2015 Lexus IS250 ignition

2094-5. Using the driving support systems
4
Driving
IS350/250_U (OM53C50U)
Press the LDA switch to activate the
system.
The LDA indicator and lane lines will
come on.
Press the switch again to turn the LDA
system off.
The LDA system will remain on or off
even if the engine switch is turned to
IGNITION ON mode.
●When the vehicle speed is approximately 32 mph (50 km/h) or more
●When the lane width is more than approximately 8.2 ft. (2.5 m)
●When driving on a straight road or through a curve with a radius of more than
approximately 328 ft. (100 m)
Turning the LDA system on
Operating conditions

2184-5. Using the driving support systems
IS350/250_U (OM53C50U)
You can change the warning beep volume and Lexus Display Audio screen
operating conditions. Press the “MENU” button on the Lexus Display Audio controller. ( P. 2 6 8 )
Select “SETUP” on the “Menu” screen.
Select “Vehicle” on the “Setup” screen.
Select “LEXUS Park Assist” on the “Vehicle Settings” screen.
Select the desired button.
The alert volume can be adjusted.
On or off can be selected for intu-
itive parking assist display.
Front or rear center sensors dis-
play and tone indication can be
set.
■The intuitive parking assist can be operated when
●Front center sensors:
• The engine switch is in IGNITION ON mode.
• The shift lever is in a position other than P or R.
• The vehicle speed is less than about 6 mph (10 km/h).
●Front corner sensors:
• The engine switch is in IGNITION ON mode.
• The shift lever is in a position other than P.
• The vehicle speed is less than about 6 mph (10 km/h).(At any speed when the shift lever is in R)
●Rear corner and rear center sensors:
• The engine switch is in IGNITION ON mode.
• The shift lever is in R.
Setting up intuitive parking assist
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2214-5. Using the driving support systems
4
Driving
IS350/250_U (OM53C50U)
The rear view image is displayed when
the shift position is in R and the engine
switch is in IGNITION ON mode.
The parking assist monitor system will
be deactivated when the shift position is
in any position other than R.
■Screen display
The parking assist monitor screen
will be displayed if the shift position is
shifted to R while the engine switch
is in IGNITION ON mode.Intuitive parking assist display (if
equipped)
If an obstacle is detected while the
intuitive parking assist is on, a display
is shown in the top right corner of the
screen.
Lexus parking assist monitor
: If equipped
The parking assist monitor assists the driv er by displaying an image of the view
behind the vehicle while backing up, for example while parking.
Owners of models equipped with a navi gation system should refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.
The screen illustrations used in this text are intended as examples, and may
differ from the image that is ac tually displayed on the screen.
Using the Lexus parking assist monitor
A

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 Ph one” 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 si gnal strength with the engine switch in
ACCESSORY or IGNITION ON mode, the syst em will automatically attempt to recon-
nect.
If the phone is turned off, the system will not 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 av ailable: automatic and manual.
Auto connection
Manual connection
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3445-11. Bluetooth®
IS350/250_U (OM53C50U)
■Reconnecting the portable audio player
If the portable audio player is disconnected due to poor reception when the engine
switch is in ACCESSORY or IGNITION ON mode, the system automatically recon-
nects the portable audio player.
If you have switched off the portable audio player yourself, follow the instructions below
to reconnect:
●Select the portable audio player again
●Enter the portable audio player
■When you sell your car
Be sure to delete your personal data. ( P. 2 7 8 )
CAUTION
■While driving
Do not operate the portable audio player, cellular phone or connect a device to the
Bluetooth
® system.
■Caution regarding interference with electronic devices
●Your audio unit is fitted with Bluetooth® antennas. People with implantable cardiac
pacemakers, cardiac resynchronization ther apy-pacemakers or implantable cardio-
verter defibrillators should maintain a re asonable distance between themselves and
the Bluetooth
® antennas. The radio waves may affect the operation of such devices.
●Before using Bluetooth® devices, users of any electrical medical device other than
implantable cardiac pacemakers, cardiac resynchronization therapy-pacemakers or
implantable cardioverter defibrillators shou ld consult the manufacturer of the device
for information about its operation under the influence of radio waves. Radio waves
could have unexpected effects on th e operation of such medical devices.
NOTICE
■When leaving the vehicle
Do not leave your portable audio player or cellular phone in the vehicle. The inside of
the vehicle may become hot, causing damage to the portable audio player or cellular
phone.

