2011 LEXUS RX350 Key detected

9
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 an attempt to steal the vehicle is
detected.
To set the alarm: close the doors and hood, and lock all doors. 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, start the engine, or unlock the doors.
nSteering lock
The steering wheel locks when the “ENGINE
START STOP” switch is turned off and the driver’s
door is opened.
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, press the “ENGINE START STOP” switch
while gently turning the steering wheel left or
right.
The theft deterrent system includes the following features to help protect your vehicle
from theft.

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1-2. Opening, closing and locking the doors
nEffective range (areas within which the electronic key is detected)
When locking or unlocking
the doors
The system can be operated
when the electronic key is
within about 2.3 ft. (0.7 m) of
an outside door handle. (Only
the doors detecting the key
can be operated.)
When starting the engine
or changing “ENGINE
START STOP” switch
modes
The system can be operated
when the electronic key is
inside the vehicle.
nOperation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors have
been locked/unlocked. (Locked: Once; Unlocked: Twice)
nWhen the door cannot be locked by the lock sensor on the upper part of the door
handle
Touch both lock sensors on the upper and
lower part of the door handle simultaneously.

39
1-2. Opening, closing and locking the doors
1

Before driving
nTo operate the system properly
Make sure to carry the electronic key when operating the system. Do not get the
electronic key too close to the vehicle when operating the system from the outside
of the vehicle.
Depending on the position and holding condition of the electronic key, the key may
not be detected correctly and the system may not operate properly. (The alarm may
go off accidentally, or the door lock prevention may not function.)
nIf the smart access system with push-button start does not operate properly
lLocking and unlocking the doors: Use the mechanical key. (→P. 5 8 1 )
lStarting the engine: →P. 5 8 2
nElectronic key battery depletion
lThe standard battery life is 1 to 2 years. (The card key battery life is about a year
and a half.)
lIf the battery becomes low, an alarm will sound in the cabin when the engine
stops. (→P. 5 5 6 )
lAs the electronic key always transmits radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indicate
that the electronic key battery may be depleted. Replace the battery when nec-
essary. (→P. 4 9 6 )

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1-2. Opening, closing and locking the doors
Locking the front doors from the outside without a key
Move the inside lock button to the lock position.
Close the door.
The door cannot be locked if the “ENGINE START STOP” switch is in
ACCESSORY or IGNITION ON mode, or the electronic key is left
inside the vehicle.
The key may not be detected correctly and the door may be locked.
Rear door child-protector lock
The door cannot be opened from
inside the vehicle when the lock is
set.
These locks can be set to prevent
children from opening the rear
doors. Push down on each rear
door switch to lock both rear
doors.
STEP1
STEP2
nImpact detection door lock release system
In the event that the vehicle is subject to a strong impact, all the doors are unlocked.
Depending on the force of the impact or the type of accident, however, the system
may not operate.
nUsing the mechanical key
The doors can also be locked and unlocked with the mechanical key. (→P. 5 8 1 )
nIf a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.
nCustomization
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features →P. 6 2 1 )

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1-4. Opening and closing the windows and moon roof
nThe moon roof can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
nOperating the moon roof after turning the engine off
The moon roof can be operated for approximately 45 seconds even after the
“ENGINE START STOP” switch is turned to ACCESSORY mode or turned off. It
cannot, however, be operated once either front door is opened.
nJam 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.
nSunshade
The sunshade can be opened and closed manually. However, the sunshade will
open automatically when the moon roof is opened.
nDoor lock linked moon roof operation
lThe moon roof can be opened and closed using the mechanical key. (→P. 5 8 1 )
lThe moon roof can be opened using the wireless remote control. (→P. 4 3 )

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1
1-6. Theft deterrent system

Before driving
Alarm
The system sounds the alarm and flashes the lights when forcible entry is
detected.
nTriggering of the alarm
The alarm is triggered in the following situations when the alarm is
set:
lA locked door is unlocked or opened in any way other than using
the entry function, wireless remote control or mechanical key.
lThe hood is opened.
lSome models: The back door window is tapped or broken.
nSetting the alarm system
Close the doors and hood, and
lock all the 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.
nDeactivating or stopping the alarm
Do one of the following to deactivate or stop the alarms:
lUnlock the doors.
lTurn the “ENGINE START STOP” switch to ACCESSORY or
IGNITION ON mode, or start the engine. (The alarm will be
deactivated or stopped after a few seconds.)

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5-2. Steps to take in an emergency
Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem, check
that the warning message and light go off.
Interior
buzzer Exterior
buzzer
Wa r n i n g m e s s a g eDetailsCorrection
procedure

Sounds
once
⎯
(Flashes)
The electronic key
is not detected
when an attempt
is made to start
the engine.
Confirm the loca-
tion of the elec-
tronic key.

Sounds
once Sounds
3 times
(Flashes)
The electronic key
was carried out-
side the vehicle
and a door other
than the driver's
door was opened
and closed while
the “ENGINE
START STOP”
switch was in a
mode other than
off.
Bring the elec-
tronic key back
into the vehicle.
The driver's door
was opened and
closed while the
electronic key was
not in the vehicle,
the shift lever was
in P and the
“ENGINE START
STOP” switch was
not turned off.
Tu r n t h e
“ENGINE START
STOP” switch off
or bring the elec-
tronic key back
into the vehicle.