engine Lexus GS300h 2015 Manual PDF

5728-1. Specifications
GS450h_300h_OM_OM30F00E_(EE)
Cooling system
Gasoline engine
Power control unit
Left-hand drive vehiclesRight-hand drive vehicles
Capacity
GS450h9.2 L (9.7qt.,
8.1 Imp.qt.)2.1 L (2.2qt.,
1.8 Imp.qt.)1.9 L (2.0qt.,
1.7 Imp.qt.)
GS300h8.1 L (8.6 qt.,
7.1 Imp.qt.)1.6 L (1.7 qt.,
1.4 Imp.qt.)1.8 L (1.9 qt.,
1.6 Imp.qt.)
Coolant typeUse either of the following:• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili-cate, non-amine, non-nitrite, and non-borate cool-
ant with long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system
Spark plug
Make
GapDENSO FK20HBR8
0.8 mm (0.031 in.)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

579
8
8-1. Specifications
Vehicle specifications
GS450h_300h_OM_OM30F00E_(EE)
Fuel information
■Use of ethanol blended gasoline in a gasoline engine
Lexus allows the use of ethanol blended gasoline where the ethanol content is up to 10%.
Make sure that the ethanol blended gasoline to be used has a Research Octane Number
that follows the above.
■If your engine knocks
●Consult any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
●You may occasionally notice light knocking fo
r a short time while accelerating or driv-
ing uphill. This is normal and there is no need for concern.
XGS450h
EU area:
You must only use unleaded gasoline conforming to European standard
EN228.
Select unleaded gasoline with a Research Octane Number of 95 or higher
for optimum engine performance.
Except EU area:
You must only use unleaded gasoline.
Select unleaded gasoline with a Research Octane Number of 95 or higher.
XGS300h
EU area:
You must only use unleaded gasoline conforming to European standard
EN228.
Select unleaded gasoline with a Research Octane Number of 91 or higher for
optimum engine performance.
Except EU area:
You must only use unleaded gasoline.
Select unleaded gasoline with a Research Octane Number of 91 or higher for
optimum engine performance.

5808-1. Specifications
GS450h_300h_OM_OM30F00E_(EE)
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper fuels are used, the engine will be damaged.
●Do not use leaded gasoline.
Leaded gasoline will cause the three-way catalytic converter to lose its effectiveness
and the emission control system to function improperly.
●EU area: Bioethanol fuel sold under names such as “E50” or “E85” and fuel contain-
ing a large amount of ethanol should not be used. The use of these fuels will damage
the vehicle’s fuel system. In case of any doubt, ask any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
●Except EU area: Bioethanol fuel sold under names such as “E50” or “E85” and fuel
containing a large amount of ethanol should not be used. Your vehicle can use gaso-
line mixed with 10% max ethanol. The use of fuel with more than 10% ethanol content
(E10) will damage the vehicle’s fuel system. You must ensure that refueling is carried
out only from a source where fuel specification and quality can be guaranteed. In case
of any doubt, ask any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
●Do not use the methanol blended gasoline such as M15, M85, M100. The use of gas-
oline containing methanol may cause engine damage or failure.

