2018 Lexus GS450h heater

TABLE OF CONTENTS4
GS450h_OM_OM30G62U_(U)
5-1. Remote Touch screenRemote Touch/12.3-inch display.......................................... 282
5-2. Using the air conditioning system and defogger
Front automatic air conditioning system ........ 287
Rear air conditioning system.......................................... 298
Heated steering wheel/ seat heaters/seat
ventilators.................................... 301
5-3. Using the interior lights Interior lights list ......................... 304• Interior lights ..........................305
• Personal lights.......................305
5-4. Using the storage features List of storage features ............ 307• Glove box ...............................308
• Console box ..........................308
• Cup holders ...........................309
• Auxiliary boxes ........................ 311
Trunk features ...............................312 5-5. Using the other interior features
Other interior features ..............314• Sun visors ..................................314
• Vanity mirrors .........................314
• Clock ..........................................315
• Power outlets ..........................315
• Armrest...................................... 317
•Rear sunshade/rear door sunshades ........... 318
• Coat hooks............................. 320
• Assist grips ............................. 320
Garage door opener .................321
LEXUS Enform Safety Connect...................................... 329
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 336
Cleaning and protecting the vehicle interior.................. 340
6-2. Maintenance Maintenance requirements ............................ 343
General maintenance.............. 345
Emission inspection and maintenance (I/M)
programs.................................... 348
5Interior features
6Maintenance and care

21Pictorial index
GS450h_OM_OM30G62U_(U)
Seat heater switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 302
Seat ventilator switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 302
Remote Touch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 282
Intuitive parking assist switch
*1, 2
Rear sunshade switch*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 318
Driving mode select switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
Snow mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 190
EV drive mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 187
*1: Refer to “NAVIGATION AND MULT IMEDIA SYSTEM OWNER’S MANUAL”
*2: If equipped
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681-2. Hybrid system
GS450h_OM_OM30G62U_(U)
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automati cally. 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 ou tside source. However, if the vehicle is left parked for a
long time the hybrid battery (traction batter y) will slowly discharge. For this reason, be
sure to drive the vehicle at least once every few months for at least 30 minutes or 10
miles (16 km). If the hybrid battery (traction battery) beco mes fully discharged and you
are unable to start the hybrid system, contact your Lexus dealer.
■Charging the 12-volt battery
→ P. 459
■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 fo r a few days, contact your Lexus dealer.
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sound or vibration even though the vehicle is able to move with
the “READY” indicator is illuminated. For sa fety, apply the parking brake and make sure
to shift the shift lever to P when parked.
The following sounds or vibrations may occu r when the hybrid system is operating and
are not a malfunction:
●Motor sounds may be heard from the engine compartment.
●Sounds may be heard from the hybrid battery (traction battery) behind the rear seats
when the hybrid system starts or stops.
●Relay operating sounds such as a snap or so ft clank will be emitted from the hybrid bat-
tery (traction battery), behind the rear se ats, when the hybrid system is started or
stopped.
●Sounds from the hybrid system may be heard when the trunk lid is open.
●Sounds may be heard from the transmission wh en the gasoline engine starts or stops,
when driving at low spee ds, or during idling.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard due to regenerative braking when the brake pedal is depressed
or as the accelerator pedal is released.
●Vibration may be felt when the ga soline engine starts or stops.
●Cooling fan sounds may be heard from the air intake vents on the both sides of the rear
seatback.

