2015 Lexus GS450h air conditioning

TABLE OF CONTENTS4
GS450h_OM_OM30F70U_(U)
5-1. Remote Touch screenRemote Touch/12.3-inch display.......................................... 326
5-2. Using the air conditioning system and defogger
Front automatic air conditioning system......... 335
Rear air conditioning system .......................................... 355
Rear window and outside rear view mirror defoggers .......... 360
Windshield wiper de-icer......... 361
5-3. Using the interior lights Interior lights list ......................... 363• Interior light ............................ 364
• Personal lights ....................... 364
5-4. Using the storage features List of storage features ............ 366• Glove box ............................... 368
• Console box .......................... 369
• Cup holders ........................... 370
• Auxiliary boxes ......................372
Trunk features ...............................373 5-5. Other interior features
Sun visors and vanity mirrors ....................375
Clock ............................................... 376
Ashtrays .......................................... 377
Power outlets ................................378
Heated steering wheel ............380
Seat heaters/ seat ventilators ......................... 382
Armrest.......................................... 386
Rear sunshade/ rear door sunshades.............. 387
Coat hooks ................................... 390
Assist grips .................................... 391
Utility hook ................................... 392
Garage door opener ............... 393
LEXUS Enform Safety Connect......................................400
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ................408
Cleaning and protecting the vehicle interior.................... 412
6-2. Maintenance Maintenance requirements .....415
General maintenance................418
Emission inspection and maintenance (I/M)
programs .....................................422
5Interior features
6Maintenance and care

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6-3. Do-it-yourself maintenanceDo-it-yourself service precautions................................ 423
Hood ............................................... 426
Positioning a floor jack..............427
Engine compartment ............... 429
12-volt battery ............................. 439
Tires.................................................. 443
Tire inflation pressure ............... 453
Wheels ........................................... 456
Air conditioning filter ............... 458
Electronic key battery.............. 460
Checking and replacing fuses.............................................. 462
Headlight aim ............................... 477
Light bulbs .....................................479
7-1. Essential information Emergency flashers .................. 494
If your vehicle has to be stopped in an emergency.... 495 7-2. Steps to take in an emergency
If your vehicle needs to be towed................................ 496
If you think something is wrong ................ 502
If a warning light turns on or a warning buzzer sounds..... 503
If a warning message is displayed ..................................513
If you have a flat tire ....................541
If the hybrid system will not start ............................... 554
If the shift lever cannot be shifted from P ..................... 556
If the parking brake cannot be released .................................557
If the electronic key does not operate properly ..................... 559
If the 12-volt battery is discharged............................. 562
If your vehicle overheats ......... 566
If the vehicle becomes stuck ............................................... 571
7When trouble arises

19Pictorial index
GS450h_OM_OM30F70U_(U)
Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 96
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 96
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 111
When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . .P. 513
Parking brake switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 211
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 211
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 319
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 513
Turn signal lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 209
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 217
Headlights/parking lights/tail lights/daytime running lights . . . . . . . . . . . P. 217
Fog lights
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
Windshield wiper and washer switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 223
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 223
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 438
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 530
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 494
Trunk opener. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 1 4 3
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 426
Tilt and telescopic steering contro l switch . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 161
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 161
Driving position memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 152
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 335
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 335
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 360
Audio system
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Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 144
*1: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
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761-2. Hybrid system
GS450h_OM_OM30F70U_(U)
Hybrid system precautions
Take care when handling the hybrid system, as it contains a high voltage
system (about 650 V at maximum) as well as parts that become
extremely hot when the hy brid system is operating. Obey the caution
labels attached to the vehicle.
Caution label
Power control unit
Electric motor (traction motor)
Hybrid battery (traction bat-
tery) Service plug
High voltage cables (orange)
Air conditioning compressor1
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4-5. Using the driving support systems
■Operation of the air conditioning system in Eco drive mode
Eco drive mode controls the heating/cooling operations and fan speed of the air
conditioning system to enhance fuel efficiency ( P. 335). To improve air condition-
ing performance, adjust the fan sp eed or turn off Eco drive mode.
■Automatic operation of the seat heater during Eco drive mode
Eco drive mode controls the heating operation and fan speed of the air conditioning
system 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 heating performance.
■Sport mode automatic deactivation
Sport mode is automatically deactivated if th e power switch is turned off after driving
in sport mode.

