fuses Lexus IS250C 2010 Owner's Manual

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10_IS250C/350C_U
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3-6. Using the storage featuresList of storage features.............. 340
• Glove box ................................... 340
• Console box ................................. 341
• Cup holders................................. 343
3-7. Other interior features Sun visors......................................... 346
Vanity mirror .................................. 347
Clock ................................................ 348
Satellite switches .......................... 349
Ashtrays ........................................... 352
Cigarette lighter .......................... 353
Power outlet ................................... 354
Seat heaters and ventilators .................................... 355
Floor mat......................................... 358
Trunk features................................ 359
Garage door opener.................. 362
Compass......................................... 368 4-1. Maintenance and care
Cleaning and protecting the vehicle exterior................... 374
Cleaning and protecting the vehicle interior .................... 377
4-2. Maintenance Maintenance requirements .... 380
General maintenance ................ 382
Emission inspection and maintenance (I/M)
programs ..................................... 385
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................. 386
Hood ................................................ 389
Positioning a floor jack.............. 390
Engine compartment.................. 392
Tires ................................................... 406
Tire inflation pressure.................. 416
Wheels ............................................. 420
Air conditioning filter.................. 422
Electronic key battery ................ 425
Checking and replacing fuses ................................................ 427
Headlight aim ................................ 442
Light bulbs....................................... 444
4Maintenance and care

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3-4. Using the hands-free phone system (for mobile phones)
10_IS250C/350C_U
■Steering wheel switches
Vo l u m e
During an incoming call:
Adjusts the ring tone volume
During an ongoing call:
Adjusts the receiver volume
The voice guidance volume can-
not be adjusted using this but-
ton.
Off-hook switch
Turns the hands-free system
on/starts a call
On-hook switch
Turns the hands-free system
off/ends a call/refuses a call
Talk switch
Turns the voice command
system on (press)/turns the
voice command system off
(press and hold)
■ Microphone

Maintenance and care4
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10_IS250C/350C_U
4-1. Maintenance and careCleaning and protecting the vehicle exterior............. 374
Cleaning and protecting the vehicle interior .............. 377
4-2. Maintenance Maintenance requirements ....................... 380
General maintenance ......... 382
Emission inspection and maintenance (I/M)
programs............................... 385 4-3. Do-it-yourself
maintenance
Do-it-yourself service precautions ........................... 386
Hood .......................................... 389
Positioning a floor jack ......... 390
Engine compartment ........... 392
Tires............................................ 406
Tire inflation pressure............ 416
Wheels ...................................... 420
Air conditioning filter ........... 422
Electronic key battery.......... 425
Checking and replacing fuses ...................... 427
Headlight aim ......................... 442
Light bulbs................................ 444

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4-3. Do-it-yourself maintenance
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Maintenance and care
10_IS250C/350C_U
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury,
observe the following precautions.
■When working on the engine compartment
●Keep hands, clothing, and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper or rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.
ItemsParts and tools
Engine oil level (→P. 3 9 5 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (→ P. 4 2 7 )• Fuse with same amperage rating as
original
Tire inflation pressure ( →P. 4 1 6 )• Tire pressure gauge
• Compressed air source
Headlight aim ( →P. 4 4 2 )• Phillips-head screwdriver
Radiator and condenser ( →P. 4 0 0 )
Wa s h e r f l u i d ( →P. 4 0 5 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

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4-3. Do-it-yourself maintenance
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Maintenance and care
10_IS250C/350C_U
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown.
If this happens, check and replace the fuses as necessary.
Turn the “ENGINE START STOP” switch OFF.
Engine compartment (type B fuse box): Remove the engine
compartment cover. ( →P. 394)
Open the fuse box cover.
Engine compartment (type A fuse box)
Push the tabs in and lift the lid
off.
Engine compartment (type B fuse box) Push the tabs in and lift the lid
off.STEP1
STEP2
STEP3

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4-3. Do-it-yourself maintenance
10_IS250C/350C_U■
Tr u n k
FuseAmpereCircuit
1DEFOG30 ARear window defogger
2ROOF RH30 ARetractable hardtop
3ROOF LH30 ARetractable hardtop
4LGG RH30 ARetractable hardtop
5LGG LH30 ARetractable hardtop
6LGG LCK RH30 ARetractable hardtop
7LGG LCK LH30 ARetractable hardtop
8P-T R AY M A I N30 ARetractable hardtop
9P-T R AY S I D E7. 5 ARetractable hardtop
10PSB30 APre-collision seat belt
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. ( →P. 444)
●If the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.
■If there is an overload in the circuits
The fuses are designed to blow before the entire wiring harness is damaged.

