air filter Lexus GS450h 2014 Owner's Manual

TABLE OF CONTENTS6
GS450h_OM_OM30D52U_(U)
6-3. Do-it-yourself maintenanceDo-it-yourself service precautions.................................657
Hood ............................................... 660
Positioning a floor jack............... 661
Engine compartment ............... 663
12-volt battery ..............................673
Tires................................................... 677
Tire inflation pressure ............... 687
Wheels ........................................... 690
Air conditioning filter ............... 692
Electronic key battery.............. 694
Checking and replacing fuses.............................................. 696
Headlight aim ................................. 711
Light bulbs ......................................713
7-1. Essential information Emergency flashers .................. 728
If your vehicle has to be stopped in an emergency.....729 7-2. Steps to take in an emergency
If your vehicle needs to be towed................................ 730
If you think something is wrong .................736
If a warning light turns on or a warning buzzer sounds...... 737
If a warning message is displayed ................................. 747
If you have a flat tire ...................775
If the hybrid system will not start ............................... 788
If the shift lever cannot be shifted from P ..................... 790
If the parking brake cannot be released .................................. 791
If the electronic key does not operate properly ......................793
If the 12-volt battery is discharged..............................796
If your vehicle overheats ........ 800
If the vehicle becomes stuck .............................................805
7When trouble arises
GS450h_OM_OM30D52U_(U).book Page 6 Monday, July 29, 2013 12:07 PM

GS450h_OM_OM30D52U_(U)
3915-2. Using the air conditioning system and defogger
5
Interior features
Fan speed control
Air flows to the feet and the
windshield defogger operates.
Outside temperature
Right-hand front seat side tem-
perature control
Right-hand front seat side tem-
perature display
Front seat air outlet selector
Micro dust and pollen filter
DUAL/3-ZONE mode
Cooling and dehumidification
function on/off
Left-hand front seat side tem-
perature displayLeft-hand front seat side tem-
perature control
Windshield defogger
Outside air or recirculated
mode
Air outlet selector
S-FLOW mode
Off
Automatic mode
Left-hand front seat side air out-
let selector
Rear air conditioning operation
screen
Right-hand front seat side air
outlet selector1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
GS450h_OM_OM30D52U_(U).book Page 391 Monday, July 29, 2013 12:07 PM

398
GS450h_OM_OM30D52U_(U)
5-2. Using the air conditioning system and defogger
■Disabling the switches on the rear armrest.
Select .
Rear seat heater switches (→P. 6 1 6 )
are also locked.
Operates micro dust and pollen fil-
ter on/off.
Outside air mode switches to
(recirculated air) mode. Pollen is
removed from the air and the air flows
to the upper part of the body.
Usually the system will turn off auto-
matically after approximately 1 to 3
minutes.
Operates S-FLOW mode on/off.
When the S-FLOW mode button is
pressed, the airflow changes as fol-
lows.
Without rear air conditioning system:
Air flows to the front seats only.
With rear air conditioning system: Air
flows to the front seats only, and if the
passenger seat is unoccupied, the set
temperature, outside humidity and
temperature inside the cabin are
assessed, and air flows to the driver
seat only.
Micro dust and pollen filter button
S-FLOW mode button
GS450h_OM_OM30D52U_(U).book Page 398 Monday, July 29, 2013 12:07 PM

GS450h_OM_OM30D52U_(U)
4015-2. Using the air conditioning system and defogger
5
Interior features
■Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set the outside/
recirculated air mode button to the recirculated air mode. This is effective in pre-
venting outside air from entering the vehicle interior. During cooling operation, set-
ting the recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may automatically switch depending on the tem-
perature setting or the inside temperature.
■When the outside temperature exceeds 75°F (24°C) and the air conditioning sys-
tem is on
●In order to reduce the air conditioning power consumption, the air conditioning
system may switch to recirculated air mode automatically. This may also reduce
fuel consumption.
●Recirculated air mode is selected as a default mode when the power switch is
turned on.
●It is possible to switch to outside air mode at any time by pressing .
■Automatic mode for air intake control
In automatic mode, the system detects exhaust gas and other pollutants and auto-
matically switches between outside air and recirculated air modes.
When the dehumidification function is off, and the fan is operating, turning automatic
mode on will activate the dehumidification function.
■Micro dust and pollen filter
●In order to prevent the windshield from fogging up when the outside air is cold, the
following may occur:
• Outside air mode does not switch to (recirculated air) mode.
• The dehumidification function operates.
• The operation cancels after approximately 1 minute.
●In rainy weather, the windows may fog up. Press .
●In extremely humid weather, the windows may fog up.
●The pollens are filtered out even if the micro dust and pollen filter is turned off.
■When the S-FLOW mode operates
If air flows to the driver’s seat only, the temperature setting for the front passenger’s
seat is not displayed.
GS450h_OM_OM30D52U_(U).book Page 401 Monday, July 29, 2013 12:07 PM

