engine Lexus IS250 2014 Owner's Manual

3906-2. Using the interior lights
IS250_EE(OM53C51E)
Turns the light on/off
Turns the door position on/off
Turns the light on/off
●Illuminated entry system: The lights automatically turn on/off according to engine
switch mode, the presence of the electronic key, whether the doors are locked/
unlocked, and whether the doors are opened/closed.
●If the interior lights remain on when the door is not fully closed and the interior light
main switch is in the door position, the lights will go off automatically after 20 minutes.
●Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: →P. 551)
Interior lights
1
2
Personal lights
XFrontXRear
NOTICE
To prevent battery discharge, do not leave the lights on longer than necessary when the
engine is off.

3926-3. Using the storage features
IS250_EE(OM53C51E)
Open (press the button)
Unlock with the mechanical key
Lock with the mechanical key
●The glove box light turns on when the engine switch is in ACCESSORY or IGNITION
ON mode.
●The trunk opener main switch is located in the glove box. (→P. 1 2 6 )
Push the knob.
Lift by hand to fully open the console
box.
Glove box
1
2
3
●The insert inside the glove box can be
removed.
Console box

3996-4. Using the other interior features
6
Interior features
IS250_EE(OM53C51E)
The power outlet can be used for 12 V accessories that run on less than 10 A.
Open the lid.
●The power outlet can be used when the engine switch is in ACCESSORY or IGNI-
TION ON mode.
Power outlet
●To fully close the console box with the cable
routed to outside the console box, insert the
cable into the holder.
NOTICE
●To avoid the damaging the power outlet, close the power outlet lid when the power
outlet is not in use. Foreign objects or liquids that enter the power outlet may cause a
short circuit.
●To prevent blown fuse, do not use an accessory that uses more than 12 V 10 A.
●To prevent battery discharge, do not use the power outlet longer than necessary
when the engine is off.

4016-4. Using the other interior features
6
Interior features
IS250_EE(OM53C51E)
●The rear sunshade can be used when the engine switch is in IGNITION ON mode.
●The rear sunshade can be operated for approximately 1 minute even after the engine
switch is turned to ACCESSORY mode or turned off.
●Reverse operation feature: To ensure adequate rear visibility, the rear sunshade auto-
matically lowers when the shift lever is shifted to R.
However, the rear sunshade is raised again if any of the following occurs:
• The button is pressed again.
*• The shift lever is shifted into P.
• The shift lever is shifted out of R, and the vehicle reaches a speed of 15 km/h (9
mph).
If the engine is off when the rear sunshade has been lowered due to the reverse opera-
tion feature, it will not be raised even when the engine is turned on again and the vehi-
cle reaches a speed of 15 km/h (9 mph). To raise the sunshade again, press the button.
*: Occasionally, the reverse function may not be carried out after the switch has been
pressed. Repeat the above operation to operate the function.
CAUTION
When the rear sunshade is being operated, do not place fingers or other objects in the
fastener section or in the opening. They may get caught, causing injury.
NOTICE
●To prevent battery discharge, do not operate the rear sunshade when the engine is
off.
●Observe the following precautions to ensure normal operation of the rear sunshade.
• Do not place excessive load on the motor or other components of the rear sun-
shade.
• Do not place objects where they may hinder opening and closing operations.
• Do not attach items to the rear sunshade.
• Keep the opening clean and clear of obstructions.
• Do not operate the rear sunshade continuously for long periods of time.

403
7Maintenance and care
IS250_EE(OM53C51E)
7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior................. 404
Cleaning and protecting
the vehicle interior..................408
7-2. Maintenance
Maintenance
requirements................................ 411
7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions..................................413
Hood ................................................ 415
Positioning a floor jack ...............416
Engine compartment ................. 417
Tires...................................................427
Tire inflation pressure ............... 436
Wheels ...........................................438
Air conditioning filter ............... 440
Electronic key battery .............. 442
Checking and replacing
fuses.............................................. 445
Light bulbs..................................... 449

4067-1. Maintenance and care
IS250_EE(OM53C51E)
CAUTION
■When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may cause the
electrical components etc. to catch fire.
■When cleaning the windshield (vehicles with rain-sensing windshield wipers)
●When the upper part of the windshield where the raindrop sensor is located is
touched by hand
●When a wet rag or similar is held close to the raindrop sensor
●If something bumps against the windshield
●If you directly touch the raindrop sensor body or if something bumps into the raindrop
sensor
■Precautions regarding the exhaust pipes
Exhaust gases cause the exhaust pipes to become quite hot.
When washing the vehicle, be careful not to touch the pipes until they have cooled suf-
ficiently, as touching hot exhaust pipes can cause burns.
■Precaution regarding the rear bumper with Blind Spot Monitor (if equipped)
If the paint of the rear bumper is chipped or scratched, the system may malfunction. If
this occurs, consult any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Set the wipers to the intermittent windshield
wipers. (→P. 2 1 8 )
If AUTO mode is selected, the wipers may
operate unexpectedly in the following situa-
tions, and may result in hands being caught or
other serious injuries and cause damage to the
wiper blades.

