Page 170 of 776

1703-2. Opening, closing and locking the doors
RX350/RX200t_EE_OM48F32E
■Electronic Key battery-Saving Function
When battery-saving mode is set, battery depl etion is minimized by stopping the elec- tronic key from receiving radio waves.
■Conditions affecting operation
The smart entry & start system, wireless re mote control and engine immobilizer system use weak radio waves. In the following si tuations, the communication between the elec- tronic key and the vehicle may be affected, preventing the smart entry & start system,
wireless remote control and engine immob ilizer system from operating properly. (Ways of coping: P. 710)
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, gas station, radio station, large display, airport or other facility that gene rates strong radio waves or electrical noise
●When the electronic key is in contact with, or is covered by the following metallic
objects
• Cards to which aluminum foil is attached • Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags •Coins• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless keys (that emit radio waves) are being used nearby
●When carrying the electronic key together with the following devices that emit radio waves
• Portable radio, cellular phone, cordle ss phone or other wireless communication
devices • Another vehicle’s electronic key, another electronic key of your vehicle, or a wirelesskey that emits radio waves
• Personal computers or personal digital assistants (PDAs) • Digital audio players• Portable game systems
●If window tint with a metallic content or me tallic objects are attached to the rear win- dow
●When the electronic key is placed near a battery charger or electronic devices
Press twice while pressing and holding . Confirm that the electronic key indicator flashes
4 times.
While the battery-saving mode is set, the smart entry & start system cannot be used. To cancel
the function, press any of the electronic key but- tons.
Page 171 of 776

1713-2. Opening, closing and locking the doors
3
Operation of each component
RX350/RX200t_EE_OM48F32E
■Note for the entry function
●Even when the electronic key is within the effective range (detection areas), the system may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near the ground, or in a high place when the doors are locked or unlocked.• The electronic key is near the ground or in a high place, or too close to the rear
bumper center when the back door is opened. • The electronic key is on the instrument panel, luggage compartment, floor, or in thedoor pockets or glove box when the engine is started or engine switch modes are
changed.
●Do not leave the electronic key on top of th e instrument panel or near the door pockets
when exiting the vehicle. Depending on the radio wave reception conditions, it may be detected by the antenna outside the cabin and the door will become lockable from theoutside, possibly trapping the electronic key inside the vehicle.
●As long as the electronic key is within the effective range, the doors may be locked orunlocked by anyone.
●Even if the electronic key is not inside the vehicle, it may be possible to start the engine
if the electronic key is near the window.
●The doors may unlock if a large amount of wa ter splashes on the door handle, such as in the rain or in a car wash when the electronic key is within the effective range. (The door
will automatically be locked after approx imately 30 seconds if the doors are not opened and closed.)
●If the wireless remote control is used to lock the doors when the electronic key is near
the vehicle, there is a possibility that the d oor may not be unlocked by the entry func- tion. (Use the wireless remote control to unlock the doors.)
●Touching the door lock sensor while wearin g gloves may delay or prevent lock opera-
tion. Remove the gloves and to uch the lock sensor again.
●If the door handle becomes wet while the electronic key is within the effective range,
the door may lock and unlock repeatedly. In that case, follow the following correction
procedures to wash the vehicle:
• Place the electronic key in a location 2 m (6 ft.) or more away from the vehicle. (Take
care to ensure that the key is not stolen.)
• Set the electronic key to battery-saving mode to disable the smart entry & start sys-
tem. ( P. 170)
●If the electronic key is inside the vehicle and a door handle becomes wet during a car wash, a message may be shown on the mult i-information display and a buzzer will
sound outside the vehicle. To turn off the alarm, lock all the doors.
●The lock sensor may not work properly if it comes into contact with ice, snow, mud, etc. Clean the lock sensor and attempt to operate it again.
●A sudden approach to the effective range or door handle may prevent the doors frombeing unlocked. In this case, return the door handle to the original position and check that the doors unlock before pulling the door handle again.
●If there is another electronic key in the de tection area, it may take slightly longer to unlock the doors after the door handle is gripped.
●Fingernails may scrape against the door duri ng operation of the door handle. Be care-
ful not to injure fingernails or damage the surface of the door.
Page 172 of 776

