alarm Lexus IS250 2015 Audio menu screen operation /

TABLE OF CONTENTS2
IS350/250_U (OM53C50U)
For your information ................................... 8
Reading this manual................................... 12
How to search ..............................................13
Pictorial index ............................................... 14
1-1. For safe useBefore driving................................. 26
For safety drive............................... 28
Seat belts .......................................... 30
SRS airbags ..................................... 36
Front passenger occupant classification system...................47
Safety information for children ................................... 53
Child restraint systems ............... 54
Installing child restraints............. 58
Exhaust gas precautions ............ 68
1-2. Theft deterrent system Engine immobilizer system....... 69
Alarm ................................................... 71
Theft prevention labels ................73
2. Instrument cluster Warning lights and indicators........................................ 76
Gauges and meters .......................81
Multi-information display .......... 86
Fuel consumption information ................................... 92 3-1. Key information
Keys .................................................... 98
3-2. Opening, closing and locking the doors and trunk
Doors ............................................... 103
Trunk................................................. 109
Smart access system with push-button start ....................... 114
3-3. Adjusting the seats Front seats.......................................120
Rear seats......................................... 121
Driving position memory..........123
Head restraints .............................128
3-4. Adjusting the steering wheel and mirrors
Steering wheel ............................... 131
Inside rear view mirror ..............133
Outside rear view mirrors........135
3-5. Opening, closing the windows and moon roof
Power windows............................ 138
Moon roof ........................................ 141
1For safety and security
2Instrument cluster
3Operation of each
component

25
For safety and security1
IS350/250_U (OM53C50U)
1-1. For safe useBefore driving................................. 26
For safety drive............................... 28
Seat belts .......................................... 30
SRS airbags ..................................... 36
Front passenger occupant classification system...................47
Safety information for children .......................................... 53
Child restraint systems ............... 54
Installing child restraints .............58
Exhaust gas precautions ............ 68
1-2. Theft deterrent system Engine immobilizer system ....... 69
Alarm ................................................... 71
Theft prevention labels ............... 73

711-2. Theft deterrent system
1
For safety and security
IS350/250_U (OM53C50U)
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, wireless remote control or mechanical key. (The doors will lock
again automatically.)
●The hood is opened.
Close the doors, trunk and hood, and
lock all the doors. The system will be set
automatically after 30 seconds.
The indicator light changes from being
on to flashing when the system is set.
Do one of the following to de activate or stop the alarms:
●Unlock the doors or open the trunk.
●Turn the engine switch to ACCESSORY or IGNITION ON mode, or start
the engine. (The alarm will be deactivat ed or stopped after a few seconds.)
Alarm
The alarm
Setting the alarm system
Deactivating or stopping the alarm

721-2. Theft deterrent system
IS350/250_U (OM53C50U)
■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 follow-
ing:
●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.)
■Alarm-operated door lock
In the following situations, the doors are locked automatically to prevent intruders:
●The doors are unlocked manually without the mechanical key and the alarm is trig-
gered.
●While the alarm is operating, the doors are unlocked manually without 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 battery is recharged or replaced when the
vehicle is locked. ( P. 5 0 4 )
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.

98
IS350/250_U (OM53C50U)3-1. Key information
The following keys are provided with the vehicle.
Electronic keys
• Operating the smart access systemwith push-button start ( P. 114)
• Operating the wireless remote con- trol function
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped)
Operating the smart access system with
push-button start ( P. 1 1 4 )
Locks the doors ( P. 1 0 3 )
Unlocks the doors ( P. 1 0 3 )
Opens the windows and moon roof
*
( P. 1 0 3 )
Opens the trunk ( P. 1 0 9 )
Sounds the alarm ( P. 99)
*: This setting must be customized at your
Lexus dealer.
Keys
The keys
1
2
3
4
Wireless remote control
1
2
3
4
5

993-1. Key information
3
Operation of each component
IS350/250_U (OM53C50U)
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 can-
not be inserted in a lock cylinder, turn it
over and re-attempt to insert it.
After using the mechanical key, store it
in the electronic key. Carry the mechan-
ical key together with the electronic key.
If the electronic key battery is depleted
or the entry function does not operate
properly, you will need the mechanical
key. (P. 499)
■Panic mode
Using the mechanical key
When is pressed for longer than about
one second, an alarm will sound intermittently
and the vehicle lights will flash to deter any per-
son from trying to break into or damage your
vehicle.
To stop the alarm, press any button on the elec-
tronic key.

