engine LEXUS RX350 2016 Service Manual

146 3-2. Opening, closing and locking the doors
RX350_U_OM48E90U ●
Locks and unlocks the doors (  P. 1 2 4 )●
Locks and unlocks the back door (  P. 1 3 0 )●
Starts and stops the engine (  P. 220)■
Antenna location
■
Effective range (areas within whic h the electronic key is detected)Smart access system with push-button start The following operations can be performed simply by carrying the electronic
key on your person, for example in your pocket. The driver should always
carry the electronic key.
Antennas outside the cabin
Antennas inside the cabin
Antenna outside the luggage compartment
When locking or unlocking the doors
The system can be operated when the elec-
tronic 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 switch modes
The system can be operated when the elec-
tronic key is inside the vehicle. 1
2
3

1473-2. Opening, closing and locking the doors
3
Operation of each component
RX350_U_OM48E90U ■
Alarms and warning messages
A combination of exterior and interior alarms as well as warning messages shown on the
multi-information display are used to prevent theft of the vehicle and accidents resulting
from erroneous operation. Take appropriate measures in response to any warning mes-
sage on the multi-information display. (  P. 6 4 1 )
The following table describes circumstance s and correction procedures when only
alarms are sounded.
■
If a warning message is displayed indicating that there is a malf unction in the smart
access system with push-button start
 P. 6 4 1 ■
Battery-saving function
The battery-saving function will be activated in order to prevent the electronic key bat-
tery and the battery from being discharged wh ile the vehicle is not in operation for a long
time. ●
In the following situations, the smart access system with push-button start may take
some time to unlock the doors.
• The electronic key has been left in an area of approximately 6 ft. (2 m) of the outside
of the vehicle for 10 minutes or longer.
• The smart access system with push-butto n start has not been used for 5 days or
longer. ●
If the smart access system with push-butto n start has not been used for 14 days or
longer, the doors cannot be unlocked at any doors except the driver’s door. In this case,
take hold of the driver’s door handle, or us e the wireless remote control or the mechan-
ical key, to unlock the doors. Alarm Situation Correction procedure
Exterior alarm
sounds once for 5
seconds An attempt was made to lock
the vehicle while a door was
open. Close all of the doors and
lock the doors again.
Interior alarm pings
repeatedly The engine switch was turned to
ACCESSORY mode while the
driver’s door was open (The
driver’s door was opened when
the engine switch was in
ACCESSORY mode). Turn the engine switch off
and close the driver’s door.

148 3-2. Opening, closing and locking the doors
RX350_U_OM48E90U ■
Electronic Key battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping the elec-
tronic key from receiving radio waves.
■
Conditions affe cting operation
The smart access system with push-button start, wireless remote control and engine
immobilizer system use weak radio waves. In the following situatio ns, the communication
between the electronic key and the vehicle ma y be affected, preventing the smart access
system with push-button start, wireless remote control and engine immobilizer system
from operating properly. (Ways of coping:  P. 6 6 1 )●
When the electronic key battery is depleted ●
Near a TV tower, electric powe r plant, gas station, radio stat ion, large display, airport or
other facility that generates strong radio waves or electrical noise ●
When the electronic key is in contact wi th, 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, cordless phone or other wireless communication
devices
• Another vehicle’s electronic key, another el ectronic key of your vehicle, or a wireless
key that emits radio waves
• Personal computers or person al 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 devicesPress twice while pressing and holding .
Confirm that the electronic key indicator flashes
4 times.
While the battery-saving mode is set, the smart
access system with push-button start cannot be
used. To cancel the function, press any of the
electronic key buttons.

1493-2. Opening, closing and locking the doors
3
Operation of each component
RX350_U_OM48E90U ■
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 pa nel, luggage compartment, floor, or in the
door 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 outs ide the cabin and the door will become lockable from the
outside, possibly trapping the el ectronic key inside the vehicle.●
As long as the electronic key is within the effective range, the doors may be locked or
unlocked 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 approximately 60 seconds if the doors are not
opened and closed.) ●
If the wireless remote control is used to lo ck the doors when the electronic key is near
the vehicle, there is a possibility that the door 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 touch the lock sensor again. ●
When the lock operation is performed using the lock sensor, recognition signals will be
shown up to two consecutive times. After this, no recognition signals will be given.
*●
If the door handle becomes wet while the el ectronic 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 6 ft. (2 m) 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 access system
with push-button start. (  P. 1 4 8 )●
If the electronic key is insi de 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 from
being 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 detection area, it may take slightly longer to
unlock the doors after the door handle is gripped.

150 3-2. Opening, closing and locking the doors
RX350_U_OM48E90U ●
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.
* : This setting can be customized at your Lexus dealer. ■
When the vehicle is not driven for extended periods ●
To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2 m) of the
vehicle. ●
The smart access system with push-butto n start can be deactivated in advance.
(  P. 6 9 9 )■
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 access system with push-button start does not operate properly ●
Locking and unlocking the doors: Use the mechanical key. (  P. 6 6 1 )●
Starting the engine:  P. 6 6 3■
Customization
Some functions can be customized. (  P. 6 9 9 )■
If the smart access system with push-butto n start has been deactivated in a customized
setting ●
Locking and unlocking the doors:
Use the wireless remote control or mechanical key. (  P. 124, 130, 661)●
Starting the engine and changing engine switch modes:  P. 663●
Stopping the engine:  P. 220

