2007 Lexus GS450h fuel cap

395
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel efficiency
●Reduced driving comfort and tire life
●Reduced safety
●Damage to the drive train
If a tire needs frequent refilling, have it checked by your Lexus dealer.
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
●Check only when the tires are cold. 
If your vehicle has been parked for at least 3 hours and has not been driven for
more than 1 mile or 1.5 km, you will get an accurate cold tire inflation pressure
reading.
●Always use a tire pressure gauge. 
The appearance of the tire can be misleadi ng. In addition, tire inflation pressures
that are even just a few pounds off can degrade ride and handling.
●Do not bleed or reduce tire inflation pressure after driving. It is normal for the
tire inflation pressure to be higher after driving.
●Never exceed the vehicle capacity weight. 
Passengers and luggage weight should be placed so that the vehicle is bal-
anced.

5
When trouble arises
441
5-2. Steps to take in an emergency
*2: Open door warning buzzer:
P. 4 4 9
*3: Driver's and front passenger’s seat belt reminder buzzer:
The driver’s and front passenger’s seat belts reminder sounds to alert the driver
and front passenger that his or her seat belt is not fastened. The buzzer sounds
intermittently for 10 seconds after the ve hicle has reached a speed of at lest 12
mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will sound in
a different tone for 20 more seconds.
Warning lightWarning light/DetailsCorrection procedure
Master warning light
A buzzer sounds and the
warning light comes on and
flashes to indicate that the
master warning system has
detected a malfunction.
Take appropriate action in
accordance with the message
displayed on the multi-infor-
mation display.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is your vehicle low on gas? 
If it is, refuel the vehicle immediately.
●Is the fuel tank cap loose? 
If it is, tighten it securely.
The light will go off after taking several driving trips. 
If the light does not go off even after several trips, contact your Lexus dealer as soon
as possible.
■Front passenger detection sensor and passenger seat belt reminder
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash, even if a passenger is not sitting in
the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.

488
6-1. Specifications
Engine
Fuel
Electric motor (Traction motor)
Hybrid battery (Traction battery)
Model2GR-FSE
Ty p e6-cylinder V type, 4-cycle, gasoline
Bore and stroke3.70  3.27 in. (94.0  83.0 mm)
Displacement210.9 cu.in. (3456 cm3)
Drive belt tensionAutomatic adjustment
Fuel typePremium unleaded gasoline only
Octane Rating91 (Research Octane Number 96) or higher
Fuel tank capacity17.2 gal. (65 L, 14.3 lmp.gal.)
Ty p ePermanent magnet synchronous motor
Maximum output147 kW
Maximum torque275 N•m (28.0 kgf•m, 202.8 ft•lbf.)
Ty p eNickel-Metal hydride battery
Vo l t a g e7.2 V/module
Capacity6.5 Ah (3HR)
Quantity40 modules
Overall voltage288 V

489
6-1. Specifications
6
Vehicle specifications
Lubrication system
*: 5W-30 is an oil that provides optimal levels of fuel efficiency.
Oil viscosity:
● The 5W portion of the oil viscosity rating indicates the characteristic of
the oil which allows cold startability . Oils with a lower value before the W
allow for easier starting of the engine in cold weather.
● The 30 in 5W-30 indicates the oil viscosity when the oil is as its operating
temperature. An oil with a higher viscosity may be better suited if the
vehicle is operated at high speeds, or under extreme load condition.
Oil capacity 
(drain and refill)
with filter
without filter6.6 qt. (6.3 L, 5.5 lmp.qt.)
6.2 qt. (5.9 L, 5.2 lmp.qt.)
Oil gradeILSAC multigrade engine oil
Recommended oil
viscosity
Use Lexus approved “Toyota Genuine Motor Oil” or
equivalent to satisfy the above grade and viscosity.
Outside temperature

503
6-1. Specifications
6
Vehicle specifications
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excess ive loading, either separately or in
combination, can cause heat build up and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of transmission, power
steering, power brakes, power windows, power seats,
radio and heater, to the extent that these items are
available as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine
Maximum loaded vehicle
weight
The sum of: 
(a) Curb weight 
(b) Accessory weight 
(c) Vehicle capacity weight 
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows

520
Alphabetical index
Emergency, in case ofIf a warning light turns on ..............438
If a warning message is 
displayed ............................................ 444
If the hybrid system will not 
start.......................................................... 471
If the shift lever cannot be  shifted from P ....................................472
If the 12 volt battery is 
discharged ....................................... 476
If you have a flat tire .............. 460, 461
If you lose your keys......................... 473
If you think something is 
wrong ................................................... 435
If your vehicle becomes stuck.....483
If your vehicle needs to be 
towed ................................................... 428
If your vehicle overheats ............... 480
When the electronic key battery 
is discharged .................................... 474
Energy monitor............................................ 6
Engine Compartment .....................................369
Hood........................................................366
How to start the hybrid system ... 103
If the hybrid system will not 
start.......................................................... 471
Overheating........................................ 480
Power switch ........................................ 103
Engine compartment cover .............370
Engine coolant temperature 
gauge......................................................... 112
Engine/inverter coolant Capacity .................................................490
Checking ............................................... 376
Preparing and checking before winter ...................................... 176 Engine oil
Capacity ................................................ 489
Checking................................................. 371
Preparing and checking 
before winter...................................... 176
Engine oil maintenance data ........... 374
EPS (Electric Power Steering) .........164
Event data recorder ............................ 436
First-aid kit storage belt ..................... 327
Floor mats ................................................ 326
Fluid Brake ....................................................... 378
Washer................................................... 382
Fog lights Switch ........................................................ 125
Wattage ................................................. 494
Foot light .................................................. 304
Front passenger occupant 
classification system ............................. 77
Front passenger's seat belt 
reminder light ..................................... 440
Front seats Adjustment ...............................................33
Driving position memory ..................35
Front turn signal lights Wattage ................................................. 494
Fuel Capacity ................................................ 488
Fuel gauge ................................................ 112
Gas station information ................. 528
Information ........................................... 495
Refueling ................................................... 55
Messages .............................................. 456
Fuel filler door ........................................... 55
Fuses .......................................................... 403
F

525
Alphabetical index
ECB/VSC (Electronically 
Controlled Brake System/ 
Vehicle Stability Control) .......... 439
Electric power steering  warning light ..................................... 439
Low fuel level....................................... 440
Malfunction indicator lamp .......... 439
Master warning light .......................... 441
Open door ........................................... 440
Pre-collision system ......................... 439
Seat belt reminder light .................. 440
SRS airbags .......................................... 439
Tire pressure warning light........... 440
Warning messages Anti-lock Brake System (ABS) .. 448
Brake Assist (BA) ............................. 448
Dynamic radar cruise control ................................... 446
Engine oil level ...................................... 451
Engine oil maintenance.................... 451
Engine oil pressure........................... 444
Headlight ............................................... 445
Hill-start assist control..................... 448
Hood ....................................................... 449
Hybrid system ......................... 444, 453
Intuitive parking 
assist .............................446, 452, 456
Moon roof ............................................. 450
Open door ........................................... 449
Parking brake ...................................... 450
Pre-Collision System .......... 446, 452
Refueling ................................................ 456
Rear lights system ............................. 445
Smart access system with 
push-button start............................ 457
Steering lock ............................445, 459 Tire pressure warning

system ..................................... 445, 452
TRAC (Traction control 
system)................................................ 448
Trunk ....................................................... 450
VGRS (Variable Gear Ratio 
Steering) ............................................ 448
VSC/ECB (Vehicle Stability 
Control/Electronically Controlled 
Brake system) ................................. 448
Washer fluid ........................................ 450
Washer Checking ...............................................382
Preparing and checking 
before winter ......................................176
Switch.........................................................126
Washing and waxing ........................... 352
Weight Cargo capacity ..................................... 172
Load limits ...............................................175
Weight.................................................... 486
Wheels ...................................................... 397
Window glasses ......................................50
Window lock switch ...............................50
Windows Power windows .................................... 50
Rear window defogger.................... 199
Washer .....................................................126
Windshield wipers Position..................................................... 178
Windshield wipers ..............................126
Winter driving tips ..................................176
Wireless remote control Locking/Unlocking ............................. 22
Replacing the battery........................ 401
WMA disc ............................................... 224

528
GAS STATION INFORMATION
Auxiliary catch leverP. 3 6 6Trunk openerP. 2 9Fuel filler door P. 5 5
Hood lock release lever P. 3 6 6Fuel filler door openerP. 5 5Tire inflation pressureP. 4 9 3
Fuel tank capacity17.2 gal. (65 L, 14.3 lmp.gal.)
Fuel typePremium unleaded gasoline only P. 56, 488
Cold tire inflation 
pressureP. 4 9 3
Engine oil capacity
(Drain and refill)qt. (L, Imp.qt.)
With filter 6.6 (6.3, 5.5)
Without filter 6.2 (5.9
, 5.2)
Engine oil type
“Toyota Genuine Motor Oil” or equivalent
Oil grade: ILSAC multigrade engine oil P. 489
Recommended oil viscosity: SAE 5W-30