1013-1. Key information
3
Operation of each component
IS350/250_U (OM53C50U)
■Electronic key battery depletion
●The standard battery life is 1 to 2 years. (The card key battery life is about a year and a
half.)
●If the battery becomes low, an alarm will soun d in the cabin when the engine is stopped.
(  P. 4 8 3 )
●As the electronic key always receives ra dio waves, the battery will become depleted
even if the electronic key is not used. The following symptoms indicate that the elec-
tronic key battery may be depleted. Re place the battery when necessary. (P. 4 3 9 )
• The smart access system with push-button start or the wireless remote control does
not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
●To avoid serious deterioration, do not leave the electronic key within 3 ft. (1 m) of the
following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
■Replacing the battery
 P. 4 3 9
■Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask your Lexus
dealer for details.
■If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.

1043-2. Opening, closing and locking the doors and trunk
IS350/250_U (OM53C50U)
■Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors have been
locked/unlocked. (Locked: once; Unlocked: twice)
A buzzer sounds to indicate that the windows and moon roof are operating.
■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 front position, 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.
■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 1 )
■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. 499)
Replace the key battery with a new one if it is depleted. ( P. 4 3 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.

1073-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350/250_U (OM53C50U)
■Switching the door unlock function
It is possible to set which doors the entry function unlocks using the wireless remote con-
trol.
Turn the engine switch off.
When the indicator light on the key su rface is not on, press and hold , or
for approximately 5 seconds while pressing and holding .
The setting changes each time an operatio n is performed, as shown below. (When
changing the setting continuously, release the buttons, wait for at least 5 seconds, and
repeat step .)
To prevent unintended triggering of the alarm, unlock the doors using the wireless
remote control and open and close a door once after the settings have been changed. (If
a door is not opened within 60 seconds af ter is pressed, the doors will be locked
again and the alarm will automatically be set.)
In a case that the alarm is triggered, immediately stop the alarm. ( P. 7 1 )
■Impact detection door lock release system
In the event that the vehicle is subject to a strong impact, all the doors are unlocked.
Depending on the force of the impact or the type of accident, however, the system may
not operate.
■Using the mechanical key
The doors can also be locked and unlocked with the mechanical key. ( P. 499)
■Conditions affecting the operation of the sm art access system with push-button start
or wireless remote control
 P. 116
■Customization
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features: P. 5 3 7 )
1
2
2
Multi-information
displayUnlocking functionBeep
Holding the driver’s door handle
unlocks only the driver’s door.
Exterior: Beeps 3 times
Interior: Pings onceHolding the front passenger’s
door handle unlocks all the
doors.
Holding either front door handle
unlocks all the doors.Exterior: Beeps twice
Interior: Pings once

1113-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350/250_U (OM53C50U)
■Tr u n k l i g h t
The trunk light turns on when the trunk is opened.
■Function to prevent the trunk being locked with the electronic key inside
●When all doors are locked, closing the trunk lid with the electronic key left inside the
trunk will sound an alarm.
In this case, the trunk lid can be opened pressing the trunk release button on the trunk
lid.
●If the spare electronic key is put in the trunk with all the doors locked, the key confine-
ment prevention function is activated so the trunk can be opened. In order to prevent
theft, take all electronic keys with you when leaving the vehicle.
●If the electronic key is put in the trunk with all the doors locked, the key may not be
detected depending on the location of the key and the surrounding radio wave condi-
tions. In this case, the key confinement prevention function cannot be activated, causing
the doors to lock when the trunk is closed. Make sure to check where the key is before
closing the trunk.
●The key confinement prevention function canno t be activated if any one of the doors is
unlocked. In this case, open the trunk using the trunk opener.
■Internal trunk release lever
■Using the mechanical key
The trunk can be also opened using the mechanical key. ( P. 4 9 9 )
■If the smart access system with push-butto n start or the wireless remote control does
not operate properly
Use the mechanical key to unlock the trunk. ( P. 499)
Replace the key battery with a new one if it is depleted. ( P. 4 3 9 )
■When leaving a key to the vehi cle with a parking attendant
 P. 1 0 0
■Customization
The trunk unlocking operation can be changed. (Customizable features: P. 5 3 7 )
The trunk lid can be open
ed by pulling the glow-
in-the-dark lever located on the inside of the
trunk lid to the side.
The lever will continue to glow for some time
after the trunk lid is closed.