2017 LEXUS RC300H change key battery

1523-2. Opening, closing and locking the doors and trunk
RC300h_EE(OM24740E)
■Trunk light
●The trunk light turns on when the trunk is opened.
●If the trunk light is left on when the power switch is turned off, the light will go off auto- matically after 20 minutes.
■Function to prevent the trunk being locked with the electronic key inside
●When both side doors are locked, closing the trunk lid with the electronic key left insidethe trunk will sound an alarm.
In this case, the trunk lid can be opened by pressing the trunk release button on the trunk lid.
●If the spare electronic key is put in the trunk with both side doors locked, the key con-
finement prevention function is activated so the trunk can be opened. In order to pre- vent theft, take all electronic keys with you when leaving the vehicle.
●If the electronic key is put in the trunk with both side doors locked, the key may not be
detected depending on the location of the key and the surrounding radio wave condi- tions. In this case, the key confinement prevention function cannot be activated, causingthe doors to lock when the trunk is closed. Make sure to check where the key is before
closing the trunk.
●The key confinement prevention function cannot be activated if either door is unlocked. In this case, open the trunk using the trunk opener.
■Using the mechanical key
The trunk can be also opened using the mechanical key. ( P. 579)
■If the smart entry & start system or the wireless remote control does not operate prop-
erly
Use the mechanical key to unlock the trunk. ( P. 579) Replace the key battery with a new one if it is depleted. ( P. 511)
■When leaving a key to the vehicle with a parking attendant
 P. 140
■Customization
The trunk unlocking operation can be changed. (Customizable features: P. 607)

1583-2. Opening, closing and locking the doors and trunk
RC300h_EE(OM24740E)
■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 trunk is opened. • The electronic key is on the instrument pa nel, rear package tray or floor, or in the door pockets or glove box when the hybrid system is started or power 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 doors will become lockable from the outside, 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. However, only the doors detecting the electronic key can be usedto unlock the vehicle.
●Even if the electronic key is not inside the ve hicle, it may be possible to start the hybrid system if the electronic key is near the window.
●The doors may unlock or lock if a large amou nt of water splashes on the door handle,
such as in the rain or in a car wash, when th e electronic key is within the effective range. (The doors will automatically be locked after approximately 30 seconds if the doorsare not opened and closed.)
●If the wireless remote control is used to lock the doors when the electronic key is nearthe 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 or unlock sensor while wearing gloves may prevent lock or unlock operation.
●If the door handle becomes wet while the electronic key is within the effective range,the door may lock and unlock repeatedly. In this 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. 157)
●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 both side 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 handle operation or a handle oper ation immediately after entering the effec- tive range may prevent the doors from bein g unlocked. Touch the door unlock sensor
and check that the doors are unlocked before pulling the door handle again.
●Unlocking the vehicle may take more time if another electronic key is within the effec- tive range.

1983-5. Opening, closing the windows and moon roof
RC300h_EE(OM24740E)
■Door lock linked window operation
●The power windows can be opened and closed using the mechanical key.* ( P. 579)
●The power windows can be opened and closed using the wireless remote control.*(P. 144)
*: These settings must be customized at any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
■When the 12-volt battery is disconnected
The window lock switch is disabled. If nece ssary, press the window lock switch after reconnecting the 12-volt 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 power switch is turned off and the driver’s door is opened with the power windows open.
■Customization
Settings (e.g. linked door lock operation) can be changed. (Customizable features: P. 607)

2184-2. Driving procedures
RC300h_EE(OM24740E)
■When “Check Entry & Start System” is displayed on the 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.
■If the “READY” indicator does not come on
In the event that the “READY” indicator does not come on even after performing the proper procedures for starting the vehicle, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional immediately.
■If the hybrid system is malfunctioning
 P. 543
■If the electronic key battery is depleted
 P. 511
■Operation of the power switch
●If the switch is not pressed shortly and firmly, the power switch mode may not change or the hybrid system may not start.
●If attempting to restart the hybrid system immediately after turning the power switch off,
the hybrid system may not start in some cases. After turning the power switch off, please wait a few seconds before restarting the hybrid system.
■If the smart entry & start system has been deactivated by a customized setting
 P. 578
WARNING
■When starting the hybrid system
Always start the hybrid system while sittin g in the driver’s seat. Do not depress the accelerator pedal while starting the hybrid system under any circumstances.
Doing so may cause an accident resu lting in death or serious injury.
■Caution while driving
If hybrid system failure occurs while the ve hicle is moving, do not lock or open the
doors until the vehicle reaches a safe and c omplete stop. Activation of the steering lock in this circumstance may lead to an accide nt, resulting in death or serious injury.
■Stopping the hybrid system in an emergency
If you want to stop the hybrid system in an emergency while driving the vehicle, press and hold the power switch for more than 2 seconds, or press it briefly 3 times or morein succession. ( P. 529)
However, do not touch the power switch while driving except in an emergency. Turning the hybrid system off while driving will not cause loss of steering or braking control, however, power assist to the steering will be lost. This will make it more difficult to steer
smoothly, so you should pull over and stop the vehicle as soon as it is safe to do so.

4486-2. Using the interior lights
RC300h_EE(OM24740E)
Turns the lights on/off (touch the lights)
●Illuminated entry system: The lights automatically turn on/off according to power switch mode, the presence of the electronic key, whether the doors are locked/unlocked, andwhether the doors are opened/closed.
●If the interior lights remain on when the powe r switch is turned off, the lights will go off automatically after 20 minutes.
●In the following cases, the front interior lights and 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.
●Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: P. 615)
Personal lights
NOTICE
●Never remove the lens for the front interior light and personal lights. Otherwise, the
lights will be damaged.
●To prevent 12-volt battery discharge, do not leave the lights on longer than necessary when the hybrid system is off.

5818-2. Steps to take in an emergency
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When trouble arises
RC300h_EE(OM24740E)
■Stopping the hybrid system
Shift the shift lever to P and press the power switch as you normally do when stopping the hybrid system.
■Replacing the key battery
As the above procedure is a temporary measur e, it is recommended that the electronic key battery be replaced immediately when the battery is depleted. ( P. 511)
■Alarm (if equipped)
Using the mechanical key to lock the doors will not set the alarm system. If a door is unlocked using the mechanical key when the alarm system is set, the alarm may be triggered.
■Changing power switch modes
Release the brake pedal and press the power switch in step above. The hybrid system does not start and modes will be changed each time the switch is
pressed. ( P. 216)
■When the electronic key does not work properly
●Make sure that the smart entry & start system has not been deactivated in the
customization setting. If it is off, turn the function on. (Customizable features P. 607)
●Check if battery-saving mode is set. If it is set, cancel the function. (P. 157)
WARNING
■When using the mechanical key and operating the power windows or moon roof
Operate the power window or moon roof after checking to make sure that there is no possibility of any passenger having any of their body parts caught in the window or moon roof.
Also, do not allow children to operate the me chanical key. It is possible for children and other passengers to get caught in the power window or moon roof.
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