2013 Lexus IS250 air conditioning

219
3-1. Using the air conditioning system and defogger
3
Interior features
Windshield wiper de-icer
■The windshield wiper de-icer
The “ENGINE START STOP” switch is in IGNITION ON mode.
CAUTION
■When the windshield wiper de-icer is on
The surface of the glass at the lower part and sides of the windshield become very
hot. To prevent burning yourself, do not touch these areas.
: If equipped
This feature is used to prevent ice fr om building up on the windshield and
wiper blades.
On/off
The windshield wiper de-icer
will automatically turn off after
approximately 15 minutes.

277
3-3. Using the Bluetooth® audio system
3
Interior features
■When using a voice command
For numbers, say a combination of single digits from zero to nine.
Say the command correctly and clearly.
■Situations in which the system may not recognize your voice
●When driving on rough roads
●When driving at high speeds
●When air is blowing out of the vents onto the microphone
●When the air conditioning fan emits a loud noise
■Operations that cannot be performed while driving
●Operating the system with , and
●Registering a portable player to the system
■Changing the passkey
P. 2 8 5

289
3-4. Using the hands-free phone system (for mobile phones)
3
Interior features
■Conditions under which the system will not operate
●If using a mobile phone that does not support Bluetooth®
●If the mobile phone is switched off
●If you are outside service range
●If the mobile phone is not connected
●If the mobile phone's battery is low
●If the mobile phone is be hind the seat or in the glove box or console box
●If metal is covering or touching the phone
■When using the hands-free system
●The audio system and voice guidance are muted when making a call.
●If both parties speak at the same time, it may be difficult to hear.
●If the incoming call volume is overly loud, an echo may be heard.
●Try to face toward the microphone as much as possible when speaking.
●In the following circumstances, it may be difficult to hear the other party:
• When driving on unpaved roads
• When driving at high speeds
• When a window is open
• When the air conditioning is blowing directly on the microphone
• When the air conditioning is set to high
■When transferring ownership of the vehicle
Be sure to initialize the system to prevent personal data from being improperly
accessed. (P. 3 1 1 )
■About Bluetooth®
Bluetooth is a registered trademark of
Bluetooth SIG. Inc.

299
3-4. Using the hands-free phone system (for mobile phones)
3
Interior features
■Automatic volume adjustment
When vehicle speed reaches 50 mph (80 km/h) or more, the volume automati-
cally increases. The volume returns to the previous volume setting when vehicle
speed drops to 43 mph (70 km/h) or less.
■When using a voice command
For numbers, say a combination of single digits from zero to nine, # (pound),
 (star), and + (plus).
Say the command correctly and clearly.
■Situations in which the system may not recognize your voice
●When driving on rough roads
●When driving at high speeds
●When air is blowing out of the vents onto the microphone
●When the air conditioning fan emits a loud noise
■Operations that cannot be performed while driving
●Operating the system with , and
●Registering a mobile phone to the system
■Changing the passkey
P. 3 0 7

Maintenance and care4
371
4-1. Maintenance and careCleaning and protecting the vehicle exterior............. 372
Cleaning and protecting the vehicle interior .............. 376
4-2. Maintenance Maintenance requirements ........................ 379
General maintenance ........... 381
Emission inspection and maintenance (I/M)
programs............................... 384 4-3. Do-it-yourself
maintenance
Do-it-yourself service precautions ........................... 385
Hood .......................................... 388
Positioning a floor jack ......... 389
Engine compartment ............ 391
Tires............................................ 406
Tire inflation pressure............ 418
Wheels ...................................... 422
Air conditioning filter ........... 424
Electronic key battery.......... 426
Checking and replacing fuses ........................................ 428
Headlight aim ......................... 442
Light bulbs ................................ 444

387
4-3. Do-it-yourself maintenance
4
Maintenance and care
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 easi ly, 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.
■When working near the electric cooling fan or radiator grille
Be sure the “ENGINE START STOP” switch is OFF.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fan may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. ( P. 400)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in the 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.

424
4-3. Do-it-yourself maintenance
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air condi-
tioning efficiency.
■Removal method
Set the air conditio ning system to recirculated mode.
( P. 210)
The air conditioning filter case cannot be removed with the system in
the outside air mode.
Turn the “ENGINE START STOP” switch OFF.
Open the glove box. Lift and
remove the partition.
Remove the filter cover.
Remove the filter case.
STEP1
STEP2
STEP3
STEP4
STEP5

425
4-3. Do-it-yourself maintenance
4
Maintenance and care
■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.
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the system.
■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.