area is touched, try touching both the
topside and underside sensor areas at the same
time.

112
CT200h_OM_OM76215U_(U)3-2. Opening, closing and locking the doors
Back door
◆Smart access system with push-button start
Carry the electronic key to enable
this function.
Locks all the doors
Check that the door is securely
locked.
Unlocks all the doors
The doors cannot be unlocked for 3
seconds after the doors are locked.
◆Wireless remote control
P. 1 0 2
◆Door lock switch
P. 1 0 9
The back door can be locked/unlocke d and opened by the following proce-
dures.
Locking and unlocking the back door
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2