ECU LEXUS RX200T 2017 Service Manual

1463-2. Opening, closing and locking the doors
RX350/RX200t_EE_OM48F32E
◆Smart entry & start system
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. 140
◆Door lock switch
 P. 142
Raise the back door while pressing up
the back door opener switch.
Back door
: If equipped
The back door can be locked/unlocked and opened by the following proce-
dures.
Locking and unlocking the back door from the outside
1
2
Locking and unlocking the back door from the inside
Opening the back door from the outside

1493-2. Opening, closing and locking the doors
3
Operation of each component
RX350/RX200t_EE_OM48F32E
WARNING
■Operating the 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 ic e, from the back door before opening it. Failure to do so may cause the back door to suddenly shut again after it is opened.
●When opening or closing th e back door, thoroughly check to make sure the sur- rounding area is safe.
●If anyone is in the vicinity, make sure they are safe and let them know that the back
door is about to open or close.
●Use caution when opening or closing the b ack door in windy weather as it may move abruptly in strong wind.
●Do not pull on the back door damper stay ( P. 150) to close the back door, and do not hang on the back door damper stay. Doing so may cause hands to be caught or the back door damper stay to break,
causing an accident.
●If a bicycle carrier or similar heavy object is attached to the back door, it may sud- denly 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 back door, using a genuine Lexus part is recommended.
●The back door may suddenly shut if it is notopened fully. It is more difficult to open or
close the back door on an incline than on a level surface, so beware of the back doorunexpectedly opening or closing by itself.
Make sure that the back door is fully open and secure before using the luggage compart-ment.
●When closing the back door, take extra care
to prevent your fingers, etc., from being caught.
●When closing the back door, make sure to
press it lightly on its outer surface. If the back door handle is used to fully close the backdoor, it may result in hands or arms being
caught.

1513-2. Opening, closing and locking the doors
3
Operation of each component
RX350/RX200t_EE_OM48F32E
◆Smart entry & start system
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. 140
◆Door lock switch
 P. 142
Press and hold the switch for approxi-
mately 1 second.
The power back door can be operated
when it is unlocked.
Pressing the switch while the power
back door is open ing/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.
Power back door
: If equipped
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 door using the wireless remote con-
trol

1563-2. Opening, closing and locking the doors
RX350/RX200t_EE_OM48F32E
■Power back door operating conditions
If the following conditions are met with the power back door operation enabled ( P. 115), the power back door can be opened and closed automatically.
●The power back door is unlocked.
●When the engine switch is in IGNITION ON mode, the vehicle speed must be lower than 3 km/h (2 mph) and one of the following conditions must be met in addition to the above condition:
• The parking brake is engaged. • The brake pedal is depressed.• The shift lever is in P.
Touchless sensor (vehicles with a touchless power back door)
The power back door will open automatically when the touchless sensor operation is
enabled ( P. 115) and the following conditions are met:
●The power back door is fully closed.
●The electronic key is within the operational range (P. 168)
■Security feature
If the power back door is not opened within approximately 30 seconds 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

1623-2. Opening, closing and locking the doors
RX350/RX200t_EE_OM48F32E
WARNING
■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 do or, 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 power back door in windy weather as it may
move abruptly in strong wind.
●Do not pull on the back door spindle ( P. 165) 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 luggage 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.

1633-2. Opening, closing and locking the doors
3
Operation of each component
RX350/RX200t_EE_OM48F32E
WARNING
■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. 115) 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 th is situation, as the power back door may open or close suddenly.
●If the operating conditions of the power back door (P. 156) 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 thepower 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 isturned 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, the back door closer will auto- matically close it to the fully closed position. Ittakes several seconds before the back door
closer begins to operate. Be careful not to get fingers caught or anything else in the powerback door, as this may cause bone fractures
or other serious injuries.

1933-3. Adjusting the seats
3
Operation of each component
RX350/RX200t_EE_OM48F32E
WARNING
■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 rear seatback or in the 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 itdown. 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 be lt during a collision, 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 injury in the event of an accident. Adjustments should not be made while driving as the seat may unexpectedly move andcause 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.

2314-1. Before driving
4
Driving
RX350/RX200t_EE_OM48F32E
WARNING
Observe the following precautions. Failure to do so may result in death or serious injury.
■If you hear a squealing or scraping noise (brake pad wear indicators)
Have the brake pads checked and replaced by any authorized Lexus dealer or repairer, or another duly qualified and equi pped professional as soon as possible. Rotor damage may result if the pads are not replaced when needed.
Front brakes only: Moderate levels of brake pad and disc wear allow enhanced front braking power. As a result, the discs may wear more quickly than conventional brakediscs. Therefore, when replacing the brake pads, Lexus recommends that you also
have the thickness of the discs measured.
It is dangerous to drive the vehicle when th e wear limits of the brake pads and/or those of the brake discs are exceeded.
■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, alwa ys 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.

2334-1. Before driving
4
Driving
RX350/RX200t_EE_OM48F32E
WARNING
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 park ed in a poorly ventilated area, exhaust gases
may collect and enter the vehicle, leading 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 notsecurely hold the vehicle.
●If the power brake assist function does not operate, do not follow other vehiclesclosely and avoid hills or shar p turns that require braking. In this case, braking is still possible, bu t the brake pedal should be depressed more
firmly than usual. Also, the braking distance 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 braking 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.

2354-1. Before driving
4
Driving
RX350/RX200t_EE_OM48F32E
Cargo and luggage
Take notice of the following information about storage precautions, cargo
capacity and load.
WARNING
■Things that must not be carried in the luggage compartment
The following things may cause a fire if loaded in the luggage compartment:
●Receptacles containing gasoline
●Aerosol cans
■Storage precautions
Observe the following precautions. Failure to do so may prevent the pedals from being depressed properly, may block the driver’s vision, or may result in items hitting the driver or passengers, possibly causing
an accident.
●Stow cargo and luggage in the luggage compartment whenever possible.
●Do not stack cargo and luggage in the luggage compartment higher than the
seatbacks.
●When you fold down the rear seats, long items should not be placed directly behind the front seats.
●Never allow anyone to ride in the luggage compartment. It is not designed for pas- sengers. They should ride in their seats with their seat belts properly fastened.
●Do not place cargo or luggage in or on the following locations.
• At the feet of the driver • On the front passenger or rear seats (when stacking items)•On the luggage cover
• On the instrument panel • On the dashboard
●Secure all items in the occupant compartment.
■Load and distribution
●Do not overload your vehicle.
●Do not apply loads unevenly.
Improper loading may cause deterioration of steering or braking control which may cause death or serious injury.