Page 10 of 100

9
GS450h_QG_U (OM30D12U)
Hybrid System
■Hybrid System Indicator
Charge area
Shows regenerative charging.
Hybrid Eco area
Shows that gasoline engine power is
not being used very often.
The gasoline engine will automatically
stop and restart under various condi-
tions.
Eco area
Shows that the vehicle is being driven
in an Eco-friendly manner.
Pow e r a r e a
Shows that an Eco-friendly driving
range is being exceeded (during full
power driving etc.)
● Hybrid System Indicator is displayed when the driving mode is other than the sport
mode.
● By keeping the indicator need le within Eco area, more Eco-friendly driving can be
achieved.
● Charge area indicates regeneration
* status. Regenerated energy will be used to charge
the battery.
*: When used in this manual, “regeneration” refers to the conversion of energy created by the movement of the vehicle into electrical energy.
Your vehicle is a hybrid vehicle. It has characteristics different from conventional vehicles.
Be sure you are closely familiar with the char acteristics of your vehicle, and operate with
care.
The hybrid system combines the use of a gasoline engine and an electric motor (traction
motor) according to driving conditions, improving fuel efficiency and reducing exhaust
emissions.
For details, refer to the “Owner’s Manual”.
1
2
3
4
GS450h_QG_U.book Page 9 Friday, January 20, 2012 5:54 PM
Page 18 of 100
17
GS450h_QG_U (OM30D12U)
Theft Deterrent System
■Immobilizer system
The indicator light flashes after the power
switch has been turned off to indicate that
the system is operating.
The indicator light stops flashing after the
power switch has been turned to ACCES-
SORY or ON mode to indicate that the sys-
tem has been canceled.
■Alarm
The alarm uses light and sound to give an alert when an intrusion is detected.
To set the alarm:
Close the doors, trunk and hood, and lock all the doors. The system will be set automatically
after 30 seconds. The indicator light changes from being on to flashing when the system is set.
To deactivate or stop the alarm:
● Unlock the doors or open the 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.)
GS450h_QG_U.book Page 17 Friday, January 20, 2012 5:54 PM
Page 42 of 100
41
GS450h_QG_U (OM30D12U)
Dynamic Radar Cruise Control (if equipped)
Vehicle-to-vehicle distance button
Display
Set speed
Indicators
Cruise control switch
■Setting the vehicle speed (vehicle-to-vehicle distance control mode)
Press the “ON/OFF” button to activate
the cruise control.
Radar cruise control indicator will
come on.
Press the button again to deactivate
the cruise control.
Accelerate or decelerate the vehicle to
the desired speed, and push the lever
down to set the speed.
“SET” indicator will be displayed.
The vehicle speed at the moment the
lever is released becomes the set
speed.
Dynamic radar cruise control supplements conventional cruise control with a vehicle-to-
vehicle distance control. In vehicle-to-vehicle distance control mode, the vehicle automat-
ically accelerates or decelerates in order to maintain a set following distance from vehi-
cles ahead.
1
2
3
4
5
1
2
GS450h_QG_U.book Page 41 Friday, January 20, 2012 5:54 PM
Page 44 of 100
43
GS450h_QG_U (OM30D12U)
■Canceling and resuming the speed control
Pulling the lever toward you cancels
the cruise control.
The speed setting is also canceled
when the brakes are applied.
Pushing the lever up resumes the
cruise control.
Resuming is available when the vehicle
speed is more than approximately 25
mph (40 km/h).
■Selecting conventional constant speed control mode
Press the “ON/OFF” button to activate
the cruise control.
Radar cruise control indicator will
come on.
Press the button again to deactivate
the cruise control.
Switch to constant speed control
mode.
(Push the lever forward and hold for
approximately one second.)
Cruise control indicator will come on.
When in constant speed control mode,
to return to vehicle-to-vehicle distance
control mode, push the lever forward
again and hold for approximately 1 sec-
ond.
1
2
1
2
GS450h_QG_U.book Page 43 Friday, January 20, 2012 5:54 PM
Page 47 of 100

