engine Lexus GS350 2007 Using the front audio system / LEXUS 2007 GS430/350 (OM30A04U) Workshop Manual

160
2-4. Using other driving systems
When the VSC/TRAC/hill-start assist control systems are operating
If the vehicle is in danger of slip-
ping, rolling backwards when
star

ting on an incli ne, or if the rear
wheels (2WD models) or all
wheels (4WD models) spin, the
slip indicator light flashes to indi-
cate that the VSC/TRAC/hill-start
as
sist control systems have been
engaged.
A buzzer (intermittent) sounds to
indicate that VSC is operating.
The stop lights and high mounted
stoplight turn on when the hill-star
t
assist control system is operating.
GS430: The slip indicator light
flashes as w
ell when ABS is operat -
ing.
■VDIM (Vehicle Dynamics Integ rated Management) (GS430)
Provides integrated control of the AB S, VSC, TRAC, hill-start assist con-
trol, VGRS and EPS systems. 
Maintains vehicle stability when swerving on slippery road surfaces by
contr
olling the brakes, engine output, and the movement of the front
wheels.
■ PCS (Pre-Collision System) (if equipped)
 P. 1 6 5

161
2-4. Using other driving systems
2
When driving
To disable TRAC and/or VSC
If the vehicle gets stuck in fresh snow or mud, TRAC and VSC may
reduce power from the engine to the wheels. You may need to turn the
system off to enable you to rock the vehicle in order to free it.
■ T
urning off TRAC only
Quickly push and release the but-
ton to turn off TRAC.
The slip indicator light should come
on.
Push the button again to turn the
sy
stem back on.
■ Turning off both TRAC and VSC
Push and hold the button for more
than 3 seconds while the v
ehicle is
stopped to turn off TRAC and
VSC.
The slip and VSC OFF indicator
light should come on.
Push the button again to turn the
sy
stem back on.

162
2-4. Using other driving systems
■Automatic reactivation of TRAC and VSC
Turning the engine switch OFF after turning of
f the TRAC and VSC systems will
automatically re-enable them.
■Automatic TRAC reactivation
If only the TRAC system is turned off, th e
TRAC system will turn on when the vehi-
cle speed increases.
■Automatic TRAC and VSC reactivation
If only the both TRAC and VSC systems are tur
ned off, the systems will not turn on
even when the vehicle speed increases.
■Sounds and vibrations caused by the ABS, BA, VSC, TRAC, hill-start assist con-
trol and VGRS systems
●A sound may be heard from the engine compartment 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 systems.
●Any of the following conditions may occur when the above systems are operat -
ing. 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 af
ter the ABS is activated.
■Hill-start assist control is operational when
●The shift lever is in the “D” or “S” position.
●The brake pedal is not depressed.
■VGRS is disabled in the following situations (GS430)
●During stopping or the steering wheel has been moved for a long time while
driving at lower speeds.
●After the engine is restarted at less than -22°F (-30°C).
■Reduced effectiveness of EPS
The effectiveness of EPS is reduced to prevent the system from overheating when
th
ere 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. Th e system should return to normal within
10 minutes.

172
2-5. Driving information
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that ar
e appropriate to the prevailing outside tempera -
tures.
• Engine oil
• Engine coolant
• Washer fluid
● Ha
ve a service technician inspect th e level and specific gravity of
battery electrolyte.
● Ha
ve the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the same si ze and brand, and that chains match
the size of the tires.

181
3-1. Using the touch screen
3
Interior features
The initial screen
If the engine switch is set to “ACC” or
“IG-ON” mode, the initializing screen
will be displayed for a few seconds as
the system starts up.
SwitchesPa g e
“CLIMATE”P. 1 9 0
“A U D I O ”P. 1 9 9
“INFO” (Displaying the “Informa-
tion” screen)P. 1 8 0
“DISP” (Adjusting the display)P. 1 8 5
Trip Information. (Displaying the
“Trip Information” screen)P. 1 8 2
MaintenanceNavigation System Owner's Manual
Te l e p h o n eP. 2 6 7
CalendarNavigation System Owner's Manual
“LEXUS Park Assist”P. 1 5 0
LanguageP. 1 8 4
Screen SettingP. 1 8 7
Adjust ClockP. 3 1 8 /
Navigation System Owner's Manual

182
3-1. Using the touch screen
Trip information
Trip information such as driving time, driving distance, average vehicle
speed, fuel consumption, etc. can be displayed on the screen. The dis-
played figure is for general informati on and may not alw
ays reflect pre-
cise and actual conditions.
■ Displaying the scr
een
Press .
To u c h on the “Information” screen.
●Consumption
• After Refueling
Displays the average fuel consumpt ion since the v
ehicle was last refu-
eled.
• Cruising Range
Displays the estimated maximum distan ce that can be driv
en with the
quantity of fuel remaining.
● Cruise
• Average Speed
Displays the average vehicle speed since the engine w
as started or the
function was reset.
STEP1
STEP2

183
3-1. Using the touch screen
3
Interior features
•Distance
Displays the total distance since the engine w
as stared or the function
was reset.
■ R
esetting the data
To u c h i n g will reset the “Average Speed” and “Distance”.
■To avoid damaging the touch screen
●Touch the screen lightly with your finger. If there is no response, remove your fin -
ger from the screen and try again.
●Remove any dirt on the screen by wiping with a soft cloth. Do not use detergent.
■When using the touch screen
●If the screen is cold, the display may be dark, or the system may seem to be
operating slightly slower than normal.
●The screen may seem dark and hard to see when viewed through sunglasses.
Change your angle of viewing, or remove your sunglasses.

197
3-2. Using the air conditioning system and defogger
3
Interior features
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The differ-
ence between the temperature of the outs ide air and that of the windshield can
cause the outer surface of the windshield to fog up, blocking your vision.
NOTICE
■To prevent battery discharge
Do not leave the automatic air conditioning system on longer than necessary when
the engine is not running.

198
3-2. Using the air conditioning system and defogger
Rear window and outside rear view mirror defoggers
■Operating conditions
The engine switch must be in the “IG-ON” mode.
CAUTION
■When the outside rear view mirror defoggers are on
Do not touch the rear view mirror surfaces , as they can become very hot and burn
you.
NOTICE
■To prevent battery discharge
Turn the defoggers off when the engine is not running.
These features are used to defog the rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
Press the button.
Press the button to turn on the
rear window and outside rear
view mirror defoggers. The
defoggers will automatically
turn off after approximately 15
minutes. Pressing the button
again also turns the defoggers
off.

201
3-3. Using the audio system
3
Interior features
CAUTION
■For vehicles sold in the U.S.A. and Canada
●Pa r t 1 5 o f t h e F CC Ru l e s
FCC Warning:
Any unauthorized changes or modifications to this equipment will void the user’s
authority to operate this device.
●Laser products
• Do not take this unit apart or attempt to make any changes yourself. 
This is an intricate unit that uses a lase r pickup to retrieve information from the
surface of compact discs. The laser is carefully shielded so that its rays remain
inside the cabinet. Therefore, never try to disassemble the player or alter any
of its parts since you may be exposed to laser rays and dangerous voltages.
• This product utilizes a laser. Use of controls or adjustments or pe rformance of procedures other than
those specified herein may result in hazardous radiation exposure.
NOTICE
■To prevent battery discharge
Do not leave the audio system on longer than necessary when the engine is not run-
ning.
■To avoid damaging the audio/video system
Take care not to spill drinks or other fluids over the audio system.