2015 Lexus IS250 turn signal

1714-2. Driving procedures
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Driving
IS350/250_U (OM53C50U)
■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 3 7 )

2114-5. Using the driving support systems
4
Driving
IS350/250_U (OM53C50U)
■Temporary cancelation of the LDA system functions
If any of the following occurs, the LDA system functions will be temporarily canceled. The
functions will resume after the necessary operating conditions have returned.
●The turn signal lever is operated.
●The vehicle speed deviates from the operating range of the LDA system functions.
●When the lane lines cannot be recognized while driving.
●When the lane departure warning sounds.
The lane departure warning function will not operate again for a several seconds after it
has been activated, even if the vehicle leaves the lane again.
■The lane departure warning
Depending on the audio system sound level or air conditioning fan noise while the audio
system or air conditioning system is in use, it may be difficult to hear the warning sound.
■After the vehicle has been parked in the sun
The LDA system may not be available and a warning message ( →P. 476) will be dis-
played for a while after driving has started. When the temperature in the cabin decreases
and the temperature around the camera sensor ( →P. 196) becomes suitable for its oper-
ation, the functions will begin to operate.
■If there are lane markers on only one side of the vehicle
The lane departure warning will not operate for the side on which lane markers could not
be recognized.
■Conditions in which the function may not operate correctly
In the following situations, the camera sensor may be unable to recognize lane markers
causing the lane departure warning function to operate incorrectly. However, this does
not indicate a malfunction.
●When driving through an area with no lane markers, such as a tollbooth, a crossing or
before a ticket checkpoint
●When driving on a sharp curve
●When lane markers are extremely narrow or extremely wide
●When the vehicle leans to one side an unusual amount due to a heavy load or improper
tire inflation pressure
●When the following distance between your vehicle and the vehicle ahead is extremely
short
●When the lane markers are yellow (These ma y be more difficult for the system to rec-
ognize compared to white markers.)
●When the lane markers are broken, Botts’ dots (raised pavement markers) or stones
●When the lane markers are on a curb etc.
●When lane markers are obscured or partially obscured by sand, dirt, etc.
●When there are shadows on the road running parallel with lane markers, or if a shadow
covers the lane markers
●When driving on a particularly bright road surface, such as concrete
●When driving on a road surface that is bright due to reflected light
●When driving in a location where the light leve l changes rapidly, such as the entrance to
or exit from a tunnel
●When sunlight or the headlight s of oncoming vehicles are shining directly into the cam-
era lens

2344-5. Using the driving support systems
IS350/250_U (OM53C50U)
‰ The estimated course lines move even though the steering wheel is straight
There is a malfunction in the signals being
output by the steering sensor.Have the vehicle inspected by your Lexus
dealer.
‰ Guide lines are not displayed
The trunk is open.
Close the trunk.
If this does not resolve the symptom, have
the vehicle inspected by your Lexus
dealer.
‰The estimated course lines are not displayed
• The steering wheel has been moved
while the battery was being reinstalled.
• Battery power is low.
• The steering sensor has been rein-
stalled.
• There is a malfunction in the signals being output by the steering sensor.Stop the vehicle, and turn the steering
wheel as far as it will go to the left and
right.
If this does not resolve the symptom, have
the vehicle inspected by your Lexus
dealer.
Likely causeSolution

2524-5. Using the driving support systems
IS350/250_U (OM53C50U)
The Blind Spot Monitor is a system that has 2 functions;
●The Blind Spot Monitor function
Assists the driver in making the decision when changing lanes
●The Rear Cross Traffic Alert function
Assists the driver when backing up
These functions use same sensors.
BSM (Blind Spot Monitor)∗
∗
: If equipped
Summary of the Blind Spot Monitor
BSM main switch
Pressing the switch turns the system on or off. When the switch is set to on, the
switch’s indicator illuminates and the buzzer sounds. Common switch for Blind Spot
Monitor function and Rear Cross Traffic Alert function.
Outside rear view mirror indicators
Blind Spot Monitor function:
When a vehicle is detected in the blind spot, the outside rear view mirror indicator
comes on while the turn signal lever is not operated and the outside rear view mirror
indicator flashes while the turn signal lever is operated.
Rear Cross Traffic Alert function:
When a vehicle approaching from the right or left rear of the vehicle is detected, the
outside rear view mirror indicators flash.
Rear Cross Traffic Alert buzzer (Rear Cross Traffic Alert function only)
When a vehicle approaching from the right or left rear of the vehicle is detected, a
buzzer sounds from behind the rear seat.
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2925-4. Using the radio
IS350/250_U (OM53C50U)
■Reception sensitivity
●Maintaining perfect radio reception at all times is difficult due to the continually chang-
ing position of the antenna, differences in signal strength and surrounding objects, such
as trains, transmitters, etc.
●The radio antenna is mounted inside the rear window. To maintain clear radio reception,
do not attach metallic window tinting or other metallic objects to the antenna wire
mounted inside the rear window.
■XM Radio Services — Descriptions
●Radio and Entertainment
XM offers more than 170 satellite radio channels of commercial-free music and pre-
mier sports, news, talk, and entertainment. XM is broadcast via satellites to millions of
listeners across the continental United States . XM subscribers listen to XM on satellite
radio receivers for the car, home, and portable use. More information about XM is
available online at www.siriusxm.com
(U.S.A.) or www.xmradio.ca (Canada).
●Satellite tuner
The tuner supports only Audio Services (Music and Talk) and the accompanying Text
Information of XM Satellite Radio.
Audio mute condition
when an HD2 /HD3 multi-
cast channel had been
playing.The radio does not have
access to digital signals at
the moment.This is normal behavior,
wait until the digital signal
returns. If out of the cover-
age area, seek a new sta-
tion.
Audio mute delay when
selecting an HD2 /HD3
multicast channel preset.
The digital multicast con-
tent is not available until
HD Radio™ broadcast can
be decoded and make the
audio available. This takes
up to 7 seconds.
This is normal behavior,
wait for the audio to
become available.
Te x t i n f o r m a t i o n d o e s n o t
match the present song
audio.Data service issue at the
radio broadcaster.
Broadcaster should be
notified. Complete the
form: www.ibiquity.com/
automotive/report_radio_station_
experiences.
No text information shown
for the present selected
frequency.Data service issue by the
radio broadcaster.
Broadcaster should be
notified. Complete the
form: www.ibiquity.com/
automotive/report_radio_station_experiences.
ExperienceCauseAction