152
RX350_U_OM48E90U 3-3. Adjusting the seats
Seat position adjustment switch
Seat cushion (front) angle adjust-
ment switch
Vertical height adjustment switch
Seatback angle adjustment switch
Lumbar support firmness adjust-
ment switch
Lumbar support height adjustment
switch (if equipped)
Seat cushion length adjustment
switch (if equipped) ■
Power easy access system
The driver’s seat (on some models) and stee ring wheel move in accordance with engine
switch mode and the driver’s seat belt condition. (  P. 1 6 2 )Front seats Adjustment procedure 1
2
3
4
5
6
7
WA R N I N G ■
When adjusting the seat position ●
Take care when adjusting the seat position to ensure that other passengers are not
injured by the moving seat. ●
Do not put your hands under the seat or near the moving parts to avoid injury.
Fingers or hands may become jammed in the se at mechanism.●
Make sure to leave enough space around the feet so they do not get stuck.■
Seat adjustment
To reduce the risk of sliding under the lap belt during a co llision, do not recline the seat
more than necessary.
If the seat is too rec lined, the lap belt may slide past the hips and apply restraint forces
directly to the abdomen, or your neck may contact the shoulder belt, increasing the risk
of death or serious injury in the event of an accident.
Adjustments should not be ma de while driving as the seat may unexpectedly move and
cause the driver to lose control of the vehicle.

158 3-3. Adjusting the seats
RX350_U_OM48E90U ■
The rear seatbacks can be adjusted when (power seat)
■
The rear seatbacks can be folded down when (power seat)
When all of the following conditions are met, a rear seat operation switch can be used to
fold down the rear seatback:
●
When using the rear seat operation switch (rear seat): The rear door nearest to the seat
to be operated is open. ●
When using the rear seat operation switch (luggage compartment): The back door is
open. ●
The other seat operation switch for the seat to be operated is not being pressed.
When the engine switch is in IGNITION ON mode, one of the following conditions must
also be met in order for the power seat to be operated:
• The parking brake is engaged.
• The brake pedal is depressed.
• The shift lever is in P.When the rear seatback is in a position within
the range A shown in the illustration, the rear
seat operation switch (rear seat) can be used to
adjust the rear seatback.
●
When the engine switch is turned off or in
ACCESSORY mode ●
When using the rear seat operation switch
(rear seat): The rear seatback is in a position
within the range A shown in the illustration. ●
When using the rear seat operation switch
(luggage compartment): The rear seatback is
in a position within the range B shown in the
illustration. Most
upright
position
Most upright
position

1593-3. Adjusting the seats
3
Operation of each component
RX350_U_OM48E90U ■
The rear seatbacks can be raised when (power seat)
When all of the following conditions are met, a rear seat operation switch can be used to
return the rear seatback:
●
When using the rear seat operation switch (luggage compartment): The back door is
open. ●
The other seat operation switch for the seat to be operated is not being pressed.
When the engine switch is in IGNITION ON mode, one of the following conditions must
also be met in order for the power seat to be operated:
• The parking brake is engaged.
• The brake pedal is depressed.
• The shift lever is in P. ■
Fully reclining the rear seatback (power seat)
■
Power seat operations (if equipped)
If a seat cover or seat cushion has been pu t on the seat, it may not operate properly.
When folding down the rear seatback, make sure that there is nothing on the seat that
would interfere with the operation. ■
Rear seatback jam protection function (power seat)
When folding down or raising the rear seatback, if an object is detected between the rear
seatback and seat cushion, th e rear seatback will stop an d then move in the opposite
direction slightly.
A buzzer will sound continuously when the re ar seatback stops an d intermittently when
moving in the opposite direction. ●
When the engine switch is turned off or in
ACCESSORY mode ●
When using the rear seat operation switch
(rear seat): The rear seatback is in a position
within the range A shown in the illustration. ●
When using the rear seat operation switch
(rear seat): The rear door nearest to the seat to
be operated is open.
Operate the rear seat operation switch (rear
seat) to recline the rear seatback and stop it
partway. To set the rear seatback to the rear-
most position, press the button again. Most
upright
position

162 3-3. Adjusting the seats
RX350_U_OM48E90U The seat and steering wheel are automati cally adjusted to allow the driver to
enter and exit the vehicle easily.
When all of the following have been
performed, the seat and steering wheel
are automatically adjusted to a position
that allows driver to enter and exit the
vehicle easily.
• The shift lever has been shifted to P.
• The engine switch has been turned
off.
• The driver’s seat belt has been unfastened.
When any of the following has been performed, the seat and steering wheel
automatically return to their original positions.
• The engine switch has been turn ed to ACCESSORY mode or IGNITION
ON mode.
• The driver’s seat belt has been fastened. ■
Operation of the power easy access system
When exiting the vehicle, the power easy acc ess system may not operate if the seat is
already close to the rearmost position, etc. ■
Customization
Some functions can be customized. (  P. 6 9 9 )Driving position memory 
 : If equippedThis feature automatically adjusts the dr iver’s seat (on some models), steering
wheel and outside rear view mirrors to make entering and exiting the vehicle
easier or to suit your preferences.
Power easy access system (driver’s side only)

1633-3. Adjusting the seats
3
Operation of each component
RX350_U_OM48E90U Your preferred driving position (the posi tion of the driver’s seat, steering wheel
and outside rear view mirrors) can be recorded and recalled by pressing a but-
ton.
Three different driving positions can be recorded into memory. ■
Recording procedure
Check that the shift lever is in P.
Turn the engine switch to IGNITION ON mode.
Adjust the driver’s seat, steering wheel, and outside rear view mirrors to the
desired positions.
While pressing the “SET” button,
or within 3 seconds after the
“SET” button is pressed, press
button “1”, “2” or “3” until the
buzzer sounds. If the selected button has already
been preset, the previously recorded
position will be overwritten.Driving position memory 1
2
3
4