2010 Lexus GS450h ECO mode

91
1-5. Opening and closing the windows and moon roof
1
Before driving
GS_HV_U (OM30C81U)
January 28, 2010 10:42 am
■The moon roof can be operated when
The “POWER” switch is in ON mode.
■Linked door lock moon roof operation
●The moon roof can be opened and closed using the mechanical key. (P. 575)
●The moon roof can be opened using the wireless remote control if customized
at your Lexus dealer.
* (P. 5 3 )
*: This function cannot be customized unless power window operation using the
wireless remote control is enabled.
■Operating the moon roof after turning the “POWER” switch OFF
The moon roof can be operated for approximately 45 seconds even after the
“POWER” switch is switched to ACCESSORY mode or turned OFF. It cannot,
however, be operated once the driver’s door is opened.
■Jam protection function
If an object is detected between the moon roof and the frame while closing or tilting
down, travel is stopped and the moon roof opens slightly.
■If the moon roof cannot be closed automatically
Keep the close switch depressed.
■To reduce moon roof wind noise
Drive with the moon roof opened automatically ( just before fully opened position).
■Sunshade
The sunshade can be opened and closed manually. However, the sunshade will
open automatically when the moon roof is opened.

101
1
1-7. Theft deterrent system
Before driving
GS_HV_U (OM30C81U)
January 28, 2010 10:09 am
Alarm
The system sounds the alarm and flashes lights when forcible entry is
detected.
■Triggering of the alarm
The alarm is triggered in the following situations.
●A locked door or trunk is unlocked or opened in any way other
than by using the smart access system with push-button start,
wireless remote control or mechanical key. (The doors will lock
again automatically.)
●The hood is opened while the vehicle is locked.
■Setting the alarm system
Close the doors, trunk and
hood, and lock all doors.
The system will be set automati-
cally after 30 seconds.
The indicator light changes from
being on to flashing when the
system is set.
■Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm.
●Unlock the doors or trunk.
●Turn the “POWER” switch to ACCESSORY or ON mode, or
start the hybrid system. (The alarm will be deactivated or stopped
after a few seconds.)

148
2-1. Driving procedures
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
NOTICE
■While driving the vehicle
Do not use the accelerator pedal or depress accelerator and brake pedals together
to hold the vehicle on a hill.
■When parking the vehicle
Always put the shift lever in “P”. Failure to do so may cause the vehicle to move or
the vehicle may accelerate suddenly if the accelerator pedal is accidentally
depressed.
■Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in either direction and hold it there for a long
time. 
Doing so may damage the power steering motor.
●When driving over bumps in the road, drive as slowly as possible to avoid damag-
ing the wheels, underside of the vehicle, etc.
■If you hear a squealing or scraping noise (brake pad wear limit indicators)
Have your Lexus dealer check and replace the brake pads as soon as possible.
The rotor damage can result if the pads are not replaced when needed.
Front brake only: Moderate levels of the brake pad and disc wear allow enhanced
front braking power. As a result, the discs may wear more quickly than conventional
brake discs. Therefore, when replacing the brake pads, Lexus recommends that you
also have the thickness of the discs measured.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or
that of the brake discs are exceeded.

150
2-1. Driving procedures
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
Power (ignition) switch
Performing the following operations when carrying the electronic key on
your person starts the hybrid system or changes “POWER” switch modes.
■Starting the hybrid system
Check that the parking brake is set.
Check that the shift lever is set in “P”.
Sit in the driver’s seat and firmly depress the brake pedal.
The “POWER” switch indicator turns green.
Press the “POWER” switch.
After a few seconds, the
“READY” light will flash and
come on with a beep sound.
The vehicle can move when the
“READY” light is on, even if the
engine is stopped.
The hybrid system can be
started from any mode.
STEP1
STEP2
STEP3
STEP4

153
2-1. Driving procedures
2
When driving
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
■Electronic key battery depletion
P. 4 7
■When the electronic key battery is discharged
P. 4 9 4
■Conditions affecting operation
P. 4 5
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 resulting in death or serious injury.
■Stopping the hybrid system in an emergency
If you want to stop the hybrid system in an emergency while driving the vehicle,
push and hold the “POWER” switch for more than 3 seconds.
However, do not touch the "POWER" switch while driving except in an emergency.
Turning the hybrid system off while driving will not cause loss of steering or braking
control, but the power assist to these systems will be lost. This will make it more diffi-
cult to steer and brake, so you should pull over and stop the vehicle as soon as it is
safe to do so.
NOTICE
■To prevent 12 volt battery discharge
Do not leave the “POWER” switch in ACCESSORY or ON mode for long 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 or stalls frequently, have the hybrid
system checked immediately.

163
2-2. Instrument cluster
2
When driving
GS_HV_U (OM30C81U)
February 1, 2010 11:03 am
Light sensitive optitron meter
To reduce glare or reflection of the 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.)

167
2-2. Instrument cluster
2
When driving
GS_HV_U (OM30C81U)
February 1, 2010 11:03 am
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 ON mode, this could mean that these systems are not
available to help protect you in an accident, which could result in death or serious
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. 5 3 4 )
*: These lights turn on when the “POWER” switch is turned to ON mode
to indicate that a system check is being performed. They will turn off
after the hybrid system is on, or after 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)
*******
*****
**

170
2-2. Instrument cluster
GS_HV_U (OM30C81U)
February 1, 2010 11:03 am
■Current fuel consumption
■Average vehicle speed
Displays the current rate of fuel consumption.
Displays the average vehicle 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 ON mode. At this time a systems check is conducted,
and the normal display is shown upon successful completion of this check.
NOTICE
■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.