ECU LEXUS RX350 2016 Service Manual

124
RX350_U_OM48E90U 3-2. Opening, closing and locking the doors
◆ Smart access system with push-button start
Carry the electronic key to enable this function.
Grip the driver’s door handle to
unlock the door. Grip any passen-
ger door handle to unlock all the
doors.
* Make sure to touch the sensor on the
back of the handle.
The doors cannot be unlocked for
3 seconds after the doors are locked.
* : The door unlock settings can be
changed. (  P. 1 2 8 ,  703)
Touch the lock sensor (indentation on the surface of the door handle) to
lock all the doors. Check that the door is securely locked.
◆ Wireless remote control
Locks all the doors Check that the door is securely
locked.
Unlocks all the doors Pressing the button unlocks the
driver’s door. Pressing the button
again within 3 seconds unlocks the
other doors.
Press and hold to open the win-
dows
* 2
and the moon roof
* 1, 2
or
panoramic moon roof
* 1, 2
* 1
:If equipped
* 2
: This setting must be customized at your Lexus dealer.Side doors The vehicle can be locked and unlock ed using the entry function, wireless
remote control or door lock switches.
Locking and unlocking the doors from the outside 1
2
1
2

1253-2. Opening, closing and locking the doors
3
Operation of each component
RX350_U_OM48E90U ■
Operation signals
Doors:
A buzzer sounds and the emergency flashers flash to indicate that the doors have been
locked/unlocked. (Locked: Once; Unlocked: Twice)
Windows and moon roof or panoramic moon roof:
A buzzer sounds. ■
Security feature
If a door is not opened within approximately 60 seconds after the vehicle is unlocked, the
security feature automatically locks the vehicle again. ■
When the door cannot be locked by the lock sensor on the surface of the door handle
■
Door lock buzzer
If an attempt to lock the doors is made when a door is not fully closed, a buzzer sounds
continuously for 5 seconds. Fully close the door to stop the buzzer, and lock the vehicle
once more. ■
Setting the alarm
Locking the doors will set the alarm system. (  P. 76 )■
If the smart access system with push-butto n start or the wireless remote control does
not operate properly ●
Use the mechanical key to lock and unlock the doors. (  P. 6 6 1 )●
Replace the key battery with a new one if it is depleted. (  P. 6 0 3 )When the door cannot be locked even if the
lock sensor on the surfac e of the door handle is
touched by a finger, touch the lock sensor with
the palm.
When gloves are being worn, remove the
gloves.

130 3-2. Opening, closing and locking the doors
RX350_U_OM48E90U ◆ Smart access system with push-button start
Carry the electronic key to enable
this function.
Locks all the doors Check that the door is securely
locked.
Unlocks all the doors The doors cannot be unlocked for 3
seconds after the doors are locked.
◆ Wireless remote control
 P. 1 2 4
◆ Door lock switch
 P. 1 2 6
Press and hold the switch for approxi-
mately 1 second. The power back door can be operated
whether it is locked
* or unlocked.
Pressing the switch while the power
back door is opening/closing will stop
the operation.
Pressing and holding the switch again
for approximately 1 second will operate
the power back door in the opposite
direction.
* : Opening of the power back door when it is locked can be disabled by a customized
setting. (  P. 7 0 4 )Power back door The power back door can be locked/unlocked and opened/closed by the fol-
lowing procedures.
Locking and unlocking the power back door from the outside 1
2
Locking and unlocking the power back door from the inside
Opening/closing the power back do or using the wireless remote con-
trol

1353-2. Opening, closing and locking the doors
3
Operation of each component
RX350_U_OM48E90U ■
Power back door operating conditions
If the following conditions are met with the power back door operation enabled (  P. 100),
the power back door can be op ened and closed automatically.●
When an electronic key is being carried an d the back door opener switch is pressed
*●
When the wireless remote control is used
*●
When the engine switch is in IGNITION ON mode, the vehicle speed must be lower
than 2 mph (3 km/h) and one of the following conditions must be met in addition to the
above conditions:
• The parking brake is engaged.
• The brake pedal is depressed.
• The shift lever is in P.
* : When the operation of the power back door when it is locked has been disabled by a
customized setting, operate the power back door after it has been unlocked.
(  P. 7 0 4 ) 
Touchless sensor (vehicles with a touchless power back door)
The power back door will open automatically when the touchless sensor operation is
enabled (  P. 100) and the following conditions are met:●
The power back door is fully closed. ●
The electronic key is within the operational range (  P. 1 4 6 )
■
Security feature
If the power back door is not opened within approximately 60 seco nds after the vehicle
is unlocked, the security feature will automatically lock the doors again. ●
A hand is held over the upper part of the rear
emblem with fingers closed. (The upper part of
the rear emblem can also be touched.)
The power back door may also be operated
by holding either of the following over the
upper part of the rear emblem. Make sure to
hold it close enough to the rear emblem.
•A gloved hand
•An elbow

