air conditioning LEXUS LS600H 2017 Workshop Manual

5296-3. Do-it-yourself maintenance
6
Maintenance and care
LS600h/LS600hL_EE(OM50G20E)
■Front air conditioning filter
Set the air conditioning system to recirculated air mode. ( P. 408)
The air conditioning filter case cannot be removed with the system in outside
air mode.
Turn the power switch off.
Open the glove box. Remove the partition. ( P. 433)
Remove the filter cover.
Remove the filter case.
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air
conditioning efficiency.
Removal method
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5306-3. Do-it-yourself maintenance
LS600h/LS600hL_EE(OM50G20E)
Remove the air conditioning
filter from the filter case and
replace it with a new one.
The “ UP” marks shown on the fil-
ter and the filter case should be
pointing up.
Reset the air conditioning filter maintenance data. ( P. 531)
■Rear air conditioning filter (if equipped)
Turn the power switch off.
Open the trunk lid. Remove
the filter cover.
Remove the air conditioning
filter and replace it with a new
one.
The “ UP” mark shown on the filter
should be pointing up.
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5316-3. Do-it-yourself maintenance
6
Maintenance and care
LS600h/LS600hL_EE(OM50G20E)
■Checking interval
Front air conditioning filter
Inspect and replace the air conditioning filter when a message is appeared on the
multi-information display. In dusty areas or areas with heavy traffic flow, early
replacement may be required. (For scheduled maintenance information, please
refer to the “Lexus Service Booklet” or “Lexus Warranty Booklet”.)
Rear air conditioning filter (if equipped)
Replace every 15000 km (9000 miles).
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
■After changing the front air conditioning filter
The front air conditioning filter maintenance data should be reset. Perform the fol-
lowing procedures:
Turn the power switch to ON mode.
Press and hold (on the air conditioning panel) for 4 seconds or more.
A buzzer will sound to indicate that the maintenance data has been successfully
reset.
■Rear air conditioning filter (if equipped)
If it is necessary to clean or replace the filter, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
■Climate control seat filter (if equipped)
Filters are installed in the seats. When it is necessary to clean or replace the filters,
contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
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.
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5547-2. Steps to take in an emergency
LS600h/LS600hL_EE(OM50G20E)
●Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points higher
than normal.
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the hybrid system
●Engine missing, stumbling or running roughly
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy feeling, pedal almost touches the
floor
If you think something is wrong
If you notice any of the followin g symptoms, your vehicle probably
needs adjustment or repair. Cont act any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional as soon as
possible.
Visible symptoms
Audible symptoms
Operational symptoms

6117-2. Steps to take in an emergency
7
When trouble arises
LS600h/LS600hL_EE(OM50G20E)
●The needle of the engine coolant temperature gauge ( P. 115) enters
the red zone or a loss of hybrid system power is experienced. (For
example, the vehicle speed does not increase.)
●“Hybrid System Overheat” is shown on the multi-information display.
●Steam comes out from under the hood.
■If the needle of the engine cool ant temperature gauge enters the red
zone
Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled down sufficiently,
inspect the hoses and radiator
core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact any
authorized Lexus dealer or
repairer, or anot her duly quali-
fied and equipped professional.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
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6137-2. Steps to take in an emergency
7
When trouble arises
LS600h/LS600hL_EE(OM50G20E)
Start the hybrid system and turn the air conditioning system on to
check that the radiator cooling fan operates and to check for coolant
leaks from the radiator or hoses.
The fan operates when the air conditioning system is turned on immediately
after a cold start. Confirm that the fan is operating by checking the fan sound
and air flow. If it is difficult to check these, turn the air conditioning system on
and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fan is not operating:
Stop the hybrid system immediat ely and contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional.
If the fan is operating:
Have the vehicle inspected at the nearest any authorized Lexus
dealer or repairer, or another duly qualified and equipped profes-
sional.
■If “Hybrid System Overheat” is shown on the multi-information dis-
play
Stop the vehicle in a safe place.
Stop the hybrid system an d carefully lift the hood.
After the hybrid system has
cooled down, inspect the
hoses and radiator core (radia-
tor) for any leaks.
Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact any
authorized Lexus dealer or
repairer, or anot her duly quali-
fied and equipped professional.
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643
8
8-2. Customization
Vehicle specifications
LS600h/LS600hL_EE(OM50G20E)
Automatic
air condi-
tioning sys-
tem
( P. 399)
Switching between out-
side air and recirculated air
mode linked to “AUTO”
switch operation
OnOffO—O
A/C Auto switch opera-
tionOnOffO—O
Exhaust gas sensor sensi-
tivityStandard-3 to 3O—O
Air conditioning control of
Eco drive modeOnOff——O
Climate
control
seats*2/
seat heat-
ers*2
( P. 456)
Front climate control seat/
seat heater temperature
adjustment during auto-
matic operation (individual
seat adjustment available)
Level 3
(standard)
Level 1
(cool) to
level 5
(warm)
O—O
Rear climate control seat/
rear seat heater start-up
conditions when power
switch is in the ON posi-
tion (individual seat adjust-
ment available)
OffOn
(AUTO)O—O
Function that warms seats
faster than usual (individual
seat adjustment available)
OnOff——O
Time until function that
warms seats faster than
usual turns off (individual
seat adjustment available)
Standard
Short
——O
Long
Heated
steering
wheel*2
( P. 454)
Automatic steering wheel
heatingOnOffO—O
Time until automatic steer-
ing wheel heating turns off
Level 3
(standard)
Level 1
(short) to
level 5
(long)
O—O
ItemFunctionDefault
setting
Custom-
ized setting123

