Page 4 of 600
TABLE OF CONTENTS4
GS450h_300h_OM_OM30F92E_(EE)5-1. Remote Touch screen
Remote Touch/12.3-inch display ......................................... 340
5-2. Using the air conditioning system and defogger
Front automatic air conditioning system .........346
Rear air conditioning system ......................................... 358
Heated steering wheel/ seat heaters/
seat ventilators .......................... 361
5-3. Using the interior lights Interior lights list..........................366
Page 21 of 600

21
Pictorial index
GS450h_300h_OM_OM30F92E_(EE) Seat heater switches
*2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 362
Seat ventilator switches *2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 362
Remote Touch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 340
Lexus parking assist-sensor switch *1, 2
Rear sunshade switch *2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 380
Driving mode select switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 311
Snow mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 225
EV drive mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
* 1
: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
*2
: If equipped
1
2
3
4
5
6
7
8
Page 29 of 600

29
Pictorial index
GS450h_300h_OM_OM30F92E_(EE) Rear sunshade switch
*2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 380
Lexus parking assist-sensor switch *1, 2
Remote Touch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 340
Seat heater switches *2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 362
Seat ventilator switches *2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 362
Driving mode select switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 311
Snow mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 225
EV drive mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
* 1
: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
*2
: If equipped
1
2
3
4
5
6
7
8
Page 78 of 600

781-2. Hybrid system
GS450h_300h_OM_OM30F92E_(EE)
■Regenerative braking
In the following situations, kinetic energy is converted to electric energy and decelera-
tion force can be obtained in conjunction with the recharging of the hybrid battery (trac-
tion battery).
●The accelerator pedal is released while driving with the shift lever in D or S.
●The brake pedal is depressed while driving with the shift lever in D or S.
■EV indicator
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop automati-
cally in the following conditions:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●When the temperature of the hybrid battery (traction battery) is high or low
●When the heater is switched on
■Charging the hybrid battery (traction battery)
As the gasoline engine charges the hybrid battery (traction battery), the battery does not
need to be charged from an outside source. However, if the vehicle is left parked for a
long time the hybrid battery (traction battery ) will slowly discharge. For this reason, be
sure to drive the vehicle at least once every few months for at least 30 minutes or 16 km
(10 miles). If the hybrid battery (traction battery) becomes fully discharged and you are
unable to start the hybrid system, contact any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
■Charging the 12-volt battery P. 533
■After the 12-volt battery has discharged or when the terminal has been removed and
installed during exchange, etc.
The gasoline engine may not stop even if the vehicle is being driven by the hybrid battery
(traction battery). If this continues for a few days, contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer.
The EV indicator comes on when the vehicle is
driven using only
the electric motor (traction
motor) or the gasoline engine is stopped.
Page 332 of 600

3324-6. Driving tips
GS450h_300h_OM_OM30F92E_(EE)
◆Delays
Repeated acceleration and deceleration, as well as long waits at traffic lights,
will lead to bad fuel economy. Check traffic reports before leaving and avoid
delays as much as possible. When driving in a traffic jam, gently release the
brake pedal to allow the vehicle to move forward slightly while avoiding over-
use of the accelerator pedal. Doing so can help control excessive gasoline
consumption.
◆Highway driving
Control and maintain the vehicle at a constant speed. Before stopping at a toll
booth or similar, allow plenty of time to release the accelerator and gently
apply the brakes. A greater amount of electrical energy can be regenerated
when slowing down.
◆Air conditioning
Use the air conditioning only when necessary. Doing so can help reduce
excessive gasoline consumption.
In summer: When the ambient temperature is high, use the recirculated air
mode. Doing so will help to reduce the burden on the air conditioning system
and reduce fuel consumption as well.
In winter: Because the gasoline engine will not automatically cut out until it
and the interior of the vehicle are warm, it will consume fuel. Also, fuel con-
sumption can be improved by avoiding overuse of the heater.
◆Checking tire inflation pressure
Make sure to check the tire inflation pressure frequently. Improper tire infla-
tion pressure can cause poor fuel economy.
Also, as snow tires can cause large amounts of friction, their use on dry roads
can lead to poor fuel economy. Use ti res that are appropriate for the season.
Page 339 of 600
339
5Interior features
GS450h_300h_OM_OM30F92E_(EE) 5-1. Remote Touch screen
Remote Touch/12.3-inch display ......................................... 340
5-2. Using the air conditioning system and defogger
Front automatic air conditioning system ......... 346
Rear air conditioning system ......................................... 358
Heated steering wheel/ seat heaters/
seat ventilators .......................... 361
5-3. Using the interior lights Interior lights list..........................366
Page 351 of 600

351
5-2. Using the air conditioning system and defogger
5
Interior features
GS450h_300h_OM_OM30F92E_(EE)
■Using the automatic mode
Press or select “AUTO” on the control screen.
Also, when selecting “FAST/ECO” or each time, the fan speed mode will be
changed as follows:
“NORMAL” “ECO” “FAST”
Press to switch to automatic air intake mode.
The air conditioning system automatically switches between outside air and recir-
culated air modes.
Adjust the temperature setting. ( P. 347)
To stop the operation, press the “OFF” button.
Air outlets and fan speed for the driver an d passenger seats may be adjusted sepa-
rately depending on the temperature setting.
When the front seat heaters and ventilators/rear seat heaters are set to AUTO
mode, the system is operated automatically according to the set temperature, out-
side temperature, etc.
■Automatic mode indicator
If the fan speed setting or air flow modes are operated, the automatic mode
indicator goes off. However, automatic mode for functions other than that
operated is maintained.
■Switching between outside air and recirculated air modes
Press . The mode switches among (recirculated air mode), automatic and
(outside air mode) modes each time the button is pressed.
When the system is switched to automatic mode, the air conditioning system oper-
ates automatically.
Air conditioning control
Other functions
1
2
3
Page 353 of 600

353
5-2. Using the air conditioning system and defogger
5
Interior features
GS450h_300h_OM_OM30F92E_(EE) Select on the control screen to display the rear air conditioning control
screen.
■Using the automatic mode
Select “REAR AUTO” on the screen.
The air conditioning system will operate, and air outlets and speed will be set auto-
matically.
When the rear seat heaters are set to automatic mode, the system is operated
automatically according to the set temperature, outside temperature, etc.
Adjust the temperature setting.
To stop the operation, select “REAR OFF”.
■Adjusting the temperature setting
Select to increase the temperature and to decrease the tempera-
ture.The air conditioning system switches between individual and simultaneous modes
each time “3-ZONE” on the control screen is selected.
■Disabling the switches on the rear armrest.
Select .
Rear seat heater switches ( P. 362) are also locked.
■Location of air outlets
The air outlets and air volume
changes according to the selected
air flow mode.
Changing the rear seat settings (w ith rear air conditioning system)
Air outlets
1
2