2006 Lexus IS250 alarm

Topic 1
Entering and Exiting
7
Keys
■Electronic key
● Locks and unlocks the doors
● Opens the trunk
● Starts and stops the engine
■Mechanical key
● Locks and unlocks the doors
● Opens the trunk
● Locks and unlocks the glove box
The mechanical key is stored inside the electronic
key. To extract the key, release the latch and pull.
■ Wireless remote control
Locks the doors
Unlocks the doors
Opens the trunk
Sounds the alarm
Use the alarm to attract attention to the vehi-
cle in order to help deter break-ins.
(To stop the alarm, push any button on the
wireless remote control.)1
2
3
4
The wireless remote control can also be used to open the windows and moon roof.
To do so, simply press and hold button.

Topic 1
Entering and Exiting
9
Theft Deterrent System
Engine immobilizer system
The engine immobilizer system prevents the
engine from being started in the event that an
attempt is made to start the vehicle using an
unregistered key.
The security indicator light flashes to indicate that
the system is set.
Alarm
The alarm detects forcible entry and attracts
attention to the vehicle by sounding the horn and
flashing the exterior lights in the event that an
attempt is made to forcibly open the doors, trunk
or hood that have been locked.
When all the doors are locked, the security indi-
cator light comes on to indicate that the alarm is
in its preparation state. The indicator light begins
to flash after approximately 30 seconds to indi-
cate that the system is armed.
Steering lock
The steering wheel locks when the engine switch
is in OFF mode.
The theft deterrent system includes the followi ng features to help protect your vehicle from
theft.
To stop the alarm, start the engine or unlock the doors or trunk using the electronic key or
the wireless remote control. (The alarm will stop after several seconds.)

What to do if ...
49
If the engine doesn't start
Make sure that the correct operating procedures have been followed.Make sure that the brake pedal (for automatic
transmissions) or clutch pedal (for manual trans-
missions) is firmly depressed when attempting to
start the engine. ( P.1 7 )
Automatic transmission
Manual transmission
u tomatic transmissin
Make sure that the steering wheel lock is released.
To release the steering wheel lock, gently turn the
wheel left or right while pressing the engine
switch. (P.9 )
Electronic key alarm
Brake/clutch pedal
Steering wheel lock
If the engine still does not st art, see the Owner's Manual fo r more information or contact
your Lexus dealer.

50
Entering and Exiting
Before Driving
When Driving
Rain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing Yo u r L e x u s
Electronic Key Alarm
The electronic key alarm uses an alarm and warn ing messages to indicate that the electronic
key has been used improperly. Take appropri ate measure in response to any warning mes-
sages that are displayed. In some cases, an alarm may sound without an accompanying
warning message. If so, follow the co rrection procedure in the table below.
*Vehicles with an automatic transmission only
AlarmSituationCorrection procedure
Exterior alarm sounds
once for 2 seconds
Tried to lock the doors
using the entry function
while the electronic key is
still inside the passenger
compartmentRetrieve the electronic key
from the passenger com-
partment and lock the
doors again.
Tried to exit the vehicle
with the electronic key and
lock the doors without first
turning the engine switch
OFF
Tu r n t h e e n g i n e s w i t c h
OFF and lock the doors
again.
Closed the trunk while the
electronic key is still inside
and all doors are lockedRetrieve the electronic key
from the trunk and close
the trunk lid.
Exterior alarm sounds
once for 10 secondsTried to lock the vehicle
using the entry function
while a door is openClose all of the doors and
lock the doors again.
Interior alarm sounds
continuously*Tried to open the door and
exit the vehicle without
shifting the shift lever to P
Shift the shift lever to P.
Interior alarm pings
continuously
Switched to ACC mode
while the driver's door is
open (Opened the driver's
door when the engine
switch is in ACC mode.)
Tu r n t h e e n g i n e s w i t c h
OFF and close the driver's
door.
Turned the engine switch
OFF while the driver's
door is still open
Close the driver's door.