bulb Lexus IS250 2014 VOICE COMMAND SYSTEM OPERATION / LEXUS 2014 IS250,IS350 OWNERS MANUAL (OM53758U)

TABLE OF CONTENTS6
IS350/250_U (OM53758U)
7-1. Maintenance and careCleaning and protecting the vehicle exterior ................ 384
Cleaning and protecting the vehicle inte rior.................. 387
7-2. Maintenance Maintenance requirements ............................ 390
General maintenance.............. 393
Emission inspection and maintenance (I/M)
programs .................................... 396
7-3. Do-it-yourself maintenance Do-it-yourself service precautions.................................397
Hood ............................................... 399
Positioning a floor jack.............400
Engine compartment ................ 401
Tires..................................................... 411
Tire inflation pressure ............... 420
Wheels ........................................... 423
Air conditioning filter ............... 425
Electronic key battery...............427
Checking and replacing fuses.............................................. 429
Light bulbs .................................... 432 8-1. Essential information
Emergency flashers .................. 446
If your vehicle has to be stopped in
an emergency ...........................447
8-2. Steps to take in an emergency
If your vehicle needs to be towed................................ 448
If you think something is wrong....................................... 453
Fuel pump shut off system ...... 454
If a warning light turns on or a warning buzzer
sounds ......................................... 455
If a warning message is displayed .................................. 461
If you have a flat tire ...................475
If the engine will not start ........ 485
If the shift lever cannot be shifted from P ..................... 487
If the electronic key does not operate properly .............488
If the vehicle battery is discharged............................. 490
If your vehicle overheats ......... 494
If the vehicle becomes stuck .............................................. 497
7Maintenance and care8When trouble arises

15Pictorial index
IS350/250_U (OM53758U)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 182
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 254
To prevent freezing (windshield wiper de-icer)
* . . . . . . . . . . . . . . . . . . . . . . . P. 350
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 385
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 1 8 8
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 188
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 502
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 411
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 507
Winter tires/tire chain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 254
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . . . . P. 411
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 475
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 399
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 399
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 502
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 494
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 46 3
Headlights/parking lights/daytime running lights . . . . . . . . . . . . . . . . . . . P. 173
Fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 181
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 170
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 173
Stop lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 146
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 17 3
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 16 4
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 173
4
5
6
7
Light bulbs of the exterior lights for driving(Replacing method: P. 432, Watts: P. 509)
*: If equipped
8
9
10
11
12
13
14
15

1714-2. Driving procedures
4
Driving
IS350/250_U (OM53758U)
■Turn signals can be operated when
The engine switch is in IGNITION ON mode.
■If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.
■If the turn signals stop flashing before a lane change has been performed
Operate the lever again.
■Customization
The number of times the turn signals flash during a lane change can be changed.
(Customizable feature P. 5 2 5 )

383
Maintenance and care7
IS350/250_U (OM53758U)
7-1. Maintenance and careCleaning and protecting the vehicle exterior.................384
Cleaning and protecting the vehicle interior .................. 387
7-2. Maintenance Maintenance requirements.............................390
General maintena nce .............. 393
Emission inspection and maintenance (I/M)
programs .................................... 396
7-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................ 397
Hood ............................................... 399
Positioning a floor jack ............ 400
Engine compartment ................ 401
Tires ..................................................... 411
Tire inflation pressure ............... 420
Wheels ........................................... 423
Air conditioning filter ............... 425
Electronic key battery ...............427
Checking and replacing fuses .............................................. 429
Light bulbs..................................... 432

397
IS350/250_U (OM53758U)
7
Maintenance and care
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct proce-
dure as given in these sections.
ItemsPa r t s a n d t o o l s
Battery condition
( P. 4 0 8 )•Warm water• Baking soda•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
( P. 4 0 7 )• SAE J1703 or FMVSS No.116 DOT 3 brake fluid
•Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine coolant level
( P. 4 0 5 )
• “Toyota Super Long Life Coolant” or a similar high quality
ethylene glycol-based non-silicate, non-amine, non-nitrite
and non-borate coolant with long-life hybrid organic acid
technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with 50%
coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Coolant” is pre-mixed with 55%
coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
( P. 4 0 2 )
• “Toyota Genuine Motor Oil” or equivalent
•Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses
( P. 4 2 9 )• Fuse with same amperage rating as original
Light bulbs
( P. 4 3 2 )
• Bulb with same number and wattage rating as original
• Phillips-head screwdriver•Flathead screwdriver
•Wrench
Radiator and con-
denser ( P. 4 0 6 )
Tire inflation pres-
sure (P. 4 2 0 )•Tire pressure gauge• Compressed air source
Wa s h e r f l u i d
( P. 4 1 0 )• Water or washer fluid containi ng antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

4317-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53758U)
■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. 4 3 2 )
●If the replaced fuse blows again, have the vehicle inspected by your Lexus dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■When replacing light bulbs
Lexus recommends that you use genuine Le xus products designed for this vehicle.
Because certain bulbs are connected to circuits designed to prevent overload, non-gen-
uine parts or parts not designed for this vehicle may be unusable.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage rati ng than that 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.
●Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determ ined and repaired by your Lexus dealer as
soon as possible.

4327-3. Do-it-yourself maintenance
IS350/250_U (OM53758U)
Check the wattage of the light bulb to be replaced. ( P. 5 0 9 )
■Front
Vehicles with discharge headlights
Light bulbs
You may replace the following bulbs by yourself. The difficulty level of replace-
ment varies depending on the bulb. If necessary bulb replacement seems diffi-
cult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
Preparing for light bulb replacement
Bulb locations
Front turn signal light
Fog light (if equipped)1
2

4347-3. Do-it-yourself maintenance
IS350/250_U (OM53758U)
■Fog lights (if equipped) Remove the 2 fender liner screws
under the fog light and pull back
the fender liner.
Unplug the connector while
pressing the lock release.
Turn the bulb base counterclock-
wise.
Set the new light bulb.Hold the bulb base at an angle
of about 45 degrees as shown
in the illustration and insert it
so that the 3 tabs on the light
bulb are aligned with the
mounting.
Turn the light bulb clockwise to
install it.
Replacing light bulbs
1
2
3
4
1
2

4357-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/250_U (OM53758U)
Set the connector.
After installing the connector, shake
the bulb base gently to check that it is
not loose, turn the fog lights on once
and visually confirm that no light is
leaking through the mounting.
Reinstall the fender liner with the
2 screws.
5
6

4367-3. Do-it-yourself maintenance
IS350/250_U (OM53758U)
■Front turn signal lights (vehicles with discharge headlights) To ensure enough space to per-
form work, turn the steering
wheel to rotate the front wheel
away from the bulb to be
replaced.
Remove the 2 fender liner clips.
Turn the steering wheel to the left
when replacing the right side light
bulb, and turn the steering wheel to
the right when replacing the left side
light bulb.
To take out the lower clip, turn the
head of the clip to unlock it, then
remove it by pulling.
Unfasten the clamp, and pull back
the fender liner.
When unfastening the clamp, wrap
the tip of the screwdriver with tape to
protect the vehicle from damage.
Turn the bulb base counterclock-
wise.
1
2
3