1413-2. Opening, closing and locking the doors
3
Operation of each component
RX350_U_OM48E90U WA R N I N G ■
Operating the power back door
Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resulting in death or serious
injury. ●
Remove any heavy loads, such as snow and ice, from the power back door before
opening it. Failure to do so may cause the power back door to suddenly shut again
after it is opened. ●
When opening or closing the power back d oor, thoroughly check to make sure the
surrounding area is safe. ●
If anyone is in the vicinity, make sure they are safe and let them know that the power
back door is about to open or close. ●
Use caution when opening or closing the powe r back door in windy weather as it may
move abruptly in strong wind.
●
Do not pull on the back door spindle (  P. 144) to close the power back door, and
do not hang on the back door spindle.
Doing so may cause hands to be caught or the back door spindle to break, causing
an accident. ●
If a bicycle carrier or similar heavy object is attached to the power back door, it may
suddenly shut again after being opened, causing someone’s hands, arms, head or
neck to be caught and injured. When installing an accessory part to the power back
door, using a genuine Lexus part is recommended. ●
The power back door may suddenly shut if it is
not opened fully, while on a steep incline.
Make sure that the power back door is secure
before using the lu ggage compartment.●
When closing the power back door, take
extra care to prevent your fingers, etc., from
being caught. ●
When closing the power back door, make
sure to press it lightly on its outer surface. If
the back door handle is used to fully close the
power back door, it may result in hands or
arms being caught.

142 3-2. Opening, closing and locking the doors
RX350_U_OM48E90U WA R N I N G ■
Back door closer
●
Use caution when using the back door closer as it still operates when the power back
door system is disabled. ■
Power back door
Observe the following precautions when operating the power back door.
Failure to do so may cause death or serious injury. ●
Check the safety of the surrounding area to make sure there are no obstacles or any-
thing that could cause any of your belongings to get caught. ●
If anyone is in the vicinity, make sure they are safe and let them know that the power
back door is about to open or close. ●
If the power back door system is disabled (  P. 100) while the power back door is
operating, the power back door will stop operating. The power back door must then
be operated manually. Take extra care in this situation, as the power back door may
open or close suddenly. ●
If the operating conditions of the power back door (  P. 135) are no longer met, a
buzzer may sound and the power back door may stop opening or closing. The power
back door must then be operated manually. Take extra care on an incline in this situa-
tion, as the power back door may move suddenly. ●
On an incline, the power back door may suddenly shut after it opens. Make sure the
power back door is fully open and secure. ●
In the following situations, the power back door may detect an abnormality and auto-
matic operation may be stopped. In this case, the power back door must then be
operated manually. Take extra care in this situation, as the stopped power back door
may suddenly open or close, causing an accident.
• When the power back door contacts an obstacle
• When the battery voltage suddenly drops, such as when the engine switch is
turned to IGNITION ON mode or the engine is started during automatic opera-
tion ●
In the event that the power back door is left
slightly open, th e back door closer will auto-
matically close it to the fully closed position. It
takes several seconds before the back door
closer begins to operate. Be careful not to get
fingers caught or anything else in the power
back door, as this may cause bone fractures
or other serious injuries.

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.