4127-2. Maintenance
IS250_EE(OM53C51E)
■Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Lexus recommends that
maintenance service operations as well as other inspections and repairs be carried out
by authorized Lexus dealers or repairers or other duly qualified and equipped profes-
sionals. For repairs and services covered by your warranty, please visit an authorized
Lexus dealer or repairer, who will use genuine Lexus parts in repairing any difficulties you
may encounter. There can also be advantages in utilizing authorized Lexus dealers or
repairers for non-warranty repairs and services, as members of the Lexus network will be
able to expertly assist you with any difficulties you may encounter.
Your Lexus dealer or repairer, or another duly qualified and equipped professional will
perform all of the scheduled maintenance on your vehicle reliably and economically due
to their experience with Lexus vehicles.
■Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs that indicate
service is needed. Some important clues are:
●Engine missing, stumbling or pinging
●Appreciable loss of power
●Strange engine noises
●A fluid leak under the vehicle (However, water dripping from the air conditioning sys-
tem after use is normal.)
●Change in exhaust sound (This may indicate a dangerous carbon monoxide leak. Drive
with the windows open and have the exhaust system checked immediately.)
●Flat-looking tires, excessive tire squeal when cornering, uneven tire wear
●Vehicle pulls to one side when driven straight on a level road
●Strange noises related to suspension movement
●Loss of brake effectiveness, spongy feeling brake pedal, pedal almost touches the floor,
vehicle pulls to one side when braking
●Engine coolant temperature continually higher than normal (→P. 9 5 )
If you notice any of these clues, take your vehicle to any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional as soon as possible. Your
vehicle may need adjustment or repair.
CAUTION
■If your vehicle is not properly maintained
Improper maintenance could result in serious damage to the vehicle and possible
death or serious injury.
■Handling of the battery
Battery posts, terminals and related accessories contain lead and lead compounds
which are known to cause brain damage. Wash your hands after handling. (→P. 4 2 2 )

413
7
Maintenance and care
IS250_EE(OM53C51E)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.
ItemsParts and tools
Battery condition
(→P. 4 2 2 )•Warm water• Baking soda•Grease
• Conventional wrench (for terminal clamp bolts)
• Distilled water
Engine coolant level
(→P. 4 2 1 )
• “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
“Toyota Super Long Life Coolant” is pre-mixed with 50%
coolant and 50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
(→P. 4 1 8 )
• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses
(→P. 4 4 5 )• Fuse with same amperage rating as original
Light bulbs
(→P. 4 4 9 )• Bulb with same number and wattage rating as original
• Phillips-head screwdriver•Flathead screwdriver
•Wrench
Radiator and
condenser
(→P. 4 2 2 )
Tire inflation
pressure
(→P. 4 3 6 )
• Tire pressure gauge• Compressed air source
Wa s h e r f l u i d
(→P. 4 2 6 )• Water or washer fluid containing antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

4147-3. Do-it-yourself maintenance
IS250_EE(OM53C51E)
CAUTION
The engine compartment contains many mechanisms and fluids that may move suddenly,
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 driving
as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and 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 corro-
sive sulfuric acid.
●Take care because brake fluid can harm your hands or eyes and damage painted sur-
faces. If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately.
If you still experience discomfort, consult a doctor.
■When working near the electric cooling fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant temperature is high.
(→P. 4 2 2 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting in
your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to dirt
in the air.
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or when
the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.

4177-3. Do-it-yourself maintenance
7
Maintenance and care
IS250_EE(OM53C51E)For right-hand drive vehicles:
The battery and the fuse box in front of the battery are located on the opposite side of the
engine compartment.
Engine compartment
Fuse boxes (→P. 4 4 5 )
Battery (→P. 422)
Engine oil level dipstick
(→P. 4 1 8 )
Engine coolant reservoir
(→P. 4 2 1 )
Engine oil filler cap (→P. 4 1 9 )Wa s h e r f l u i d t a n k (→P. 4 2 6 )
Electric cooling fans
Condenser (→P. 422)
Radiator (→P. 422)1
2
3
4
5
6
7
8
9