fuel cap Lexus GS350 2018 User Guide

4387-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (front door), side impact se nsors (front), side impact sensors (rear),
driver’s seat position sensor, driver’s seat belt buckle switch, front passenger occupant
classification system, “AIR BAG ON” indicat or light, “AIR BAG OFF” indicator light,
front passenger’s seat belt buckle switch, seat belt pretensioner assemblies, airbags,
interconnecting wiring and power sources. (→P. 43)
■Front passenger detection sensor, seat belt reminder and warning buzzer
If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a passenger
is not sitting in the seat.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fu el tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficien t or the voltage temporarily drops, the
electric power steering system warning li ght may come on and the warning buzzer may
sound.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Initializing the tire
pressure warning system will not turn off the tire pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caus ed by temperature. In this case, adjusting
the tire inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with a tire pressure warning valve and transmit-
ter. If a tire goes flat, the tire pressure warning light will not turn off even though the flat
tire has been replaced with the spare tire.
■Conditions that the tire pressure wa rning system may not function properly
→ P. 398
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mo de, have it checked by your Lexus dealer.

518
GS350_300_GS F_OM_OM30G34U_(U)8-1. Specifications
Maintenance data (fuel, oil level, etc.)
GS350/GS300
*1:Unladen vehicle
*2: Vehicles with 265/35R19 tires
GS F
*:Unladen vehicle
Dimensions and weight
Overall length190.9 in. (4850 mm)
Overall width72.4 in. (1840 mm)
Overall height*12WD57.3 in. (1455 mm)
AWD57.9 in. (1470 mm)
Wheelbase112.2 in. (2850 mm)
Tread*1
Front62.0 in. (1575 mm)
Rear62.6 in. (1590 mm)
61.4 in. (1560 mm)
*2
Vehicle capacity weight
(Occupants + luggage)825 lb. (370 kg)
Overall length193.5 in. (4915 mm)
Overall width72.6 in. (1845 mm)
Overall height*56.7 in. (1440 mm)
Wheelbase112.2 in. (2850 mm)
Tread*Front61.2 in. (1555 mm)
Rear61.4 in. (1560 mm)
Vehicle capacity weight
(Occupants + luggage)865 lb. (390 kg)

GS350_300_GS F_OM_OM30G34U_(U)
5218-1. Specifications
8
Vehicle specifications
GS350
GS300
GS F
Engine
Model3.5 L 6-cylinder (2GR-FKS)
Type6-cylinder V type, 4-cycle, gasoline
Bore and stroke3.70 × 3.27 in. (94.0 × 83.0 mm)
Displacement210.9 cu.in. (3456 cm3)
Valve clearanceAutomatic adjustmentDrive belt tension
Model2.0 L 4-cylinder with turbocharger (8AR-FTS)
Type4-cylinder in line, 4-cycle, gasoline
Bore and stroke3.39 × 3.39 in. (86.0 × 86.0 mm)
Displacement121.9 cu. in. (1998 cm3)
Valve clearanceAutomatic adjustmentDrive belt tension
Model5.0 L 8-cylinder (2UR-GSE)
Type8-cylinder V type, 4-cycle, gasoline
Bore and stroke3.70 × 3.52 in. (94.0 × 89.5 mm)
Displacement303.2 cu. in. (4969 cm3)
Valve clearance
(engine cold)Intake: 0.006 in. (0.15 mm)
Exhaust: 0.009 in. (0.22 mm)
Drive belt tensionAutomatic adjustment
Fuel
Fuel typeUnleaded gasoline only
Octane Rating91 (Research Octane Number 96) or higher
Fuel tank capacity (Reference)17.5 gal. (66.3 L, 14.6 Imp.gal.)

GS350_300_GS F_OM_OM30G34U_(U)
5238-1. Specifications
8
Vehicle specifications
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good start-
ing in cold weather.
If SAE 0W-20 is not available, SAE
5W-20 oil may be used. However, it
must be replaced with SAE 0W-20
at the next oil change.
Oil viscosity (0W-20 is explained here as an example):• The 0W in 0W-20 indicates the characteristic of the oil which allows cold startability. Oils with a lower value be fore the W allow for easier starting of
the engine in cold weather.
• The 20 in 0W-20 indicates the viscos ity characteristic of the oil when the
oil is at high temperature. An oil with a higher viscosity (one with a higher
value) may be better suited if the vehicle is operated at high speeds, or
under extreme lo ad conditions.
How to read oil container label:
The International Lubricant Specifi-
cation Advisory Committee
(ILSAC) Certification Mark is added
to some oil containers to help you
select the oil you should use.
GS F
*: The engine oil capacity is a reference quantity to be used when changing the engine oil. Warm up and turn off the engine, wait more than 5 minutes, and check the oil level
on the dipstick.
Outside temperature
Oil capacity
(Drain and refill — reference*)
With filter
Without filter9.3 qt. (8.8 L, 7.7 Imp.qt.)
8.3 qt. (7.9 L, 7.0 Imp.qt.)