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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 acceler-
ator pedal depression amount can be generated more smoothly than it
is in normal conditions. In addition, the operatio n of the air conditioning
system (heating/cooling) will be mini mized, improving the fuel econ-
omy. ( P. 280)
◆Use of Hybrid System Indicator
The Eco-friendly driving is possible by keeping the indicate of Hybrid
System Indicator within Eco area. ( P. 9 4 )
◆When braking the vehicle
Make sure to operate the brakes gently and in good time. A greater
amount of electrical energy can be retained when slowing down.
◆Delays
Repeated acceleration and decelerati on, as well as long waits at traffic
lights, will lead to bad fuel consumption. Check traffic reports before
leaving and avoid delays as much as possible. When encountering a
delay, gently release the brake pedal to allow the vehicle to move for-
ward slightly while avoiding overuse of the accelerator pedal. Doing so
can help control excessive gasoline consumption.
◆Highway driving
Control your speed and keep at a constant speed. Also, before stop-
ping at a toll booth or similar, allow plenty of time to release the acceler-
ator and gently apply the brakes. A greater amount of electrical energy
can be retained when slowing down.
For economical and ecological drivin g, pay attention to the following
points:

GS450h_OM_OM30F70U_(U)
3174-6. Driving tips
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Driving
◆Air conditioning
Use the air conditioning only when necessary. Doing so can help con-
trol excessive gasoline consumption.
In summer: In high temperatures, use the recirculated air mode. Doing
so will help to reduce the burden on the air conditioner and reduce fuel
consumption as well.
In winter: Because the gasoline eng ine will not automatically cut out
until the gasoline engine and the interi or of the vehicle are warm, it will
consume fuel. Also, fuel consumption can be improved by avoiding
overuse of the heater.
◆Checking tire inflation pressure
Make sure to check the tire inflation pressure frequently. Improper tire
inflation pressure can cause poor fuel consumption.
Also, as snow tires can cause large amounts of friction, their use on dry
roads can lead to poor fuel consump tion. Use a tire that is appropriate
for the season.
◆Luggage
Carrying heavy luggage can lead to poor fuel consumption. Avoid car-
rying unnecessary luggage. Installing a large roof rack can also cause
poor fuel consumption.
◆Warming up before driving
Since the gasoline engine starts up and cuts out automatically when
cold, warming up the engine is unne cessary. Moreover, frequently driv-
ing short distances will cause the engine to repeatedly warm up, which
can lead to poor fuel consumption.

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5Interior features
5-1. Remote Touch screen Remote Touch/12.3-inch display .......................................... 326
5-2. Using the air conditioning system and defogger
Front automatic air conditio ning system .........335
Rear air conditioning system ..........................................355
Rear window and outside rear view mirror defoggers.......... 360
Windshield wiper de-icer ........ 361
5-3. Using the interior lights Interior lights list..........................363
• Interior light ............................364
• Personal lights........................364
5-4. Using the storage features List of storage features.............366
• Glove box............................... 368
• Console box ...........................369
• Cup holders............................ 370
• Auxiliary boxes...................... 372
Trunk features .............................. 373 5-5. Other interior features
Sun visors and vanity mirrors ................... 375
Clock................................................ 376
Ashtrays ..........................................377
Power outlets ............................... 378
Heated steering wheel ........... 380
Seat heaters/ seat ventilators .........................382
Armrest ..........................................386
Rear sunshade/ rear door sunshades .............. 387
Coat hooks ...................................390
Assist grips..................................... 391
Utility hook.................................... 392
Garage door opener................ 393
LEXUS Enform Safety Connect ..................................... 400