lights Lexus IS250 2014 Owner's Guide

1623-4. Adjusting the steering wheel and mirrors
IS250_EE(OM53C51E)
◆Auto anti-glare inside rear view mirror
Responding to the level of brightness of the headlights of vehicles behind, the
reflected light is automatically reduced.
Changing automatic anti-glare func-
tion mode
ON/OFF
When the automatic anti-glare func-
tion is in ON mode, the indicator illu-
minates.
The function will set to ON mode
each time the engine switch is turned
to IGNITION ON mode.
Pressing the button turns the function
to OFF mode. (The indicator also
turns off.)
■To prevent sensor error (vehicles with auto anti-glare inside rear view mirror)
Indicator
To ensure that the sensors operate properly, do
not touch or cover them.
CAUTION
Do not adjust the position of the mirror while driving.
Doing so may lead to mishandling of the vehicle and cause an accident, resulting in
death or serious injury.

175
4Driving
IS250_EE(OM53C51E)
4-1. Before driving
Driving the vehicle ....................... 176
Cargo and luggage .................... 183
Trailer towing................................. 184
4-2. Driving procedures
Engine (ignition) switch ............ 192
Automatic transmission.............197
Turn signal lever ..........................203
Parking brake.............................. 205
4-3. Operating the lights and
wipers
Headlight switch .........................206
Automatic High Beam .............209
Fog light switch............................. 213
Windshield wipers and
washer........................................... 215
4-4. Refueling
Opening the fuel tank cap....... 2214-5. Using the driving support
systems
Cruise control ............................. 225
Dynamic radar cruise
control ......................................... 229
LDA
(Lane Departure Alert) .......... 241
Lexus parking
assist-sensor...............................247
Rear view monitor system ...... 254
Driving mode select
switch ........................................... 263
Driving assist systems............... 265
PCS (Pre-Crash Safety
system) .......................................... 271
BSM (Blind Spot Monitor) ..... 278
•The Blind Spot Monitor
function .................................... 283
• The Rear Crossing Traffic
Alert function.........................285
4-6. Driving tips
Winter driving tips .....................288

1894-1. Before driving
4
Driving
IS250_EE(OM53C51E)
Your vehicle will handle differently when towing a trailer. In order to avoid acci-
dent, death or serious injury, keep the following in mind when towing:
■Checking connections between trailer and lights
Stop the vehicle and check the operation of the connection between the
trailer and lights after driving for a brief period as well as before starting off.
■Practicing driving with a coupled trailer
●Get the feel for turning, stopping and reversing with the trailer coupled by
practicing in an area with no or light traffic.
●When reversing with a coupled trailer, hold the section of the steering
wheel nearest to you and rotate clockwise to turn the trailer left or counter-
clockwise to turn it right. Always rotate a little at a time to prevent steering
error. Have someone guide you when reversing to lessen the risk of an
accident.
■Increasing vehicle-to-vehicle distance
At a speed of 10 km/h (6 mph), the distance to the vehicle running ahead of
you should be equivalent to or greater than the combined length of your vehi-
cle and trailer. Avoid sudden braking that may cause skidding. Otherwise, the
vehicle may spin out of control. This is especially true when driving on wet or
slippery road surfaces.
■Sudden acceleration/steering input/cornering
Executing sharp turns when towing may result in the trailer colliding with your
vehicle. Decelerate well in advance when approaching turns and take them
slowly and carefully to avoid sudden braking.
■Important points regarding turning
The wheels of the trailer will travel closer to the inside of the curve than the
wheels of the vehicle. To make allowance for this, take the turns wider than you
would normally do.
Guidance

2044-2. Driving procedures
IS250_EE(OM53C51E)
■Turn signals can be operated when
The engine switch is in IGNITION ON mode.
■If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.
■If the turn signals stop flashing before a lane change has been performed
Operate the lever again.
■Customization
The number of times the turn signals flash during a lane change can be changed.
(Customizable feature →P. 5 5 1 )

206
IS250_EE(OM53C51E)4-3. Operating the lights and wipers
Turning the end of the lever turns on the lights as follows:
The front position, tail, license
plate and instrument panel
lights turn on.
The headlights and all lights
listed above turn on.
The headlights, daytime run-
ning lights and all the lights
listed above turn on and off
automatically.
(When the engine switch is in
IGNITION ON mode.)
The daytime running lights turn
on.
With the headlights on, push the
lever away from you to turn on the
high beams.
Pull the lever toward you to the center
position to turn the high beams off.
Pull the lever toward you and release
it to flash the high beams once.
You can flash the high beams with the
headlights on or off.
Headlight switch
The headlights can be operated manually or automatically.
Operating instructions
1
2
3
4
Turning on the high beam headlights
1
2

2074-3. Operating the lights and wipers
4
Driving
IS250_EE(OM53C51E)
This system allows the headlights and front position lights to be turned on for 30
seconds when the engine switch is off.
Pull the lever toward you and release it
with the light switch is in or
after turning the engine switch off.
Pull the lever toward you and release it
again to turn off the lights.
■Daytime running light system
To make your vehicle more visible to other drivers, the front position lights turn on auto-
matically (at an increased intensity) whenever the engine is started and the parking brake
is released. Daytime running lights are not designed for use at night.
■Headlight control sensor
■Automatic light off system
●When the light switch is in or : The headlights and front fog lights turn off auto-
matically if the engine switch is turned to ACCESSORY mode or turned off.
●When the light switch is in : The headlights and all lights turn off automatically if the
engine switch is turned to ACCESSORY mode or turned off.
To turn the lights on again, turn the engine switch to IGNITION ON mode, or turn the
light switch off once and then back to or .
If any of the doors or trunk lid is left open, the lights automatically turn off after 20 min-
utes.
Follow me home system
The sensor may not function properly if an
object is placed on the sensor, or anything that
blocks the sensor is affixed to the windshield.
Doing so interferes with the sensor detecting
the level of ambient light and may cause the
automatic headlight system to malfunction.

