steering Lexus IS350 2017 / LEXUS 2017 IS200T,IS300,IS350 (OM53D76U) Repair Manual

2894-5. Using the driving support systems
4
Driving
IS350/300/200t_U (OM53D76U)
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if the
brakes are applied while drivin g on a slippery road surface
◆Brake assist
Generates an increased level of br aking force after the brake pedal is
depressed when the system detects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to contro l skidding when swerving suddenly or turning on
slippery road surfaces.
◆Enhanced VSC (Enhanced Vehicle Stability Control)
Provides cooperative control of the ABS, TRAC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery road sur-
faces by controlling steering performance.
◆TRAC (Traction Control)
Helps to maintain drive power and pr event the drive wheels from spinning
when starting the vehicle or accelerating on slippery roads
◆Hill-start assist control
Helps to reduce the backward movement of the vehicle when starting on an
uphill
Driving assist systems
To help enhance driving safety and perf ormance, the following systems oper-
ate automatically in response to variou s driving situations. Be aware, however,
that these systems are supplementary and should not be relied upon too heav-
ily when operating the vehicle.

2904-5. Using the driving support systems
IS350/300/200t_U (OM53D76U)
◆EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn the
steering wheel.
◆Adaptive Variable Suspension system (if equipped)
Controls the damping force of the shock absorber of each wheel according to
the road and driving conditions, helpin g achieve a comfortable ride, excellent
driveability and a high level of stability.
If SPORT S+ mode is selected using the driving mode select switch, the
damping force will become more suitable for sporty driving.( →P. 286)
◆VDIM (Vehicle Dynamics Integrated Management)
Provides integrated control of the ABS, brake assist, TRAC, VSC, hill-start
assist control, and EPS systems
Helps to maintain vehicle stability when swerving on slippery road surfaces by
controlling the brakes and engine output
The slip indicator light will flash while
the TRAC/VSC systems are operating.
When the TRAC/VSC systems are operating

2924-5. Using the driving support systems
IS350/300/200t_U (OM53D76U)
■Operating conditions of hill-start assist control
When the following four conditions are met, the hill-start assist control will operate:
●The shift lever is in a position other than P or N (when starting off forward/backward on
an upward incline)
●The vehicle is stopped
●The accelerator pedal is not depressed
●The parking brake is not engaged
■Automatic system cancelation of hill-start assist control
The hill-start assist control will turn off in any of the following situations:
●The shift lever is shifted to P or N
●The accelerator pedal is depressed
●The parking brake is engaged
●Approximately 2 seconds elapse af ter the brake pedal is released
■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, VSC, TRAC 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 also after the vehicle comes to a stop.
• The brake pedal may pulsate slig htly after the ABS is activated.
• The brake pedal may move down s lightly after the ABS is activated.
■EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be heard.
This does not indicate a malfunction.
■Automatic reactivation of TRAC and VSC systems
After turning the TRAC and VSC systems off, the systems will be automatically re-
enabled in the following situations:
●When the engine swit ch is turned off
●If only the TRAC system is turned off, the TRAC will turn on when vehicle speed
increases
If both the TRAC and VSC systems are turned off, automatic re-enabling will not occur
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.

2964-6. Driving tips
IS350/300/200t_U (OM53D76U)
Regulations regarding the use of tire chains vary depending on location and type
of road. Always check local regu lations 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 1/4
⎯ 1/2 mile (0.5 ⎯ 1.0 km).
●Install tire chains following the instru ctions provided with the tire chains.
Regulations on the use of tire chains
WARNING
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehi cle control and cause death or serious injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive in excess of 75 mph (120 km/h ), regardless of the type of snow tires
being used.
●Use snow tires on all, not just some wheels.
●Do not use LKA (Lane Keeping Assist) system.
■Driving with tire chains (excep t 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 ti re chains being used, or 30
mph (50 km/h), 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 cu rve to ensure that vehicle control is main-
tained.

298
IS350/300/200t_U (OM53D76U)
5-1. Basic Operations Lexus Display Audio system ......................................... 300
Steering wheel audio switches.......................................306
Mobile Assistant......................... 307
USB/AUX ports ........................309
5-2. Setup Setup menu ................................... 312
General settings .......................... 313
Voice settings ............................... 316
Display settings .............................317
5-3. Using the audio system Selecting the au dio source ..... 318
Optimal use of the audio system ........................................... 319
Audio settings .............................320
Audio menu screen operation .................................... 323
5-4. Using the radio Radio operation.......................... 326
Lexus DisplayAudio system
5

