2007 Lexus GS450h ECO mode

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2-1. Driving procedures
2
When driving
CAUTION
■When starting the hybrid system
Always start the hybrid system while sitting in the driver’s seat. Do not press the
accelerator pedal while starting the hybrid system under any circumstances.
Doing so may cause an accident resu lting in death or serious injury.
■Caution while driving
Do not touch the power switch while driving. 
Pressing and holding the power switch will stop the hybrid system, which may lead
to an accident.
NOTICE
■To prevent 12 volt battery discharge
Do not leave the power switch in “ACC” or “IG-ON” mode for lo ng periods without
the hybrid system on.
■When starting the hybrid system
●Do not race the hybrid system.
●If the hybrid system becomes difficult to start, have the hybrid system checked
immediately.

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2-2. Instrument cluster
Light sensitive optitron meterTo reduce glare or reflection of th e instrument cluster, the cluster glass is
tinted automatically or manually. You can select a setting from 7 modes.
Display the present setting, then
change the mode.
To change the mode, press the but-
ton once and then again within 6
seconds.
Each time you press the button, the
mode changes in the following
order;
1. “AUTO - Norm”
2. “AUTO - Lo”
3. “AUTO - Hi”
4. “MANUAL - 1”
5. “MANUAL - 2”
6. “MANUAL - 3”
7. “ M A N U A L - 4 ”
Mode 1 to 3: The cluster glass tint
will be adjusted automatically
depending on the intensity of sun-
light in the surrounding. 
Mode 4 to 7: The cluster glass tint
will be fixed when a certain level of
sunlight is reached in the surround-
ing. 
(“Norm” to “Hi”, “1” to “4” referring
to the level of cluster glass tint.)

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2-2. Instrument cluster
CAUTION
■If a safety system warning light does not come on
Should a safety system light such as ABS and the SRS airbag warning light not
come on when you turn to “IG-ON” mode, this could mean that these systems are
not available to help protect you in an accid ent, which could result in death or seri-
ous injury. Have the vehicle inspected by your Lexus dealer immediately if this
occurs.
■ Warning lights
Warning lights inform the driver of malfunctions in the indicated
vehicle’s systems. ( P. 4 3 8 )
*: These lights turn on when the power switch is turned to “IG-ON” mode
to indicate that a system check is being performed. They will turn off
after the hybrid system is on, or af ter a few seconds. There may be a mal-
function in a system if the lights do not come on, or turn off. Have the
vehicle inspected by your Lexus dealer.
(U.S.A.)(Canada)(U.S.A.)(Canada)
(U.S.A.)(Canada)(if equipped)
*******
*****
*

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2-2. Instrument cluster
2
When driving
■Average vehicle speed
Displays the average vehicl e speed since the hybrid
system was last started.
■System check display
The “LEXUS HYBRID DRIVE” message is displayed 3 seconds after the power
switch is set to the “IG-ON ” mode. At this time a systems check is conducted, and
the normal display is shown upon su ccessful 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.

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2-3. Operating the lights and windshield wipers
■Automatic light off system
The headlights and tail lights turn off 30 seconds after all doors are closed if the
power switch has been switched to “ACC” or turned “OFF” while the headlights are
turned on. (The lights turn off immediat ely if the button on the key is pressed
after all doors are locked.)
To turn the lights on again, switch to “IG-ON” mode, or turn the light switch “OFF”
once and then back to the or position.
■Automatic headlight leveling system
The level of the headlights is automatica lly adjusted according to the number of
passengers and the loading condition of the vehicle to ensure that the headlights do
not interfere with other road users.
■If the indicator flashes...
It may indicate a malfunction in the system. Contact your Lexus dealer.
■Customization
Settings (e.g. light sensor sensitivity) can be changed. ( P. 5 1 0 )
NOTICE
■To prevent 12 volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is off.

127
2-3. Operating the lights and windshield wipers
2
When driving
■Rain drop sensor
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the wind-
shield washer fluid reservoir.
■In extremely hot or cold weather
The system will turn off if the windshield gets extremely hot (at more than 176 F
[80 C]) or cold (at less than 14 F [-10C]).
■Customization
Settings (e.g. drip prevention function) can be changed. ( P. 5 1 0 )
CAUTION
■Caution regarding the use of windshield wipers in “AUTO” mode
The windshield wipers may operate unexpectedly if the sensor is touched or the
windshield is subject to vibration in “AUT O” mode. Take care that your fingers or
anything else do not become caught in the windshield wipers.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■When there is no washer fluid spray from the nozzle
Damage to the washer fluid pump may be caused if the lever is pulled toward you
and held continually.
The sensor judges the amount of raindrops.

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2-4. Using other driving systems
Dynamic radar cruise control (if equipped)
Dynamic radar cruise control supplements conventional cruise control
with a vehicle-to-vehicle distance control. In the vehicle-to-vehicle dis-
tance control mode, the vehicle automa tically accelerates or decelerates
in order to maintain a set following distance from vehicles ahead.
■ Select cruise mode
Selecting vehicle-to-vehicle dis-
tance control modeTurn the “ON-OFF” button
ON.
Push the button once more to
deactivate.
Selecting conventional con-
stant speed control mode
Turn the “ON-OFF” button
ON.
Switch to constant speed
control mode. 
(Push and hold for approxi-
mately 1 second.)
Push the button once more to
deactivate.
Vehicle-to-vehicle distance con-
trol mode is always reset when
the power switch is switched to
“IG-ON” mode.

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2-4. Using other driving systems
■The intuitive parking assist can be operated when
The power switch is in the “IG-ON” mode.
■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
below 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 areas 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 impossible.
• There will be a short delay between ob stacle 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 etc.).
• It might be difficult to hear beeps due to the volume of audio system or air flow noise of air conditioning system.
• For long obstacles such as walls, the obstacle warning may change as the
obstacle gets closer.