Page 96 of 628
951-3. Theft deterrent system
1
For safety and security
IS300h_EE(OM53B95E)
Vehicles employing this system
have labels on the window glass of
both front doors.
Turn the power switch off, have all the passengers exit the vehicle and
ensure that all the doors are closed.
Using the entry function:
Touch the sensor area on the outside door handle twice within 5 seconds.
Using the wireless remote control:
Press twice within 5 seconds.
Using the entry function: Hold the outside door handle.
Using the wireless remote control: Press .
Double locking system
Unauthorized access to the vehicle is prevented by disabling the door
unlocking function from both the interior and exterior of the vehicle.
Setting the double locking system
Canceling the double locking system
CAUTION
Double locking system precaution
Never activate the double locking system when there are people in the vehicle
because all the doors cannot be opened from inside the vehicle.
Page 97 of 628
961-3. Theft deterrent system
IS300h_EE(OM53B95E)
The alarm uses light and sound to give an alert when an intrusion is
detected.
The alarm is triggered in the following situations when the alarm is set:
A locked door or trunk is unlocked or opened in any way other than
using the entry function or wireless remote control. (The door will lock
again automatically.)
The hood is opened.
The intrusion sensor detects something moving inside the vehicle. (An
intruder gets in the vehicle.) (if equipped)
The tilt sensor detects a change of vehicle inclination. (if equipped)
Close the doors, trunk and hood,
and lock all the doors using the
entry function or wireless remote
control. The system will be set auto-
matically after 30 seconds.
The indicator light changes from
being on to flashing when the system
is set.
Alarm
: If equipped
The alarm
Setting the alarm system
Page 98 of 628
971-3. Theft deterrent system
1
For safety and security
IS300h_EE(OM53B95E)
Do one of the following to deactivate or stop the alarm:
Unlock the doors or open the trunk using the entry function or wireless
remote control.
Start the hybrid system. (The alarm will be deactivated or stopped after
a few seconds.)
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
following:
Nobody is in the vehicle.
The windows and moon roof (if equipped) are closed before the alarm is set.
No valuables or other personal items are left in the vehicle.
Deactivating or stopping the alarm
Page 99 of 628
981-3. Theft deterrent system
IS300h_EE(OM53B95E)
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 situations, the doors are locked automatically to prevent intrud-
ers:
The doors are unlocked manually without the mechanical key and the alarm is
triggered.
While the alarm is operating, the doors are unlocked manually without the
mechanical key.
The doors or trunk are unlocked using the
mechanical key.
A person inside the vehicle opens a door,
the trunk or hood, or unlocks the vehicle
using a inside lock button.
The 12-volt battery is recharged or
replaced when the vehicle is locked. (P.
552)
NOTICE
To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper oper-
ation of the system cannot be guaranteed.
Page 101 of 628

1001-3. Theft deterrent system
IS300h_EE(OM53B95E)
Canceling and automatic re-enabling of the intrusion sensor and tilt sensor
The alarm will still be set even when the intrusion sensor and tilt sensor are can-
celed.
After the intrusion sensor and tilt sensor are canceled, pressing the power
switch or unlocking the doors using the entry function or wireless remote con-
trol will re-enable the intrusion sensor and tilt sensor.
The intrusion sensor and tilt sensor will automatically be re-enabled when the
alarm system is deactivated.
Intrusion sensor detection considerations
The sensor may trigger the alarm in the following situations:
Places with extreme vibrations or noises, or situations in which the vehicle is
subject to repeated impacts or vibrations:
• When parked in a parking garage
• When the vehicle is transported on a ferry, trailer, train, etc.
• When ice adhering to the vehicle is removed
• When the vehicle is in an automatic or high-pressure car wash
• When in a hail or lightning storm
A window or the moon roof is open.
In this case, the sensor may detect the fol-
lowing:
• Wind or the movement of objects such
as leaves and insects inside the vehicle
• Ultrasonic waves emitted from devices
such as the intrusion sensors of other
vehicles
• The movement of people outside the
vehicle
Unstable items, such as dangling accesso-
ries or clothes hanging on the coat hooks,
are in the vehicle.
Page 131 of 628
129
3
Operation of
each component
IS300h_EE(OM53B95E)
3-1. Key information
Keys .................................. 130
3-2. Opening, closing and
locking the doors and
trunk
Doors ................................ 136
Trunk................................. 143
Smart entry & start system 149
3-3. Adjusting the seats
Front seats ......................... 164
Rear seats .......................... 166
Driving position memory.. 168
Head restraints .................. 173
3-4. Adjusting the steering
wheel and mirrors
Steering wheel .................. 176
Inside rear view mirror ..... 178
Outside rear view mirrors . 180
3-5. Opening, closing the
windows and moon roof
Power windows................. 184
Moon roof ......................... 187
Page 132 of 628
130
IS300h_EE(OM53B95E)3-1. Key information
The following keys are provided with the vehicle.
Electronic keys
• Operating the smart entry & start
system (P. 149)
• Operating the wireless remote
control function
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped)
Operating the smart entry & start
system (P. 149)
Locks the doors (P. 136)
Closes the windows and moon
roof
* (P. 136)
Unlocks the doors (P. 136)
Opens the windows and moon
roof
* (P. 136)
Opens the trunk (P. 144)
*: These settings must be customized at any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
Keys
The keys
1
2
3
4
Wireless remote control
1
2
3
4
5
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1313-1. Key information
3
Operation of each component
IS300h_EE(OM53B95E)
To take out the mechanical key,
push the release button and take the
key out.
The mechanical key can only be
inserted in one direction, as the key
only has grooves on one side. If the
key cannot be inserted in a lock cyl-
inder, turn it over and re-attempt to
insert it.
After using the mechanical key,
store it in the electronic key. Carry
the mechanical key together with the
electronic key. If the electronic key
battery is depleted or the entry func-
tion does not operate properly, you
will need the mechanical key. (P.
548)
Using the mechanical key