1723-2. Opening, closing and locking the doors
RX350/RX200t_EE_OM48F32E
■When the vehicle is not driven for extended periods
●To prevent theft of the vehicle, do not leave the electronic key within 2 m (6 ft.) of the vehicle.
●The smart entry & start system can be deactivated in advance. ( P. 740)
■To operate the system properly
Make sure to carry the electronic key when operating the system. Do not get the elec-
tronic key too close to the vehicle when op erating the system from the outside of the vehicle.
Depending on the position and holding condit ion 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 operate.)
■If the smart entry & start system does not operate properly
●Locking and unlocking the doors: Use the mechanical key. ( P. 710)
●Starting the engine: P. 712
■Customization
Some functions can be customized. ( P. 740)
■If the smart entry & start system has been deactivated in a customized setting
●Locking and unlocking the doors:
Use the wireless remote control or mechanical key. ( P. 140, 151, 710)
●Starting the engine and changing engine switch modes: P. 712
●Stopping the engine: P. 246
Page 173 of 776
1733-2. Opening, closing and locking the doors
3
Operation of each component
RX350/RX200t_EE_OM48F32E
■Certification for the smart entry & start system
Page 184 of 776

1843-2. Opening, closing and locking the doors
RX350/RX200t_EE_OM48F32E
WARNING
■Caution regarding interference with electronic devices
●People with implantable cardiac pacemakers, cardiac resynchronization therapy- pacemakers or implantable cardioverter de fibrillators should maintain a reasonable
distance between themselves and the sm art entry & start system antennas. (P. 168) The radio waves may affect the operation of such devices. If necessary, the entryfunction can be disabled. Ask any authoriz ed Lexus dealer or repairer, or another
duly qualified and equipped professional for details, such as the frequency of radio waves and timing of the emitted radio waves. Then, consult your doctor to see if you should disable the entry function.
●Users of any electrical medical device other than implantable cardiac pacemakers,cardiac resynchronization therapy-pacemakers or implantable cardioverterdefibrillators should consult the manufacturer of the device for information about its
operation under the influence of radio waves. Radio waves could have unexpected effects on the operation of such medicaldevices.
Ask any authorized Lexus dealer or repairer, or another duly qualified and equipped professional for details on disabling the entry function.
Page 188 of 776

1883-3. Adjusting the seats
RX350/RX200t_EE_OM48F32E
■Folding down the rear seatbacks (power seat)
Press and hold the switch to fold down the rear seatback.
A buzzer will sound and then the operation will start. The buzzer will sound again when the operation is completed.
To stop the operation partway, press either side of the rear seat operation switch of
the operating seat. Any rear seat operatio n switch for the operating seat, regard- less of location, can be used to stop the operation. (A buzzer may sound depend-ing on the position that the rear seatback is stopped.)
■Folding down the rear center seatback
Pull the lock release lever behind the
rear seatback and fold the rear
seatback down.
To return the rear center seatback to
its original position, lift it up until it locks.
Rear seat operation switch
(rear seat)
Rear seat operation switch
(luggage compartment)
When using the rear seat operation switch (rear seat): If the rear seatback is
reclined, bring the rear seatback to the most upright position and press and
hold the switch again.
Page 190 of 776
1903-3. Adjusting the seats
RX350/RX200t_EE_OM48F32E
■Returning the rear seatbacks (power seat) Press and hold the switch to return the rear seatback.
A buzzer will sound and then the operation will start. The buzzer will sound again
when the operation is completed.
To stop the operation partway, press either side of the rear seat operation switch of
the operating seat. Any rear seat operation switches for the operating seat,
regardless of location, can be used to stop the operation. (A buzzer may sound
depending on the position that the rear seatback is stopped.)
Check that the plate of the seat
belt is on the front side of the seat.
1
Rear seat operation switch
(rear seat)Rear seat operation switch
(luggage compartment)
2
Page 198 of 776

1983-3. Adjusting the seats
RX350/RX200t_EE_OM48F32E
Each electronic key (including a card key) can be registered to recall your pre-
ferred driving position.
■Registering procedure
Record your driving position to button “1”, “2” or “3” before performing the
following:
Carry only the key you want to register, and then close the driver’s door.
If 2 or more keys are in the vehicle, the driving position cannot be recorded
properly.
Check that the shift lever is in P.
Turn the engine switch to IGNITION ON mode.
Recall the driving position that you want to record.
While pressing the recalled but-
ton, press and hold the door lock
switch (either lock or unlock) until
the buzzer sounds.
If the button could not be registered, the buzzer sounds continuously for approximately 3 seconds.
■Recall procedure
Carry the electronic key that has been registered to the driving position,
and then unlock and open the driver’s door using the smart entry & start
system or wireless remote control.
The driving position will move to the recorded position (not including the steering
wheel). However, the seat will move to a posi tion slightly behind the recorded posi- tion in order to make entering the vehicle easier. If the driving position is in a position that has already been recorded, the seat and
outside rear view mirrors will not move.
Turn the engine switch to ACCESSORY mode or IGNITION ON mode,
or fasten a seat belt.
The seat and steering wheel will move to the recorded position.
Memory recall function (driver’s side only)
1
2
3
4
1
2