604Alphabetical index
GS450h_300h_OM_OM30F00E_(EE)
Cargo hooks........................................... 394
CD player
*
Chains .......................................................355
Child restraint system ............................ 56Baby seats, definition .......................... 57
Baby seats, installation ....................... 66
Child seats, definition.......................... 57
Child seats, installation....................... 66
Installing CRS with ISOFIX rigid anchors........................................ 69
Installing CRS with seat belts.......... 66
Installing CRS with top strap .......... 70
Junior seats, definition ........................ 57
Junior seats, installation .....................68
Child safety................................................. 55 12-volt battery
precautions........................... 430, 555
Airbag precautions .............................. 45
Child restraint system......................... 56
How your child should
wear the seat belt ..................... 39, 40
Installing child restraints .................... 65
Moon roof precautions ................... 198
Power window lock switch.............193
Power window precautions .......... 195
Rear door child-protectors ............143
Removed electronic key battery precautions ....................... 452
Seat belt comfort guide ..................... 39
Seat belt precautions .......................... 42
Seat heater precautions .................. 381
Trunk precautions ..............................149
Child-protectors ................................... 143 Cleaning.........................................406, 410
Aluminum wheels.............................. 407
Exterior ................................................... 406
Interior.......................................................410
Seat belts ................................................... 411
Clock ...............................................105, 398
Coat hooks.............................................. 402
Condenser ..............................................427
Console box ........................................... 390
Console box light ...................................391
Coolant..................................................... 425 Capacity..................................................572
Checking ............................................... 425
Preparing and checking
before winter.................................... 354
Cooling system ..................................... 425
Engine overheating .......................... 556
Hybrid system overheating.......... 556
Consumption screen ........................... 126
Cruise control Cruise control ......................................327
Dynamic radar cruise control ....... 315
Dynamic radar cruise control with full-speed range ................... 303
Cup holders ..............................................391
Curtain shield airbags .......................... 43
Customizable features........................ 581

606Alphabetical index
GS450h_300h_OM_OM30F00E_(EE)
Dynamic radar cruise control with full-speed range .......................303
Function ..................................................303
Warning message.............................482
Dynamic Rear Steering (DRS)........345 Function ..................................................345
Warning message.............................482
DVD player
*
Eco drive mode .....................................330
Electric motor (traction motor) ......... 75
Electric Power Steering (EPS)........345 Function ..................................................345
Warning light ....................................... 477
Warning message.............................482
Electronic key.......................................... 134 Battery-saving function.................... 155
If the electronic key does not operate properly ........................... 548
Replacing the battery.........................451
Emergency, in case of
If a warning buzzer sounds .......... 476
If a warning light turns on............... 476
If a warning message is displayed ............................................ 482
If the 12-volt battery is discharged.......................................... 551
If the electronic key does not operate properly ........................... 548
If the hybrid system will not start ........................................................543
If the parking brake cannot be released........................................546 If the shift lever cannot be
shifted from P................................... 545
If you have a flat tire................517, 528
If you think something is wrong .............................................. 475
If your vehicle becomes stuck .... 563
If your vehicle has to be stopped in an emergency ......... 469
If your vehicle needs to be towed ............................................ 470
If your vehicle overheats................ 556
Emergency brake signal.................... 345
Emergency flashers............................. 468
Emergency tire puncture
repair kit ................................................ 528
Energy monitor ....................................... 126
Engine ....................................................... 568 Accessory mode ................................. 218
Compartment ....................................... 419
Engine switch ........................................ 217
Hood ......................................................... 417
How to start the hybrid
system.................................................... 217
Identification number.......................568
Ignition switch (power switch) .................................. 217
Overheating ........................................ 556
Power switch ......................................... 217
Engine compartment cover ...............421
Engine coolant....................................... 425 Capacity..................................................572
Checking ............................................... 425
Preparing and checking before winter.................................... 354
E

