2019 LEXUS GS300H key battery

1553-2. Opening, closing and locking the doors and trunk
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Operation of each component
GS450h_300h_OM_OM30F92E_(EE)
■Electronic Key Battery-Saving Function
When battery-saving mode is set, battery de pletion is minimized by stopping the elec- tronic key from receiving radio waves.
■Conditions affecting operation
The smart entry & start system uses weak ra dio waves. In the following situations, the communication between the electronic key and the vehicle may be affected, preventingthe smart entry & start system, wireless re mote control and immobilizer system from
operating properly. (Ways of coping: P. 527)
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, gas station, radio station, large display, airport or
other facility that gene rates strong radio waves or electrical noise
●When the electronic key is in contact with, or is covered by the following metallic objects
• Cards to which aluminum foil is attached • Cigarette boxes that have aluminum foil inside• Metallic wallets or bags
•Coins • Hand warmers made of metal• Media such as CDs and DVDs
●When other wireless keys (that emit radio waves) are being used nearby
●When carrying the electronic key together with the following devices that emit radio
waves
• When carrying a portable radio, cellular phone, cordless phone or other wireless communication device
• Another vehicle’s electronic key or a wireless key that emits radio waves • Personal computers or personal digital assistants (PDAs)• Digital audio players
• Portable game systems
●If window tint with a metallic content or me tallic objects are attached to the rear win-
dow
●When the electronic key is placed near a battery charger or electronic devices
Press twice while pressing and holding
. Confirm that the electronic key indica-
tor flashes 4 times. While the battery-saving mode is set, the smart
entry & start system cannot be used. To cancel the function, press any of the electronic key but-tons.

1563-2. Opening, closing and locking the doors and trunk
GS450h_300h_OM_OM30F92E_(EE)
■Note for the entry function (if equipped)
●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 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. However, only the doors detecting the electronic key can be usedto unlock the vehicle.
●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 the electronic key is within the effective range.(The doors will automatically be locked after approximately 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.
●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. 155)
●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, or use the lock sensor on thelower part of the door handle.
●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.
●Gripping the door handle when wearing a glove may not unlock the door.
●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.

