
4877-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/300/200t_U (OM53D76U)
Tire valve
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 ev ery 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, ha ve it checked by your Lexus dealer.
Inspection and adjustment procedure
1
2
1
2
3
4
5
6

5198-2. Steps to take in an emergency
8
When trouble arises
IS350/300/200t_U (OM53D76U)
*1: Parking brake engaged warning buzzer:→ P. 526
*2: Open door warning buzzer:
→ P. 524
*3: Driver’s seat belt buzzer:
The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt is not
fastened. Once the engine switch is turned to IGNITION ON mode, the buzzer
sounds for 6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer
sounds once. If the seat belt is still unfast ened after 24 seconds, the buzzer will sound
intermittently for 6 seconds. Then, if the se at belt is still unfastened, the buzzer will
sound in a different tone for 90 more seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer soun ds to alert the front passenger that his or
her seat belt is not fastened. The buzzer so unds once if the vehicle reaches a speed of
12 mph (20 km/h). If the seat belt is still unfastened after 24 se conds, the buzzer will
sound intermittently for 6 seconds. Then, if the seat belt is still unfastened, the buzzer
will sound in a different to ne for 90 more seconds.
Rear passenger’s seat belt buzzer:
The rear passenger’s seat belt buzzer sounds to alert the rear passenger that his or
her seat belt is not fastened. The buzzer so unds once if the vehicle reaches a speed of
12 mph (20 km/h). If the seat belt is still unfastened after 24 se conds, the buzzer will
sound intermittently for 6 seconds. Then, if the seat belt is still unfastened, the buzzer
will sound in a different tone for 24 more seconds.
■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. 37)
■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.

574
IS350/300/200t_U (OM53D76U)9-1. Specifications
*1:Unladen vehicle
*2:Vehicles with 255/35R18 tires
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
Overall length184.3 in. (4680 mm)
Overall width71.3 in. (1810 mm)
Overall height*156.3 in. (1430 mm)
Wheelbase110.2 in. (2800 mm)
Tread*1
Front60.4 in. (1535 mm)
Rear61.0 in. (1550 mm)
60.6 in. (1540 mm)
*2
Vehicle capacity weight (Occupants + lug-
gage)825 lb. (375 kg)

5769-1. Specifications
IS350/300/200t_U (OM53D76U)
■Engine number
The engine number is stamped on the engine block as shown.
IS350/IS300IS200t
Engine
IS350/IS300IS200t
Model3.5 L 6-cylinder (2GR-FSE)
engine2.0 L 4-cylinder (8AR-FTS)
engine
Type 6-cylinder V type,
4-cycle, gasoline 4-cylinder in line,
4-cycle, gasoline
(with turbocharger)
Bore and stroke
3.70 ×
3.27 in.
(94.0 × 83.0 mm) 3.39
× 3.39 in.
(86.0 × 86.0 mm)
Displacement 210.9 cu. in. (3456 cm3) 121.9 cu. in. (1998 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.)

5979-1. Specifications
9
Vehicle specifications
IS350/300/200t_U (OM53D76U)
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
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 re place, 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

636Alphabetical index
IS350/300/200t_U (OM53D76U)
First-aid kit storage belt .......................419
Flat tire ...................................................... 546
Floor mats ................................................... 26
FluidAutomatic transmission ................. 582
Brake ....................................................... 583
Washer ...................................................475
Footwell light ............................................ 412 Wattage ................................................. 586
Front passenger occupant classification system ............................ 46
Front personal lights..............................413 Wattage ................................................. 586
Front seats ................................................ 130 Adjustment ............................................. 130
Cleaning ................................................ 450
Correct driving posture .................... 28
Driving position memory ................ 134
Head restraints ..................................... 139
Power easy access system ............ 134
Seat heaters ............................................. 411
Seat position memory....................... 134
Seat ventilators ....................................... 411
Front turn signal lights ......................... 184 Replacing light bulbs ....................... 499
Turn signal lever .................................. 184
Wattage ................................................. 586 Fuel............................................................. 203
Capacity................................................. 576
Fuel gauge ................................................79
Fuel pump shut off system ............. 515
Information............................................ 587
Refueling ................................................ 203
Type.......................................................... 576
Warning light ........................................ 518
Fuel consumption Average fuel economy ......................... 100, 101, 103
Current fuel consumption.................. 100, 101, 103
Fuel filler door........................................ 203 If the fuel filler door cannot be opened .........................205
Refueling ................................................ 203
Fuel gauge .................................................. 79
Fuel pump shut off system .................. 515
Fuses.......................................................... 495
Garage door opener...........................426
Gauges......................................................... 79
Gear positions.......................................... 181
Glove box ................................................. 416
Glove box light........................................ 416
F
G

