2010 Lexus IS250C rear

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4-1. Maintenance and care
4
Maintenance and care
10_IS250C/350C_U
■Bumpers
Do not scrub with abrasive cleaners.
■Outside rear view mirror rain-clearing coating (if equipped)
Observe the following precautions in order to retain the rain-clearing properties of
the mirror.
●Clean the mirrors using car shampoo or glass cleaner that does not contain sili-
cone or an abrasive compound, and rinse thoroughly with water.
●Allow the mirrors to be exposed to direct sunlight for 1 to 2 days.
■To prevent deterioration and do by corrosion
●Wash the vehicle immediately in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If you see coal tar or tree sap on the paint surface
• If you see dead insects, insect droppings or bird droppings on the paint
• After driving in an area contaminated with soot, oily smoke, mine dust, iron
powder or chemical substances
• If the vehicle becomes heavily soiled in dust or mud
• If liquids such as benzene and gasoline are spilled on the paint surface
●If the paint is chipped or scratched, have it repaired immediately.
CAUTION
■Caution about the exhaust pipe
Exhaust gasses cause the exhaust pipe to become quite hot.
When washing the vehicle, be careful not to touch the pipe until it has cooled suffi-
ciently, as touching a hot exhaust pipe can cause burns.

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4-1. Maintenance and care
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Maintenance and care
10_IS250C/350C_U
NOTICE
■Cleaning detergents
Do not use organic substances such as benzene or gasoline, acidic or alkaline solu-
tions, dye, bleach or other detergent. Doing so may discolor the vehicle interior or
cause streaks or damage to painted surfaces.
■Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of leather
surfaces.
●Remove any dust or dirt on leather surfaces immediately.
●Do not expose the vehicle to direct sunlight for extended periods of time. Park
the vehicle in the shade, especially during summer.
●Do not place items made of vinyl, plastic, or that contain wax on the upholstery, as
they may stick to the leather surface if the vehicle interior heats up significantly.
■Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if water comes into
contact with electrical components under the floor of the vehicle, and may also
cause the body to rust.
■Cleaning the inside of the windshield/rear window
●Be careful not to scratch or damage the heater wires or antenna.
●Do not use glass cleaner to clean the windshield/rear window, as this may cause
damage to the rear window defogger heater wires or wire antenna in the wind-
shield. Use a cloth dampened with lukewarm water to gently wipe the window
clean. Wipe the window in strokes running parallel to the heater wires or antenna.

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4-3. Do-it-yourself maintenance
10_IS250C/350C_U
Positioning a floor jack
When raising your vehicle with a floor jack, position the jack correctly.
Improper placement may damage your vehicle or cause injury.
■Front
■ Rear
Position the floor jack diagonally
in the direction of the arrow
marked on the underbody
cover.
Do not position the jack on a
straight angle as the exhaust
pipe may block the jack arm,
preventing the jack from being
positioned properly.

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4-3. Do-it-yourself maintenance
10_IS250C/350C_U
■Maximum load of tire
Check that the maximum load of the replacement tire is greater than 1 /2 of the
Gross Axle Weight Ratings (GAWR) of either the front axle or the rear axle, which-
ever is greater.
■Tire types
1 Summer tiresSummer tires are high-speed performance tires best suited to highway driving
under dry conditions. Since summer tires do not have the same traction perfor-
mance as snow tires, summer tires are inadequate for driving on snow-covered
or icy roads. For driving on snow-covered roads or icy roads, the use of snow tires
is recommended. When installing snow tires, be sure to replace all four tires.
2 All season tires All season tires are designed to provide better traction in snow and to be ade-
quate for driving in most winter conditions, as well as for use year round. All sea-
son tires, however, do not have adequate traction performance compared with
snow tires in heavy or loose snow. Also, al l season tires fall short in acceleration
and handling performance compared with summer tires in highway driving.
3Snow tires
For driving on snow-covered roads or icy roads, we recommend using snow tires.
If you need snow tires, select tires of the same size, construction and load capac-
ity as the originally installed tires. Since your vehicle has radial tires as original
equipment, make sure your snow tires also have radial construction. Do not install
studded tires without first checking local regulations for possible restriction.
Snow tires should be installed on all wheels. ( →P. 220)
■Initializing the tire pressure warning system
Initialize the tire pressure warning system with the tire inflation pressure adjusted to
the specified level. For the GAWR, see the Certification Label.
For the maximum load of the tire, see the load
limit at maximum cold tire inflation pressure
mentioned on the sidewall of the tire.
(
→P. 545)

