steering Lexus IS250 2014 Service Manual

2634-5. Using the driving support systems
4
Driving
IS250_EE(OM53C51E)
Normal mode
For normal driving.
Press the switch to change the driving mode to normal mode when selected to Eco
drive mode or sport mode.
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips that
involve frequent accelerating.
When not in Eco drive mode and the driving mode select switch is turned to the left,
the Eco drive mode indicator comes on.
Sport mode
Assists acceleration response by controlling the transmission and steering.
Suitable for when precise handling is desirable, for example when driving on
mountain roads.
When not in sport mode and the driving mode select switch is turned to the right, the
“SPORT” indicator comes on.
Driving mode select switch
The driving modes can be selected to suit driving condition.
Except
F SPORT modelsF SPORT
models
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2654-5. Using the driving support systems
4
Driving
IS250_EE(OM53C51E)
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if the
brakes are applied while driving on a slippery road surface
◆Brake assist
Generates an increased level of braking force after the brake pedal is
depressed when the system detects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning on
slippery road surfaces
◆VSC+ (Vehicle Stability Control+)
Provides cooperative control of the ABS, TRC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery road sur-
faces by controlling steering performance.
◆TRC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from spinning
when starting the vehicle or accelerating on slippery roads
◆Hill-start assist control
Prevents the vehicle from rolling backward when starting on an incline or slip-
pery slope
◆EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn the
steering wheel
Driving assist systems
To help enhance driving safety and performance, the following systems oper-
ate automatically in response to various driving situations. Be aware, however,
that these systems are supplementary and should not be relied upon too
heavily when operating the vehicle.

2684-5. Using the driving support systems
IS250_EE(OM53C51E)
■When the battery is disconnected
The steering wheel may move from its straight forward position, but this will be corrected
automatically when driving.
■Sounds and vibrations caused by the ABS, brake assist, TRC, VSC and hill-start assist
control systems
●A sound may be heard from the engine compartment when the brake pedal is
depressed repeatedly, when the engine is started or just after the vehicle begins to
move. This sound does not indicate that a malfunction has occurred in any of these sys-
tems.
●Any of the following conditions may occur when the above systems are operating.
None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.
■EPS operation sound
When the steering wheel is operated, a motor sound may be heard. This does not indi-
cate a malfunction.
■Reactivation of the TRC/VSC systems
Even after the TRC/VSC systems have been turned off, turning the engine off and then
on again will automatically reactivate the TRC/VSC systems.
■Reactivation of the TRC system linked to vehicle speed
When only the TRC system is turned off, the TRC system will turn on when vehicle speed
increases. However, when both TRC and VSC systems are turned off, the systems will
not turn on even when vehicle speed increases.
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from overheating
when there is frequent steering input over an extended period of time. The steering
wheel may feel heavy as a result. Should this occur, refrain from excessive steering input
or stop the vehicle and turn the engine off. The EPS system should return to normal
within 10 minutes.

2904-6. Driving tips
IS250_EE(OM53C51E)
CAUTION
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehicle control and cause death or serious injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive at speeds in excess of the speed limit or the speed limit specified for the
snow tires being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains (except vehicles with 18-inch tires)
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used, or 50
km/h (30 mph), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting operations
that cause sudden engine braking.
●Slow down sufficiently before entering a curve to ensure that vehicle control is main-
tained.
●Do not use LDA (Lane Departure Alert) system.
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow tires from Lexus dealers or legitimate tire
retailers.
This is because the removal and attachment of snow tires affects the operation of the
tire pressure warning valves and transmitters.
■Fitting tire chains (except vehicles with 18-inch tires)
The tire pressure warning valves and transmitters may not function correctly when tire
chains are fitted.

292
IS250_EE(OM53C51E)
5-1. Basic Operations
Lexus Display Audio
System ......................................... 294
Steering wheel audio
switches...................................... 300
USB/AUX ports .......................... 301
5-2. Setup
Setup menu ..................................302
General settings.........................303
Voice settings ..............................306
Display settings ........................... 307
5-3. Using the audio system
Selecting the audio
source ......................................... 308
Optimal use of the audio
system ..........................................309
Audio settings .............................. 310
Audio menu screen
operation ..................................... 314
5-4. Using the radio
Radio operation ............................317
5-5. Playing an audio CD and
MP3/WMA/AAC discs
CD player operation ................. 319