299
Lexus DisplayAudio system
5
IS350/300/200t_U (OM53D76U)
5-5. Playing an audio CD and MP3/WMA/AAC discs
CD player operation ................332
5-6. Using an external device Listening to an iPod ...................339
Using USB memory device...........................................343
Using the AUX port ................. 347
5-7. Connecting Bluetooth
®
Steps for using Bluetooth®
devices ........................................ 348
Registering a Bluetooth
®
device.......................................... 350
Selecting a Bluetooth
®
device............................................ 351
Connecting a Bluetooth
®
audio player ...............................352
Connecting a Bluetooth
®
phone .......................................... 353
Displaying a Bluetooth
®
device details ............................354
Detailed Bluetooth
®
settings........................................ 355
5-8. Bluetooth
® Audio
Listening to Bluetooth
®
Audio........................................... 358 5-9. Bluetooth
® Phone
Using a Bluetooth
®
Phone ...........................................359
Making a call ................................. 361
Receiving a call ........................... 364
Speaking on the phone............365
Using a Bluetooth
®
phone message........................ 367
Using the steering wheel switches....................................... 369
Bluetooth
® phone
settings ........................................ 370
5-10. Phonebook Contact settings ......................... 372
Messaging setting...................... 375
5-11. Bluetooth
®
What to do if... (Troubleshooting)................... 376
Bluetooth
®.................................. 380
5-12. Other function “Information” screen.................385
USB photo .................................... 387
Weather information................389
Voice command system .........390

3065-1. Basic Operations
IS350/300/200t_U (OM53D76U)
Volume switch • Increases/decreases volume
• Press and hold: Continuously increases/decreases volume
Radio mode: • Press: Select a radio station
• Press and hold: Seek up/down
CD, MP3/WMA/AAC disc, Bluetooth
®, iPod or USB mode:
• Press: Select a track/file/video
• Press and hold: Quickly move up/dow n through tracks/files/videos. (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 th e type of audio system or navigation
system. For details, refer to the manual provided with the audio system or nav-
igation system.
Depending on the type of audio source , certain functions may not be avail-
able.
Operating the audio system us ing the steering wheel switches
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WARNING
■To reduce the risk of an accident
Exercise care when operating the audio switches on the steering wheel.
3

3075-1. Basic Operations
5
Lexus Display Audio system
IS350/300/200t_U (OM53D76U)
Press and hold the off hook switch
until you hear the beeps that indicate
the system is listening.
The Mobile Assistant can be used
only when the neighboring screen is
displayed.
To cancel the Mobile Assistant, select
“Cancel”, or press and hold the off hook
switch.
To restart the Mobile Assistant for addi-
tional commands, press the off hook
switch. Mobile Assistant can only be
restarted after the sy stem responds to a
voice command. After some phone and
music commands, the Mobile Assistant
feature will automatically end to com-
plete the requested action.
Mobile Assistant
The Mobile Assistant feature will activate Apple’s Siri Eyes Free mode via
the steering wheel switches. To operate the Mobile Assistant, a compatible
cellular phone must be registered and connected to this system via
Bluetooth
. ( → P. 348)
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3085-1. Basic Operations
IS350/300/200t_U (OM53D76U)
■Adjusting the volume
The volume of the Mobile Assist ant can be adjusted using the
“PWR·VOL” knob or
steering wheel volume switch es. The Mobile Assistant and phone call volumes are syn-
chronized.
■Microphone
It is not necessary to speak directly into the microphone when using the Mobile Assis-
tant.
●Wait for the listening beeps before using the Mobile Assistant.
●The Mobile Assistant may not recognize commands in the following situations:
• When spoken too quickly.
• When spoken at a low or high volume.
• When the roof or windows are open.
• When passengers are talking while th e Mobile Assistant is being used.
• When the air conditioning syst em’s fan speed is set high.
• When the air conditioning vents are turned toward the microphone.
■Mobile Assistant precautions
●The available features and functions may vary based on the iOS version installed on the
connected device.
●Some Siri features are limited in Eyes Free mode. If you attempt to use an unavailable
function, Siri will inform you that the function is not available.
●If Siri is not enabled on the ce llular phone connected via Bluetooth, an error message
will be displayed on the screen.
●While a phone call is active, the Mobile Assistant cannot be used.
●If using the navigation feature of the cellular phone, ensure the active audio source is
Bluetooth audio or iPod in order to hear turn by turn direction prompts.

318
IS350/300/200t_U (OM53D76U)5-3. Using the audio system
Press the “AUDIO” 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 sour ce 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 th en select where to move the item to.
Selecting the audio source
Switching between audio sources, such as the radio and CD, is explained in
this section.
Changing audio source
Using the steering wheel switches to change audio sources
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