607Alphabetical index
GS450h_300h_OM_OM30F00E_(EE)
Engine coolant temperature gauge....................................................... 105
Engine oil.................................................. 422 Capacity .................................................570
Checking ............................................... 422
Oil level warning message ........... 482
Oil pressure warning message..............................................482
Preparing and checking before winter ....................................354
Engine switch ...........................................217 Auto power off function ...................219
Changing the power switch modes ................................................... 218
If your vehicle has to be stopped in an emergency..........469
Starting the hybrid system............... 217
EPS (Electric Power Steering)........345
Function ..................................................345
Warning light ....................................... 477
Warning message.............................482
EV drive mode ....................................... 222
First-aid kit storage net.......................395
Flat tire
Vehicles with spare tire ....................517
Vehicles without spare tire ...........528
Floor mats ................................................... 34
Fluid Brake........................................................ 574
Hybrid transmission ......................... 573
Washer ................................................... 427 Fog lights .................................................. 249
Replacing light bulbs ....................... 465
Switch ...................................................... 249
Follow me home system .................... 237
Footwell light .......................................... 386
Front air conditioning system .......... 366
Front fog lights ....................................... 249 Replacing light bulbs ....................... 465
Switch ...................................................... 249
Wattage ................................................. 465
Front personal lights............................ 387
Front position lights ............................. 236 Light switch........................................... 236
Replacing light bulbs ....................... 465
Welcome light illumination control ...................................................140
Front seats ................................................. 175 Adjustment ............................................. 175
Cleaning .................................................. 410
Correct driving posture.................... 36
Driving position memory ................ 178
Head restraints .....................................183
Power easy access system............. 178
Seat heaters.......................................... 382
Seat position memory ....................... 178
Seat ventilators ................................... 382
Front turn signal lights ........................ 230 Replacing light bulbs ...........459, 465
Turn signal lever................................. 230
Wattage ................................................. 578
F
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

609Alphabetical index
GS450h_300h_OM_OM30F00E_(EE)
HooksCargo hooks........................................394
Coat hooks ...........................................402
Luggage hook..................................... 394
Retaining hooks (floor mat)............. 34
Horn ............................................................ 186
Hybrid battery (traction battery) Location..................................................... 79
Specification ........................................ 569
Hybrid battery (traction battery)
air vents.................................................... 80
Hybrid system ........................................... 75
Emergency shut off system..............80
Energy monitor/consumption screen.......................126
EV drive mode ................................... 222
High voltage components ............... 79
Hybrid System Indicator ................. 108
Hybrid system precautions.............. 79
Hybrid vehicle driving tips ............. 351
If the hybrid system will not start .......................................543
Overheating ........................................ 556
Power (ignition) switch ..................... 217
Regenerative braking ......................... 76
Starting the hybrid system............... 217
Hybrid System Indicator .....................108
Hybrid transmission............................. 224 If the shift lever cannot be shifted from P ...................................545
Paddle shift switches ........................ 226
S mode.....................................................227 Identification ........................................... 567
Engine .....................................................568
Vehicle.................................................... 567
Ignition switch (power switch) .......... 217 Auto power off function ................... 219
Changing the power switch modes.................................................... 218
If your vehicle has to be stopped in an emergency ......... 469
Starting the hybrid system .............. 217
Illuminated entry system....................388
Immobilizer system................................. 84
Indicators .................................................... 101
Initialization Items to initialize ................................. 596
Moon roof............................................... 197
Power windows ................................... 194
Tire pressure warning system.................................................. 434
Initiators (tire pressure warning system)................................................... 443
Inside door handle lights ................... 386
Inside rear view mirror ........................ 188
Instrument panel light control ...........107
Interior lights........................................... 386
Intrusion sensor and tilt sensor .......... 93
ISOFIX rigid anchors ............................ 65I
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

