2020 LEXUS LX570 air conditioning

505
LX570_OM_OM60R61U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Air conditioning filter
Turn the engine switch IGNITION ON mode and switch to recirculated air
mode, then turn the engine switch off.
Open the glove box and remove the separate tray. (
P. 429)
Remove the filter cover.
Remove the filter case.
The air conditioning filter must be cl eaned or changed regularly to maintain
air conditioning efficiency.
Removal method
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506
LX570_OM_OM60R61U_(U)6-3. Do-it-yourself maintenance
If the filter is dirty, clean by blowing
compressed air through the filter from
the downward side.
Hold the air gun 2 in. (5 cm) from the fil-
ter and blow for approximately 2 min-
utes at 72 psi (500 kPa, 5.0 kgf/cm
2 or
bar).
If it is not availa ble, have the filter
cleaned by your Lexus dealer.
Remove the air conditioning filter and
replace it with a new one.
The “ UP” marks shown on the filter
should be pointing up.
■Checking interval
Inspect, clean and replace the air conditio ning filter according to the maintenance
schedule. In dusty areas or area s with heavy traffic flow, more frequent cleaning or 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.
Cleaning method
Replacement method
NOTICE
■To prevent damage to the system
●When using the air conditioning system, make sure that a filter is always installed.
●When cleaning the filter, do not clean the filter with water.

523
LX570_OM_OM60R61U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If you think something is wrong
●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 nor-
mal
●Engine oil pressure gauge contin ually points lower than normal
●Voltmeter continually points higher or lower 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 engine
●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 notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

557
LX570_OM_OM60R61U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If your vehicle overheats
Stop the vehicle in a safe place and turn off the air conditioning system, and
then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled down suff iciently, inspect the hoses and radiator
core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Lexus
dealer.
The following may indicate that your vehicle is overheating.
●The needle of the engine coolant temperature gauge ( P. 92) enters the
red zone or a loss of engine power is experienced. (For example, the vehicle
speed does not increase.)
●Steam is coming from under the hood.
Correction procedures
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5587-2. Steps to take in an emergency
LX570_OM_OM60R61U_(U)
The coolant level is satisfactory if it is between the “F” and “L” lines on the res-
ervoir.Reservoir
“F” line
“L” line
Radiator cap
Add coolant if necessary.
Water can be used in an emergency if
coolant is unavailable.
Start the engine and turn the air conditioning system on to check that the air
conditioning condenser cooling fans op erate and to check for coolant leaks
from the radiator or hoses.
The fans operate when the air conditioning system is turned on immediately after a
cold start. Confirm that the fans are 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 fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the engine immediately an d contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer.
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LX570_OM_OM60R61U_(U)
5938-2. Customization
8
Vehicle specifications
■Intuitive parking assist (P. 294)
■Automatic air conditioning system ( P. 407)
Operation of the running
board lights when a door is
opened
OnOff——O
Sensitivity of the ambient
light sensor used for dim-
ming the meter lights etc.Standard-2 to 2——O
Sensitivity of the ambient
light sensor used for bright-
ening the meter lights etc.
Standard-2 to 2——O
FunctionDefault settingCustomized
setting123
FunctionDefault settingCustomized
setting
Detection distance of the
front center sensorFarNearO—O
Detection distance of the
rear center sensorFarNearO—O
Alert Volume (alert volume
can be adjusted)31 to 5O—O
Display setting (when intui-
tive parking assist is operat-
ing)All sensors dis- playedDisplay offO—O
123
FunctionDefault settingCustomized setting
Exhaust gas sensor sensitiv-
ityStandard-3 to 3O—O
A/C Auto switch operationAutoManualO—O
123

596
LX570_OM_OM60R61U_(U)8-2. Customization
■Drive mode customization (
P. 291)
■Turn signal lever (P. 224)
FunctionDefault settingCustomized
setting
PowertrainNormalEcoO——Power
ChassisNormalSportO——Comfort
Automatic air conditioning
systemNormalEcoO——
123
FunctionDefault settingCustomized setting
The number of times the
turn signal lights flash auto-
matically when the turn sig-
nal lever is moved to the
first position during a lane
change
3
4
——O
5
6
7
Off
123

618Alphabetical index
LX570_OM_OM60R61U_(U)
Alphabetical index
A/C .................................................. 407, 418Air conditioning filter....................... 505
Changing the rear seat settings ...................................................412
Front automatic air conditioning system ......................407
Micro dust and pollen filter ............ 413
Rear air conditioning system......... 418
ABS (Anti-lock Brake System)....... 384 Function ................................................. 384
Warning light ...................................... 525
Active head restraint.............................146
Active Height Control Suspension........................................... 302
Active TRAC.......................................... 384
Air cleaner............................................... 475
Air conditioning filter ..........................505
Air conditioning system ........... 407, 418 Air conditioning filter....................... 505
Changing the rear seat settings ...................................................412
Front automatic air conditioning system ......................407
Micro dust and pollen filter ............ 413
Rear air conditioning system......... 418 Airbags ........................................................ 38
Airbag operating conditions .......... 46
Airbag precautions for your child............................................................ 41
Airbag warning light ........................ 525
Correct driving posture .................... 28
Curtain shield airbag operating conditions ....................... 46
Curtain shield airbag precautions .......................................... 44
Front passenger occupant classification system......................... 49
General airbag precautions ............. 41
Locations of airbags............................ 38
Modification and disposal of airbags............................................... 45
Side airbag operating conditions ............................................. 46
Side airbag precautions .................... 44
Side and curtain shield airbags operating conditions ...... 46
Side and curtain shield airbags precautions ......................... 44
SRS airbag instructions for Canadian owners ......................... 605
SRS airbags ............................................. 38
Alarm ........................................................... 82 Alarm .......................................................... 82
Warning buzzer................................. 525
Anchor brackets........................................ 61
Antenna Smart access system with push-button start ............................. 138
A