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4-3. Do-it-yourself maintenance
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Maintenance and care
10_IS250C/350C_U
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than indicated, or use any other
object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
●Do not modify fuses or the fuse box.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer.

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Alphabetical index
10_IS250C/350C_U
Engine compartment cover............. 394
Engine coolantCapacity...................................................531
Checking ............................................... 398
Preparing and checking before winter .................................... 220
Engine coolant temperature gauge ....................................................... 159
Engine immobilizer system ..................93
Engine oil Capacity.................................................530
Checking ............................................... 395
Preparing and checking before winter .................................... 220
Engine oil maintenance data ............397
EPS............................................................. 204
Event data recorder.............................. 461
Floor mat.................................................. 358
Fluid Brake .......................................................400
Washer ................................................... 405
Fog lights Switch ........................................................ 176
Wattage ................................................... 541
Foot well lights....................................... 338
Front fog lights Switch ........................................................ 176
Wattage ................................................... 541 Front passenger occupant
classification system ............................. 111
Front passenger's seat belt reminder light...................................... 465
Front seats Adjustment .................................................51
Driving position memory ..................56
Seat position memory ........................60
Front turn signal lights Switch........................................................ 156
Wattage ................................................... 541
Fuel
Capacity .................................................529
Fuel gauge.............................................. 159
Fuel pump shut off system............ 460
Information ............................................542
Refueling....................................................90
Fuel door .....................................................90
Fuel filler door ...........................................90
Fuel pump shut off system.................460
Fuses .......................................................... 427
Garage door opener .......................... 362
Gauges ...................................................... 159
Glove box ................................................340
Glove box light ....................................... 341
F
G

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Alphabetical index
10_IS250C/350C_U
Parking assist sensors .......................... 198
Parking brake .......................................... 157
Parking lightsReplacing light bulbs........................ 444
Switch ........................................................ 173
Wattage....................................................541
PCS ............................................................. 212
Personal lights Switch ...................................................... 339
Power outlet............................................354
Power windows ........................................ 78
Pre-collision system.............................. 212
Radar cruise control ............................. 187
Radiator ................................................... 400
Radio .......................................................... 242
RDS ............................................................ 244
Rear turn signal lights
Replacing light bulbs........................ 444
Wattage....................................................541
Rear view mirror Compass ...............................................368
Rear window defogger.......................238
Replacing Electronic key battery...................... 425
Fuses .........................................................427
Light bulbs............................................. 444
Tires ..........................................................486
Reporting safety defects for U.S. owners ..........................................564
Retractable hardtop ................................ 81 Scuff lights................................................ 338
Seat belts
Adjusting the seat belt ....................... 65
Automatic locking retractor ............67
Child restraint system installation ............................................ 120
Cleaning and maintaining the seat belts .................................... 378
Emergency locking retractor.......... 67
How to wear your seat belt ............ 65
How your child should wear the seat belt.......................................... 68
Pregnant women, proper seat belt use ........................ 68
Reminder light..................................... 465
Seat belt extenders.............................. 68
Seat belt guide........................................66
Seat belt pretensioners ...................... 67
Seat heaters ............................................ 355
Seat position memory............................ 60
Seat ventilators ...................................... 355
Seating capacity......................................219
Seats Adjustment ................................................ 51
Adjustment precautions ................... 55
Child seats/child restraint
system installation ............................ 120
Cleaning ................................................. 377
Driver’s seat position memory ...... 56
Front passenger seat position
memory ................................................. 60
Head restraint ......................................... 62
Properly sitting in the seat................ 98
Seat heaters ......................................... 355
Ventilated seats.................................. 355
Service reminder indicators .............165P
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