wheel Lexus GS350 2013 Service Manual

GS350_U (OM30C34U)
2734-5. Using the driving support systems
4
Driving
■Reactivation of the TRAC system linked to vehicle speed
When only the TRAC system is turned off, the TRAC system will turn on when vehi-
cle speed increases. However, when both TRAC/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 overheat-
ing when there is frequent steering input over an extended period of time. The steer-
ing 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 effectiveness will
improve after a short while.
*: If the LKA (Lane-Keeping Assist) system cannot operate in this case, a warning
message will be shown on the multi-information display.

GS350_U (OM30C34U)
2754-5. Using the driving support systems
4
Driving
CAUTION
■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
inflation pressure level.
The ABS, TRAC and VSC systems will not function correctly if different tires are
installed on the vehicle.
Contact your Lexus dealer 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.

GS350_U (OM30C34U)
2794-5. Using the driving support systems
4
Driving
◆Suspension control (if equipped)
When the system determines that a collision is unavoidable, the opera-
tion of AVS (→P. 269) optimally controls the damping force of the
shock absorber.
◆Steering control (if equipped)
XVehicles with VGRS
There is a high possibility of collision and if the steering wheel is oper-
ated, the steering gear ratio is changed by VGRS to help improve the
response to steering input.
XVehicles with LDH
There is a high possibility of collision and if the steering wheel is oper-
ated, the steering angles of the front and rear wheels and the heaviness
of the steering wheel are controlled by LDH, thus heightening respon-
siveness in response to the steering operation.
◆Driver monitor sy stem (if equipped)
When the system determines that there is a possibility of a collision, and
either the driver is not facing forward or the driver’s eyes are closed,
PCS warnings are given in advance to warn the driver. If the system
determines that the conditions to operate pre-collision alert braking
have been met even when the possibility of a collision increases further,
pre-collision alert braking will operate.

GS350_U (OM30C34U)
2994-6. Driving tips
4
Driving
Perform the following according to the driving conditions:
●Do not try to forcibly open a window or move a wiper that is frozen.
Pour warm water over the frozen area to melt the ice. Wipe away the
water immediately to prevent it from freezing.
●To ensure proper operation of the climate control system fan, remove
any snow that has accumulated on the air inlet vents in front of the wind-
shield.
●Check for and remove any excess ice or snow that may have accumu-
lated on the exterior lights, vehicle’s roof, chassis, around the tires or on
the brakes.
●Remove any snow or mud from the bottom of your shoes before getting
in the vehicle.
Accelerate the vehicle slowly, keep a safe distance between you and the
vehicle ahead, and drive at a reduced speed suitable to road conditions.
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.
Before driving the vehicle
When driving the vehicle
When parking the vehicle

302
GS350_U (OM30C34U)
4-6. Driving tips
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 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 (vehicles with front and rear tires of the same size except
for the vehicles with LDH and 19 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 30 mph (50 km/h), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steering, as well as sudden braking and shift-
ing operation to engine braking.
●Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.
●Do not use LKA (Lane-Keeping Assist) system.

305
GS350_U (OM30C34U)
Interior features5
5-3. Using the audio system Audio system type ..................... 367
Using the radio ........................... 390
Using the CD/DVD player ..... 412
Playing an audio CD and MP3 /WMA discs ........... 414
Playing DVD video ....................420
CD/DVD player and DVD video disc information ...........432
Listening to Bluetooth
® audio....................444
Listening to a USB memory.........................454
Listening to an iPod ...................464
Optimal use of the audio/video system .......... 474
Using the AUX port...................476
Using the rear seat audio controls ........................... 477
Using the steering wheel audio switches ..........................482
5-4. Using the hands-free phone system (for cellular phone)
Hands-free system (for cellular phone) ................ 485
Using a Bluetooth
® phone .... 493
Setting the hands-free system (for cellular phone) .................. 512
Setting the Bluetooth
®............535 5-5. Using the interior lights
Interior lights list .........................548• Interior light ............................ 549
• Personal lights ....................... 549
5-6. Using the storage features List of storage features ............. 551• Glove box ............................... 553
• Console box........................... 554
• Cup holders ........................... 555
• Auxiliary boxes ..................... 557
Trunk features ..............................558
5-7. Other interior features Sun visors and vanity mirrors .....................561
Clock............................................... 562
Ashtrays ......................................... 563
Power outlets ............................... 564
Heated steering wheel ............ 566
Seat heaters/ seat ventilators .........................568
Armrest ............................................571
Rear sunshade/ rear door sunshades .............. 572
Trunk storage extension .......... 575
Coat hooks ....................................576
Assist grip.......................................577
Utility hook.................................... 578
Garage door opener................ 579
Safety Connect ...........................586

GS350_U (OM30C34U)
3695-3. Using the audio system
5
Interior featuresPress to operate the voice
command system. (→P. 3 3 4 /
“Navigation System Owner’s Man-
ual”)
Ti t l ePa g e
Using the radioP. 3 9 0
Using the CD/DVD playerP. 4 1 2
Playing an audio CD and MP3/WMA discsP. 4 1 4
Playing DVD videoP. 4 2 0
CD/DVD player and DVD video disc informationP. 4 3 2
Listening to Bluetooth® audioP. 4 4 4
Listening to a USB memoryP. 4 5 4
Listening to an iPodP. 4 6 4
Optimal use of the audio/video systemP. 4 74
Using the AUX portP. 4 76
Using the steering wheel audio switchesP. 4 8 2
Using the voice command system

482
GS350_U (OM30C34U)
5-3. Using the audio system
Using the steering wheel audio switches
Radio mode: Selects a radio sta-tion
Audio CD mode: Selects a track
MP3/WMA disc mode: Selects a file and
folder
DVD mode: Selects a chapter
Bluetooth
® audio mode: Selects a track and
album
iPod mode: Selects a track
USB memory mode: Selects a file and
folder
Vo l u m e
Turns the power on, selects audio
source
Some audio features can be controll ed using the switches on the steer-
ing wheel.
1
2
3

484
GS350_U (OM30C34U)
5-3. Using the audio system
Press to select the audio CD, MP3/WMA disc, DVD, Blue-
tooth
® audio, iPod, or USB memory mode.
Press or to select.
To return to the beginning of the current track, file or chapter, press the
switch once quickly.
Press to select Bluetooth® audio or USB memory mode.
Press and hold or until a beep is heard to select.
Press to select the MP3/W MA disc or USB memory mode.
Press and hold or until a beep is heard to select.
Selecting a track/file or chapter
Selecting an album
Selecting a folder
CAUTION
■To reduce the risk of an accident
Exercise care when operating the audio switches on the steering wheel.
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2
1
2
1
2

493
GS350_U (OM30C34U)5-4. Using the hands-free phone system (for cellular phone)
5
Interior features
Using a Bluetooth® phone
Device name
Bluetooth
® connection status
Character deletion
Make a call
To display the screen shown above, press the “MENU” button on the
Remote Touch, then select “Phone” or press on the steering wheel.
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2
3
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