2010 Lexus IS250 alarm

41
1-2. Opening, closing and locking the doors and trunk
1
Before driving
IS350/250_U
■Pa n i c m o d e
■Electronic key battery depletion
→P. 3 4
■Security feature
→P. 3 6
■When the electronic key battery is fully depleted
→P. 4 3 4
■Conditions affecting operation
→P. 3 2
■Customization that can be configured at Lexus dealer
Settings (e.g. trunk unlocking function) can be changed.
(Customizable features →P. 5 4 9 ) When is pushed for longer than about
one second, an alarm will sound for about 60
seconds and the vehicle lights will flash to
deter any person from trying to break into or
damage your vehicle.
To stop the alarm, push any button on the
wireless remote control.

54
1-3. Adjustable components (seats, mirrors, steering wheel)
IS350/250_U
Linking driving position memory with door unlock operation
Record your driving position to button “1”, “2” or “3” before performing
the following. Using the wireless remote control Turn the “ENGINE START STOP” switch OFF and close the
driver's door.
While the desired button (“1”, “2”
or “3”) press on the wireless
remote control until the signal
beeps.
The driving position is recalled
when the driver's door is unlocked
using the entry function or wireless
remote control and the driver’s
door is opened.
Open one of the doors.
If a door is not opened within 60 seconds after is pressed, the
doors will be locked again and the alarm will automatically be set.
In case that the alarm is triggered, immediately stop the alarm.
(→ P. 88)
Push button “1”, “2” or “3” to
recall the memorized position. STEP2
STEP1
STEP2
STEP3

88
1-6. Theft deterrent system
IS350/250_U
Alarm
The system sounds the alarm and flashes the lights when forcible entry is
detected.
■Triggering of the alarm
The alarm is triggered in the following situations.
● A locked door or trunk is unlocked or opened in any way other
than using the entry function, wireless remote door lock function
or mechanical key with the alarm being set.
● The hood is opened with the alarm being set.
■ Setting the alarm system
Close the doors, trunk and
hood, and lock all doors.
The system will be set automati-
cally after 30 seconds.
The indicator light changes from
being on to flashing when the
system is set.
■Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm.
● Unlock the doors or trunk using the entry function, wireless
remote door lock functi on or mechanical key.
● Turn the “ENGINE START STOP” switch to the ACCESSORY or
IGNITION ON mode or start th e engine. (The alarm will be
deactivated or stopped after a few seconds.)

89
1-6. Theft deterrent system
1
Before driving
IS350/250_U
■System maintenance
The vehicle has a maintenance-free type of 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 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.)
●A person inside the vehicle opens a door, the trunk or hood.
●The battery is recharged or replaced when the vehicle is locked.
■When the battery is disconnected
Be sure to deactivate the alarm system.
If the battery is disconnected before deactivating the alarm system, the alarm may
be triggered when the battery is reconnected.
■Alarm-operated door lock
●When the alarm is operating, the doors are locked automatically to prevent
intruders.
●Do not leave the key inside the vehicle when the alarm is operating, and make
sure the key is not inside the vehicle when recharging or replacing the battery.
NOTICE
■To ensure the system correctly
Do not modify and remove the system. If modified or removed, the proper opera-
tion of the system cannot be guaranteed.

188
2-4. Using other driving systems
IS350/250_U
CAUTION
■Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise control in any of the following situations.
Doing so may result in inappropriate control of speed and could cause an accident
resulting in death or serious injury.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those covered with rain, ice or snow
●On steep downhills, or where there are sudden changes between sharp up and
down gradients
●At entrances to expressways
●When weather conditions are bad enough that they may prevent the sensors
from functioning correctly (fog, snow, sandstorm, etc.)
●When a buzzer can be heard often
●When your vehicle is towing a trailer
■When the radar sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary when any of the following types of vehicles are in
front of you.
As the sensor may not be able to correctly detect these types of vehicles, the prox-
imity alarm (→P. 480) will not be activated, and an accident may result.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving
●Vehicles with small rear ends (trailers with no load on board etc.)
●Motorcycles traveling in the same lane

506
5-2. Steps to take in an emergency
IS350/250_UTr u n k
Turn the mechanical key clock-
wise to open.
Changing “ENGINE START STOP” switch modes and starting the engine
Automatic transmissionShift the shift lever to P and apply the brakes.
Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
the “ENGINE START STOP”
switch if any of the doors is opened
and closed while the key is touched
to the switch.
STEP1
STEP2

5
When trouble arises
507
5-2. Steps to take in an emergency
IS350/250_UTo change “ENGINE START STOP” switch modes: Within 10
seconds of the buzzer sounding, release the brake pedal and
press the “ENGINE START STOP” switch. Modes can be
changed each time the switch is pressed.
(→
P. 1 3 4 )
To start the engine: Press the “ENGINE START STOP” switch
within 10 seconds after the buzzer sounds, keeping the brake
pedal depressed.
Manual transmission
Shift the shift lever to N and depress the clutch pedal.
Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
the “ENGINE START STOP”
switch if any of the doors is opened
and closed while the key is touched
to the switch.
STEP3
STEP1
STEP2

564
IS350/250_U
Alphabetical index
Alphabetical index
A/C ............................................................220
ABS.............................................................. 196
AFS .............................................................. 166
Adaptive front lighting system ......... 166
Air conditioning filter ........................... 431
Air conditioning systemAir conditioning filter ......................... 431
Automatic air conditioning system .................................................. 220
Airbags
Airbag operating conditions........... 96
Airbag precautions for your child.......................................................... 99
Airbag warning light .........................472
Curtain shield airbag operating conditions.............................................. 96
Curtain shield airbag precautions .......................................... 99
Front passenger occupant classification system....................... 104
General airbag precautions ........... 99
Locations of airbags............................ 93
Modification and disposal of airbags .................................................. 103
Proper driving posture ............... 91, 99
Side airbag operating conditions.............................................. 96
Side airbag precautions .................... 99
SRS airbags ............................................. 93
Alarm ........................................................... 88
Antenna ....................................................238
Anti-lock brake system ....................... 196
Armrest .....................................................354
Ashtrays ....................................................345
Audio input .............................................. 275 Audio system
Antenna.................................................. 238
AUX adapter .......................................275
Bluetooth
® audio ............................. 280
CD player/changer ........................... 241
iPod
®...................................................... 256
MP3/WMA disc............................... 248
Optimal use .......................................... 273
Portable music player ......................275
Radio ........................................................233
Steering wheel audio switch......... 277
USB memory .......................................264
Automatic air conditioning system .................................................... 220
Automatic headlight leveling system ...................................................... 167
Automatic light control system.........165
Automatic transmission Automatic transmission ................... 139
If the shift lever cannot be shifted from P................................... 503
S mode ..................................................... 142
AUX adapter ......................................... 275
Back-up lights Wattage ................................................. 533
Battery Checking................................................. 410
If the vehicle has a discharged battery .................................................509
Preparing and checking before winter...................................... 210
Bottle holders .........................................338
Bluetooth
® audio .................................280
Bluetooth® phone ............................... 298
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