2945-4. Using the radio
IS350/250_U (OM53C50U)
■If the satellite radio does not operate normally
If a problem occurs with the XM tuner, a message will appear on the screen. Refer to the
table below to identify the problem, and take the suggested corrective action.
Contact the XM Listener Care Center at 1-877-515-3987 (U.S.A.) or 1-877-438-
9677 (Canada).
SAT Check Antenna
The XM antenna is not connected. Check whether the XM
antenna cable is attached securely.
There is a short-circuit in the antenna or the surrounding
antenna cable. See a Lexus certified dealer.
SAT Ch Unautho- rized
You have not subscribed to XM Satellite Radio. The radio is
being updated with the latest encryption code. Contact XM
Satellite Radio for subscription information. When a con-
tract is canceled, you can choose “Ch000” and all free-to-
air channels.
The premium channel you selected is not authorized. Wait
for about 2 seconds until the radio returns to the previous
channel or “Ch001”. If it does not change automatically,
select another channel. To listen to the premium channel,
contact XM Satellite Radio.
SAT No SignalThe XM signal is too weak at the current location. Wait until
your vehicle reaches a location with a stronger signal.
SAT LoadingThe unit is acquiring audio or program information. Wait
until the unit has received the information.
SAT Channel Off AirThe channel you selected is not broadcasting any program-
ming. Select another channel.
-----There is no song/program title or artist name/feature asso-
ciated with the channel at that time. No action is required.
SAT Chan Unavail-
ableThe channel you selected is no longer available. Wait for
about 2 seconds until the radio returns to the previous
channel or “Ch001”. If it does not change automatically,
select another channel.

3145-7. Connecting Bluetooth®
IS350/250_U (OM53C50U)
When you register a phone, auto connection will be activated. Always set it to
this mode and leave the Bluetooth® phone in a place where a connection can be
established.
When the engine switch is turned to ACCESSORY or IGNITION ON mode,
the system will search for a nearby cellular phone you have registered.
Next, the system automatically connects with the most recent phone that was
connected. The connected result is displayed.
When auto connection has failed or “Bluetooth
* Power” is turned off, you must
connect the Bluetooth® device manually.
Go to “Bluetooth
* Setup”: → “Setup” → “Bluetooth*”
Select the device to connect.
Select “Connect All”, “Connect as a Phone” or “Connect as an Audio player”.
If the desired Bluetooth
® device is not displayed, register the device.
( → P. 311)
*: Bluetooth is a registered trademark of Bluetooth SIG, Inc.
■Reconnecting a Bluetooth® phone
If the system cannot connect due to poor signal strength with the engine switch in
ACCESSORY or IGNITION ON mode, the system will automatically attempt to recon-
nect.
If the phone is turned off, the system will no t attempt to reconnect. In this case, the con-
nection must be made manually, or the phone must be reselected.
■Connecting a phone while Bluetooth® audio is playing
●Bluetooth® audio will stop temporarily.
●It may take time to connect.
Connecting a Bluetooth® phone
There are two connecting methods available: automatic and manual.
Auto connection
Manual connection
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4287-3. Do-it-yourself maintenance
IS350/250_U (OM53C50U)
■If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tires as snow tires is lost.
■Situations in which the tire pressure warning system may not operate properly
●In the following cases, the tire pressure warning system may not operate properly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• Lock nuts are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the wheels or wheel housings.
• If the tire inflation pressure is extremely higher than the specified level.
• If tires not equipped with tire pressure warning valves and transmitters are used.
• If the ID code on the tire pressure warning valves and transmitters is not registered in the tire pressure warning computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air-port or other facility that generates st rong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless communication device
If tire position information is not correctl y displayed due to the radio wave conditions,
the display may be corrected by driving and changing the radio wave conditions.
●When the vehicle is parked, the time taken for the warning to start or go off could be
extended.
●When tire inflation pressure declines rapidly for example when a tire has burst, the
warning may not function.
■The initialization operation
●Make sure to carry out initialization af ter adjusting the tire inflation pressure.
Also, make sure the tires are cold before carrying out initialization or tire inflation pres-
sure adjustment.
●If you have accidentally turned the engine switch off during initialization, it is not neces-
sary to press the reset switch again as init ialization will restart automatically when the
engine switch has been turned to IGNITION ON mode for the next time.
●If you accidentally press the reset switch when initialization is not necessary, adjust the
tire inflation pressure to the specified leve l when the tires are cold, and conduct initial-
ization again.