160 3-3. Adjusting the seats
RX350_U_OM48E90U WA R N I N G ■
When folding down the rear seatbacks and when the rear seatbacks are folded
Observe the following precautions.
Failure to do so may result in death or serious injury.●
Do not fold down the rear seatbacks while driving. ●
Stop the vehicle on level ground, apply the parking brake and shift the shift lever to P.●
Do not allow anyone to sit on a folded re ar seatback or in th e luggage compartment
while driving. ●
Do not allow children to enter the luggage compartment. ■
When operating the rear seatback
Observe the following precautions.
Failure to do so may result in death or serious injury.●
Keep other passengers from being hit by the rear seatback. ●
Do not put your hands between the seats or near the moving parts, or let any part of
your body get caught. ●
Power seat: Do not let children operate the rear seatback. Other passengers may get
caught in the seat. ●
Power seat: Check that there are no passengers sitting in a seat before folding it
down. Do not let passengers sit in the seat while it is being folded down.■
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 reclined excessively, the lap be lt may slide past the hips and apply restraint
forces directly to the abdomen, or your ne ck may contact the shoulder belt, increasing
the risk of death or serious inju ry 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. ■
After returning the rear seatback to the upright position
Observe the following precautions.
Failure to do so may result in death or serious injury.●
Make sure that the rear seatback is secure ly locked in position by lightly pushing it
back and forth. ●
Check that the seat belts are not twisted or caught between or behind in the rear
seatback.

1974-1. Before driving
4
Driving
RX350_U_OM48E90U WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury. ■
When the vehicle is stopped ●
Do not race the engine.
If the shift lever is in any position other than P or N, the vehicle may accelerate sud-
denly and unexpectedly, causing an accident. ●
In order to prevent accidents due to the vehicle rolling away, always keep depressing
the brake pedal while the engine is running, and apply the parking brake as neces-
sary. ●
If the vehicle is stopped on an incline, in order to prevent accidents caused by the
vehicle rolling forward or backward, always depress the brake pedal and securely
apply the parking brake as needed. ●
Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause the exhaust
system to overheat, which could result in a fire if combustible material is nearby. ■
When the vehicle is parked ●
Do not leave glasses, cigarette lighters, sp ray cans, or soft drink cans in the vehicle
when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a fire.
• The temperature inside the vehicle may cause the plastic lenses and plastic mate-
rial of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray over the interior of the
vehicle, and may also cause a short circuit in the vehicle’s electrical components. ●
Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a place such as
the glove box or on the floor, it may be lit accidentally when luggage is loaded or the
seat is adjusted, causing a fire. ●
Do not attach adhesive discs to the windsh ield or windows. Do not place containers
such as air fresheners on the instrument panel or dashboard. Adhesive discs or con-
tainers may act as lenses, causing a fire in the vehicle. ●
Do not leave a door or window open if th e curved glass is coated with a metallized
film such as a silver-colored one. Reflected sunlight may cause the glass to act as a
lens, causing a fire. ●
Always shift the shift lever to P, apply the parking brake, stop the engine and lock the
vehicle.
Do not leave the vehicle unattend ed while the engine is running.●
Do not touch the exhaust pipes while the engine is running or immediately after turn-
ing the engine off.
Doing so may cause burns.

198 4-1. Before driving
RX350_U_OM48E90U WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury. ■
When taking a nap in the vehicle
Always turn the engine off. Otherwise, if you accidentally move the shift lever or
depress the accelerator pedal, this could cause an accident or fire due to engine over-
heating. Additionally, if the vehicle is parked in a poorly ventilated area, exhaust gases
may collect and enter the vehicle, leadin g to death or a serious health hazard.■
When braking ●
When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause one side of
the vehicle to brake differently than the other side. Also, the parking brake may not
securely hold the vehicle. ●
If the power brake assist function does not operate, do not follow other vehicles
closely and avoid hills or shar p turns that require braking.
In this case, braking is st ill possible, but the brake pedal should be depressed more
firmly than usual. Also, the braking distan ce will increase. Have your brakes fixed
immediately. ●
Do not pump the brake pedal if the engine stalls.
Each push on the brake pedal uses up the reserve for the power-assisted brakes. ●
The brake system consists of 2 individual hy draulic systems; if one of the systems fails,
the other will still operate. In this case, the brake pedal should be depressed more
firmly than usual and the bra king distance will increase.
Have your brakes fixed immediately. ■
If the vehicle becomes stuck (AWD models)
Do not spin the wheels excessively when any of the tires is up in the air, or the vehicle is
stuck in sand, mud, etc. This may damage th e driveline components or propel the vehi-
cle forward or backward, causing an accident.