3646-1. Using the air conditioning system
IS350/250_U (OM53C50U)
■Using automatic mode
Fan speed is adjusted automatically accordin g to the temperature setting and the ambi-
ent conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow immediately
after is pressed or “AUTO” is selected.
■Using the voice command system (veh icles with a navigation system)
Air conditioning system can be operated usin g voice commands. For details, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.
■Fogging up of the windows
The windows will easily fog up when the humidity in the vehicle is high. Turning
(“A/C”) on will dehumidify the air from the outlets and defog the windshield effectively.
●If you turn (“A/C”) off, the windows may fog up more easily.
●The windows may fog up if the recirculated air mode is used.
■Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set the outside/recircu-
lated air mode button to the recirculated ai r mode. This is effective in preventing out-
side air from entering the vehicle interior. During cooling operation, setting the
recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may automati cally switch depending on the tempera-
ture setting or the inside temperature.
■When the outside temperature exceeds 75 F (24 C) and the air conditioning system
is on
●In order to reduce the air conditioning po wer consumption, the air conditioning system
may switch to recirculated air mode automa tically. This may also reduce fuel consump-
tion.
●Recirculated air mode is selected as a default mode when the engine switch is turned to
IGNITION ON mode.
●It is possible to switch to outside air mode at any time by pressing .
■Operation of the air conditioning system in Eco drive mode
In Eco drive mode, the air conditioning system is controlled as follows to prioritize fuel
efficiency:
●Engine speed and compressor operation controlled to restrict heating/cooling capac-
ity
●Fan speed restricted when automatic mode is selected
To improve air conditioning performance, perform the following operations:
●Adjust the fan speed
●Turn off Eco drive mode

3676-1. Using the air conditioning system
6
Interior features
IS350/250_U (OM53C50U)
●The heated steering wheel can be used when the engine switch is in IGNITION ON
mode.
●The heated steering wheel will automatically turn off after about 30 minutes.
Each time the switch is pressed, the
intensity of the seat heater changes and
the level indicator lights (amber) light
as follows:
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  Off
■The seat heaters can be used when
The engine switch is in IGNITION ON mode.
■Seat heater timer control
To enable seat heater timer control, press and hold the driver and front passenger seat
heater switches at the same time until a buzzer sounds once. If a seat heater is turned on
while seat heater timer control is enabled, the intensity of the seat heater will automati-
cally change from Hi Mid Lo.
The timing of the change in seat heater intensity differs depending on the temperature
inside the cabin, etc. when the seat heater is operating.
To disable seat heater timer control, press and hold the driver and front passenger seat
heater switches at the same time until a buzzer sounds twice.
Each time the switch is pressed, the
intensity of the seat ventilator changes
and the level indicator lights (green)
light as follows:
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  Off
The seat ventilators can be used when the engine switch is in IGNITION ON mode.
Seat heaters
Type A Type B
Seat ventilators

3716-3. Using the storage features
6
Interior features
IS350/250_U (OM53C50U)
Open (press the button)
Unlock with the mechanical key
Lock with the mechanical key
●The glove box light turns on when the engine switch is in ACCESSORY or IGNITION
ON mode.
●The trunk opener main switch is located in the glove box. ( P. 1 1 0 )
Push the knob.
Lift by hand to fully open the console
box.
Glove box
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●The insert inside the glove box can be
removed.
Console box