key battery LEXUS RX200T 2017 User Guide

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.

2123-5. Opening, closing the windows and moon roof
RX350/RX200t_EE_OM48F32E
■Door lock linked window operation
●The power windows can be opened and closed using the mechanical key.* (P. 711)
●The power windows can be opened and closed using the wireless remote control.*
(P. 140)
*: These settings must be customized at any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
■Alarm (if equipped)
The alarm may be triggered if the alarm is set and a power window is closed using the
door lock linked power window operation function. ( P. 84)
■When the battery is disconnected
The window lock switch is disabled. If nece ssary, press the window lock switch after
reconnecting the battery.
■Power windows open warning buzzer
The buzzer sounds and a message is shown on the multi-information display in the instru-
ment cluster when the engine switch is turned off and the driver’s door is opened with the power windows open.
■Customization
Some functions can be customized. ( P. 740)

2484-2. Driving procedures
RX350/RX200t_EE_OM48F32E
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or IGNITION ON mode (the engine is not running) for more than an hour with the shift lever in P, the engineswitch will automatically turn off. However, this function cannot entirely prevent battery
discharge. Do not leave the vehicle with the engine switch in ACCESSORY or IGNI- TION ON mode for long periods of time when the engine is not running.
■Electronic key battery depletion
 P. 137
■Conditions affecting operation
 P. 170
■Note for the entry function
 P. 171
■If the engine does not start
●The engine immobilizer system may not have been deactivated. (P. 77) Contact any authorized Lexus dealer or repairer, or another duly qualified andequipped professional.
●Check that the shift lever is securely set in P. The engine may not start if the shift lever is displaced out of P. “To Start Vehicle, Put Shift Lever into P” will be displayed on themulti-information display.
■Steering lock
After turning the engine switch off and opening and closing the doors, the steering wheel will be locked due to the steering lock functi on. Operating the engine switch again auto-
matically cancels the steering lock.
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from over heating, operation of the motor may be sus-
pended if the engine is turned on and off repeat edly in a short period of time. In this case, refrain from operating the engine switch. After about 10 seconds, the steering lockmotor will resume functioning.
■When “Smart Entry & Start System Malfunction See Owner’s Manual” is displayed onthe multi-information display
The system may be malfunctioning. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qua lified and equipped professional immediately.
“Steering Wheel Lock Press Engine Switch while Turning Wheel” will be displayed on themulti-information display.
Check that the shift lever is in P. Press the engine switch while turning the steering wheelleft and right.

2494-2. Driving procedures
4
Driving
RX350/RX200t_EE_OM48F32E
■If the electronic key battery is depleted
 P. 638
■Operation of the engine switch
●If the switch is not pressed shortly and firmly, the engine switch mode may not change or the engine may not start.
●If attempting to restart the engine immediately after turning the engine switch off, the
engine may not start in some cases. After turning the engine switch off, please wait a few seconds before restarting the engine.
■If the smart entry & start system has been deactivated by a customized setting
 P. 710
WARNING
■When starting the engine
Always start the engine while sitting in the driver’s seat. Do not depress the accelerator pedal while starting the engine under any circumstances.
Doing so may cause an accident resu lting in death or serious injury.
■Caution while driving
If engine failure occurs while the vehicle is moving, do not lock or open the doors until
the vehicle reaches a safe and complete stop. Activation of the steering lock in this cir- cumstance may lead to an accident, resulting in death or serious injury.
■Stopping the engine in an emergency
If you want to stop the engine in an emer gency while driving the vehicle, press and hold the engine switch for more than 2 seconds, or press it briefly 3 times or more in succes- sion. ( P. 657)
However, do not touch the engine switch while driving except in an emergency. Turning the engine off while driving will not cause loss of steering or braking control, but the power assist to these systems will be lost. Th is will make it more difficult to steer and
brake, so you should pull over and stop the vehicle as soon as it is safe to do so.

5556-3. Using the interior lights
6
Interior features
RX350/RX200t_EE_OM48F32E
●Illuminated entry system: The lights automatically turn on/off according to engine switch mode, the presence of the electronic key, whether the doors are locked/unlocked, and whether the doors are opened/closed.
●If the interior lights remain on when the engine switch is turned off, the lights will go off automatically after 20 minutes.
●In the following cases, the interior lights and front personal lights may not respond as
normal.
• When water, dirt, etc., have adhered to the lens surface • When operated with a wet hand
• When wearing gloves, etc.
●Some functions can be customized. ( P. 740)
NOTICE
●Never remove the lens for the front interior light and front personal lights. Otherwise,
the lights will be damaged. If the lens ne ed to remove, contact any authorized Lexus dealer or repairer, or another duly qualified and equipped professional.
●To prevent battery discharge, do not leave the lights on longer than necessary when
the engine is off.

