2006 Lexus IS250 ECO mode

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.)

Topic 3
When Driving
25
Dynamic Radar Cruise Control (If Equipped)
■Cruise control display
Cruise control settings are shown on the multi-
information display.
Vehicle ahead indicator
Vehicle-to-vehicle distance
Preset speed
■Vehicle-to-vehicle distance control mode
Press the ON-OFF button.
Accelerate or decelerate to the desired
speed, and then push the lever down.
Following distance can be adjusted using the
vehicle-to-vehicle dist ance control switch.
■Conventional (constant speed) cruise control mode
Press the ON-OFF button.
Push the lever forward and hold for at least
one second.
Accelerate or decelerate to the desired
speed, and then push the lever down.
■Canceling
To temporarily cancel the dynamic radar cruise
control, pull the lever.
To turn the system off, press the ON-OFF button.
■Adjusting the speed setting
To increase speed : push the lever up.
To decrease speed : push the lever down.
Release the lever when the desired speed is
reached.
Dynamic radar cruise control supplements conventional cruise control with a vehicle-to-
vehicle distance control mode.
1
2
3
The vehicle-to-vehicle distance control mode maintains the pr eset cruising speed as long
as no vehicle is detected ahead.

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.