46
GS450h_QG_U (OM30D12U)
LKA (Lane-Keeping Assist) (if equipped)
Lane departure warning function
If the system judges that the vehicle may deviate from its lane, it alerts the driver using
beeping, screen displays and a sensory warning
* given via the steering wheel.
*: A slight steering torque is applied for a short period of time in the direction of the
center of the lane.
Lane keeping assist function
• This function will be active when the vehicl e-to-vehicle distance control mode of the
cruise control is set with vehicle speed above approximately 45 mph (72 km/h) and
while the lane departure warning function is active.
• When the lane keeping assist function is act ive, a slight steering torque will be applied,
to help the driver maintain the vehicle inside the lane.
While driving on a freeway or motor highway that has lane markers and no sharp curves,
the system recognizes the lanes using a camera located above the inside rear view mir-
ror as a sensor to assist the driver with st aying in the lane. The LKA system has two func-
tions.
1
2
GS450h_QG_U.book Page 46 Friday, January 20, 2012 5:54 PM
Page 48 of 100

47
GS450h_QG_U (OM30D12U)
■Turning the LKA system on
Press the “LKA” switch to activate the sys-
tem.
“LKA” indicator will come on.
Press the switch again to turn the LKA
system off.
The LKA system will revert to off each
time the power switch is turned to ON
mode.
■Indication on the multi-information display
When the LKA system is on, the lane line display and steering wheel display are shown.
Lane keeping assist function operation
indication
Steering wheel displayed:
Indicates that the function is currently
operating.
Steering wheel not displayed:
Indicates that the function is not cur-
rently operating.
Dynamic radar cruise control display
Lane departure warning function indi-
cation (when the inside of the white line
is white):
The function has recognized lane
markers.
Lane departure warning function indi-
cation (when the inside of the white line
is black):
A lane marker is not recognized by the
system, or the LKA system functions
are temporarily canceled.
1
2
3
4
GS450h_QG_U.book Page 47 Friday, January 20, 2012 5:54 PM
Page 49 of 100

48
GS450h_QG_U (OM30D12U)
Driving Mode Select Switch
Normal mode
For normal driving.
Press the switch to change the driving mode to normal mode when selected to Eco
drive mode or sport mode.
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips that involve fre-
quent accelerating.
When not in Eco drive mode and the driving mode select switch is turned to the left, the
“ECO MODE” indicator comes on in the multi-information display.
Sport mode
•SPORT S mode Assists acceleration response by controllin g the hybrid system. Suitable for when pre-
cise handling is desirable, for exam ple when driving on mountain roads.
When not in SPORT S mode and the driving mode select switch is turned to the right,
the “SPORT S” indicator comes on in the multi-information display, and the Hybrid
System Indicator changes to the tachometer.
•SPORT S+ mode Helps to ensure steering performance and dr iving stability by simultaneously control-
ling the steering and suspension in addition to the hybrid system. Suitable for sporty
driving.
When in SPORT S mode and the driving mode se lect switch is turned to the right, the
“SPORT S+” indicator comes on in the mult i-information display, and the Hybrid Sys-
tem Indicator changes to the tachometer.
The driving modes can be select ed to suit driving condition.
1
2
3
Topic02_U.fm Page 48 Monday, January 30, 2012 1:27 PM
Page 78 of 100
77
GS450h_QG_U (OM30D12U)
Seat Heaters/Seat Ventilators
■Front seat heaters
Press the switch to turn the seat heater on.
Hi
Mid
Lo
Off
■Rear seat heaters (if equipped)
Press the switch to turn the seat heater on.
Hi
Mid
Lo
Off
■Seat ventilators (front seats only)
Press the switch to blow air from the seat.
Hi
Mid
Lo
Off
1
2
3
4
1
2
3
4
1
2
3
4
■The seat heater automatically switches from Hi → Mid → Lo → Off. The switching tim-
ing differs depending on the temperature inside the cabin etc. when the seat heater was
operated.
■ If the driving mode select switch is switched to Eco drive mode in cold temperatures, the
seat heater may be automatically operated to assist heating performance. (→ P. 4 8 )
GS450h_QG_U.book Page 77 Friday, January 20, 2012 5:54 PM