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4-3. Do-it-yourself maintenance
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Maintenance and care
10_IS250C/350C_U
Fuse layout and amperage ratings■ Engine compartment (type A fuse box)
FuseAmpereCircuit
1TURN-HAZ15 AEmergency flashers, turn signals
2IG2 MAIN20 AIG2, IGN, GAUGE
3RAD NO.230 AAudio
4D/C CUT20 ADOME, MPX-B
5RAD NO.130 AAudio
6MPX-B10 A
Headlights, front fog lights, parking
lights, license plate lights, windshield
washer, power windows, power seats,
electric tilt and telescopic steering
column, meter, smart access system
with push-button start, outside rear
view mirrors, air conditioning system,
retractable hardtop, clock
7DOME10 AInterior lights, meter, outer foot lights
8CDS10 APo w e r s o u rc e

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4-3. Do-it-yourself maintenance
10_IS250C/350C_U■
Driver’s side instrument panel
FuseAmpereCircuit
1FR P/SEAT LH30 APo w e r s e a t
2A/C7. 5 AAir conditioning system
3MIR HTR15 AOutside rear view mirror defoggers
4TV NO.110 ADisplay
5FUEL OPN10 AFuel filler door opener
6TV NO.27. 5 A
7TA I L10 ATail lights, license plate lights, parking
lights, side marker lights
8PA N E L7. 5 A
Air conditioning system, display,
clock, cigarette lighter, power steer-
ing, headlight cleaner, retractable
hardtop, ECT, ETCS, seat heaters and
ventilators, trunk opener, outside rear
view mirrors, shift lever light, traction
control, audio, instrument panel light
control
9RR FOG7. 5 A

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4-3. Do-it-yourself maintenance
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Maintenance and care
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10ECU-IG LH10 A
Cruise control, air conditioning sys-
tem, power steering, rain sensor, anti-
glare inside rear view mirror, shift lock
system, tire inflation pressure warning
system, vehicle stability control
11FR S/HTR LH15 ASeat heaters and ventilators, air condi-
tioning system
12FR DOOR LH20 APower windows, outside rear view
mirrors
13SECURITY7. 5 ASmart access system with push-button
start
14H-LP LVL7. 5 AAFS
15LH-IG10 A
Charging system, headlight cleaner,
rear window defogger, electric cool-
ing fans, emergency flashers, turn sig-
nal lights, back-up lights, stop lights,
mirror heaters, seat belt pretensioner,
intuitive parking assist, cruise control,
PTC heater, exhaust system, smart
access system with push-button start
16FR WIP30 AWindshield wipers
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
10_IS250C/350C_U■
Passenger’s side instrument panel
FuseAmpereCircuit
1FR P/SEAT RH30 APo w e r s e a t
2DOOR DL15 A
3OBD7. 5 AOn-board diagnosis system
4STOP SW7. 5 A
Stop lights, multiport fuel injection sys-
tem/sequential multiport fuel injection
system, VDIM, shift lock system
5TI & TE20 AElectric tilt and telescopic steering
column
6RAD NO.310 AAudio
7GAUGE7. 5 AMeter
8IGN10 A
SRS airbag system, steering lock sys-
tem, multiport fuel injection system/
sequential multiport fuel injection sys-
tem, stop lights, smart access system
with push-button start, occupant
detection system
9ACC7. 5 A
Audio, clock, air conditioning system,
navigation system, outside rear view
mirrors, smart access system with
push-button start, glove box light,
console box light