ECU Lexus ES300h 2015 Service Manual

851-3. Theft deterrent system
ES350_300h_OM_OM33B36U_(U)
1
For safety and security
■Certifications for the engine immobilizer system
XFor vehicles sold in the U.S.A.
XFor vehicles sold in Canada
CAUTION
■Certifications for the engine immobilizer system
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
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.

861-3. Theft deterrent system
ES350_300h_OM_OM33B36U_(U)
Immobilizer system (hybrid vehicles)
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 indicate 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 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 system from starting if a ke y 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 pr event vehicle theft but does not guar-
antee absolute security agai nst all vehicle thefts.

871-3. Theft deterrent system
ES350_300h_OM_OM33B36U_(U)
1
For safety and security
■Certifications for the immobilizer system
XFor vehicles sold in the U.S.A.
XFor vehicles sold in Canada
CAUTION
■Certifications for the immobilizer system
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
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.

891-3. Theft deterrent system
ES350_300h_OM_OM33B36U_(U)
1
For safety and security
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the fol-
lowing:
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
●The 12-volt battery is recharged or replaced when the vehicle is locked.
(→ P. 682, 686)
●A person inside the vehicle opens a door,
the trunk or hood.
XGasoline vehicles
XHybrid vehicles

127
ES350_300h_OM_OM33B36U_(U)
3-2. Opening, closing and locking the doors and trunk
3
Operation of each component
Smart access system with push-button start
The following operations can be performed simply by carrying the elec-
tronic key on your person, for example in your pocket. (The driver should
always carry the electronic key.)
■Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors have
been locked/unlocked. (Locked: once; Unlocked: twice)
■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 plate lights automatically turn on at night
when the doors are unlocked using the entry function or wireless remote control if
the light switch is in the “AUTO” position.
Function summary
Hybrid vehiclesGasoline vehicles
Locks and unlocks the doors (→P. 1 2 8 )
Opens the trunk ( →P. 1 2 8 )
Starts the engine ( →P. 205)
Starts the hybrid system ( →P. 212)1
2
3

128
ES350_300h_OM_OM33B36U_(U)
3-2. Opening, closing and locking the doors and trunk
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. 1 3 2 )
Touch the lock sensor (the indenta-
tion on the upper part of the door
handle) to lock all the doors.
Check that the door is securely
locked.
Press the button.
If the vehicle is equipped with power
trunk opener and closer, the trunk lid
automatically opens fully.
Unlocking and locking the doors
Opening the trunk

141
ES350_300h_OM_OM33B36U_(U)
3-2. Opening, closing and locking the doors and trunk
3
Operation of each component
Wireless remote control
The wireless remote control can be used to lock and unlock the vehicle.
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 5 seconds unlocks the
other doors.
Opens the windows and moon
roof (press and hold)
*
Opens the trunk
(press and hold)
If the vehicle is equipped with a power
trunk opener and closer, the trunk lid
automatically opens fully.
Sounds the alarm
(press and hold) ( →P. 142)
*: This setting must be customized at
your Lexus dealer.
Function summary
1
2
3
4
5

142
ES350_300h_OM_OM33B36U_(U)
3-2. Opening, closing and locking the doors and trunk
■Operation signals
Doors:
A buzzer sounds and the emergency flashers flash to indicate that the doors have
been locked/unlocked. (Locked: once; Unlocked: twice)
Tr u n k :
A buzzer sounds to indicate that the trunk has been opened.
Windows and moon roof:
A buzzer sounds to indicate that the windows and moon roof are operating.
■Welcome light illumination control
→P. 1 2 7
■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 cl ose the door to stop the buzzer, and lock
the vehicle once more.
■Pa ni c m o d e
■Security feature
→ P. 1 2 7
■Alarm
Using the wireless remote control to lock the doors will set the alarm system.
(→ P. 8 8 )
■Conditions affecting operation
→P. 1 3 4
■If the wireless remote control does not operate properly
Locking and unlocking the doors and opening the trunk: Use the mechanical key.
(→ P. 677)
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
electronic key.

150
ES350_300h_OM_OM33B36U_(U)
3-2. Opening, closing and locking the doors and trunk
Pressing the switch closes the trunk
lid automatically. (A buzzer sounds.)
Pressing the switch while the trunk lid
is closing opens the trunk lid again.
Using the trunk grip, lower the trunk
without applying force to the side
and push the trunk down from the
outside to close it.
The trunk opener switch can be temporarily disabled to protect luggage
stored in the trunk against theft.
Turn the main switch in the glove
box off to disable the trunk opener.On
Off
The trunk lid cannot be opened even
with the wireless remote control or the
entry function.
Trunk closer switch (vehicles with power trunk opener and closer)
When closing the trunk
Luggage security system
1
2

ES350_300h_OM_OM33B36U_(U)
1533-2. Opening, closing and locking the doors and trunk
3
Operation of each component
CAUTION
■Using the trunk
Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resulting in serious
injury.
●Remove any heavy loads, such as snow and ice, from the trunk lid before opening
it. Failure to do so may cause the trunk lid to suddenly shut again after it is opened.
●When opening or closing the trunk lid, thoroughly check to make sure the sur-
rounding area is safe.
●If anyone is in the vicinity, make sure they are safe and let them know that the
trunk is about to open or close.
●Use caution when opening or closing the trunk lid in windy weather as it may
move abruptly in strong wind.
●Vehicles without power trunk opener and
closer: The trunk lid may suddenly shut if it
is not opened fully. It is more difficult to
open or close the trunk lid on an incline
than on a level surface, so beware of the
trunk lid unexpectedly opening or closing
by itself. Make sure that the trunk lid is fully
open and secure before using the trunk.