293
5
Lexus Display
Audio system
IS250_EE(OM53C51E)
5-6. Using an external device
Listening to an iPod ................... 326
Using USB memory
device ...........................................329
Using the AUX port..................334
5-7. Connecting Bluetooth
®
Steps for using Bluetooth®
devices.........................................335
Registering a Bluetooth
®
device ........................................... 337
Selecting a Bluetooth
®
device .......................................... 338
Connecting a Bluetooth
®
audio player ...............................339
Connecting a Bluetooth
®
phone .......................................... 340
Displaying a Bluetooth
®
device details ............................. 341
Detailed Bluetooth
®
settings......................................... 342
5-8. Bluetooth
® Audio
Listening to Bluetooth
®
Audio............................................3435-9. Bluetooth
® Phone
Using a Bluetooth
®
Phone........................................... 345
Making a call................................ 347
Receiving a call ...........................350
Speaking on the phone .............351
Using a Bluetooth
® phone
messages.................................... 353
Using the steering wheel
switches....................................... 356
Bluetooth
® phone
settings ........................................ 357
5-10. Phonebook
Contact settings ......................... 359
Messaging setting...................... 362
5-11. Bluetooth
®
Bluetooth®.................................. 363
5-12. Other function
“Information” screen .................368
MirrorLink................................ 369
USB photo ...................................... 371
Speech command system ...... 373

3005-1. Basic Operations
IS250_EE(OM53C51E)
Volume switch
• Increases/decreases volume
• Press and hold: Continuously
increases/decreases volume
Radio mode:
• Press (except manual mode):
Select a radio station
• Press (manual mode): Seek up/
down
• Press and hold (manual mode): Continuously seek up/down
CD, MP3/WMA/AAC disc, Bluetooth
®, iPod or USB mode:
• Press: Select a track/file/song/video
• Press and hold: Select a folder/album (MP3/WMA/AAC disc or USB)
“MODE” switch
• Turns the power on, selects audio source
• Press and hold this switch to mute or pause the current operation. To can-
cel the mute or pause, press and hold.
Steering wheel audio switches
Some audio features can be controlled using the switches on the steering
wheel.
Operation may differ depending on the type of audio system or navigation
system. For details, refer to the manual provided with the audio system or nav-
igation system.
Operating the audio system using the steering wheel switches
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2
CAUTION
■To reduce the risk of an accident
Exercise care when operating the audio switches on the steering wheel.
3

308
IS250_EE(OM53C51E)5-3. Using the audio system
Press the button to display the “Source” screen.
If the “Source” screen is not displayed, press the button again.
Select the desired audio source.
The audio source can be selected by pressing the “RADIO” or “MEDIA” button.
Press the “MODE” switch when the audio system is turned on. The audio source
changes each time the “MODE” switch is pressed.
■Rearranging the list
The listing order of the source list can be rearranged.
Move the controller to the left while on the “Source” screen.
Select “Audio source select”.
Select an item you wish to move and then select where to move the item to.
Selecting the audio source
Switching between audio sources such as radio and CD are explained in this
section.
Changing audio source
Using the steering wheel switches to change audio sources
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2
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345
5
Lexus Display Audio system
IS250_EE(OM53C51E)5-9. Bluetooth
® Phone
Before making a phone call, check the connection status, battery charge, call
area and signal strength. (
→P. 3 4 6 )
If a Bluetooth
® device cannot be connected, check the connection status. If the
device is not connected, either register or reconnect it. (
→P. 3 3 8 , 3 4 0 )
To display the screen shown below, press the switch on the steering wheel or
select “Telephone” on the “MENU” screen.
Phone name
Bluetooth
® connection status
(
→P. 3 4 6 )
Display the call history screen
(
→P. 3 4 9 )
Display the favorites screen
(
→P. 3 4 9 )
Display the contacts screen
(
→P. 3 4 7 )
Display the dial pad screen (
→P. 3 4 7 )
Display the message inbox screen (
→P. 3 5 3 )
Using a Bluetooth® Phone
The hands-free system is a function that allows you to use your cellular phone
without touching it.
This system supports Bluetooth
®. Bluetooth® is a wireless data system that
allows the cellular phone to wirelessly connect to the hands-free system and
make/receive calls.
Phone top screen
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3475-9. Bluetooth® Phone
5
Lexus Display Audio system
IS250_EE(OM53C51E)
Go to “Dial pad”: → “Telephone” → “Dial pad”
Input a phone number. (→P. 2 9 8 )
Press the switch on the steering wheel or select .
You can dial a number from the phonebook data imported from your cellular
phone. The system has one phonebook for each registered telephone. Up to
2500 contacts may be stored in each phonebook. (→P. 3 4 8 )
Go to “Contacts”: → “Telephone” → “Contacts”
Choose the desired contact to call from the list.
Choose the number and then press the switch on the steering wheel or
select the number.
Making a call
Once a Bluetooth® phone is registered, you can make a call using the follow-
ing procedure:
Dialing
Dialing from the phonebook
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