5736-5. Using the other interior features
6
Interior features
RX350/RX200t_EE_OM48F32E
NOTICE
■Conditions in which the wireless charger may not operate correctly
In the following situations, the wireless charger may not operate correctly:
●When a portable device is fully charged
●When there is a foreign object between the charging area and portable device
●When a portable device becomes hot while charging
●When a portable device is placed on the wireless area with its charging surface fac-
ing up
●When a portable device is not centered on the charging area
●When the vehicle is near a TV tower, electric power plant, gas station, radio station,
large display, airport or othe r facility that generates strong radio waves or electrical noise
●When the portable device is in contact wi th, or is covered by any of the following
metallic objects
• Cards to which aluminum foil is attached • Cigarette boxes that ha ve aluminum foil inside
• Metallic wallets or bags •Coins• Metal hand warmers
• Media such as CDs and DVDs
●When wireless keys (that emit radio waves) other than those of your vehicle are being
used nearby.
If in situations other than above the wireless charger does not operate properly or the operation indicator light is blinking, the wireless charger may be malfunctioning. Con-
tact any authorized Lexus dealer or repair er, or another duly qualified and equipped professional.
■To prevent failure or damage to data
●Do not bring magnetic cards, such as a credit card, or magnetic recording media,close to the wireless charger while chargi ng. Otherwise, data may be erased due to the influence of magnetism.
Additionally, do not bring precision instruments such as wrist watches, close to the wireless charger, as such objects may malfunction.
●Do not leave portable devices in the cabin. The temperature inside the cabin may
become high when parked in the su n, and cause damage to the device.
■To prevent battery discharge
Do not use the wireless charger for a long period of time with the engine is stopped.

583
7Maintenance and care
RX350/RX200t_EE_OM48F32E
7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ................584
Cleaning and protecting
the vehicle interior..................589
7-2. Maintenance
Maintenance
requirements ............................ 592
7-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions................................595
Hood ............................................... 597
Positioning a floor jack ............598
Engine compartment ............... 599
Tires ...................................................612
Tire inflation pressure .............. 629
Wheels ............................................ 631
Air conditioning filter ............... 633
Windshield wiper inserts ........ 636
Electronic key battery..............638
Checking and
replacing fuses .........................640
Light bulbs..................................... 643

5857-1. Maintenance and care
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
■Note for a smart entry & start system
●If the door handle becomes wet while the electronic key is within the effective range, the door may lock and unlock repeatedly. Place the key in a position 2 m (6 ft.) or more
separate from the vehicle while the vehicle is being washed. (Take care to ensure that the key is not stolen.)
●If the electronic key is inside the vehicle and a door handle becomes wet during a car
wash, a buzzer will sound outside the vehicle. To turn off the alarm, lock all the doors.
●Set the electronic key to battery-saving mode to disable the smart entry & start system. ( P. 169)
■Aluminum wheels
●Remove any dirt immediately by using a neutral detergent. Do not use hard brushes or abrasive cleaners. Do not use strong or harsh chemical cleaners.
Use the same mild detergent as used on the paint.
●Do not use detergent on the wheels when th ey are hot, for example after driving for long distance in the hot weather.
●Wash detergent from the wheels immediately after use.
■Bumpers
Do not scrub with abrasive cleaners.
■Front side windows water-repellent coating
●The following precautions can extend the effectiveness of the water-repellent coating.
• Remove any dirt, etc., from the front side windows regularly.
• Do not allow dirt and dust to accumulate on the windows for a long period. Clean the windows with a soft, damp cloth as soon as possible.• Do not use wax or glass cleaners that co ntain abrasives when cleaning the windows.
• Do not use any metallic objects to remove condensation build up.
●When the water-repellent performance has become insufficient, the coating can be repaired. Contact any authorized Lexus dealer or repairer, or another duly qualified and equipped professional.

6097-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
■Before recharging
When recharging, the battery produces hydr ogen gas which is flammable and explosive. Therefore, observe the following precautions before recharging:
●If recharging with the battery installed on the vehicle, be sure to disconnect the ground
cable.
●Make sure the power switch on the charger is off when connecting and disconnecting the charger cables to the battery.
■After recharging/reconnecting the battery
●The engine may not start. Follow the pr ocedure below to initialize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine.
●Unlocking the doors using the smart entry & start system may not be possible immedi-
ately after reconnecting the battery. If this happens, use the wireless remote control or the mechanical key to lock/unlock the doors.
●Start the engine with the engine switch in ACCESSORY mode. The engine may not
start with the engine switch turned off. However, the engine will operate normally from the second attempt.
●The engine switch mode is recorded by the vehicle. If the battery is disconnected and
reconnected, the vehicle will return the engi ne switch mode to the status it was in before the battery was disconnected. Make sure to turn off the engine switch beforedisconnecting the battery. Take extra care when connecting the battery if the engine
switch mode prior to the battery being disconnected is unknown.
If the system will not start even after multip le attempts at all the methods above, contact any authorized Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.
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6387-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
●Flathead screwdriver
●Lithium battery CR2032
Take out the mechanical key.
Remove the cover.
To prevent damage to the key, cover the tip of the flathead screwdriver with atape.
Remove the battery cover.
Electronic key battery
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
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