key Lexus GS300h 2015 Service Manual

2204-2. Driving procedures
GS450h_300h_OM_OM30F00E_(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 about 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
dealer or repairer, or another duly qualified 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. 4 8 2
■If the electronic key battery is depleted
→P. 4 5 1
■Operation of the power switch
●When operating the power switch, one short, firm press is enough. If the switch is
pressed improperly, the hybrid system may no t start or the power switch mode may not
change. It is not necessary to press and hold the switch.
●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. 5 4 8
“Steering Lock active” w
ill 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.

3745-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30F00E_(EE)
■Adjusting the position of and op ening and closing the air outlets
Direct air flow to the left or right, up or down.
Turn the knob to open or close the vent.
■Registering air conditioning settings to electronic keys
●Unlocking the vehicle using an electronic key and turning the power switch to ON
mode will recall that key’s regist ered air conditioning settings.
●When the power switch is turned off, the cu rrent air conditioning settings will automati-
cally be registered to the electronic key that was used to unlock the vehicle.
●The system may not operate correctly if more than one electronic key is in the vicinity or
if the smart entry & start system is used to unlock a passenger door.
●Settings for the electronic key and the corresponding door can be changed. Contact
any authorized Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and the ambi-
ent conditions.
Therefore, the fan may stop for a while until wa rm or cool air is ready to flow immediately
after is pressed.
Cool air may blow around the upper body even when the heater is on due to sunlight.
■Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high. Turning “A/C”
on will dehumidify the air from the outlets and defog the windshield effectively.
●If you turn “A/C” off, the windows may fog up more easily.
●The windows may fog up if the recirculated air mode is used.
XFront center outlets and front side
outletsXRear seat outlets
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3885-3. Using the interior lights
GS450h_300h_OM_OM30F00E_(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, and
whether the doors are opened/closed.
●If the interior lights remain on when the power 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. 5 8 1 )
NOTICE
To prevent 12-volt battery discharge, do not leave the lights on longer than necessary
when the hybrid system is off.

3905-4. Using the storage features
GS450h_300h_OM_OM30F00E_(EE)
Open (press the button)
Unlock with the mechanical key
Lock with the mechanical key
●The glove box light turns on when the tail lights are on.
●The trunk opener main switch is located in the glove box. (→P. 1 4 8 )
●The insert inside the glove box can be removed.
●An SRS knee airbag for the front passenger’s seat is built into the glove box door.
(→ P. 4 3 )
Using with half-open
Grip the knob to release the lock,
and slide the armrest as far back.
Using with fully open
Grip the knob to release the lock,
and lift the armrest to open.
Glove box
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Console box
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405
6Maintenance and care
GS450h_300h_OM_OM30F00E_(EE)
6-1. Maintenance and careCleaning and protecting the vehicle exterior.................406
Cleaning and protecting the vehicle interior................... 410
6-2. Maintenance Maintenance requirements...............................413
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................. 415
Hood ................................................. 417
Positioning a floor jack .............. 418
Engine compartment ................ 419
12-volt battery ............................. 428
Tires.................................................. 432
Tire inflation pressure ............... 445
Wheels ............................................447
Air conditioning filter ............... 449
Electronic key battery ................451
Checking and replacing fuses.............................................. 453
Light bulbs..................................... 458

4066-1. Maintenance and care
GS450h_300h_OM_OM30F00E_(EE)
Cleaning and protecti ng the vehicle exterior
●Working from top to bottom, liberally apply water to the vehicle body, wheel
wells and underside of the vehicle to remove any dirt and dust.
●Wash the vehicle body using a sponge or soft cloth, such as a chamois.
●For hard-to-remove marks, use car wash soap and rinse thoroughly with
water.
●Wipe away any water.
●Wax the vehicle when the waterproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the vehicle body is cool.
■Self-restoring coat
The vehicle body has a self-restoring coating that is resistant to small surface scratches
caused in a car wash etc.
●The coating lasts for 5 to 8 years from when the vehicle is delivered from the plant.
●The restoration time differs depending on the depth of the scratch and outside temper-
ature. The restoration time may become shorter when the coating is warmed by apply-
ing warm water.
●Deep scratches caused by keys, coins, etc. cannot be restored.
●Do not use wax that contain abrasives.
■Automatic car washes
●Fold the mirrors before washing the vehicle. Start washing from the front of the vehicle.
Make sure to extend the mirrors before driving.
●Brushes used in automatic car washes may scratch the vehicle surface and harm your
vehicle’s paint.
●Rear spoiler (if equipped) may not be wash able in some automatic car washes. There
may also be an increased risk of damage to vehicle.
Perform the following to protect the vehicle and maintain it in prime condi-
tion:

4076-1. Maintenance and care
6
Maintenance and care
GS450h_300h_OM_OM30F00E_(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. 1 5 5 )
■Aluminum wheels
●Remove any dirt immediately by using a neut ral 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 cleaners, 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 contain 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.

429 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30F00E_(EE)
The meanings of each caution symbol on the top of the 12-volt battery are as fol-
lows:
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following precautions before recharging:
●If recharging with the 12-volt 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 12-volt battery.
■After recharging/reconnecting the 12-volt battery
●The hybrid system may not start. Follow the procedure below to initialize the system.Shift the shift lever to P.
Open and close any of the doors.
Restart the hybrid system.
●Unlocking the doors using the smart entry & start system may not be possible immedi-
ately after reconnecting the 12-volt battery. If this happens, use the wireless remote
control or the mechanical key to lock/unlock the doors.
●Start the hybrid system with the power switch in ACCESSORY mode. The hybrid sys-
tem may not start with the power switch turned off. However, the hybrid system will
operate normally from the second attempt.
●The power switch mode is recorded by the vehicle. If the 12-volt battery is reconnected,
the vehicle will return the power switch mode to the status it was in before the 12-volt
battery was disconnected. Make sure to turn off the power switch before disconnect
the 12-volt battery. Take extra care when connecting the 12-volt battery if the power
switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts at all methods above, contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped professional.
Caution symbols
No smoking, no naked
flames, no sparks12-volt battery acid
Shield eyesNote operatin g instructions
Keep away from childrenExplosive gas
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451
6
6-3. Do-it-yourself maintenance
Maintenance and care
GS450h_300h_OM_OM30F00E_(EE)
Electronic key battery
●Flathead screwdriver
●Small flathead screwdriver
●Lithium battery CR2032
Take out the mechanical key.
Remove the cover.
To prevent damage to the key, cover the
tip of the screwdriver with a rag.
Remove the battery cover.
To prevent damage to the key, cover the
tip of the screwdriver with a rag.
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
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4526-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30F00E_(EE)
Remove the depleted battery.
Insert a new battery with the “+” termi-
nal facing up.
■Use a CR2032 lithium battery
●Batteries can be purchased at any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional, local electrical appliance shops or camera stores.
●Replace only with the same or equivalent type recommended by the manufacturer.
●Dispose of used batteries according to the local laws.
■When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealers. Your Lexus dealer can
replace the battery for you.
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart entry & start system and wireless remote control will not function properly.
●The operational range will be reduced.
4
WA R N I N G
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking. Keep away
from children. Failure to do so could result in death or serious injury.
■Lithium battery precautions
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other component inside the remote control.
●Do not bend either of the battery terminals.