15Pictorial index
GS450h_300h_OM_OM30F00E_(EE)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 250
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 354
To prevent freezing (windshield wiper de-icer)
*1. . . . . . . . . . . . . . . . . . . . . . . . P. 372
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 408
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 256
Refueling method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 256
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 569
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 432
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 575
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 3 54
Checking/rotation/tire pressure warning system
*1 . . . . . . . . . . . . . . . . . . . . . P. 432
Coping with flat tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 517, 528
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 417
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 417
Engine compartment cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 421
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 570
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 556
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 48 4
Headlights/front position lights/daytime running lights . . . . . . . . . . . . P. 236
Front turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 230
Front fog lights/rear fog light
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 249
Side turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 230
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 236
Stop lights
Emergency brake signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 345
Rear turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 230
Back-up light
*2
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 224
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 236
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 458, Watts: P. 578)
*1: If equipped
*2: They may be located on the opposite side depending on the target region.
8
9
10
11
12
2024-1. Before driving
GS450h_300h_OM_OM30F00E_(EE)
■Drum-in-disc type parking brake system
Your vehicle has a drum-in-disc type parking brake system. This type of brake system
needs bedding-down of the brake shoes periodically or whenever the parking brake
shoes and/or drum are replaced. Have any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional perform the bedding down operation.
■Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability of the cor-
rect fuel. ( →P. 5 6 9 )
2564-4. Refueling
GS450h_300h_OM_OM30F00E_(EE)
Opening the fuel tank cap
●Turn the power switch off and ensure that all the doors and windows are
closed.
●Confirm the type of fuel.
■Fuel types
→ P. 5 7 9
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that only accom-
modates the special nozzle on unleaded fuel pumps.
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle
WA R N I N G
■When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do so may
result in death or serious injury.
●After exiting the vehicle and before opening the fuel door, touch an unpainted metal
surface to discharge any static electricity. It is important to discharge static electricity
before refueling because sparks resulting fr om static electricity can cause fuel vapors
to ignite while refueling.
●Always hold the grips on the fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fuel tank cap is loosened. Wait until the
sound cannot be heard before fully removing the cap. In hot weather, pressurized fuel
may spray out the filler neck and cause injury.
●Do not allow anyone that has not discharged static electricity from their body to come
close to an open fuel tank.
●Do not inhale vaporized fuel.
Fuel contains substances that are harmful if inhaled.
●Do not smoke while refueling the vehicle.
Doing so may cause the fuel to ignite and cause a fire.
●Do not return to the vehicle or touch any person or object that is statically charged.
This may cause static electricity to build up, resulting in a possible ignition hazard.
■When refueling
Observe the following precautions to prevent fuel overflowing from the fuel tank:
●Securely insert the fuel nozzle into the fuel filler neck.
●Stop filling the tank after the fuel nozzle automatically clicks off.
●Do not top off the fuel tank.
3635-1. Remote Touch screen
5
Interior features
GS450h_300h_OM_OM30F00E_(EE)
Press the “MENU” button on the Remote Touch to display the “Menu” screen.
The display may differ depending on the type of the system.
12.3-inch display: When an interruption screen is being displayed on the side display,
the “Menu” screen will be shown on the main display.
“Menu” screen
XVehicles with 8-inch display XVehicles with 12.3-inch display
SwitchFunction
Select to display the map screen or the navigation menu screen.*1, 2
Select to display the radio control screen.*1
Select to operate the media control screen.*1
Select to display the hands-free operation screen.*1
Select to display the fuel consumption screen. (→P. 126, 129)
Select to display the “Information” screen.*1
Select to display the air conditioning control screen. ( →P. 3 6 6 )
Select to display the “Setup” screen.*1
543
7
7-2. Steps to take in an emergency
When trouble arises
GS450h_300h_OM_OM30F00E_(EE)
If the hybrid system will not start
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. (
→P. 549)
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●There may be a malfunction in the immobilizer system. ( →P. 8 4 )
●There may be a malfunction in the steering lock system.
●The hybrid system may be malfunctioning due to an electrical problem such
as electronic key battery depletion or a blown fuse. However, depending on
the type of malfunction, an interim measure is available to start the hybrid sys-
tem. ( →P. 544)
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( →P. 5 5 1 )
●The 12-volt battery terminal connections may be loose or corroded.
(→ P. 4 2 8 )
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( →P. 5 5 1 )
●One or both of the 12-volt battery terminals may be disconnected. ( →P. 4 2 8 )
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional if the problem cannot be repaired, or if repair procedures are
unknown.
Reasons for the hybrid system not starting vary depending on the situation.
Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct starting proce-
dure is being followed. ( →P. 217)
The interior lights and headlights are dim, or the horn does not sound or
sounds at a low volume.
