2014 LEXUS LX570 air condition

7704-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) NOTICE■
Repairing or replacing tires, wheels, tire pressure warning valves and transmit-
ters and tire valve caps ●
When removing or fitting the wheels, tires or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and
transmitter may be damaged if not handled correctly. ●
Make sure to install the tire valve caps. If the tire valve caps are not installed,
water could enter the tire pressure warning valves and the tire pressure warning
valves could be bound. ●
When replacing tire valve caps, do not us e tire valve caps other than those speci-
fied. The cap may become stuck.■
To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid seal ants, the tire pressure warning valve and
transmitter may not operate properly. If a liquid sealant is used, contact your Lexus
dealer or other qualified service shop as so on as possible. Make sure to replace the
tire pressure warning valve and transmitter when replacing the tire. (  P. 76 3 )■
Driving on rough roads
Take particular care when driving on roads with loose surfaces or potholes.
These conditions may cause losses in tire inflation pressure, reducing the cushion-
ing ability of the tires. In addition driving on rough roads may cause damage to the
tires themselves, as well as the vehicle’s wheels and body.■
If tire inflation pressures become low while driving
Do not continue driving, or your tires and/or wheels may be ruined.

7744-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) CAUTION■
Proper inflation is critical to save tire performance
Keep your tires properly inflated. Otherwise, the following conditions may occur
and result in an accident causing death or serious injury. ●
Excessive wear ●
Uneven wear ●
Poor handling ●
Possibility of blowouts resulting from overheated tires ●
Poor sealing of the tire bead ●
Wheel deformation and/or tire separation ●
A greater possibility of tire damage from road hazards
NOTICE■
When inspecting and adjusting tire inflation pressure
Be sure to reinstall the tire valve caps.
Without the valve caps, dirt or moisture co uld get into the valve and cause air leak-
age, which could result in an accident. If the caps have been lost, replace them as
soon as possible.

7774-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) Air conditioning filter The air conditioning filter must be cleaned or changed regularly to main-
tain air conditioning efficiency.
■ Removal method
Turn the “ENGINE START STOP” switch IGNITION ON
mode and switch to recircula ted air mode, then turn the
“ENGINE START STOP” switch OFF.
Open the glove box and remove the separate tray. (  P. 6 8 7 )
Remove the filter cover.
Remove the filter case.STEP 1
STEP 2
STEP 3
STEP 4

7784-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) ■ Cleaning method
If the filter is dirty, clean by blow-
ing compressed air through the
filter from the downward side. Hold the air gun 2 in. (5 cm)
from the filter and blow for
approximately 2 minutes at 72
psi (500 kPa, 5.0 kgf/cm 2
or
bar).
If it is not available, have the filter
cleaned by your Lexus dealer.
■ Replacement method
Remove the air conditioning fil-
ter and replace it with a new
one. The “  UP” marks shown on the
filter should be pointing up.

7794-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) ■
Checking interval
Inspect, clean and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, more frequent cleaning or
early replacement may be required. (For scheduled maintenance information, refer
to the “Warranty and Services Guide”, “Owner’s Manual Supplement” or “Sched-
uled Maintenance”.) ■
If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
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.

7884-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) 10 SEAT-A/C LH 25 A Seat heaters and ventilators
11 HWD4 30 A No circuit
12 HWD3 30 A No circuit
13 AHC 50 A 4-Wheel AHC
14 PTC-1 50 A PTC heater
15 PTC-2 50 A PTC heater
16 PTC-3 50 A PTC heater
17 RH-J/B 50 A RH-J/B
18 SUB BATT 40 A To w i n g
19 VGRS 40 A VGRS ECU
20 H-LP CLN 30 A Headlight cleaner
21 DEFOG 30 A Rear window defogger
22 SUB-R/B 100 A SUB-R/B
23 HTR 50 A Front air conditioning system
24 PBD 30 A Power back door ECU
25 LH-J/B 150 A LH-J/B
26 ALT 180 A Alternator
27 A/PUMP NO.1 50 A AI DRIVER
28 A/PUMP NO.2 50 A AI DRIVER 2
29 MAIN 40 A Headlight, daytime running light sys-
tem, HEAD LL, HEAD RL, HEAD LH,
HEAD RHFuse Ampere Circuit

7934-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) 4 PA N E L 10 A Ashtray, brake controller, cigarette
lighter, cool box, center differential
lock, driving mode switches, multi-
information display, air conditioning
system, glove box light, audio system,
emergency flashers, headlight cleaner
switch, driving position memory
switches, outside rear view mirror
switches, overhead module, roll sens-
ing of curtain shield airbags off switch,
rear heater panel, shift lever switch,
power back door main switch, camera
switch, VSC OFF switch, steering
switch, console switch, instrument
panel light control
5 ECU-IG No.2 10 A Air conditioning system, rear heater
panel, overhead module, ABS, VSC,
steering sensor, yaw rate & G sensor,
main body ECU, stoplights, moon
roof, anti-glare inside rear view mirror
6 WINCH 5 A No circuit
7 A/C IG 10 A Cool box, condenser fan, cooler com-
pressor, rear window and outside rear
view mirror defoggers, smog sensor
8 TA I L 15 A Tail lights, license plate lights, front fog
lights, parking lights, side marker
lightsFuse Ampere Circuit

7954-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) 21 RR FOG 7. 5 A No circuit
22 A/C 7. 5 A Air conditioning system
23 AM1 5 A No circuit
24 TI & TE 15 A Tilt and telescopic steering
25 FR P/SEAT RH 30 A Po w e r s e a t
26 PWR OUTLET 15 A Po w e r o u t l e t
27 OBD 7. 5 A On Board Diagnostics
28 PSB 30 A Pre-collision system
29 DR/LCK 25 A Main body ECU
30 FR P/SEAT LH 30 A Po w e r s e a t
31 INVERTER 15 A InverterFuse Ampere Circuit