2015 Lexus IS250 fuel cap

4337-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53C50U)
Ti r e v a l v e
Tire pressure gauge
Remove the tire valve cap.
Press the tip of the tire pressure gauge onto the tire valve.
Read the pressure using the gauge gradations.
If the tire inflation pressure is not at the recommended level, adjust the pres-
sure.
If you add too much air, press the center of the valve to deflate.
After completing the tire inflation pressure measurement and adjustment,
apply soapy water to the valve and check for leakage.
Put the tire valve cap back on.
■Tire inflation pressure check interval
You should check tire inflation pressure every two weeks, or at least once a month.
Do not forget to check the spare.
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel economy
●Reduced driving comfort and poor handling
●Reduced tire life due to wear
●Reduced safety
●Damage to the drivetrain
If a tire needs frequent inflating, have it checked by your Lexus dealer.
Inspection and adjustment procedure
1
2
1
2
3
4
5
6

4698-2. Steps to take in an emergency
8
When trouble arises
IS350/250_U (OM53C50U)
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (front door), side impact sensors (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 pret ensioner assemblies, airbags,
interconnecting wiring and power sources. ( →P. 3 8 )
■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 fuel 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 several trips, contact your Lexus dealer as soon as
possible.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient of the voltage temporarily drops, the
electric power steering system warning light 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. Pushing the tire
pressure warning reset switch 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 caused 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 the 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 warning system may not function properly
→ P. 4 2 8
■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 mode, have it checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.

512
IS350/250_U (OM53C50U)9-1. Spec
ifications
*1:Unladen vehicle
*2: Vehicles with 255/35R18 tires
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
Overall length183.7 in. (4665 mm)
Overall width71.3 in. (1810 mm)
Overall height*156.3 in. (1430 mm)
Wheelbase110.2 in. (2800 mm)
Tr e a d*1Front60.4 in. (1535 mm)
Rear61.0 in. (1550 mm)
60.6 in. (1540 mm)*2
Vehicle capacity weight (Occupants + lug-
gage)825 lb. (375 kg)

5149-1. Specifications
IS350/250_U (OM53C50U)
■Oil capacity (Drain and refill [Reference*])
*: 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.
Engine
IS250IS350
Model2.5 L 6-cylinder (4GR-FSE)
engine3.5 L 6-cylinder (2GR-FSE)
engine
Ty p e6-cylinder V type, 4-cycle, gasoline
Bore and stroke3.27 × 3.03 in.
(83.0 × 77.0 mm)3.70 × 3.27 in.
(94.0 × 83.0 mm)
Displacement152.5 cu. in. (2500 cm3)210.9 cu. in. (3456 cm3)
Valve clearance
(engine cold)Automatic adjustment
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.)
Lubrication system
2WDAW D
With f ilt er6.6 qt. (6.2 L, 5.5 Imp. qt.)6.8 qt. (6.4 L, 5.6 Imp. qt.)
Without filter6.2 qt. (5.9 L, 5.2 Imp. qt.)6.3 qt. (6.0 L, 5.3 Imp. qt.)

5329-1. Specifications
IS350/250_U (OM53C50U)
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressureTire 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 manu-
facturer
Accessory weight
The combined weight (in excess 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 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 specified
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 in stalled regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously con-
sidered 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

571Alphabetical index
IS350/250_U (OM53C50U)
Front turn signal lights ..........................170Replacing light bulbs ........... 446, 448
Turn signal lever .................................. 170
Wattage ................................................... 521
Fuel .............................................................. 188 Capacity .................................................. 514
Fuel gauge................................................. 81
Fuel pump shut off system............ 465
Information ............................................ 522
Refueling.................................................. 188
Type ................................................ 188, 514
Warning light ....................................... 467
Fuel consumption Average fuel economy ...................... 87
Current fuel consumption ................ 87
Fuel filler door ......................................... 188
If the fuel filler door cannot be opened .......................... 190
Refueling.................................................. 188
Fuel gauge ....................................................81
Fuel pump shut off system................. 465
Fuses ............................................................441
Garage door opener .......................... 382
Gauges ..........................................................81
Gear positions ........................................ 168
Glove box .................................................. 371
Glove box light ........................................ 371 Hands-free system
(for cellular phone)............................. 319
HD Radio
® system .............................. 289
Head restraints........................................ 128
Headlights ................................................. 173 Discharge headlights precautions ....................................... 453
Light switch............................................. 173
Replacing light bulbs ....................... 452
Wattage ...................................................521
Headlights cleaner ................................ 182
Heaters Air conditioning system .................358
Heated steering wheel ................... 366
Outside rear view mirrors ............ 362
Seat heaters .......................................... 367
Hill-start assist control ....................... 240
Hood .............................................................411 Open ...........................................................411
Hooks Cargo hooks ....................................... 374
Coat hooks ............................................ 381
Retaining hooks (floor mat)............. 26
Horn............................................................. 132
G
H

576Alphabetical index
IS350/250_U (OM53C50U)
Radar cruise control (dynamic radar cruise control) ..........................196
Radiator ..................................................... 418
Radio.......................................................... 289
Rear personal lights............................. 369
Wattage ................................................... 521
Rear seats ................................................... 121
Fold down the seatback .................... 121
Luggage security system .................. 110
Rear sunshade ....................................... 379 Operation ..............................................379
Reverse operation feature.............379
Rear turn signal lights ...........................170
Replacing light bulbs ........................449
Turn signal lever .................................. 170
Wattage ................................................... 521
Rear view mirror
Inside rear view mirror ..................... 133
Outside rear view mirrors .............. 135 Rear window defoggers .....................362
Refueling................................................... 188
Capacity ...................................................514
Fuel types.................................................514
If the fuel filler door cannot be opened .......................... 190
Opening the fuel tank cap ............. 190
Remote Touch
*
Replacing Electronic key battery ..................... 439
Fuses .......................................................... 441
Light bulbs............................................. 444
Tires ..........................................................486
Reporting safety defects
for U.S. owners .................................. 548
Reset the maintenance data ............ 403
Rev indicator ............................................. 88
Rev peak ..................................................... 88
R

584
IS350/250_U (OM53C50U)GAS STATION INFORMATION
Auxiliary catch leverTrunk openerFuel filler door
P. 411 P. 109 P. 190
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 1
P. 5 1 9
Fuel tank capacity
(Reference) 17.5 gal. (66.3 L, 14.6 Imp. gal.)
Fuel type
Unleaded gasoline only P. 188, 514
Cold tire inflation
pressure P. 5 1 9
Engine oil capacity
(Drain and refill —
reference)qt. (L, Imp. qt.)
2WD AWD
With filter 6.6 (6.2, 5.5) 6.8 (6.4, 5.6)
Without filter 6.2 (5.9, 5.2) 6.3 (6.0, 5.3)
Engine oil type “Toyota Genuine Motor Oil” or equivalent
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
P. 5 1 4