2008 Lexus GS450h fuel cap

447
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_HV_U
December 27, 2007 1:38 pm
■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.

494
5-2. Steps to take in an emergency
GS_HV_U
December 12, 2007 3:50 pm
*3: Open door warning buzzer:
P. 5 0 5
*
4: 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 vehicle has reached a speed of at least 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.

544
GS_HV_U
December 12, 2007 3:50 pm
6-1. Specifications
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
*: Unladen vehicle
Overall length190.7 in. (4845 mm)
Overall width71.6 in. (1820 mm)
Overall height *56.1 in. (1425 mm)
Wheelbase112.2 in. (2850 mm)
Tr e a dFront60.4 in. (1535 mm)
Rear60.6 in. (1540 mm)
Vehicle capacity weight
(Occupants + luggage)815 lb. (370 kg)

546
6-1. Specifications
GS_HV_U
December 12, 2007 3:50 pm
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

563
6-1. Specifications
6
Vehicle specifications
GS_HV_U
December 12, 2007 3:50 pm
Tire related termMeaning
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
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1* below
Production options
weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter 
(Wheel diameter)Nominal diameter of the bead seat

587
Alphabetical index
GS_HV_U
December 12, 2007 3:50 pm
Front passenger occupant 
classification system .......................... 107
Front passenger’s seat belt 
reminder light ..................................... 493
Front seats Adjustment .............................................. 58
Driver’s seat position memory ...... 60
Front turn signal lights Wattage ................................................. 552
Fuel Capacity................................................. 546
Fuel gauge ..............................................148
Gas station information ................. 596
Information............................................ 553
Refueling ................................................... 83
Messages ..................................................511
Fuel door..................................................... 83
Fuel filler door........................................... 83
Fuses.......................................................... 456
Garage door opener........................... 377
Gas station information ..................... 596
Gauges.......................................................148
Glove box ............................................... 356
Hands-free system 
(for cellular phone).......................... 306
Head restraints..........................................64
Headlight aim .......................................... 471
Headlight cleaner .................................. 165 Headlights
Adaptive front lighting system...... 159
Discharge headlights 
precautions........................................ 479
Replacing light bulbs ........................ 474
Switch........................................................ 158
Wattage ..................................................552
Heaters Seat heaters ......................................... 369
Side mirror.............................................240
Hill-start assist control ....................... 200
Hood ............................................................417
Hooks Cargo ......................................................375
Shopping bag ......................................375
Hybrid system ........................................... 22 Emergency shut off system.............. 27
Energy monitor/consumption 
screen...................................................... 27
High voltage components ............... 26
Power meter.......................................... 148
Power (ignition) switch .................... 138
Identification Engine..................................................... 545
Electric motor ..................................... 545
Vehicle ................................................... 545
Ignition switch Power switch......................................... 138
Illuminated entry system .................... 352
I/M test....................................................... 413
Immobilizer system ................................ 88
Indicator lights......................................... 152
Initialization Items to initialize .................................575
Inside rear view mirror .......................... 74
G
H
I

596
GS_HV_U
December 12, 2007 3:50 pm
GAS STATION INFORMATION
Auxiliary catch lever
P. 4 1 7
Trunk opener
P. 5 5
Fuel filler door
P. 8 3
Hood lock release leverP. 4 1 7Fuel filler door openerP. 8 3Tire inflation pressureP. 5 5 1
Fuel tank capacity17.2 gal. (65 L, 14.3 lmp.gal.)
Fuel typePremium unleaded gasoline onlyP. 85, 546
Cold tire inflation 
pressure
Driving under normal conditions 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Driving at high speeds above 100 mph 
(160 km/h) (in countries where such speeds 
are permitted by law) Add 9 psi (60 kPa, 0.6 kgf/cm
2 or bar) to the
front tires and rear tires. Never exceed the 
maximum cold tire inflation pressure indicated
on the tire sidewall.P. 551
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 oilP. 547