540
GS350_300_GS F_OM_OM30G34U_(U)8-1. Specifications
■Temperature A, B, C
The temperature grades are A (the highes
t), B, and C, representing the tire’s
resistance to the generation of heat and its ability to dissipate heat when
tested under controlled conditions on a specified indoor laboratory test
wheel.
Sustained high temperature can cause the ma terial of the tire to degenerate and
reduce tire life, and excessive temperature can lead to sudden tire failure.
Grade C corresponds to a level of perfor mance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory test
wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is properly inflated and
not overloaded.
Excessive speed, underi nflation, or excessive loading, either separately or in com-
bination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire 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 un der that condition
Maximum inflation pres-
sureThe maximum cold inflated pr essure to which a tire may
be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a manu-
facturer
Accessory weight
The combined weight (in exce ss of those standard items
which may be replaced) of automatic 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 equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air co nditioning 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 numb er of occupants specified
in the second column of Table 1
* that follows

585Alphabetical index
GS350_300_GS F_OM_OM30G34U_(U)
Engine oil maintenance data ........... 366
Engine switch ........................................... 197Auto power off function................... 199
Changing the engine switch modes ................................................... 198
If your vehicle has to be stopped in an emergency ..........425
Starting the engine ..............................197
EPS (Electric Power Steering) ....... 289 Function ................................................. 289
Warning light .......................................435
Warning message .............................. 441
Event data recorder (EDR) ...................10
Expert mode ........................................... 292
First-aid kit storage net ...................... 335
Flat tire Vehicles with spare tire .................. 472
Vehicles without spare tire .......... 483
Floor mats ................................................... 32
Fluid Automatic transmission ..................526
Brake ........................................................ 527
Washer ...................................................392
Footwell light .......................................... 327
Front passenger occupant classification system ............................ 52
Front personal lights............................ 328 Front seats .................................................158
Adjustment............................................. 158
Cleaning................................................. 362
Correct driving posture .................... 34
Driving position memory................ 160
Head restraints .....................................165
Power easy access system ............ 160
Seat heaters .......................................... 323
Seat position memory ...................... 160
Seat ventilators.................................... 323
Front side marker lights....................... 216 Light switch............................................. 216
Replacing light bulbs ....................... 420
Welcome light illumination control................................................... 138
Front turn signal lights .......................... 210 Replacing light bulbs ............ 419, 420
Turn signal lever ...................................210
Wattage ...................................................531
Fuel Capacity................................................... 521
Fuel gauge ...................................... 87, 94
Fuel pump shut off system ............ 433
Information............................................ 532
Type............................................................ 521
Warning light ....................................... 436
Warning messages ............................ 441
Fuel consumption Average fuel consumption............................ 102, 109
Average fuel consumption after refueling .......................... 102, 109
Current fuel consumption.... 102, 109
F

591Alphabetical index
GS350_300_GS F_OM_OM30G34U_(U)
Radar cruise control (dynamic radar cruise control with
full-speed range) ............................... 258
Radiator ....................................................388
Radio
*
RBDS (Radio Broadcast Data Systems)
*
Rear air conditioning system .............319
Rear door sunshades ............................341
Rear personal lights............................. 328
Rear side marker lights ........................216 Light switch ............................................ 216
Replacing light bulbs ........................420
Welcome light illumination control ......................... 138
Rear seat heaters.................................. 323
Rear sunshade .........................................341 Operation ............................................... 341
Reverse operation feature............. 342 Rear turn signal lights ........................... 210
Replacing light bulbs ....................... 420
Turn signal lever ...................................210
Rear view mirror Inside rear view mirror......................169
Outside rear view mirrors ................ 171
Rear view monitor system
*
Rear window defoggers ...................... 314
Refueling.................................................. 228 Capacity................................................... 521
Fuel types................................................. 521
Opening the fuel tank cap ............ 229
When the fuel filler door cannot be opened ......................... 230
Remote Touch
*.................................... 302
Replacing Electronic key battery .......................410
Fuses .......................................................... 412
Light bulbs...............................................418
Tires ...........................................................472
Rev indicator .....................................88, 95
Rev peak ............................................. 88, 96
Reporting safety defects for U.S. owners .................................. 562
Resetting the message indicating maintenance is required ................ 366
R
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

597Alphabetical index
GS350_300_GS F_OM_OM30G34U_(U)
Warning buzzersApproach warning ............................265
Brake system........................................434
Downshifting ........................................207
Intuitive parking assist
*
Key reminder ...................................... 469
Open door ............................................443
Open moon roof .............................. 456
Open hood ...........................................443
Open trunk ...........................................443
Open window .................................... 456
Seat belt reminder .............................436
Warning lights .......................................... 80 ABS...........................................................434
AFS OFF indicator ............................435
Brake system............................434, 436
Charging system................................434
Electric power steering...................435
Low fuel level .......................................436
Malfunction indicator lamp ...........434
Master warning light.........................436
Open door ............................................436
Parking brake indicator ..................436
Pre-collision system..........................435
Seat belt reminder light...................436
Slip indicator .........................................435
SRS ............................................................434
Tire pressure ........................................436 Warning messages................................ 441
Warning reflector storage belt .......337
Washer ......................................................223
Checking ............................................... 392
Low washer fluid warning message............................. 441
Preparing and checking before winter .................................... 296
Switch ...................................................... 223
Washing and waxing .......................... 358
Weight Cargo capacity.....................................194
Load limits ...............................................194
Weight ..................................................... 518
Welcome light illumination control .....................................................138
Wheels Replacing ...............................................406
Size ...........................................................528
Window glasses...................................... 175
Window lock switch.............................. 175
Windows.................................................... 175 Power windows.................................... 175
Rear window defogger .................... 314
Washer ................................................... 223
Windshield wiper de-icer ................... 314
Windshield wipers ................................223 Position ................................................... 299
Rain-sensing windshield wipers................................................... 223
W
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

600
GS350_300_GS F_OM_OM30G34U_(U)GAS STATION INFORMATION
Auxiliary catch leverTrunk openerFuel filler door
P. 373 P. 143 P. 229
Hood lock release leverTire inflation pressure
P. 373
P. 528
Fuel tank capacity
(Reference) 17.5 gal. (66.3 L, 14.6 Imp.gal.)
Fuel type
Unleaded gasoline only P. 521
Cold tire inflation
pressure P. 528
Engine oil capacity
(Drain and refill —
reference) P. 522
Engine oil type
P. 522