Page 433 of 578
432
4-3. Do-it-yourself maintenance
IS350/250_U
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance sched-
ule. In dusty areas or areas with heavy traffic flow, early replacement may be
required. (For scheduled maintenance information, please refer to the “Owner's
Manual Supplement/Scheduled Maintenance”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
■Cleaning method
If the filter is dirty, clean by blow-
ing compressed air through the
filter from the downward side.
Hold the air gun 2 in. (5 cm)
from the filter and blow for
approximately 2 minutes at
72 psi (500 kPa, 5.0 kgf/cm
2
or bar).
If it is not available, have the
filter cleaned by your Lexus
dealer.
■ Replacement method
Remove the air conditioning fil-
ter from the filter case and
replace it with a new one.
The “↑UP” marks shown on the
filter and the filter case should
be pointing up.
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543
6-1. Specifications
6
Vehicle specifications
IS350/250_U
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
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
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
Vehicle capacity weight
(Total load capacity)The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle's designated seating capacity
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer.
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
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer's designation for a rim by
style or code
Tire related termMeaning
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569
Alphabetical index
IS350/250_U
Light bulbsReplacing............................................... 452
Wattage ................................................. 533
Lights
Door courtesy lights ........................ 329
Emergency flasher switch ............. 460
Fog light switch.....................................168
Hazard light switch...........................460
Headlights switch ................................165
Interior light switch.............................. 331
Outer foot lights................................. 329
Overhead courtesy light ............... 329
Personal light switch .......................... 331
Replacing light bulbs ....................... 452
Scuff lights ............................................. 329
Shift lever light ..................................... 329
Turn signal lever................................... 147
Vanity lights .......................................... 340
Wattage ................................................. 533
Load capacity ........................................ 209
Maintenance
Do-it-yourself maintenance ......... 394
General maintenance .....................390
Maintenance data .............................. 518
Maintenance requirements ..........388
Manual transmission............................. 145
Meter Instrument panel light control ....... 152
Meters .........................................................151
Micro dust and pollen filter ...............224 Mirrors
Inside rear view mirror ....................... 72
Side mirror heater .............................228
Side mirrors ............................................. 73
Vanity mirrors ..................................... 340
Moon roof................................................... 79
MP3 disc ..................................................248
Multi-information display ................... 160
Noise from under vehicle...................... 19
Odometer...................................................151
Oil Engine oil............................................... 403
Opener Fuel filler door .........................................83
Hood ........................................................397
Trunk ........................................................... 47
Outer foot lights Outer foot lights .................................329
Wattage ................................................. 533
Outside rear view mirrors
Adjusting and folding.......................... 73
Mirror position memory ....................53
Outside temperature display ............. 161
Overhead console ...............................335
Overhead courtesy lights Overhead courtesy lights ..............329
Wattage ................................................. 533
Overheating, Engine............................ 512L
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