engine LEXUS RX200T 2017 Service Manual

1373-1. Key information
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Operation of each component
RX350/RX200t_EE_OM48F32E
■Electronic key battery depletion
●The standard battery life is 1 to 2 years. (The card key battery life is about a year and a half.)
●If the battery becomes low, an alarm will soun d in the cabin when the engine is stopped. ( P. 638)
●As the electronic key always receives radio waves, the battery will become depleted
even if the electronic key is not used. The following symptoms indicate that the elec- tronic key battery may be depleted. Replace the battery when necessary. ( P. 638)
• The smart entry & start system or the wireless remote control does not operate.
• The detection area becomes smaller. • The LED indicator on the key surface does not turn on.
●To avoid serious deterioration, do not leave the electronic key within 1 m (3 ft.) of thefollowing electrical appliances that produce a magnetic field:
•TVs
• Personal computers • Cellular phones, cordless phones and battery chargers• Recharging cellular phones or cordless phones
• Induction cookers • Table lamps
■Replacing the battery
 P. 638
■Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask any autho-
rized Lexus dealer or repairer, or another du ly qualified and equipped professional for details.
■If a wrong key is used
The key cylinder rotates freely, isolated from the internal mechanism.

1433-2. Opening, closing and locking the doors
3
Operation of each component
RX350/RX200t_EE_OM48F32E
For the front doors
Push down the inside lock button.
Close the door while pulling the door handle.
The door cannot be locked if the engine switch is in ACCESSORY or IGNITION
ON mode, or the electronic key is left insi de the vehicle. However, the key may not be detected correctly and the door may be locked.
For the rear doors
Push down the inside lock button.
Close the door.
The door cannot be locked if the engine switch is in ACCESSORY or IGNITION ON mode, or the electronic key is left insi de the vehicle. However, the key may not be detected correctly and the door may be locked.
The door cannot be opened from inside
the vehicle when the lock is set.
Unlock
Lock
These locks can be set to prevent chil-
dren from opening the rear doors. Push down on each rear door switch to lockboth rear doors.
The following functions can be set or canceled:
For instructions on customizing, refer to P. 741.
Locking the doors from the outside without a key
Rear door child-protector lock
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Automatic door locking and unlocking systems
FunctionOperation
Speed linked door locking functionAll doors are automatically locked whenvehicle speed is approximately 20 km/h(12 mph) or higher.
Shift position linked door locking
function
All doors are automatically locked when
shifting the shift lever out of P.
Shift position linked door unlocking functionAll doors are automatically unlockedwhen shifting the shift lever to P.
Driver’s door linked door unlocking functionAll doors are automatically unlockedwhen driver’s door is opened.

1443-2. Opening, closing and locking the doors
RX350/RX200t_EE_OM48F32E
■Switching the door unlock function
It is possible to set which doors the entry function unlocks using the wireless remote con- trol.
Turn the engine switch off.
Cancel the intrusion sensor and tilt sensor of the alarm system to prevent unintended triggering of the alarm while changing the settings. (if equipped) ( P. 85)
When the indicator light on the key surface is not on, press and hold , for
approximately 5 seconds while pressing and holding .
The setting changes each time an operatio n is performed, as shown below. (When changing the setting continuously, release the buttons, wait for at least 5 seconds, andrepeat step .)
For vehicles with an alarm: To prevent unin tended triggering of the alarm, unlock the doors using the wireless remote control and op en and close a door once after the set-
tings have been changed. (If a door is not opened within 30 seconds after is pressed,
the doors will be locked again and the alarm will automatically be set.) In a case that the alarm is triggered, immediately stop the alarm. ( P. 83)
■Impact 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.
■Using the mechanical key
The doors can also be locked and unlocked with the mechanical key. ( P. 710)
■Open door warning buzzer
If the vehicle speed reaches 5 km/h (3 mph), the master warning light flashes and a buzzer sounds to indicate that door (s) or the hood in not fully closed.
The open door(s) or hood is displa yed on the multi-information display.
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Multi-information
displayUnlocking functionBeep
(Left-hand drive
vehicles)
(Right-hand drive vehicles)
Holding the driver’s door handle
unlocks only the driver’s door.
Exterior: Beeps 3 times Interior: Pings once
Holding any of the passenger
door handles unlocks all the doors.
Holding a door handle unlocksall the doors.Exterior: Beeps twiceInterior: Pings once

