air condition Lexus IS250C 2010 User Guide

202
2-4. Using other driving systems
10_IS250C/350C_U
■Sensor detection information
●Certain vehicle conditions and the surrounding environment may affect the
ability of the sensor to correctly detect obstacles. Particular instances where this
may occur are listed below.
• There is dirt, snow or ice on the sensor.
• The sensor is frozen.
•The sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass.
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines,air brakes of large vehicles, or other loud noises producing ultrasonic waves.
• There is another vehicle equipped with parking assist sensors in the vicinity.
• The sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or wireless antenna.
• Towing eyelets are installed.
• The bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or curved curb.
• In harsh sunlight or intense cold weather
In addition to the examples above, there are instances in which, because of their
shapes, signs and other objects may be judged by the sensor to be closer than they
are.
●The shape of the obstacle may prevent the sensor from detecting it. Pay particu-
lar attention to the following obstacles.
• Wires, fences, ropes etc.
• Cotton, snow and other materials that absorb radio waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction of your
vehicle
■When the display flashes and a message is displayed
→ P. 4 7 2

220
2-5. Driving information
10_IS250C/350C_U
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■Pre-winter preparations
● Use fluids that are appropriate to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspect the level and specific gravity of
battery electrolyte.
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the specified size and the same brand, and that
chains match the size of the tires.
■Before driving the vehicle
Perform the following according to the driving conditions.
● Do not try to forcibly open a window or move a wiper that is fro-
zen. Pour warm water over the frozen area to melt the ice. Wipe
away the water immediately to prevent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumulated on the air inlet vents in
front of the windshield.
● Remove any ice that has accumulated on the vehicle chassis.
● Periodically check for and remove any excess ice or snow that
may have accumulated in the wheel well or on the brakes.

228
10_IS250C/350C_U
3-1. Using the air conditioning system and defogger
Automatic air conditioning system ........... 230
Rear window and outside rear view
mirror defoggers................. 238
3-2. Using the audio system Audio system type ................. 239
Using the radio ....................... 242
Using the CD player ............. 250
Playing back MP3 and WMA discs ........................... 257
Operating an iPod
®
player ...................................... 265
Operating a USB memory player ...................................... 273
Optimal use of the audio system ..................................... 282
Using the AUX adapter....... 284
Using the steering wheel audio switches ......... 286

230
10_IS250C/350C_U
3-1. Using the air conditioning system and defogger
Automatic air conditioning system
Using the automatic modePress .
The air conditioning system will begin to operate. Air outlets and fan
speed are automatically adjusted according to the temperature setting.
Press to switch to automa tic mode. (IS350C only)
Automatically switches between outside air and recirculated air modes.
Air outlets and fan speed are automatically adjusted according to the tem-
perature setting.
With navigation system
Owners of models equipped with a navigation system should refer to the
“Navigation System Owner's Manual”.
Without navigation system
Automatic mode
Driver’s side temperature
setting display Changes the air outlets used
Off Fan speed
Airflow display
Fan speed display
Passenger’s side
temperature setting displayMicro dust and
pollen filter
Driver's side
temperature control
Air conditioning on/off switch Outside air or recirculated modeWindsh ield defo gger
Passenger’s side
temperature control
Dual operation switch
STEP1
STEP2

231
3-1. Using the air conditioning system and defogger
3
Interior features
10_IS250C/350C_UPress “
∧” on to increase the temperature and “ ∨” to
decrease the temperature.
The temperature for the driver and passenger seats can be set sepa-
rately.
Adjusting the settings ■ Adjusting the temperature setting
Press “ ∧” on to increase the temperature and “ ∨” to decrease
the temperature.
The air conditioning system switches between individual and simultaneous
modes each time is pressed.
Dual mode (the indicator on is on): The temperature for the
left-hand seat and right-hand seat can be adjusted separately. Operat-
ing the passenger's side temperature control will enter dual mode.
Simultaneous mode (the indicator on is off): Only
(driver’s side) can be used to adjust the temperature for all seats.
■ Adjusting the fan speed
Press “ ∧” (increase) or “∨ ” (decrease) on .
Press to turn the fan off.
STEP3

232
3-1. Using the air conditioning system and defogger
10_IS250C/350C_U■
Changing the air outlets
Press .
The air outlets switch each time the is pressed. The air flow shown
on the display indicates the following.
Upper body
Upper body and feet
Feet

233
3-1. Using the air conditioning system and defogger
3
Interior features
10_IS250C/350C_U Feet and windshield
■ Switching between outside air and recirculated air modes
IS250C
Press .
The mode switches between (recycles air inside the vehicle) and (introduces air from outside the vehicle) modes each time
is pressed.
IS350C
Press .
The mode switches among (recycles air inside the vehicle),
“AUTO” and (introduces air from outside the vehicle) modes each
time is pressed.
When the system is switched to automatic mode, the air conditioning
system operates automatically.
Defogging the windshield
Press .
The air conditioning system control
operates automatically.
Recirculated air mode may auto-
matically switch to (outside
air) mode when the ambient tem-
perature is low.

234
3-1. Using the air conditioning system and defogger
10_IS250C/350C_U
Micro dust and pollen filterPress .
Outside air mode switches to (recirculated air) mode. Pol-
len is removed from the air and the
air flows to the upper part of the
body.
Usually the system will turn off
automatically after approximately 1
to 3 minutes.
To stop the operation, press again.
Adjusting the sensitivity of the air intake control in automatic mode (IS350C only)
Press for 2 or more sec-
onds.STEP1

235
3-1. Using the air conditioning system and defogger
3
Interior features
10_IS250C/350C_U Press “
∧” (increase) or “ ∨”
(decrease) on .
From -3 (low) to 3 (high) can be
set.
Adjusting the position of and op ening and closing the air outlets
Front outlets (center) Direct air flow to the left or right,
up or down
Turn the knob to open or close
the vent
Front outlets (right and left side) Direct air flow to the left or right,
up or down
Turn the knob to open or close
the vent
STEP2

236
3-1. Using the air conditioning system and defogger
10_IS250C/350C_URear outlets
Direct air flow to the left or right,
up or down
Turn the knob fully to the outside
of the vehicle to close the vent
■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.
●Immediately after 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.
■Switching between outside air and recirculated air modes
Recirculated air mode or outside air mode may be automatically switched to in
accordance with the temperature setting and the inside temperature. When the
retractable hardtop is opened, recirculated air mode is automatically selected.
■Window defogger feature
Recirculated air mode may automatically switch to
(outside air) mode in situ-
ations where the windows need to be defogged.
■When outside air temperature approaches 32° F (0°C)
The air conditioning system may not operate even when is pressed.