1943-5. Opening, closing the windows and moon roof
GS450h_300h_OM_OM30F92E_(EE)
■When the window cannot be opened or closed
When the jam protection function or catch protection function operates unusually and the door window cannot be opened or closed , perform the following operations with the
power window switch of that door.
●Stop the vehicle. With the power switch in ON mode, within 4 seconds of the jam pro- tection function or catch protection function activating, continuously operate the
power window switch in the one-touch clos ing direction or one-touch opening direc- tion so that the door window can be opened and closed.
●If the door window cannot be opened and closed even when performing the above
operations, perform the following pr ocedure for function initialization.
Turn the power switch to ON mode.
Pull and hold the power window switch in the one-touch closing direction and com-
pletely close the door window.
Release the power window switch for a mo ment, resume pulling the switch in the one-touch closing direction, and hold it there for approximately 6 seconds or more.
Press and hold the power window switch in the one-touch opening direction. After the door window is completely opened, cont inue holding the switch for an additional 1 second or more.
Release the power window switch for a moment, resume pushing the switch in the one-touch opening direction, and hold it there for approximately 4 seconds or more.
Pull and hold the power window switch in the one-touch closing direction again. After the door window is completely closed, continue holding the switch for a fur-ther 1 second or more.
If you release the switch while the window is moving, start again from the beginning. If the window reverses and cannot be fully closed or opened, have the vehicle inspected
by any authorized Lexus retailer or Lexus auth orized repairer, or any reliable repairer.
■Door lock linked window operation
●The power windows can be opened and closed using the mechanical key.* (P. 527)
●The power windows can be opened and closed using the wireless remote control.*(P. 139)
*: These settings must be customized at any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
■When the 12-volt battery is disconnected
The window lock switch is disabled. If ne cessary, 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 thepower windows open.
■Customization
Settings (e.g. linked door lock operation) can be changed. (Customizable features: P. 561)
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2194-2. Driving procedures
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Driving
GS450h_300h_OM_OM30F92E_(EE)
If the hybrid system is stopped with the shift lever in a position other than P, the
power switch will not be turned off but instead be turned to ACCESSORY
mode. Perform the following procedure to turn the switch off:
Check that the parking brake is set.
Shift the shift lever to P.
Check that “Turn Off Vehicle” is displayed on the multi-information display
and then press the power switch once.
Check that “Turn Off Vehicle” on the multi-information display is off.
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON mode (the
hybrid system is not operating) for more than an hour with the shift lever in P, the power switch will automatically turn off. However, this function cannot entirely prevent 12-voltbattery discharge. Do not leave the vehicle with the power switch in ACCESSORY or
ON mode for long periods of time when the hybrid system is not operating.
■Sounds and vibrations specific to a hybrid vehicle
 P. 79
■Electronic key battery depletion
 P. 136
■When the ambient temperature is low, such as during winter driving conditions
When starting the hybrid system, the flashing time of the “READY” indicator may be long. Leave the vehicle as it is until the “REA DY” indicator is steady on, as steady means the vehicle is able to move.
■Conditions affecting operation
 P. 155
■Notes for the push-start function
 P. 157
■If the hybrid system does not start
●The immobilizer system may not have been deactivated. (P. 85)
Contact any authorized Lexus retailer or Le xus authorized repairer, or any reliable repairer.
●Check that the shift lever is securely set in P. The hybrid system may not start if the shift
lever is displaced out of P. “Shift to P posi tion to Start” will be displayed on the multi- information display.
■Steering lock
After turning the power switch off and opening and closing the doors, the steering wheel will be locked due to the steering lock func tion. Operating the power switch again auto- matically cancels the steering lock.
When stopping the hybrid system with the shift lever in a position other
than P
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2204-2. Driving procedures
GS450h_300h_OM_OM30F92E_(EE)
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be suspended if the hybrid system is turned on and off repeatedly in a short period of time. In this case, refrain
from operating the hybrid system. After abou t 10 seconds, the steering lock motor will resume functioning.
■When “Check Entry & Start System” will be displayed on the multi-information display
The system may be malfunctioning. Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer 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 retailer orLexus authorized repairer, or any reliable repairer immediately.
■If the hybrid system is malfunctioning
 P. 466
■If the electronic key battery is depleted
 P. 435
■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 in a customized setting
 P. 527
“Steering Lock active” will be displayed on the
multi-information display.
Check that the shift lever is set in P. Press the power switch while turning the steering wheel
left and right.

3685-3. Using the interior lights
GS450h_300h_OM_OM30F92E_(EE)
●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.
●Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: P. 561)
NOTICE
To prevent 12-volt battery discharge, do not leave the lights on longer than necessary when the hybrid system is off.

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6Maintenance and care
GS450h_300h_OM_OM30F92E_(EE)
6-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ................390
Cleaning and protecting
the vehicle interior.................. 394
6-2. Maintenance
Maintenance
requirements ............................ 397
6-3. Do-it-yourself maintenance
Do-it-yourself service
precautions................................ 399
Hood ................................................ 401
Positioning a floor jack ............ 402
Engine compartment ...............403
12-volt battery ...............................412
Tires ...................................................416
Tire inflation pressure .............. 429
Wheels ............................................ 431
Air conditioning filter ............... 433
Electronic key battery.............. 435
Checking and replacing
fuses.............................................. 437
Light bulbs..................................... 442

3916-1. Maintenance and care
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Maintenance and care
GS450h_300h_OM_OM30F92E_(EE)
■High-pressure car washes
●Do not allow the nozzles of the car wash to come within close proximity of the windows.
●Before using the car wash, check that the fuel filler door on your vehicle is closed prop-
erly.
■Notes for a smart entry & start system (vehicles with entry function)
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 proce- dures to wash the vehicle:
●Place the key in a position 2 m (6 ft.) or more separate from the vehicle while the vehi-
cle is being washed. (Take care to ensure that the key is not stolen.)
●Set the electronic key to battery-saving mode to disable the smart entry & start system. ( P. 155)
■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 and wax as used on the paint.
●Do not use detergent on the wheels when they are hot, for example after driving for long distance in the hot weather.
●Wash detergent from the wheels immediately after use.
■Brake caliper coating (vehicles with orange brake calipers for F SPORT models)
●When using detergent, use neutral detergent.
Do not use hard brushes or abrasive clea ners, as they will damage the coating.
●Do not use detergent on the brake calipers when they are hot.
●Wash detergent off 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 reta iler or Lexus authorized repairer, or any reliable repairer.