light Lexus GS450h 2007 Using the audio system / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. (OM30727U) Repair Manual

164
2-4. Using other driving systems
To disable TRAC
If the vehicle gets stuck in fresh snow or mud, TRAC 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.
Push the button to turn off TRAC.
The slip indicator light should come
on.
Push the button again to turn the
sy
stem back on.
Once you turn the power switch
“
OFF”, TRAC will be activated
automatically.
■Automatic TRAC reactivation
TRAC is reactivated when vehicle speed exceeds 30 mph (50 km/h) even if
“

TRAC OFF” has been turned off.
■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 hybrid system 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.

166
2-4. Using other driving systems
CAUTION
■The hill-start assist control may not operate effectively when
●On steep inclines.
●On icy surfaces.
■When the VSC is activated
The slip indicator light flashes and a warning buzzer sounds. Always drive carefully.
Reckless driving may cause an accident. Exercise particular care when the indica-
tor light flashes and a buzzer sounds.
■Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total load
capacity. In addition, make sure that the ti res are inflated to the specified tire pres-
sure level.
The ABS and VSC will not function correctly if different tires are fitted on the vehi-
cle. 
Contact your Lexus dealer for further info rmation when replacing tires or wheels.
■Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect the
VDIM, and may cause the system to malfunction.

168
2-4. Using other driving systems
■The pre-collision system is operational when
●Seat belt (linked to the radar sensor)
• Vehicle speed is above 3 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or oncoming vehicle exceeds 18 mph (30 km/h).
• The front occupants are wearing a seat belt.
●Seat belts (linked to brake operation)
• Vehicle speed exceeds 9 mph (15 km/h).
• The system detects sudd en braking or skidding.
• The front occupants are wearing a seat belt.
●Brake Assist
• Vehicle speed is above 18 mph (30 km/h).
• The speed at which your vehicle is approaching the obstacle or oncoming vehicle exceeds 18 mph (30 km/h).
• The brake pedal is depressed.
●AV S
• Vehicle speed is above 3 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or oncoming vehicle exceeds 18 mph (30 km/h).
■Conditions that may trigger the system even if there is no danger of collision
●When there is an object by the roadside at the entrance to a curve
●When passing an oncoming vehicle on a curve
●When driving over a narrow iron bridge
●When there is a metal object on the road surface
●When driving on an uneven road surface
●When passing an oncoming vehicle on a left-turn
●When your vehicle rapidly closes on the vehicle in front
When the system is activated in the situations described above there is also a possi-
bility that the seat belts will retract quickly and the brakes will be applied with a force
greater than normal. When the seat belt is locked in the retracted position, stop the
vehicle in a safe place, release the seat belt and refasten.
■When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. ( P. 432, 439)

169
2-4. Using other driving systems
2
When driving
CAUTION
■Handling the radar sensor
Observe the following to ensure the pre-collision system can function effectively.
●Keep the sensor and front grille clean at all times.
Clean the sensor and front grille with a so ft cloth so you do not mark or damage
them.
●Do not subject the sensor or surrounding area to a strong impact. 
If the sensor moves even slightly off position, the system may malfunction. If the
sensor or surrounding area are subject to a strong impact, always have the area
inspected and adjusted by a Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor, grille cover or surrounding
area.
■Limitations of the pre-collision system
Do not rely on the pre-collision system. Always drive safely, taking care to observe
your surroundings and checking for any obstacles or other road hazards.

Interior features3
181
3-1. Using the touch screen ......... 182Touch screen ................................ 182
Setting the touch screen ......... 185
3-2. Using the air conditioning  system and defogger ............ 191
Automatic air conditioning 
system ........................................... 191
Rear window and outside rear 
view mirror defoggers............... 199
3-3. Using the audio system ....... 200 Audio system type ................... 200
Using the radio ........................... 203
Using the cassette player........ 212
Using the CD player ................. 216
Playing MP3 and WMA 
discs ............................................. 224
Using the DVD player ............ 232
Playing DVD video/audio ...... 235
Playing video CD ...................... 248
DVD player and DVD video 
disc information ...................... 252
Optimal use of the audio/ 
video system ............................. 256
Using the steering 
switches ...................................... 260
3-4. Using the hands-free  system ..................................... 263
Hands-free system.................... 263 Using the Bluetooth
®