641Alphabetical index
IS350/300/200t_U (OM53D76U)
Paddle shift switches ............................. 179
Parking assist sensors (intuitive parking assist) .................. 248
Parking brake.......................................... 186
Parking lights ........................................... 188 Light switch ............................................188
Replacing light bulbs ....................... 502
PCS (Pre-Collision System) .............. 214 Warning light ........................................ 517
Personal lights..........................................413 Wattage ................................................. 586
Pop-up display .......................................... 92
Power easy access system .................134
Power outlet ........................................... 422
Power steering (Electric power steering system)................................. 290 Warning light ........................................ 517
Power windows .......................................149 Door lock linked window operation ............................. 151
Jam protection function ................... 150
Operation ............................................... 149
Window lock switch.......................... 149
Pre-Collision System (PCS) .............. 214 Warning light ........................................ 517 Radar cruise control (dynamic
radar cruise control).........................236
Radiator...................................................... 471
Radio ..........................................................326
Rear passengers’ seat belt reminder lights .....................................518
Rear personal lights .............................. 413 Wattage ................................................ 586
Rear seats .................................................. 132 Fold down the seatback................... 132
Luggage security system.................. 118
Rear sunshade........................................423 Operation.............................................. 423
Reverse operation feature ............ 423
Rear turn signal lights ........................... 184 Replacing light bulbs ...................... 500
Turn signal lever ...................................184
Wattage ................................................ 586
Rear view mirror Inside rear view mirror...................... 144
Outside rear view mirrors ..............146
Rear window defoggers .................... 406
Refueling.................................................. 203 Capacity................................................. 576
Fuel types............................................... 576
If the fuel filler door cannot be opened .........................205
Opening the fuel tank cap ............205
PR

647Alphabetical index
IS350/300/200t_U (OM53D76U)
Warning buzzersDownshifting ........................................... 181
Driver’s and front passenger’s seat belt reminder ........................... 518
Key reminder .......................................543
Open door ............................................. 518
Open hood ...........................................524
Open moon roof ...............................534
Open trunk .......................................... 525
Open window .....................................534
Rear passengers’ seat belt reminder .............................................. 518
Warning lights .......................................... 75 ABS............................................................ 516
AFS............................................................. 518
Brake system......................................... 516
Charging system................................. 516
Driver’s and front passenger’s seat belt reminder light ................. 518
Electric power steering.................... 517
Low fuel level ........................................ 518
Malfunction indicator lamp ............ 516
Master warning light.......................... 518
Open door ............................................. 518
Pre-collision system........................... 517
Rear passengers’ seat belt reminder lights .................................. 518
Slip indicator .......................................... 518
SRS ............................................................. 516
Tire pressure ......................................... 518
Warning messages .............................. 522 Washer ....................................................... 196
Checking ............................................... 475
Preparing and checking before winter .................................... 294
Switch ........................................................196
Washing and waxing ...........................446
Weight Cargo capacity.....................................169
Load limits ...............................................169
Weight .................................................... 574
Wheels ..................................................... 489 Replacing wheels ..............................489
Size ...........................................................584
Window lock switch.............................. 149
Windows.................................................... 149 Power windows....................................149
Rear window defogger ..................406
Windshield wiper de-icer ................. 406
Windshield wipers ................................. 196 Intermittent windshield wipers with interval adjuster .......196
Rain-sensing windshield wipers.................................................... 198
Winter driving tips ................................294
Wireless remote control .....................106 Battery-Saving Function .................. 123
Locking/Unlocking ....................... 111, 117
Replacing the battery ...................... 493
WMA disc............................................... 332
XM
® Satellite Radio ............................326
W
X