2012 Lexus IS250 door lock

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1-4. Opening and closing the windows and moon roof
■Door lock linked window operation
The power windows can be opened and closed using the mechanical key.
( P. 505)
■Customization that can be configured at Lexus dealer
Settings (e.g. linked door lock operation) can be changed.
(Customizable features P. 5 5 3 )
CAUTION
■Closing the windows
Observe the following precautions.
Failing to do so may result in death or serious injury.
●Check to make sure that all passengers do not have any part of their body in a
position where it could be caught when a window is being operated.
●Do not allow children to operate the power windows.
Closing a power window on someone can cause serious injury, and in some
instances, even death.
■Jam protection function
●Never try jamming any part of your body to activate the jam protection function
intentionally.
●The jam protection function may not work if something gets caught just before
the window fully closes.

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1-4. Opening and closing the windows and moon roof
■The moon roof can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■Moon roof open warning buzzer
The buzzer sounds and a message is shown on the multi-information display in the
instrument panel when the “ENGINE START STOP” switch is turned OFF and the
driver's door is opened with the moon roof open.
■Door lock linked moon roof operation
The moon roof can be opened and closed using the mechanical key. ( P. 505)
■Operating the moon roof after turning the “ENGINE START STOP” switch OFF
The moon roof can be operated for ap proximately 45 seconds even after the
“ENGINE START STOP” switch is switched to ACCESSORY mode or turned
OFF. It cannot, however, be operated once either front door is opened.
■Jam protection function
If an object is detected between the moon roof and the frame while closing or tilting
down, travel is stopped and the moon roof opens slightly.
■To reduce moon roof wind noise
When the moon roof is opened automatically, it will stop slightly before the fully
open position. Driving with the moon roof in this position can help reduce wind
noise.
■Sunshade
The sunshade can be opened and closed manually. However, the sunshade will
open automatically when the moon roof is opened.

85
1-4. Opening and closing the windows and moon roof
1
Before driving
■If the moon roof closes but then re-opens slightlyStop the vehicle.
Press and hold the “CLOSE” switch until the moon roof completely
closes.
During the operation, the moon roof will move in the manner outlined
below. If the switch is released during the operation, the operation will
have to be performed again from the beginning.
The moon roof will close, open and then pause for approximately 10 sec-
onds. Then it will close, tilt up and pause for approximately 1 second, after
which it will tilt down and open and then close.
If the moon roof does not fully close even after performing the above procedure
correctly, have the vehicle inspected by your Lexus dealer.
■If the moon roof tilts down but then tilts back up Stop the vehicle.
Press and hold the “TILT” switch until the moon roof moves into the tilt up
position and stops.
Release the “TILT” switch once and then press and hold the “TILT” switch
until the moon roof completely closes.
After moving to the tilt up position, the moon roof will move in the follow-
ing manner. If the switch is released during the operation, the operation
will have to be performe d again from the beginning.
The moon roof will pause for approxim ately 10 seconds while in the tilt up
position and then make some fine adjustments. Following this, it will pause
for approximately 1 second, tilt down, open and then close.
If the moon roof does not fully close even after performing the above procedure
correctly, have the vehicle inspected by your Lexus dealer.
■Customization that can be configured at Lexus dealer
Settings (e.g. linked door lock operation) can be changed.
(Customizable features  P. 5 5 3 )
STEP1
STEP2
STEP1
STEP2
STEP3

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1-6. Theft deterrent system
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 when the alarm is
set:
●A locked door or trunk is unlocked or opened in any way other
than using the entry function, wi reless remote door lock function
or mechanical key.
● The hood is opened.
■ 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.
● Turn the “ENGINE START STOP” switch to ACCESSORY or
IGNITION ON mode or start the engine by pressing the
“ENGINE START STOP” switch. (The alarm will be deactivated
or stopped after a few seconds.)

93
1-6. Theft deterrent system
1
Before driving
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Points to remember before locking the doors
To prevent unexpected triggering of the alarm, make sure to check the following
before locking the doors:
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●The alarm system does not guarantee absolute security. To help prevent theft,
make sure to check that no valuables and so forth are left in the vehicle.
■Unexpected triggering of the alarm
In the following situations, perform an operation that will deactivate or stop the
alarm ( P. 9 2 )
■When the battery is disconnected
Be sure to deactivate the alarm system.
If the battery is disconnected before de activating the alarm system, the alarm may
be triggered when the battery is reconnected.
●When someone without a key is left in the
vehicle and the doors are locked.
When a door, the trunk or hood is opened
from inside the vehicle, the alarm may be
triggered.
●When the battery is recharged or
replaced, due to battery discharge and so
forth, after locking the doors.
The alarm may be activated when the hood
is opened and the ba ttery is reconnected
after the mechanical key has been used to
unlock the doors.

94
1-6. Theft deterrent system
■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 operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation
of the system cannot be guaranteed.

131
2-1. Driving procedures
2
When driving
Starting on a steep uphillAutomatic transmission Firmly set the parking brake and shift the shift lever to D.
Gently depress the accelerator pedal.
Release the parking brake.
Manual transmission
With the parking brake firmly set and the clutch pedal fully
depressed, shift the shift lever into 1.
Lightly depress the accelerator pedal at the same time as gradu-
ally releasing the clutch pedal.
Release the parking brake.
■ Parking the vehicle
Automatic transmission
With the shift lever in D, depress the brake pedal.
Set the parking brake. ( P. 155)
Shift the shift lever to P. ( P. 146)
Press the “ENGINE START STOP” switch to stop the engine.
Lock the door, making sure that you have the electronic key on
your person.
Manual transmission While depressing the clutch pedal, depress the brake pedal.
Set the parking brake. ( P. 155)
Shift the shift lever into N. ( P. 1 5 2 )
Press the “ENGINE START STOP” switch to stop the engine.
Lock the door, making sure that you have the electronic key on
your person.
STEP1
STEP2
STEP3
STEP4
STEP5
STEP1
STEP2
STEP3
STEP4
STEP5
STEP1
STEP2
STEP3
STEP1
STEP2
STEP3

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2-3. Operating the lights and windshield wipers
2
When driving
■Automatic light off system
This system is active when the “ENGINE START STOP” switch is in IGNITION
ON mode and the headlight lever is in any position other than
or .
●When the headlights come on: The headlights and tail lights turn off 30 seconds
after a door is opened and closed if the “ENGINE START STOP” switch has
been switched to ACCESSORY mode or turned OFF. (The lights turn off
immediately if on the key is pressed after all doors are locked.)
●When only the tail lights come on: The tail lights turn off automatically if the
“ENGINE START STOP” switch is switched to ACCESSORY mode or turned
OFF and driver’s door is opened.
To turn the lights on again, switch to IGNITION ON mode, or turn the light switch
off once and then back to or
.
■Automatic headlight leveling system (vehicles with discharge headlights)
The level of the headlights is automatically adjusted according to the number of
passengers and the loading condition of the vehicle to ensure that the headlights do
not interfere with other road users.
■Customization that can be configured at Lexus dealer
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features  P. 5 5 3 )
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.