654
LS600h/LS600hL_EE(OM50G20E)
Alphabetical index
Alphabetical index
A/C
Air conditioning filter........................ 529
Front automatic air
conditioning system ......................399
Rear air conditioning system ........ 418
ABS (Anti-lock Brake System) ...... 338
Function ..................................................338
Warning light ...................................... 556
Adaptive Front-lighting System
(AFS) ......................................................271
Adaptive High-beam System
(AHS) ..................................................... 273
AFS (Adaptive Front-lighting
System) ...................................................271
AHS (Adaptive High-beam
System) .................................................. 273
Air conditioning filter .......................... 529
Air conditioning system
Air conditioning filter........................ 529
Front automatic air
conditioning system ......................399
Rear air conditioning system ........ 418
Airbags ........................................................ 49
Airbag manual on-off system........... 61
Airbag operating conditions .......... 56
Airbag precautions for
your child ...............................................52
Airbag warning light ........................ 556
Correct driving posture..................... 42
Curtain shield airbag operating
conditions ............................................. 56
Curtain shield airbag
precautions ...........................................52
General airbag precautions ............52
Locations of airbags ............................49
Modification and disposal of
airbags.................................................... 55
Side airbag operating
conditions ............................................. 56
Side airbag precautions.....................52
Side and curtain shield airbags
operating conditions ....................... 56
Side and curtain shield airbags
precautions ...........................................52
SRS airbags ..............................................49
Airbag manual on-off system ............... 61
A

660Alphabetical index
LS600h/LS600hL_EE(OM50G20E)
Engine compartment cover .............493
Engine coolant .......................................498
Capacity ................................................. 627
Checking .............................................. 498
Preparing and checking
before winter ....................................384
Engine coolant temperature
gauge.........................................................115
Engine oil.................................................. 495
Capacity ................................................. 624
Checking ...............................................495
Preparing and checking
before winter ....................................384
Engine switch ......................................... 247
EPS (Electric Power Steering)........339
Function ..................................................339
Warning light ....................................... 557
EV drive mode ....................................... 252
First-aid kit storage belt ..................... 444
Flat tire
Vehicles with a spare tire .............. 567
Vehicles without a spare tire ....... 578
Floor mats ................................................... 40
Fluid
Brake ....................................................... 630
Hybrid transmission ......................... 628
Washer.....................................................501
Fog lights .................................................. 280
Replacing light bulbs ........... 542, 543
Switch ...................................................... 280
Wattage ................................................... 631
Follow me home system .................... 270
Footwell light ...........................................427
Front automatic air
conditioning system ......................... 399
Front fog lights ....................................... 280
Replacing light bulbs ....................... 543
Switch ...................................................... 280
Front position lights ............................. 269
Light switch........................................... 269
Replacing light bulbs ....................... 543
Welcome light illumination
control ...................................................150
F

661Alphabetical index
LS600h/LS600hL_EE(OM50G20E)
Front seats ................................................ 187
Adjustment..............................................187
Cleaning................................................ 480
Climate control seat .........................456
Correct driving posture .................... 42
Driving position memory ............... 207
Head restraints...................................... 214
Power easy access system ............ 190
Seat position memory ..................... 207
Front turn signal lights......................... 262
Replacing light bulbs........................ 543
Turn signal lever ................................. 262
Fuel .............................................................285
Capacity ................................................. 622
Fuel gauge................................................ 115
Information ............................................ 632
Refueling ................................................285
Type .............................................. 622, 632
Warning light ...................................... 558
Fuel consumption
Average fuel consumption ............. 124
Average fuel consumption
after refueling ..................................... 124
Current fuel consumption............... 124
Fuel filler door ........................................285
If the fuel filler door
cannot be opened ........................ 288
Refueling ................................................285
Fuses ..........................................................535
Gauges ........................................................ 115
Glove box................................................ 433
Head restraints ........................................ 214
Active head restraint.......................... 215
Adjustment ............................................ 214
Pre-crash intelligent head
restraint ............................................... 360
Headlight cleaner................................. 284
Headlights ............................................... 269
Adaptive Front-lighting
System (AFS)..................................... 271
Adaptive High-beam System
(AHS) ...................................................273
Follow me home system................ 270
Light switch........................................... 269
Replacing light bulbs ....................... 543
Heaters
Front automatic air
conditioning system ..................... 399
Heated steering wheel ................... 454
Outside rear view mirrors ............ 425
Rear air conditioning system ......... 418
Seat heaters.......................................... 457
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