2018 Lexus GS450h air conditioning

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

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6-3. Do-it-yourself maintenanceDo-it-yourself service precautions................................ 349
Hood ................................................ 351
Positioning a floor jack ............ 352
Engine compartment ............... 353
12-volt battery ............................. 362
Tires ................................................. 365
Tire inflation pressure .............. 375
Wheels ........................................... 378
Air conditioning filter ...............380
Electronic key battery.............. 382
Checking and replacing fuses.............................................. 384
Headlight aim (vehicles with single-beam head lights) ...... 389
Light bulbs ......................................391
7-1. Essential information Emergency flashers .................. 396
If your vehicle has to be stopped in an emergency.... 397 7-2. Steps to take in an emergency
If your vehicle needs to be towed ............................... 398
If you think something is wrong................ 403
If a warning light turns on or a warning buzzer sounds .... 404
If a warning message is displayed ................................. 410
If you have a flat tire ....................441
If the hybrid system will not start ............................... 450
If the parking brake cannot be released................................ 452
If the electronic key does not operate properly..................... 454
If the 12-volt battery is discharged............................. 457
If your vehicle overheats...........461
If the vehicle becomes stuck ............................................. 466
7When trouble arises

17Pictorial index
GS450h_OM_OM30G62U_(U)
Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 95
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 95
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 109
When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 410
Parking brake switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 196
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 196
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 277
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 404, 406
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 195
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 200
Headlights/parking lights/tail lights/daytime running lights . . . . . . . . . . . . P. 200
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 207
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 207
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 361
Headlight cleaners
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 208, 210
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 430
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 396
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 128
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 351
Tilt and telescopic steering cont rol switch . . . . . . . . . . . . . . . . . . . . . . . . . . P. 153
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 153
Driving position memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 145
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 287
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 287
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 293
Audio system*2
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 130
*1: If equipped
*2: Refer to “NAVIGATION AND MULT IMEDIA SYSTEM OWNER’S MANUAL”.
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701-2. Hybrid system
GS450h_OM_OM30G62U_(U)
Hybrid system precautions
The illustration is an example for explanation and may differ from the actual item.
There are air intake vents on the both
sides of the rear seatback for the pur-
pose of cooling the hybrid battery
(traction battery). When the air intake
vents are blocked, battery operations
will be restricted, leading to poor fuel
economy.
Take care when handling the hybrid system, as it is a high voltage system
(about 650 V at maximum) as well as contains parts that become extremely
hot when the hybrid system is operating. Obey the warning labels attached to
the vehicle.
Warning label
Power control unit
Electric motor (traction motor)
Hybrid battery (traction battery) Service plug
High voltage cables (orange)
Air conditioning compressor
Hybrid battery (traction battery) air intake vents
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4-5. Using the driving support systems
Driving mode select switch
Normal mode/Customized mode
Normal mode and customized mode are selected by pressing the driving
mode select switch. Each time the switch is pressed, the driving mode
changes between normal mode and customized mode. When customized
mode is selected, the “Customize” or “CUSTOMIZE” indicator will be illumi-
nated.
Press the switch to change the driving mode to normal mode when Eco drive mode or
sport mode is selected.
• Normal mode
For normal driving.
• Customized mode
Allows you to drive with the power train, chassis and air conditioning system func-
tions set to your preferred settings.
Customized mode settings can only be changed on the drive mode customization
display of the Remote Touch screen. ( →P. 502)
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips that
involve frequent accelerating.
When not in Eco drive mode and the driving mode select switch is turned to the left,
the “ECO” or “ECO MODE” indicator come s on in the multi-information display.
The driving modes can be selected to suit driving condition.
Except
F SPORT models
F SPORT models
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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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4-6. Driving tips
Hybrid vehicle driving tips
◆Using Eco drive mode
When using Eco drive mode, the torque corresponding to the accelerator
pedal depression amount can be generated more smoothly than it is in normal
conditions. In addition, the operation of the air conditioning system (heating/
cooling) will be minimized, improving the fuel economy. ( →P. 258)
◆Use of Hybrid System Indicator
The Eco-friendly driving is possible by keeping the indicate of Hybrid System
Indicator within Eco area. ( →P. 92)
◆Shift lever operation
Shift the shift lever to D when stopped at a traffic light, or driving in heavy traf-
fic etc. Shift the shift lever to P when parking. When using the N, there is no
positive effect on fuel consumption. In the N, the gasoline engine operates but
electricity cannot be generated. Also, wh en using the air conditioning system,
etc., the hybrid battery (tractio n battery) power is consumed.
◆Accelerator pedal/brake pedal operation
●Drive your vehicle smoothly. Avoid ab rupt acceleration and deceleration.
Gradual acceleration and deceleration will make more effective use of the
electric motor (traction motor) withou t having to use gasoline engine power.
●Avoid repeated acceleration. Repeated acceleration consumes hybrid bat-
tery (traction battery) po wer, resulting in poor fuel consumption. Battery
power can be restored by driving with the accelerator pedal slightly released.
◆When braking
Make sure to operate the brakes gently and in a timely manner. A greater
amount of electrical energy can be regenerated when slowing down.
For economical and ecological driving, pay attention to the following points:

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.