1473-2. Opening, closing and locking the doors
3
Operation of each component
RX350/RX200t_EE_OM48F32E
Lower the back door using a back door
handle, and make sure to push the back
door down from the outside to close it.
■Luggage compartment lights
■If the back door opener is inoperative
The back door can be unlocked from the inside.
When closing the back door
The luggage compartment lights turn on when the back door is opened with the respective lug-
gage compartment light switch on.
When the engine switch is turned off, the lights will go off automatically after 20 min-
utes.
Remove the cover.
To protect the cover, place a rag between the
flathead screwdriver and cover as shown in the illustration.
Move the lever.
Use a flathead screwdriver to move the lever.
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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

1573-2. Opening, closing and locking the doors
3
Operation of each component
RX350/RX200t_EE_OM48F32E
■Luggage compartment lights
■If the power back door opener is inoperative
The power back door can be unlocked from the inside.
The luggage compartment lights turn on when
the power back door is opened with the respec-
tive luggage compartment light switch on.
When the engine switch is turned off, the
lights will go off automatically after 20 min-
utes.
Remove the cover.
To protect the cover, place a rag between the
flathead screwdriver and cover as shown in
the illustration.
Move the lever.
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1583-2. Opening, closing and locking the doors
RX350/RX200t_EE_OM48F32E
■Back door closer
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.
●The back door closer can function when the engine switch is in any mode.
●The power back door can be opened using the back door opener switch even if theback door closer is operating.
■Operation of the power back door
●When the power back door begins to operat e, the emergency flashers will flash twice and a buzzer will sound.
●When the power back door is disabled ( P. 115), the power back door will not operate but can be opened and closed manually.
●The power back door turns to manual operat ion when the back door opener switch is
pressed while the power back door is in an automatic opening/closing operation.
●If anything obstructs the power back door while opening, a buzzer will sound and the power back door will stop immediately. If anything obstructs the power back door while
closing, a buzzer will sound and the power back door will automatically move slightly in the opposite direction and then stop.
■Back door reserve lock function
This function reserves the locking of the po wer back door when the power back door is open. If the following operations are perfor med, all of the doors except the power back door will lock and then the power back door will lock when it is completely closed.
Close all of the doors, except the power back door.
Perform an automatic closing operation of the power back door and lock the doors using the wireless remote control ( P. 140) or smart entry & start system (P. 140,
151) while the power back door is closing.
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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.

1683-2. Opening, closing and locking the doors
RX350/RX200t_EE_OM48F32E
●Locks and unlocks the doors (P. 140)
●Locks and unlocks the back door (P. 146, 151)
●Starts and stops the engine (P. 246)
■Antenna location
■Effective range (areas within which the electronic key is detected)
Smart entry & start system
The following operations can be performed simply by carrying the electronic
key (including the card 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 0.7 m (2.3 ft.) 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.
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1693-2. Opening, closing and locking the doors
3
Operation of each component
RX350/RX200t_EE_OM48F32E
■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. 673)
The following table describes circumstances and correction procedures when only
alarms are sounded.
■If a warning message is displayed indicating that there is a malfunction in the smart
entry & start system
 P. 673
■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 while the vehicle is not in operation for a longtime.
●In the following situations, the smart entry & start system may take some time to unlockthe doors.
• The electronic key has been left in an area of approximately 2 m (6 ft.) of the outside
of the vehicle for 10 minutes or longer. • The smart entry & start system has no t been used for 5 days or longer.
●If the smart entry & start system has not been used for 14 days or longer, the doors can- not be unlocked at any doors except the driver’s door. In this case, take hold of thedriver’s door handle, or use the wireless remote control or the mechanical key, to
unlock the doors.
AlarmSituationCorrection 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 andlock the doors again.
Interior alarm pingsrepeatedly
The engine switch was turned toACCESSORY mode while the
driver’s door was open (The driver’s door was opened whenthe engine switch was in
ACCESSORY mode).
Turn the engine switch off and close the driver’s door.