wheel Lexus IS250 2014 Service Manual

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.

2704-5. Using the driving support systems
IS250_EE(OM53C51E)
CAUTION
■The ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as excessively
worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on wet or slick roads.
■Stopping distance when the ABS is operating may exceed that of normal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always maintain a
safe distance from the vehicle in front of you, especially in the following situations:
●When driving on dirt, gravel or snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or uneven surfaces
■TRC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRC system is operating.
Drive the vehicle carefully in conditions where stability and power may be lost.
■Hill- start assist control does not operate effectively when
●Do not overly rely on hill-start assist control. Hill-start assist control may not operate
effectively on steep inclines and roads covered with ice.
●Unlike the parking brake, hill-start assist control is not intended to hold the vehicle
stationary for an extended period of time. Do not attempt to use hill-start assist con-
trol to hold the vehicle on an incline, as doing so may lead to an accident.
■When the VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may cause an
accident. Exercise particular care when the indicator light flashes.
■When the TRC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road conditions. As these
are the systems to help ensure vehicle stability and driving force, do not turn the TRC/
VSC systems off unless necessary.
■Replacing tires
Make sure that all tires are of the specified size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire infla-
tion pressure level.
The ABS, TRC and VSC systems will not function correctly if different tires are installed
on the vehicle.
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional for further information when replacing tires or wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or modifying the suspension will affect the driving
assist systems, and may cause a system to malfunction.

2894-6. Driving tips
4
Driving
IS250_EE(OM53C51E)
Park the vehicle and move the shift lever to P without setting the parking brake.
The parking brake may freeze up, preventing it from being released. If necessary,
block the wheels to prevent inadvertent sliding or creeping.
XExcept vehicles with 18-inch tires
Use the correct tire chain size when mounting the tire chains.
Chain size is regulated for each tire size.
Side chain
(3 mm [0.12 in.] in diameter)
Cross chain
(4 mm [0.16 in.] in diameter)
XVehicles with 18-inch tires
Tire chains cannot be mounted on the 18-inch tires.
Snow tires should be used instead.
Regulations regarding the use of tire chains vary depending on location and type
of road. Always check local regulations before installing chains.
■Tire chain installation
Observe the following precautions when installing and removing chains:
●Install and remove tire chains in a safe location.
●Install tire chains on the rear tires. Do not install tire chains on the front tires.
●Install tire chains on rear tires as tightly as possible. Retighten chains after driving 0.5
 1.0 km (1 /4  1 /2 mile).
●Install tire chains following the instructions provided with the tire chains.
When parking the vehicle
Selecting tire chains
1
2
Regulations on the use of tire chains

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
1
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
1
2
1
2
3

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
1
2
3
4
5
6
7

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
1
2
3
1
2
3