lights Lexus IS250 2012 Owner's Guide

176
2-3. Operating the lights and windshield wipers
IS350/250_U
Fog light switch
The fog lights improve visibility in difficult driving conditions, such as in rain
or fog. They can be turned on only when the headlights are on low beam.
Ty p e ATurns the front fog
lights off
Turns the front fog
lights on

177
2-3. Operating the lights and windshield wipers
2
When driving
IS350/250_U
Ty p e BTurns the front fog
lights off
Turns the front fog
lights on

178
2-3. Operating the lights and windshield wipers
IS350/250_U
Windshield wipers and washer
■Intermittent wiper with interval adjuster (if equipped)
Wiper intervals can be adjusted for intermittent operation (wiper
operate at a set interval).
Ty p e A
Off
Intermittent wind-
shield wiper operation
Low speed windshield
wiper operation
High speed wind-
shield wiper operation
Temporary operation
Releasing the lever returns to.

179
2-3. Operating the lights and windshield wipers
2
When driving
IS350/250_U
Ty p e BOff
Intermittent wind-
shield wiper operation
Low speed windshield
wiper operation
High speed wind-
shield wiper operation
Temporary operation
Releasing the lever returns to
.
Increases the intermittent
windshield wiper frequency
Decreases the intermittent
windshield wiper frequency

180
2-3. Operating the lights and windshield wipers
IS350/250_U
Washer/wiper operation
Wipers operate automatically.
(After operating several times,
the wipers operate one more
time after a short delay to pre-
vent dripping.)
■Rain-sensing windshield wipers (if equipped)
When is selected, the wipers will operate automatically when
the sensor detects falling rain. The system automatically adjusts wiper
timing according to rain volume and vehicle speed.
The wiper operation is selected as fo llows by turning the switch ring.
When is selected, the sensor sensitivity can be also adjusted:
Ty p e A Off
Rain-sensing wind-
shield wiper operation
Low speed windshield
wiper operation
High speed wind-
shield wiper operation
Temporary operation
Releasing the lever returns to.

181
2-3. Operating the lights and windshield wipers
2
When driving
IS350/250_U
Ty p e BOff
Rain-sensing wind-
shield wiper operation
Low speed windshield
wiper operation
High speed wind-
shield wiper operation
Temporary operation
Releasing the lever returns to
.

182
2-3. Operating the lights and windshield wipers
IS350/250_U
■The windshield wipers and washer can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■Effects of vehicle speed on wiper operation
Vehicle speed affects the following even when the wipers are not in “AUTO” mode.
●Intermittent wiper interval
●Wiper operation when the washer is being used (delay until drip prevention
wiper sweep occurs)
Low speed wiper operation selected, wiper operation will be switched from low
speed to intermittent wiper operation only when the vehicle is stationary.
(However, the mode cannot be switched when the adjustment dial for the intermit-
tent wiper interval is set to the lowest setting.)
Sensor sensitivity (high)
Sensor sensitivity (low)
Washer/wiper operation
Wipers operate automatically.
(After operating several times,
the wipers operate one more
time after a short delay to pre-
vent dripping.)

183
2-3. Operating the lights and windshield wipers
2
When driving
IS350/250_U
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If the wiper switch is turned to the “AUTO” position while the “ENGINE START
STOP” switch is in IGNITION ON mode, the wiper will operate once to show
that auto mode is activated.
●If the temperature of the raindrop sensor is 194°F (90°C) or higher, or -22°F
(-30°C) or lower, automatic operation may not occur. In this case, operate the
wipers in any mode other than “AUTO”.
■Outside rear view mirror defogger activation linked to windshield wiper opera-
tion
The outside rear view mirror defogger automatically turns on when you operate the
windshield wipers.
■If no windshield washer fluid sprays
If there is washer fluid in the windshield washer fluid reservoir and no washer fluid
sprays, the nozzle may be blocked. In this case, contact your Lexus dealer.
■Customization that can be configured at Lexus dealer
Settings (e.g. drip prevention function) can be changed.
(Customizable features →P. 553)
●The sensor judges the amount of rain-
drops.

184
2-3. Operating the lights and windshield wipers
IS350/250_U
CAUTION
■Caution regarding the use of windshield wipers in “AUTO” mode (vehicles with
rain-sensing windshield wipers)
The windshield wipers may operate unexpectedly if the sensor is touched or the
windshield is subjected vibration in “AUTO” mode. Take care that your fingers etc.
do not become caught in the windshield wipers.
■Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes warm. The
fluid may freeze on the windscreen and cause low visibility. This may lead to an acci-
dent, resulting in death or serious injury.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■When a nozzle becomes blocked
Do not try to clear it with a pin or other object. The nozzle will be damaged.
■When there is no washer fluid spray from the nozzle
Damage to the washer fluid pump may be caused if the lever is pulled toward you
and held continually.

185
2-3. Operating the lights and windshield wipers
2
When driving
IS350/250_U
Headlight cleaner switch∗
■The headlight cleaner can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode and the headlight
switch is turned on.
■Windshield washer linked operation
Only for the first time when the windshield washer is operated with the “ENGINE
START STOP” switch in IGNITION ON mode and the headlights on, the headlight
cleaner will operate once. (→P. 1 7 8 )
■When using the headlight cleaner
The washer fluid will spray out into the surrounding area and may get on clothes,
items etc. Therefore, check the surrounding area before using the headlight
cleaner.
NOTICE
■When the washer fluid tank is empty
Do not use this function when the washer fluid tank is empty. This may cause the
washer fluid pump to overheat.
Washer fluid can be sprayed on the headlights.
Press the switch to clean the
headlights.
∗: If equipped