2084-3. Operating the lights and wipers
IS250_EE(OM53C51E)
■Light reminder buzzer
A buzzer sounds when the engine switch is turned off or turned to ACCESSORY mode
and the driver’s door is opened while the lights are turned on.
■Automatic headlight leveling system
The level of the headlights is automatically adjusted according to the number of passen-
gers and the loading condition of the vehicle to ensure that the headlights do not inter-
fere with other road users.
■Operation guide display (vehicles with rain-sensing windshield wipers only)
When the headlight switch is operated to and from the “AUTO” position, the current sta-
tus is displayed on the meters for a few seconds to show that AUTO mode is activated/
deactivated. (→P. 1 0 3 )
■Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: →P. 5 5 7 )
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.

2094-3. Operating the lights and wipers
4
Driving
IS250_EE(OM53C51E)
Push the lever away from you with
the headlight switch in the or
position.
Press the Automatic High Beam
switch.
The Automatic High Beam indicator will
come on when the headlights are turned
on automatically to indicate that the sys-
tem is active.
Automatic High Beam∗
∗
: If equipped
The Automatic High Beam uses an in-vehicle camera sensor to assess the
brightness of streetlights, the lights of oncoming and preceding vehicles, etc.,
and automatically turns the high beam on or off as necessary.
Activating the Automatic High Beam system
1
2

2104-3. Operating the lights and wipers
IS250_EE(OM53C51E)
When all of the following conditions are met, the high beam will be automatically
turned on (after approximately 1 second):
●Vehicle speed is above approximately 40 km/h (25 mph).
●The area ahead of the vehicle is dark.
●There are no oncoming or preceding vehicles with headlights or tail lights
turned on.
●There are few streetlights on the road ahead.
If any of the following conditions are met, the high beam will be automatically
turned off:
●Vehicle speed drops below approximately 30 km/h (19 mph).
●The area ahead of the vehicle is not dark.
●Oncoming or preceding vehicles have headlights or tail lights turned on.
●There are many streetlights on the road ahead.
■Switching to low beam
Pull the lever to the original position.
The Automatic High Beam indicator
will turn off.
Push the lever away from you to acti-
vate the Automatic High Beam sys-
tem again.
■Switching to high beam
Press the Automatic High Beam
switch.
The Automatic High Beam indicator
will turn off and the high beam indi-
cator will turn on.
Press the switch to activate the Auto-
matic High Beam system again.
High beam automatic turning on or off conditions
Turning the high beam on/off manually

2114-3. Operating the lights and wipers
4
Driving
IS250_EE(OM53C51E)
■The Automatic High Beam can be operated when
The engine switch is in IGNITION ON mode.
■Camera sensor detection information
●High beam may not be automatically turned off in the following situations:
• When oncoming vehicles suddenly appear from a curve
• When the vehicle is cut in front of by another vehicle
• When oncoming or preceding vehicles are hidden from sight due to repeated
curves, road dividers or roadside trees
●High beam may be turned off if an oncoming vehicle that is using fog lights without
using the headlights is detected.
●House lights, street lights, red traffic signals, and illuminated billboards or signs may
cause the high beam to turn off.
●The following factors may affect the amount of time taken to turn high beam on or off:
• The brightness of headlights, fog lights, and tail lights of oncoming and preceding
vehicles
• The movement and direction of oncoming and preceding vehicles
• When an oncoming or preceding vehicle only has operational lights on one side
• When an oncoming or preceding vehicle is a two-wheeled vehicle
• The condition of the road (gradient, curve, condition of the road surface etc.)
• The number of passengers and amount of luggage
●High beam may be turned on or off when unexpected by the driver.
●Small vehicles, such as bicycles, may not be detected.
●In the situations below, the system may not be able to correctly detect the surrounding
brightness levels, and may flash or expose nearby pedestrians to the high beam. There-
fore, you should consider turning the high beams on or off manually rather than relying
on the Automatic High Beam system.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The camera sensor is deformed or dirty.
• Surrounding brightness levels are equal to those of headlights, tail lights or fog lights.
• Vehicles ahead have headlights or tail lights that are either switched off, dirty, chang-
ing color, or have improperly adjusted aim.
• When driving through an area of intermittently changing brightness and darkness.
• When frequently and repeatedly driving ascending/descending roads, or roads with
rough, bumpy or uneven surfaces (such as stone-paved roads, gravel tracks etc.).
• When frequently and repeatedly taking curves or driving on a winding road.
• There is a highly reflective object ahead of the vehicle, such as a sign or a mirror.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is listing or titling, due to a flat tire, a trailer being towed etc.
• The driver believes that the high beam may be causing problems or distress to other
drivers or pedestrians nearby.
• The vehicle is used in a territory in which vehicles travel on the opposite side of the
road of the country for which the vehicle is approved, for example using a vehicle
designed for right-hand traffic in a left-hand traffic territory, or vice versa.