ESP Lexus GS450h 2007 Using the hands-free system (for cellular phone) / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. (OM30727U) User Guide

119
2-2. Instrument cluster
2
When driving
■Average vehicle speed
Displays the average vehicl e speed since the hybrid
system was started or the function was reset.
The function can be reset by pushing the “DISP” switch
for longer than one second when the average vehicle
speed is displayed.
■System check display
The “HYBRID SYNERGY DRIVE” message is displayed 3 seconds after the
po
wer switch is set to the “IG-ON” mode . At this time a systems check is con-
ducted, and the normal display is shown up on successful completion of this check.
CAUTION
■The multi-information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal informa-
tion display. At extremely low temperatures, the information display monitor may
respond slowly, and display changes may be delayed.

135
2-4. Using other driving systems
2
When driving
■Automatically canceling vehicle-to-vehicle distance control
Vehicle-to-vehicle distance control driving is automatically canceled in the follow-
ing situations.
●Vehicle speed falls below 25 mph (40 km/h)
●VSC is activated
●The windshield wipers are operating at high speed
●The mode select switch is set to snow mode
●The sensor cannot operate correctly because it is covered in some way
Vehicle-to-vehicle distance control driving must be reset by turning the “ON-OFF”
button on again.
If vehicle-to-vehicle distance control driving is automatically canceled for any other
reason, there may be a malfunction in the system. Contact your Lexus dealer.
■Automatically canceling constant speed control
The set speed is automatically canceled in the following situations.
●Actual vehicle speed is more than 10 mph (16 km/h) below the preset vehicle
speed
●Vehicle speed falls below 25 mph (40 km/h)
●VSC is activated
■Vehicle-to-vehicle distance settings
Select a distance from the table below. Note that the distances shown correspond
to a vehicle speed of 50 mph (80 km/h). Vehicle-to-vehicle distance increases/
decreases in accordance with vehicle speed.
Distance optionsVehicle-to-vehicle distance
LongApproximately 218 ft. (66 m)
MediumApproximately 148 f t. (45 m)
ShortApproximately 100 f t. (30 m)

136
2-4. Using other driving systems
■Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-vehicle
distance control operates properly. (Some obstructions, such as snow, ice or plastic
objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canceled if an obstruction is detected.
■Certification
For vehicles sold in the U.S.A.
For vehicles sold in Canada
Grille cover
Radar sensor
FCC WARNING
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
FCC RF exposure information
This device complies with the FCC RF exposure requirements.
Operation is subject to the following two conditions;
(1) This device may not cause interference, and
(2) This device must accept any interfer ence received, including interference
that may cause undesired operation of the device.

154
2-4. Using other driving systems
■When the system malfunctions
●If a malfunction occurs and no obstacles have been detected, a warning is dis-
played, and a malfunction beep sounds for 7 seconds. 
If an obstacle has been detected, or another malfunction occurs in a different
sensor
, the malfunction beeps will not sound.
●In the following circumstances the displayed warning will disappear:
• If you switch the screen to a different mode.
• If you turn OFF the intuitive parking assist main switch.
• If the vehicle speed exceeds 6 mph (10 km/h). Once the vehicle speed drops
b
elow 6 mph (10 km/h), the warning will be displayed again.
●If the malfunction screen is displayed, the detection range of the dual sensors is
shortened. In this case, the necessity fo r obstacle evasion (whether the obstacle
will come within 0.8 ft. (25 cm) of the vehicle or not) will not be calculated.
■When using intuitive parking assist
●The sensors' detection areas and reaction times are limited. When moving for -
ward or reversing, check the areas surrounding the vehicle (especially the sides
of the
vehicle) for safety, and drive slowly, using the brake to control the vehicle’s
speed.
• The sensors' detection areas are limited to the ar
eas around the vehicle’s front
and rear bumpers.
• Depending on the shape of the obstacle
and other factors, the detection dis-
tance may shorten, or dete ction may be impos
sible.
• There will be a short delay between ob stacl
e detection and display. Even at
slow speeds, there is a possibility that the obstacle will come within 0.8 ft. (25
cm) of the vehicle before the display is shown and the warning beep sounds.
• Braking distance may differ according to the road conditions (rain, gravel
et
c.).
• It might be difficult to hear beeps due to the volume of audio system or air fl
ow noise of air conditioning system.
• For long obstacles such as walls, the obstacle warning may change as the o
bstacle gets closer.

