lights Lexus IS250C 2010 Do-It-Yourself Maintenance / LEXUS 2010 IS350C/250C QUICK GUIDE OWNERS MANUAL (OM53738U)

Entering and Exiting
Before Driving
When Driving
Rain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing
Yo u r L e x u s
2
Driving Comfort
Topic 5
Opening and Closing
Topic 6
What to do if ...
Customizing Your LexusResponding to warning/indicator lights
and other problems that may arise.
A list of features that can be customized.
Rain and Night Driving
Topic 4
●HeadlightsP. 3 3
●Fog LightsP. 3 4
●Windshield Wipers and
Wa s h e rP. 3 5
●Headlight CleanerP. 3 7
●Rear Window and Outside Rear
View Mirror DefoggersP. 3 7
●Instrument Panel Light
ControlP. 3 7
●Door LocksP. 8 3
●Po w e r Wi n d o w sP. 8 3
●Retractable HardtopP. 8 4
●Fuel Tank CapP. 8 6
●HoodP. 8 7
●Tr u n kP. 8 8
●Touch ScreenP. 3 9
●Navigation SystemP. 4 2
●Hands-free System For
Cellular PhoneP. 4 8 , 6 1
●Audio SystemP. 5 6 , 6 7
●Air Conditioning
SystemP. 6 0 , 7 2
●Speech Command
SystemP. 7 3
●Garage Door OpenerP. 7 9
Depending on specifications, the vehicle shown in the illustration may
differ from your vehicle in terms of color and equipment.

Topic 1
Entering and Exiting
11
Theft Deterrent System
■Engine immobilizer system
The engine immobilizer system prevents the
engine from being started in the event that an
attempt is made to start the vehicle using an
unregistered key.
The security indicator light flashes to indicate that
the system is set.
■Alarm
The system sounds the alarm and flashes lights when forcible entry is detected.
To set the alarm: lock both side doors from outside the vehicle. The security indicator light
comes on to indicate that the alarm is in its preparation state. When the indicator light
begins to flash, the system is armed.
To deactivate or stop the alarm: turn the “ENGINE START STOP” switch to ACCESSORY
or IGNITION ON mode, or unlock the doors or trunk using the electronic key or the wire-
less remote control.
■Steering lock
The steering wheel locks when the “ENGINE
START STOP” switch is OFF and the driver’s door
is opened.
When the steering lock cannot be released, the
green indicator light on the “ENGINE START
STOP” switch will flash and a message will be
shown on the multi-information display. To release
it, gently turn the wheel left or right while pressing
the “ENGINE START STOP” switch.
The theft deterrent system includes the following features to help protect your vehicle from
theft.

Topic 3
When Driving
26
Entering and Exiting
Before DrivingBefore Driving
When DrivingWhen Driving
Rain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing
Yo u r L e x u s
Tu r n S i g n a l L e v e r
Right turn signal
Left turn signal
Emergency Flasher Switch
Engaging the emergency flasher switch causes all
the turn signal lights to flash.
The emergency flashers can be operated even
when the “ENGINE START STOP” switch is OFF.
1
2
To signal a lane change, move the lever partway and hold.

Rain and Night DrivingTopic 4
Headlights............................................................... 33
Fog Lights ................................................................ 34
Windshield Wipers and Washer ...................... 35
Headlight Cleaner ............................................... 37
Rear Window and Outside Rear View
Mirror Defoggers................................................. 37
Instrument Panel Light Control ....................... 37

Topic 4
Rain and Night Driving
33
Headlights
Off
The instrument panel, side marker, parking, tail
and license plate lights turn on.
The headlights and all lights listed above turn on.
The headlights and parking lights turn on/off
automatically in accordance with ambient light
levels.
To engage the high beams, push the lever forward.
To flash the high beams, pull the lever and hold.
■AFS (Adaptive Front-lighting System) (if equipped)
AFS improves visibility on curves by automatically adjusting the horizontal orientation of the
headlights in accordance with vehicle speed and the degree of the tire angle that are con-
trolled by steering input.
The system can be turned on and off using the satellite switch. (P. 2 5 )
U.S.A.Canada
1
2
3
4

Topic 4
Rain and Night Driving
34
Entering and Exiting
Before DrivingBefore Driving
When Driving
Rain and
Night DrivingRain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing
Yo u r L e x u s
Fog Lights
The fog lights can be used only when the head-
lights (low beam) are on.
Front fog lights off
Front fog lights on
1
2

Topic 4
Rain and Night Driving
37
Headlight Cleaner (If Equipped)
The headlight cleaner can be used only when the
“ENGINE START STOP” switch is in IGNITION
ON mode and the headlights are on.
Rear Window and Outside Rear View
Mirror Defoggers
To defog the rear window and the outside rear
view mirrors, press the button.
Press again to cancel.

Instrument Panel Light Control
To d i m : turn the dial counterclockwise.
To b r i g h t e n : turn the dial clockwise.
The system turns off automatically after 15 to 60 minutes.
1
2

What to do if ...
89
List of Warning/Indicator Lights
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
(U.S.A.)
(Canada)Brake system warning light
Stop the vehicle immediately.
Charging system warning light
Have the vehicle inspected immediately.
(U.S.A.)
(Canada)Malfunction
indicator lamp
Electric power steering
warning light
Pre-collision system
warning light*1
SRS warning light
(Flashing and
then continu-
ously on)
Tire pressure warning light(U.S.A.)
(Canada)ABS warning light
For further information, refer to the Owner's Manual.

96
Entering and Exiting
Before Driving
When Driving
Rain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing
Yo u r L e x u s
ItemFunctionDefault
settingCustomized
setting
Retractable
hardtopRetractable hardtop operation
control linked to the intuitive
parking assist
OnOff
Automatic light
control system
Light sensor sensitivityLevel 3Level 1 to 5
Time elapsed before headlights
automatically turn off after
doors are closed
30 seconds
0 seconds
60 seconds
90 seconds
LightsDaytime running light system
(U.S.A. only)OnOff
Windshield
wipers and
washer
Switching operation when the
vehicle is stationaryOnOff
Drip prevention functionOnOff
Time elapsed before the drip
prevention function operates
Va r i a b l e
depending on
the vehicle
speed
3 seconds
Intuitive parking
assist
Back sensor operation display
and buzzerOnOff
Buzzer volumeLevel 3Level 1 to 5
Distance which a sensor detects4.9 ft. (150 cm)2.0 ft. (60 cm)
Illumination
Time elapsed before lights turn
off15 seconds7. 5 s e c o n d s
30 seconds
Operation when the doors are
unlockedOnOff
Operation after the “ENGINE
START STOP” switch turned
OFF
OnOff
Front foot well lightsOnOff
Shift lever lightOnOff
Outer foot lightsOnOff