610Alphabetical index
GS450h_300h_OM_OM30F00E_(EE)
JackPositioning the jack ............................ 418
Vehicle-equipped jack ........ 518, 529
Jack handle................................... 518, 529
Jam protection function Moon roof ...............................................197
Power trunk lid......................................149
Power window ......................................193
Keyless entry ........................................... 153 Smart entry & start system ............. 153
Wireless remote control ..................134
Keys ............................................................. 134 Battery-saving function.................... 155
Electronic key ........................................134
Engine switch......................................... 217
If the electronic key does not operate properly ........................... 548
If you lose your keys ................ 136, 137
Key number plate ................................134
Keyless entry ............................... 134, 153
Mechanical key.................................... 135
Power switch ......................................... 217
Replacing the battery.........................451
Warning buzzer ...................................154
Wireless remote control key .........134
Knee airbags.............................................. 43 Language (multi-information
display) .................................................. 582
LDH (Lexus Dynamic Handling
system)................................................... 345
Lever
Auxiliary catch lever........................... 417
Hood lock release lever .................. 417
Shift lever ................................................224
Turn signal lever................................. 230
Wiper lever .......................................... 250
Lexus Dynamic Handling system
(LDH) ..................................................... 345
Lexus parking assist monitor
*
Lexus parking assist-sensor*
Function*
Warning message ............................ 482
Lexus Safety System+......................... 260
AHS (Adaptive High-beam System) ............................................... 240
Automatic High Beam ................... 245
Dynamic radar cruise control ....... 315
Dynamic radar cruise control with full-speed range ................... 303
LDA (Lane Departure Alert with steering control)................... 290
LKA (Lane-Keeping Assist) .......... 281
PCS (Pre-Crash Safety system) ................................................ 269
RSA (Road Sign Assist) ................. 298
License plate lights .............................. 236 Light switch........................................... 236
Replacing light bulbs ....................... 465
Welcome light illumination
control ...................................................140
J
K
L

612Alphabetical index
GS450h_300h_OM_OM30F00E_(EE)
Multi-information display ...................... 111Audio system-linked ............................. 111
Drive information .................................. 113
Dynamic radar cruise control ...... 315
Dynamic radar cruise control with full-speed range....................303
G-force...................................................... 114
LDA (Lane Departure Alert with steering control) ...................290
LKA (Lane-Keeping Assist) .......... 281
Navigation system-linked................... 111
Settings....................................................... 115
Switch settings........................................ 115
Switching the display ...........................112
nanoe  system ..................................... 376
Navigation system
*
Odometer................................................. 105
Oil Differential oil ....................................... 574
Engine oil ...............................................570
Opener
Fuel filler door......................................256
Hood .......................................................... 417
Trunk ..........................................................146
Outer foot lights
Location................................................. 386
Replacing light bulbs..........................461
Wattage..................................................578 Outside rear view mirrors ................. 190
Adjusting and folding ........................190
BSM (Blind Spot Monitor) ........... 333
Linked mirror function
when reversing ...................................191
Mirror position memory .................. 178
Outside rear view mirror defoggers .......................................... 372
Outside temperature display ........... 105
Overheating ........................................... 556
Paddle shift switches ........................... 226
Parking assist sensors
*
Parking brake...........................................231 If the parking brake cannot
be released ....................................... 546
Operation ............................................... 231
Parking brake engaged warning buzzer............................... 482
Parking brake engaged warning message .......................... 482
PCS (Pre-Crash Safety system)............ 269
Function.................................................. 269
Warning light........................................ 477
Warning message ............................ 482
Personal lights........................................ 387
Pollen removal mode.......................... 372
Power control unit ...................................79
N
O
P

620
GS450h_300h_OM_OM30F00E_(EE)GAS STATION INFORMATION
Auxiliary catch leverTrunk openerFuel filler door
P. 4 1 7 P. 1 4 6 P. 2 5 8
Hood lock release leverTi r e i n f l a t i o n p r e s s u r e
P. 4 1 7
P. 5 7 5
Fuel tank capacity
(Reference) 66 L (17.4 gal., 14.5 Imp.gal.)
Fuel typeEU area: Unleaded gasoline conforming to European
standard EN228 only
Except EU area: Unleaded gasoline only
P. 5 6 9
Cold tire inflation
pressure P. 5 7 5
Engine oil capacity
(Drain and refill —
reference)P. 5 7 0
Engine oil type“Toyota Genuine Motor Oil” or equivalent
Oil grade:
0W-20, 5W-30 and 10W-30:
API grade SL “Energy-Conserving”, SM “Energy-Con-
serving” or SN “Resource-Conserving”; or ILSAC multi-
grade engine oil
15W-40:
API grade SL, SM or SN multigrade engine oil
P. 5 7 0