ECU Lexus GS450h 2007 Using the hands-free system (for cellular phone) / LEXUS 2007 GS450H FROM JULY 2006 PROD. (OM30A05U) Owner's Guide

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2-4. Using other driving systems
2
When driving
■Rear view monitor system camera
■Smear effect
In the following cases, it may be difficult to
see the images on the screen, even when the
system is functioning correctly.
• In the dark (e.g. at night).
• If the temperature near the lens is extremely high or low.
• If water droplets get on the camera, or when humidity is high (e.g. when it rains).
• If foreign matter (e.g. snow or mud) get
on the camera lens.
• If the sun or headlights are shining directly
into the camera lens.
If a bright light (for example, sunlight
reflected off the vehicle body) is picked up by
the camera, a smear effect* peculiar to the
camera may occur.
*: Smear effect—A phenomenon that occurs when a bright light (for example, sunlight
reflected off the vehicle body) is picked up
by the camera; when transmitted by the
camera, the light source appears to have a
vertical streak above and below it.

172
2-5. Driving information
Cargo and luggage
Capacity and distributionCargo capacity depends on the to tal weight of the occupants.
(Cargo capacity) = (Total load capa city) — (Total weight of occupants)
Steps for Determining Correct Load Limit—
(1) Locate the statement “The combined weight of occupants and cargo should never exceed XXX kg or XXX lbs.” on your vehicle’s
placard.
(2) Determine the combined weight of the driver and passengers that
will be riding in your vehicle.
(3) Subtract the combined weight of the driver and passengers from
XXX kg or XXX lbs.
(4) The resulting figure equals the av ailable amount of cargo and lug-
gage load capacity.
For example, if the “XXX” amount equals 1400 lbs. and there will be
five 150 lb passengers in your vehicl e, the amount of available cargo
and luggage load capacity is 650 lbs. (1400 - 750 (5 150) = 650
lbs.)
(5) Determine the combined weight of luggage and cargo being
loaded on the vehicle.
That weight may not safely exceed the available cargo and luggage
load capacity calculated in Step 4.
Take notice of the following informat ion about storage precautions, cargo
capacity and load.
● Stow cargo and luggage in the trunk whenever possible. Be sure
all items are secured in place.
● Be careful to keep the vehicle level. Placing the weight as far for-
ward as possible helps maintain vehicle balance.
● For better fuel economy, do not carry unnecessary weight.

174
2-5. Driving information
CAUTION
■Storage precautions
●Do not place anything on the package tray behind the rear seatback. 
Such items may be thrown about and possib ly injure people in the vehicle during
sudden braking or in an accident.
●Do not drive with objects on top of the instrument panel. 
They may interfere with the driver’s field of view or move during sharp accelera-
tion or turning, thus impairing the driver ’s control of the vehicle. In an accident
they may injure the vehicle occupants.
●Secure all items in the occupant compartment, as they may shift and injure some-
one during an accident or sudden braking.
■Weight of the load
●Improper loading may cause deterioration of steering or braking control result-
ing in an accident which may cause death or serious injury.
●Do not exceed the maximum axle weight ra ting or the total vehicle weight rating.
●Even if the total load of occupant's weight and the cargo load is less than the total
load capacity, do not apply the load unevenly. Improper loading may cause dete-
rioration of steering or braking control which may cause death or serious injury.

190
3-1. Using the touch screen
Screen settingsPress .
Touch on the “Information” screen.
The following screen se ttings can be changed.
Automatic transition
20 seconds after air-conditioning
or audio system use, the system will
return the display to the previous
screen.
Switch color
You can select the switch color.
Delete personal data
The following personal data is
deleted:
• User selection settings
•Phone book data
• Dialed numbers and received calls
•Speed dial
• Bluetooth
® phone data
•Security code
• Maintenance conditions*
• Maintenance information “off” setting*
•Memory points*
•Areas to avoid*
• Previous points*
• Route trace*
*: If the navigation system is equipped
STEP1
STEP2