402
GS450h_OM_OM30D52U_(U)
5-2. Using the air conditioning system and defogger
■Operation of the air conditioning system in Eco drive mode
In the Eco drive mode, the air conditioning system is controlled as follows to priori-
tize fuel efficiency:
●Engine speed and compressor operation controlled to restrict heating/cooling
capacity
●Fan speed restricted when automatic mode is selected
To improve air conditioning performance, perform the following operations:
●Adjust the fan speed
●Turn off Eco drive mode
■When the outside temperature falls to nearly 32 °F (0 °C)
The dehumidification function may not operate even when is selected.
■Air conditioning odors
●During use, various odors from inside and outside the vehicle may enter into and
accumulate in the air conditioning system. This may then cause odor to be emitted
from the vents.
●To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time immedi- ately after the air conditioning system is started in automatic mode.
■Air conditioning filter
→ P. 6 9 2
■Customization
Settings (e.g. exhaust gas sensor sensitivity) can be changed.
(Customizable features: → P. 8 3 3 )
GS450h_OM_OM30D52U_(U).book Page 402 Monday, July 29, 2013 12:07 PM

641
GS450h_OM_OM30D52U_(U)
6Maintenance and care
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ................. 642
Cleaning and protecting the vehicle interior ..................646
6-2. Maintenance Maintenance requirements ...649
General maintenance .............. 652
Emission inspection and maintenance (I/M)
programs ....................................656 6-3. Do-it-yourself maintenance
Do-it-yourself service precautions................................ 657
Hood ...............................................660
Positioning a floor jack ...............661
Engine compartment ............... 663
12-volt battery...............................673
Tires...................................................677
Tire inflation pressure ............... 687
Wheels ...........................................690
Air conditioning filter ............... 692
Electronic key battery .............. 694
Checking and replacing fuses.............................................. 696
Headlight aim ................................. 711
Light bulbs.......................................713
GS450h_OM_OM30D52U_(U).book Page 641 Monday, July 29, 2013 12:07 PM

GS450h_OM_OM30D52U_(U)
6596-3. Do-it-yourself maintenance
6
Maintenance and care
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious
injury, observe the following precautions.
■When working on the engine compartment
●Make sure that the “POWER ON” on the multi-information display and the
“READY” indicator are both off.
●Keep hands, clothing and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, power control unit, radiator, exhaust manifold,
etc. right after driving as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes are flam-
mable.
■When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, the electric cooling fans may automatically
start to run if the air conditioning is on and/or the coolant temperature is high.
(→ P. 6 7 0 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from get-
ting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to
dirt in the air.
GS450h_OM_OM30D52U_(U).book Page 659 Monday, July 29, 2013 12:07 PM

692
GS450h_OM_OM30D52U_(U)
6-3. Do-it-yourself maintenance
Air conditioning filter
Turn the power switch off.
Open the glove box. Lift up the
side with the stay, disconnect the
stay tabs and remove the parti-
tion by pulling horizontally.
Press the tabs and remove the fil-
ter cover.
Press the tabs and remove the fil-
ter case.
The air conditioning filter must be changed regularly to maintain air
conditioning efficiency.
Removal method
1
2
3
4
GS450h_OM_OM30D52U_(U).book Page 692 Monday, July 29, 2013 12:07 PM

GS450h_OM_OM30D52U_(U)
6936-3. Do-it-yourself maintenance
6
Maintenance and care
Remove the air conditioning filter
from the filter case and replace it
with a new one.
The “↑UP” marks shown on the filter
and the filter case should be pointing
up.
■Changing interval
Inspect and replace the air conditioning filter according to the maintenance sched-
ule. In dusty areas or areas with heavy traffic flow, early replacement may be
required. (For scheduled maintenance information, please refer to the “Owner’s
Manual Supplement” or “Scheduled Maintenance”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
5
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the system.
GS450h_OM_OM30D52U_(U).book Page 693 Monday, July 29, 2013 12:07 PM

GS450h_OM_OM30D52U_(U)
7036-3. Do-it-yourself maintenance
6
Maintenance and care
*: Low beam and high beam are the same bulb. (vehicles with discharge headlights)
52ABS NO.130Motor relay
53ECU-B NO.27. 5No circuit
54DEICER25Windshield wiper de-icer
55ABS MAIN 310Brake system
56FILTER10Condenser
57A/C W/P7. 5Air conditioning system
58SPARE10Spare fuse
59SPARE30Spare fuse
60SPARE20Spare fuse
FuseAmpereCircuit
GS450h_OM_OM30D52U_(U).book Page 703 Monday, July 29, 2013 12:07 PM