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GS450h_300h_OM_OM30F92E_(EE)
Pictorial indexSearch by illustration
1For safety
and securityMake sure to read through them
2Instrument cluster
How to read the gauges and meters, the variety of warning
lights and indicators, etc.
3Operation of
each componentOpening and closing the doors and windows, adjustment
before driving, etc.
4Driving
Operations and advice which are necessary for driving
5Interior featuresUsage of the interior features, etc.
6Maintenance
and careCaring for your vehicle and maintenance procedures
7When trouble
arisesWhat to do in case of malfunction or emergency
8Vehicle
specificationsVehicle specifications, customizable features, etc.
IndexSearch by symptom
Search alphabetically
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1 8
7
6
5
4
3
2
GS450h_300h_OM_OM30F92E_(EE) 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
7-1. Essential information Emergency flashers...................452
If your vehicle has to be stopped in an
emergency.................................453 7-2. Steps to take in an
emergency
If your vehicle needs to be towed ................................454
If you think something is wrong .......................................459
If a warning light turns on or a warning buzzer
sounds..........................................460
If a warning message is displayed................................. 466
If you have a flat tire (vehicles with spare tire) ..... 498
If you have a flat tire (vehicles without spare
tire) ............................................... 509
If the hybrid system will not start................................523
If the parking brake cannot be released.................525
If the electronic key does not operate properly ............. 527
If the 12-volt battery is discharged ................................ 530
If your vehicle overheats .........535
If the vehicle becomes stuck.............................................. 542
7When trouble arises
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TABLE OF CONTENTS6
GS450h_300h_OM_OM30F92E_(EE)8-1. Specifications
Maintenance data (fuel, oil level, etc.)...................546
Fuel information ......................... 559
8-2. Customization Customizable features ............. 561
8-3. Initialization Item to initialize ........................... 576
What to do if... (Troubleshooting) ...............................578
Alphabetical index................................ 582
8Vehicle specifications
Index
For information regarding the equipment listed below, refer to the “NAVIGA-
TION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”
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1-2. Hybrid system
1
GS450h_300h_OM_OM30F92E_(EE)
For safety and security
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sound or vibration ev en though the vehicle is able to move with
the “READY” indicator is illuminated. For sa fety, apply the parking brake and make sure
to shift the shift lever to P when parked.
The following sounds or vibrations may occu r when the hybrid system is operating and
are not a malfunction:
●Motor sounds may be heard from the engine compartment.
●Sounds may be heard from the hybrid battery (traction battery) behind the rear seats
when the hybrid system starts or stops.
●Relay operating sounds such as a snap or so ft clank will be emitted from the hybrid bat-
tery (traction battery), behind the rear se ats, when the hybrid system is started or
stopped.
●Sounds from the hybrid system may be heard when the trunk lid is open.
●Sounds may be heard from the transmission when the gasoline engine starts or stops,
when driving at low speeds, or during idling.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard due to regenerative braking when the brake pedal is depressed
or as the accelerator pedal is released.
●Vibration may be felt when the gasoline engine starts or stops.
●Cooling fan sounds may be heard from the air intake vents on the both sides of the rear
seatback.
■Maintenance, repair, recycling, and disposal
Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer regarding maintenance, repair, recy cling and disposal. Do not dispose of the
vehicle yourself.
■Customization
Settings (e.g. on/off operation of the EV indicator) can be changed.
(Customizable features: P. 561)
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1
1-3. Theft deterrent system
GS450h_300h_OM_OM30F92E_(EE)
For safety and security
Immobilizer system
The indicator light flashes after the
power switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the power switch has been turned to
ACCESSORY or ON mode to indi-
cate that the system has been canceled.
■System maintenance
The vehicle has a maintenance-free type immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touching a key to the security system (key with a
built-in transponder chip) of another vehicle
The vehicle’s keys have built-in transpon der chips that prevent the hybrid sys-
tem from starting if a key has not been previously registered in the vehicle’s
on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
This system is designed to help prev ent vehicle theft but does not guarantee
absolute security against all vehicle thefts.
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921-3. Theft deterrent system
GS450h_300h_OM_OM30F92E_(EE) Do one of the following to deactivate or stop the alarm: ●
Unlock the doors or open the trunk using the entry function or wireless
remote control.
● Turn the power switch to ACCESSORY or ON mode, or start the hybrid sys-
tem. (The alarm will be deactivated or stopped after a few seconds.)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the follow- ing:
●Nobody is in the vehicle.
●The windows and moon roof (if equipped) are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
Deactivating or stopping the alarm
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2. Instrument cluster
2
Instrument cluster
GS450h_300h_OM_OM30F92E_(EE) Engine coolant temperature gauge
Displays the engine coolant temperature
Tachometer/Hybrid System Indicator
Tachometer:
Displays the engine speed
in revolutions per minute.
Hybrid System Indicator:
Displays hybrid system outp ut or regeneration level (P. 108)
Outside temperature
Displays the outside temperature within the range of -40 C (-40 F) to 50 C
(122 F). Low outside temperature indicator comes on when the ambient temperature
is 3 C (37 F) or lower.
Clock
Time displayed is linked to the anal og clock on the instrument panel. (P. 378)
Speedometer
Displays the vehicle speed
Fuel gauge
Displays the quantity of fuel remaining in the tank
Multi-information display
Presents the driver with a variety of driving-related data ( P. 111)
Displays warning messages in case of a malfunction (P. 466)
Odometer, trip meter, maintenance required information and speed warning
display
Odometer:
Displays the total distance the vehicle has been driven
Trip meter:
Displays the distance the vehicle has been driven since the meter was last reset. Trip
meters “A” and “B” can be used to record and display different distances inde-
pendently.
Maintenance required information:
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2. Instrument cluster
2
Instrument cluster
GS450h_300h_OM_OM30F92E_(EE) Switches between odometer, trip meter
and maintenance required information
displays. When the trip meter is dis-
played, pressing and holding the button
will reset the trip meter.
The brightness of the instrument panel lights can be adjusted.
Darker
Brighter
Changing the display
Instrument panel light control
1
2