210
3-3. Using the audio system
■If the satellite radio does not operate normally
If a problem occurs with the XM
® tuner, a message will appear on the screen. Refer
to the table below to identify the problem, and take the suggested corrective action.
ANTENNA
The XM® antenna is not connected. Check whether
the XM® antenna cable is attached securely.
There is a short-circuit in the antenna or the surround-
ing antenna cable. See a Lexus certified dealer.
UPDATING
You have not subscribed to XM® satellite radio. The
radio is being updated with the latest encryption code.
Contact XM
® satellite radio for subscription informa-
tion. When a contract is canceled, you can choose
“CH000” and all free-to-air channels.
The premium channel you selected is not authorized.
Wait for about 2 seconds until the radio returns to the
previous channel or “CH001”. If it does not change
automatically, select another channel. If you want to lis-
ten to the premium channel, contact XM
® satellite
radio.
NO SIGNAL
The XM® signal is too weak at the current location.
Wait until your vehicle reaches a location with a stron-
ger signal.
LOADIN GThe unit is acquiring audio or program information.
Wait until the unit has received the information.
OFF AIRThe channel you selected is not broadcasting any pro-
gramming. Select another channel.
-----
There is no song/program title or artist name/feature
associated with the channel at that time. No action
needed.

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3-4. Using the hands-free system
3
Interior features
Deleting the historyPress .
Touch on the “Information” screen.
Touch on the “Telephone” screen.
Select the data to delete from the list.
To delete data from the received calls history, touch , then
select the data to delete.
To u c h .
Check that everything is correct, then touch .
Changing the security settings You can disable certain hands-free system functions. Use the security set-
tings when you do not wish other peop le to see the registered data, for
example when having the vehicle valet parked at a hotel.
To enable or disable security, the security code (4 digits) is required. The
default code is “0000”. Be sure to ch ange the security code before use.
STEP1
STEP2
STEP3
STEP4
STEP5
■To delete all data
Follow the steps “Deleting a group name” to “STEP 4”. Touch on the “Out-
going Calls” screen. To delete all received call history data, touch , then
touch . Check that everything is correct, then touch .
STEP6

296
3-4. Using the hands-free system
■Changing the security code
Press .
Touch on the “Information” screen.
Touch on the “Telephone” screen.
Touch on the “Settings” screen. Touch in the “Secu-
rity Code” section.
Input the current security code,
and touch .
Input the new security code, and touch .
A confirmation message will appear . If everything is correct,
touch .
STEP1
STEP2
STEP3
STEP4
STEP5
STEP6
STEP7
STEP8

297
3-4. Using the hands-free system
3
Interior features
■Enabling security
Press .
Touch on the “Information” screen.
Touch on the “Telephone” screen.
Touch on the “S ettings” screen.
Touch in the “Phone Book Lock” section of the “Phone
Book Lock” screen.
Input the security code, and touch .
■ Setting the security code to default
Press .
Touch on the “Information” screen.
Touch on the “Telephone” screen.
Touch on the “S ettings” screen.
Touch on the “Phone Book Lock” screen.
Input the security code on the “Security Code” screen, then
touch .
A confirmation message will appear . If everything is correct,
touch .
STEP1
STEP2
STEP3
STEP4
STEP5
STEP6
STEP1
STEP2
STEP3
STEP4
STEP5
STEP6
STEP7

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3-4. Using the hands-free system
■If the “Phone Book Lock” is set
If the security code is input and the “Phone Book Lock” set, the following functions
are locked.
●Display of the phone book screen and transferring, registering, editing, deleting
the phone book data.
●Display of speed dial screen, registering, deleting the speed dial and speed dial-
ing.
●Display of the other party's name for calls being received or made.
●Displayed of dialed numbers screen and received calls screen, deleting dialed
numbers and received numbers.
●Display of phone information screen.
●Changing the security code.
The speed dial screen is not displayed while driving.
■When changing the security code
●Be sure to choose a number difficult for strangers to guess.
●Do not forget the security code. Even your Lexus dealer will be unable to dis-
able the security. If you do forget the code, initialize all personal data. ( P. 1 9 0 )

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3-7. Other interior features
Floor mats
CAUTION
■When inserting the floor mat
Make sure the floor mat is properly placed on the vehicle carpet. If the floor mat
slips and interferes with the movement of the pedals during driving, it may cause an
accident.
Securely place a mat that matches the size of the space on the carpet.
Secure the floor mat using the
hooks provided.