2016 LEXUS IS250 alarm

Topic 1
Entering and Exiting
9
IS_U (L/O_0808)
Theft Deterrent System
nEngine 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.
nAlarm
The system sounds the alarm and flashes lights when forcible entry is detected.
To set the alarm: lock all the doors from outside the vehicle. The security indicator light
comes on to indicate that the alarm is in its preparation state. When the indicator light
begins to flash, the system is armed.
To deactivate or stop the alarm: turn the “ENGINE START STOP” switch to ACCESSORY
or IGNITION ON mode, or unlock the doors or trunk using the electronic key or the wire-
less remote control.
nSteering lock
The steering wheel locks when the “ENGINE
START STOP” switch is OFF.
When the steering lock cannot be released, the
green indicator light on the “ENGINE START
STOP” switch will flash and a message will be
shown on the multi-information display. To release
it, gently turn the wheel left or right while pressing
the “ENGINE START STOP” switch.
The theft deterrent system includes the following features to help protect your vehicle from
theft.

Topic 2
Before Driving
13
IS_U (L/O_0808)
Driving and Seat Position Memory System (If Equipped)
nSetting memory positions
Press the SET button, then within 3 seconds press
one of the memory buttons (1, 2, or 3) until you
hear a beep.
The current position of the seat, as well as the
position of the steering wheel and the outside
rear view mirrors (for the driver's seat only) is
recorded.
nRecalling memory positions
Press one of the memory buttons (1, 2, or 3).
nLinking driving position memory with door unlock operation (driver's seat only)
While holding down the desired memory button,
press and hold the button on the wireless
remote control or door lock switch until you hear a
beep.
To prevent triggering of the alarm, open one of
the doors within 180 seconds after the beep is
heard.
The seats can be returned to a previously set position by simply pressing a button.
The position of the steering wheel and the outside rear view mirrors is adjusted along with the
driver's seat.
Positions can be conveniently recorded for the vehicle's primary drivers and passengers.
Linking driving position memory to the door unlock operation allows the memory position
to be recalled automatically when the driver's door is opened. (The linked function does not
operate if the driver's door is unlocked using the mechanical key or manually from inside
the vehicle.)

62

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
IS_U (L/O_0808)
Electronic Key Alarm
The electronic key alarm uses an alarm and warning messages to indicate that the electronic
key has been used improperly. Take appropriate 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 correction procedure in the table below.
*: Vehicles with 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
compartment
Retrieve the electronic key
from the passenger com-
partment and lock the
doors again.
Closed the trunk while the
electronic key is still inside
and all doors are locked
Retrieve the electronic key
from the trunk and close
the trunk lid.
Exterior alarm sounds
once for 60 seconds
Tried to exit the vehicle
with the electronic key and
lock the doors without first
turning the “ENGINE
START STOP” switch OFF
Turn the “ENGINE START
STOP” switch OFF and
lock the doors again.
Exterior alarm sounds
once for 10 seconds
Tried to lock the vehicle
using the entry function
while a door is open
Close 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 ACCES-
SORY mode while the
driver's door is open
(Opened the driver's door
when the “ENGINE
START STOP” switch is in
ACCESSORY mode.)
Close the driver's door.
Tu r n e d t h e “ E N G I N E
START STOP” switch OFF
while the driver's door is
still open
Close the driver's door.