Air conditioning Lexus ES350 2009 User Guide

192
3-1. Using the air conditioning system and defogger
ES350_U_(L/O_0808)
Adjusting the position of and opening and closing the air outlets
Center outlets
Direct air flow to the left or right,
up or down
Front outlets (right and left side)
Direct air flow to the left or right,
up or down
Turn the knob right to open the
vent and left to close the vent
Rear outlets
Direct air flow to the left or right,
up or down
Turn the knob up to open the
vent and down to close the vent

193
3-1. Using the air conditioning system and defogger
3
Interior features
ES350_U_(L/O_0808)
■Using the automatic mode
Fan speed is adjusted automatically in accordance with the temperature setting and
ambient conditions. As a result, the following may occur.
●The system may switch automatically to recirculated mode when the coolest
temperature setting is selected in summer.
●Immediately after the switch is pressed, the fan may stop for a while until warm
or cool air is ready to flow.
●Cool air may flow to the area around the upper body when the heater is on.
■Using the system in recirculated air mode
The windows will fog up more easily if the recirculated air mode is used for an
extended period.
■Window defogger feature
Recirculated air mode may automatically switch to
(outside air) mode in sit-
uations where the windows need to be defogged.
■Outside air temperature approaches 32 °F (0 °C).
The air conditioning system may not operate even when
is pressed.
■When the indicator light on flashes
Press
and turn off the air conditioning system before turning it on once
more. There may be a problem in the air conditioning system if the indicator light
continues to flash. Turn the air conditioning system off and have it inspected by your
Lexus dealer.
■Automatic mode for air intake control
In automatic mode, the system detects exhaust gas and other pollutants and auto-
matically switches between outside air and recirculated air modes.
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The dif-
ference between the temperature of the outside air and that of the windshield can
cause the outer surface of the windshield to fog up, blocking your vision.

194
3-1. Using the air conditioning system and defogger
ES350_U_(L/O_0808)
NOTICE
■To prevent battery discharge
Do not leave the automatic air conditioning system on longer than necessary when
the engine is stopped.

195
3-1. Using the air conditioning system and defogger
3
Interior features
ES350_U_(L/O_0808)
Rear window and outside rear view mirror defoggers
CAUTION
■When the outside rear view mirror defoggers are on
Do not touch the outside surface of the rear view mirror, as it can become very hot
and burn you.
These features are used to defog the rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
Without navigation system ON/OFF
The defoggers will automatically
turn off after 15 to 60 minutes.
The operation time changes
according to the ambient tem-
perature and vehicle speed.
With navigation systemON/OFF
The defoggers will automatically
turn off after 15 to 60 minutes.
The operation time changes
according to the ambient tem-
perature and vehicle speed.

235
3-3. Using the hands-free phone system (for cellular phone)
3
Interior features
ES350_U_(L/O_0808)
■Automatic adjustment of volume
When vehicle speed is 50 mph (80 km/h) or more, the volume automatically
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 a command correctly and clearly.
■The system may not recognize your voice in the following situations:
●When driving on a rough road
●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
■The following cannot be performed while driving:
●Operating the system with
●Registering a cellular phone to the system
■Changing the passkey
→ P. 2 4 3

Maintenance and care4
291
ES350_U_(L/O_0808)
4-1. Maintenance and careCleaning and protecting the vehicle exterior............. 292
Cleaning and protecting the vehicle interior .............. 295
4-2. Maintenance Maintenance requirements ....................... 298
General maintenance ......... 300
Emission inspection and maintenance (I/M)
programs............................... 303 4-3. Do-it-yourself maintenance
Do-it-yourself service precautions ........................... 304
Hood .......................................... 308
Positioning a floor jack ......... 309
Engine compartment ............. 311
Tires............................................ 326
Tire inflation pressure........... 334
Wheels ...................................... 338
Air conditioning filter ........... 340
Electronic key battery.......... 342
Checking and replacing fuses ........................................ 344
Headlight aim ......................... 352
Light bulbs................................ 354

306
4-3. Do-it-yourself maintenance
ES350_U_(L/O_0808)
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.
■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.
●Take care because brake fluid can harm your hands or eyes and damage painted
surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean water
immediately.
If you still experience discomfort, see a doctor.
■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. 3 1 9 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in the eyes.

340
4-3. Do-it-yourself maintenance
ES350_U_(L/O_0808)
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to main-
tain air conditioning efficiency.
■Replacement method
Turn the “ENGINE START STOP” switch OFF.
Open the glove box. Remove
the glove box cover.
Remove the filter cover.
Remove the filter.
Be sure that the correct side of
the filter faces up when installing
it.
STEP1
STEP2
STEP3
STEP4

341
4-3. Do-it-yourself maintenance
4
Maintenance and care
ES350_U_(L/O_0808)
■Checking interval
Inspect, clean and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, more frequent cleaning or
early replacement may be required. (For scheduled maintenance information,
please refer to the “Warranty and Services Guide/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
■To prevent damage to the system
●When using the air conditioning system, make sure that a filter is always installed.
●When cleaning the filter, do not clean the filter with water.
■Cleaning method
If the filter is dirty, clean by blow-
ing compressed air through the
filter from the downward side.
Hold the air gun 2 in. (5 cm)
from the filter and blow for
approximately 2 minutes at 72
psi (500 kPa, 5.0 kgf/cm
2 or
bar).
If it is not available, have the filter
cleaned by your Lexus dealer.

346
4-3. Do-it-yourself maintenance
ES350_U_(L/O_0808)
Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1PSB30 APre-collision seat belt
2H-LP CLN30 A
3P-P / SEAT30 APo w e r s e a t
4RR DEF50 ARear window defogger
5ABS NO.230 AAnti-lock brake system, vehicle stabil-
ity control system
6FAN MAIN50 AElectric cooling fans
7ABS NO.150 AAnti-lock brake system, vehicle stabil-
ity control system
8HTR50 AAir conditioning system
9RR FOG10 A
10ALT-CDS10 AAlternator condenser
11ST30 AStarting system