phone .......................................... 268
Setting the hands-free 
system .......................................... 281
3-5. Using the interior lights ....... 307 Interior lights list ........................ 307
3-6. Using the storage features ... 311 List of storage features .............. 311
3-7. Other interior features......... 317
Sun visors ....................................... 317
Vanity mirror ................................ 318
Clock............................................... 319
Outside temperature  display ......................................... 320
Ashtrays ......................................... 321
Cigarette lighter ........................ 322
Power outlet ................................ 323
Seat heaters ............................... 324
Seat heaters and 
ventilators ................................. 326
Armrest ......................................... 328
Rear sunshade............................ 329
Floor mats ..................................... 331
Trunk features ............................. 332
Garage door opener............... 334
Compass....................................... 339

184
3-1. Using the touch screen
■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 sl ower than normal.
●The screen may seem dark and hard to see when viewed through sunglasses.
Change your angle of viewing, or remove your sunglasses.

186
3-1. Using the touch screen
Adjusting the display
Press .
Adjust the display as desired using / and /
If you do not touch the screen for 20 seconds, the system will return to
the previous screen.
Vehicles with DVD player
Vehicles with CD player
STEP1
STEP2
/ /
ColorRedGreen
To n eLighterDarker
ContrastWe a k e rStronger
BrightnessDarkerBrighter

187
3-1. Using the touch screen
3
Interior features
■“Day Mode”
■To turn off the picture display
If is touched, the screen display is turn ed
off, and guidance is by voice only.
When the headlights are turned on, the
screen dims. However the screen can be
switched to “Day Mode”.
The screen will stay in “Day Mode” when
the headlights are turned on until is
touched again.
If the instrument panel light control is set to
“MAX”, “Day Mode” is not displayed.

191
3
Interior features
3-2. Using the air conditioning system and defogger
Automatic air conditioning system
Airflow and outlets are automatically adjusted according to the tempera-
ture setting.
Press
to display the air conditioning operation screen.
The above illustration is for a vehicle equipped with the navigation sys -
tem. The position of may differ slightly for vehicles not equipped
with the navigation system.
Automatic mode
Driver’s side 
temperature display
Fan speed display
Off Airflow display
Air conditioning operation
screen display button
Passenger’s side 
temperature 
display
Micro dust and pollen removal mode
Driver's side

temperature control
Air conditioning

ON/OFF switch
Outside air or recirculated mode
Windshield defogger Passenger’s side 
temperature control
Dual operation switch

197
3-2. Using the air conditioning system and defogger
3
Interior features
■Using the automatic mode
Fan speed is adjusted automatically in acc or
dance with the temperature setting and
ambient conditions. As a result, the following may occur.
●The system may switch automatically to recirculated mode when the coolest
temperature setting is selected in summer.
●Immediately after the switch is pressed, the fan may stop for a while until warm
or cool air is ready to flow.
●Cool air may flow to the area around the upper body when the heater is on.
■Using the system in recirculated air mode
The windows will fog up more easily if the recirculated air mode is used for an
exte
nded period.
■Window defogger feature
Recirculated air mode may automatically switch to
(outside air) mode in situ -
ations where the windows need to be defogged.
■Outside temperature approaches 32 F (0C).
The air conditioning system ma
y not operate even when is touched.
■When the indicator light on flashes
To u c h
and turn off the air conditioning system before turning it on once
more. There may be a problem in the air conditioning system if the indicator light
co
ntinues to flash. Turn the air conditioning system off and have it inspected by your
Lexus dealer.
■Automatic mode for air intake control
In automatic mode, the system detects exhaust gas and other pollutants and auto -
matically switches between outside air and recirculated air modes.
When the air conditioning is OFF, and th e
fan is operating, turning the “AUTO”
mode ON will activate the air conditioning system.
■Micro dust and pollen removal mode
●When the outside air is cold, the following may occur.
• Outside air mode does not switch to .
• The air conditioning syst em ope
rates automatically.
• The operation cancels after 1 minute.
●In rainy weather, the windows may fog up. Press .