GS450h_OM_OM30G62U_(U)
2594-5. Using the driving support systems
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Driving
Sport mode•SPORT S mode
Assists acceleration response by co ntrolling the transmission and engine.
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. ( →P. 93)
•SPORT S+ mode
Helps to ensure steering performanc e and driving stability by simultane-
ously controlling the steering and suspension in addition to the hybrid sys-
tem. Suitable for sporty driving.
When 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.
■Operation of the air conditioning system in Eco drive mode
Eco drive mode controls the heating/cooling operations and fan speed of the air condi-
tioning system to enhance fuel efficiency. To improve air conditioning performance, per-
form the following operations:
●Turn off eco air conditioning mode (→P. 289)
●Adjust the fan speed ( →P. 288)
●Turn off Eco drive mode
■Automatic operation of the seat heater during Eco drive mode
Eco drive mode controls the heating operatio n and fan speed of the air conditioning sys-
tem to enhance fuel efficiency. If the driving mode select switch is switched to Eco drive
mode in cold temperatures, the seat heater will be automatically operated to assist heat-
ing performance.
■Automatic deactivation of sport mode and customized mode
If the power switch is turned off after driv ing in sport mode or customized mode, the
drive mode will be changed to normal mode.
■Driving mode pop-up display
When the driving mode is changed, the sele cted driving mode will be temporarily dis-
played on the side display. ( →P. 285)
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GS450h_OM_OM30G62U_(U)
2754-6. Driving tips
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Driving
◆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 drivin g 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 co nstant speed. Before stopping at a toll
booth or similar, allow plenty of ti me 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 av oiding overuse of the heater.
◆Checking tire inflation pressure
Make sure to check the tire inflation pr essure frequently. Improper tire infla-
tion pressure can cause poor fuel economy.
Also, as snow tires can cause large amou nts of friction, their use on dry roads
can lead to poor fuel economy. Use tires that are appropriate for the season.
◆Luggage
Carrying heavy luggage will lead to poor fuel economy. Avoid carrying
unnecessary luggage. Installing a large roof rack will also cause poor fuel
economy.
◆Warming up before driving
Since the gasoline engine starts up an d cuts out automatically when cold,
warming up the engine is unnecessary. Moreover, frequently driving short dis-
tances will cause the engine to repeated ly warm up, which can lead to excess
fuel consumption.

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GS450h_OM_OM30G62U_(U)
5Interior features
5-1. Remote Touch screen Remote Touch/12.3-inch display ..........................................282
5-2. Using the air conditioning system and defogger
Front automatic air conditio ning system .........287
Rear air conditioning system ......................................... 298
Heated steering wheel/ seat heaters/seat
ventilators .................................... 301
5-3. Using the interior lights Interior lights list......................... 304• Interior lights ......................... 305
• Personal lights ...................... 305 5-4. Using the storage features
List of storage features ............ 307
• Glove box .............................. 308
• Console box.......................... 308
• Cup holders ...........................309
• Auxiliary boxes ........................ 311
Trunk features .............................. 312
5-5. Using the other interior features Other interior features ............. 314• Sun visors ................................. 314
• Vanity mirrors ........................ 314
• Clock ......................................... 315
• Power outlets.......................... 315
• Armrest ......................................317
•Rear sunshade/rear door sunshades............ 318
• Coat hooks .............................320
• Assist grips..............................320
Garage door op ener ................ 321
LEXUS Enform Safety Connect ...................................... 329

GS450h_OM_OM30G62U_(U)
2895-2. Using the air conditioning system and defogger
5
Interior features
Adjust the left-hand side temperature setting
Select the air flow to the feet an d operate the windshield defogger
Adjust the fan speed setting
Select the air flow mode
* (the front seats)
Function on/off indicators on the option control screen
Display the option control screen ( →P. 290)
Adjust the right-hand side temperature setting
Set eco air conditioning mode ( →P. 296)
Air conditioning and heater output is limited to prioritize fuel economy.
Adjust the temperature for the driver ’s and front passenger’s seats sepa-
rately (DUAL mode) ( →P. 288)
Set cooling and dehumidification function on/off
Select to set automatic mode on/off
Select the air flow mode
* (the left-hand side)
Select the air flow mode
* (the right-hand side)
Display the rear air conditioning operation screen ( →P. 291)
Adjust the temperature for the driver’s, front passenger’s and rear seats
(→ P. 298) separately (3-ZONE mode) ( →P. 288)
To adjust or select settings, move the Remote Touch knob to select the
screen button, and then press the Re mote Touch knob or the “ENTER” but-
ton of Remote Touch to enter the selected function.
Control screen
Without rear air conditioning systemWith rear air conditioning system
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GS450h_OM_OM30G62U_(U)
5-2. Using the air conditioning system and defogger
■Using the automatic mode
Press or select “AUTO” on the control screen.
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. 288)
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 ventilat ors/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, automati c mode for functions other than that
operated is maintained.
Air conditioning control
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