The interior lights and he adlights do not turn on, or the horn does not
sound.
569
8
8-1. Specifications
Vehicle specifications
GS450h_300h_OM_OM30F00E_(EE)
Fuel
Fuel type
EU area:
Unleaded gasoline conforming to
European standard EN228 only
Except EU area:
Unleaded gasoline only
Research Octane
NumberGS450h95 or higher
GS300h91 or higher
Fuel tank capacity (Reference)66 L (17.4 gal., 14.5 Imp.gal.)
Electric motor (traction motor)
Ty p ePermanent magnet synchronous motor
Maximum outputGS450h147 kW
GS300h105 kW
Maximum torqueGS450h275 N•m (28.0 kgf•m, 202.8 ft•lbf)
GS300h300 N•m (30.6 kgf•m, 221.3 ft•lbf)
Hybrid battery (traction battery)
Ty p eNickel-Metal hydride battery
Vo l t a g e7. 2 V/m o d u l e
Capacity6.5 Ah (3HR)
QuantityGS450h40 modules
GS300h32 modules
Overall voltageGS450h288 V
GS300h230.4 V
608Alphabetical index
GS450h_300h_OM_OM30F00E_(EE)
Fuel ............................................................. 256Capacity ................................................ 569
Fuel gauge.............................................. 105
Information ............................................ 579
Refueling ................................................256
Type ........................................................ 569
Warning light ....................................... 478
Warning messages...........................482
Fuel consumption Average fuel consumption .............. 113
Average fuel consumption after refueling ...................................... 113
Current fuel consumption................ 113
Fuel filler door ........................................ 256
Refueling ................................................256
When the fuel filler door cannot be opened .........................258
Fuses ..........................................................453
Gauges ...................................................... 104
Glove box ................................................390
Glove box light ......................................390
Grille Shutter system
Warning message.............................482 Hands-free system
(for cellular phone)
*
Head restraints ....................................... 183
Headlight cleaner....................... 251, 253
Headlights ............................................... 236 Adaptive Front-lighting System (AFS)................................... 238
AHS (Adaptive High-beam System) ............................................... 240
Automatic High Beam system.................................................. 245
Follow me home system.................237
Headlight leveling warning message ............................................. 482
Light switch........................................... 236
Replacing light bulbs ....................... 465
Head-up display....................................... 119
Heated steering wheel........................ 381
Heaters ..................................................... 366
Air conditioning system ................. 366
Heated steering wheel ................... 382
Outside rear view mirrors .............372
Seat heaters.......................................... 382
High-voltage components ...................79
Hood............................................................ 417 Open ......................................................... 417
Warning message ............................ 482
G
H
614Alphabetical index
GS450h_300h_OM_OM30F00E_(EE)
Refueling .................................................. 256Capacity ................................................ 569
Fuel types .............................................. 569
Opening the fuel tank cap ............258
When the fuel filler door cannot be opened .........................258
Regenerative braking ............................ 76
Remote Touch
*
Replacing Electronic key battery........................451
Fuses ........................................................453
Light bulbs ............................................ 458
Tires ............................................................517
Rev indicator............................................ 106
Rev peak .................................................... 106
Road accident cautions.........................82
Seat belt reminder light ...................... 478
Seat belts .....................................................38
Adjusting the seat belt ........................ 39
Child restraint system installation.............................................. 66
Cleaning and maintaining
the seat belt .......................................... 411
Emergency Locking
Retractor (ELR).................................. 40
How to wear your seat belt ............. 38
How your child should wear the seat belt .......................................... 40
Pregnant women, proper seat belt use ........................................... 41
Reminder light and buzzer ........... 478
Seat belt pretensioners ...................... 39
SRS warning light............................... 476 Seat heaters ............................................ 382
Seat position memory...........................178
Seat ventilators ...................................... 382
Seats............................................................. 175
Adjustment ............................................. 175
Adjustment precautions................... 176
Child seats/child restraint system installation ............................. 65
Cleaning .................................................. 410
Driving position memory ................ 178
Head restraints .....................................183
Power easy access system............. 178
Properly sitting in the seat................ 36
Seat heaters.......................................... 382
Seat position memory ....................... 178
Seat ventilators ................................... 382
Sensor Automatic headlight system ........ 239
Automatic High Beam system ... 245
Inside rear view mirror .....................189
Intrusion sensor and tilt sensor...... 93
Lexus parking assist-sensor
*
LDA (Lane Departure Alert with steering control)................... 290
LKA (Lane-Keeping Assist) .......... 281
Radar sensor ........................... 262, 338
Rain-sensing windshield wipers .................................................. 254
Service plug ................................................79
Service reminder indicators ............... 98
S-FLOW mode ..................................... 367
S