155
2-4. Using other driving systems
2
When driving
●In the following situations, the intuitive parking assist may not function correctly,
possibly leading to an accident.
• There is ice, snow or mud on the sensors. (Wiping the sensors will resolve this problem.)
• The sensor area is frozen. (Thawing the area will resolve this problem.) 
In especially cold weather, if a sensor is frozen the screen may show an abnor-
mal display, or obstacles may not be detected.
• The vehicle angle is especially wide.
• In harsh sunlight or intense cold weather.
• When driving on bumpy, sloped or gravel roads, or over grass.
• If there is something producing ultrasonic waves nearby, such as another vehicle’s horn, motorcycle engine nois e, air braking sound from heavy-duty
vehicles, or another vehicle using the intuitive parking assist.
• In heavy rain, or if water is splashed on the sensors.
• If a commercial fender pole or radio antenna is installed.
• If towing eyelet is installed on your vehicle.
• If moving towards a high curb or a curb corner.
• Objects such as signs may cause the detection distance to shorten.
• The area directly under the bumpers is not detected. 
Objects lower than the sensor s or thin stakes etc. may be detected initially,
but as they draw closer, they may cease to be detected.
• If obstacles draw too close to the sensor.
■Obstacles that may not be detected correctly
The following obstacles may not be detected.
• Thin objects such as wire, fencing or rope.
• Objects that absorb sound waves, such as cotton or snow.
• Objects with sharp corners.
• Objects where the upper section projects out over the lower section.
•Low objects.

162
2-4. Using other driving systems
Driving assist systems
To help enhance driving safety and performance, the following systems
operate automatically in response to various driving situations. Be aware,
however, that these systems are supplementary and should not be relied
upon too heavily when operating the vehicle.
■ABS (Anti-lock Brake System)
Restrains the vehicle from slipping when driving on slick road surfaces or
in the event of sudden braking.
■BA (Brake Assist)
Generates an increased level of braking force after the brake pedal is
depressed, when the system detects a panic stop situation.
■VSC (Vehicle Stability Control)
Helps the driver to control skidding wh en swerving suddenly or turning on
slippery road surfaces.
■ TRAC (Traction Control)
Maintains drive power and prevents the rear wheels from spinning when
starting the vehicle or accelerating on slippery roads.
■Hill-start assist control
Helps prevent the vehicle from rolling backwards when starting on an
incline or slippery slope. It operat es for approximately 5 seconds at maxi -
mum.
■ VGRS (Variable Gear Ratio Steering)
Adjusts the wheel turning angle in accordance with the vehicle speed and
steering wheel movement.
■EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn
the steering wheel.
■Active stabilizer suspension system
Turns at smaller angles to main tain the stable vehicle posture.

183
3-1. Using the touch screen
3
Interior features
The initial screen
If the power 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 1
“A U D I O ”P. 2 0 0
“INFO” (Displaying the “Informa-
tion” screen)P. 1 8 2
“DISP” (Adjusting the display)P. 1 8 6
Trip Information. (Displaying the
“Trip Information” screen)P. 6
MaintenanceNavigation System Owner's Manual
Te l e p h o n eP. 2 6 8
CalendarNavigation System Owner's Manual
“LEXUS Park Assist”P. 1 5 3
LanguageP. 1 8 5
Screen SettingP. 1 8 8
Adjust ClockP. 3 1 9 /
Navigation System Owner's Manual

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.

201
3-3. Using the audio system
3
Interior features
■Using cellular phones
Interference may be heard through the audio system’s speakers if a cellular phone is
be
ing used inside or close to the vehi cle while the audio system is operating.
CD player: Plays audio CDs, CD text, MP3 discs and WMA discs.
DVD player: Plays audio CDs, CD text, video CDs, MP3 discs,
WMA discs, DVD video discs and DVD audio discs.
Ti t l ePa g e
Using the radioP. 2 0 3
Using the cassette playerP. 2 1 2
Using the CD playerP. 2 1 6
Playing MP3 and WMA discsP. 2 2 4
Using the DVD playerP. 2 3 2
Playing DVD video/audioP. 2 3 5
Playing video CDP. 2 4 8
DVD player and DVD video disc 
informationP. 2 5 2
Optimal use of the audio/video systemP. 2 5 6
Using the steering wheel switchesP. 2 6 0

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3-3. Using the audio system
Using Dolby® Noise Reduction
To u c h on the screen.
Reduces the level of noise for tapes r
ecorded with Dolby NR only.
Dolby noise reduction is manufactured under license from Dolby Laborato-
ries Licensing Corporation. DO LB
Y and the double-D symbol are
registered trademarks of Dolby Laboratories.
■Canceling noise reduction, skip play, repeat play, rewind and fast forward
To c a n c e l , and : Touch the corresponding button on the screen.
To c a n c e l and : Touch the corresponding button on the screen or press
.
■Auto-reverse feature
After the cassette player reaches the end of a tape, it automatically reverses and
b
egins to play the other side, regardless of whether the cassette was playing or fast
forwarding.
■When the cassette player does not operate correctly due to the cassette record -
ing conditions
Forwarding to the beginning of a track, repeat, blank tape skip and fast-forward
ma
y not be possible in the following situations:
●The interval between tracks is less th an 3 seconds (beginning of track and
repeat playback) or less than 15 seconds (blank tape skip).
●When there is noise between 2 tracks.
●The beginning and end of subsequent tracks are not clearly defined.
■Cleaning the cassette player
Cassette player components (heads, capstan, pinch rollers) should be cleaned at
le

ast once a month using a cleaning tape to remove dirt and dust that can easily
build up.
■Using long playing cassette tapes
Avoid using tapes with a length of more than 90 minutes, as the tape used is very
thin an
d may become tangled in the cassette player.