2005 LEXUS LS430 climate control

SWITCHES
75
Rear
The rear climate control seat filters are located in the rear side
garnishes and under the rear outboard passenger seats.
12L182
Under the seat
1
Push the rear seat po sition control button to slide the rear
seat to the foremost position.
2 Remove the air filter lock under the seat.
3Remove the air filter.
Replace the air filter when the performance of air flow becomes
low by the deterioration of filter.
NOTICE
The air filters should be installed properly in position.
The use of rear climate control seat with the air filter
removed may cause the malfunction of the rear climate
control seat.

SWITCHES
76
12L240
On the side garnish
The side garnish filters should be replaced at your Lexus
dealer. When you replace the filters under the seats, have the
side garnish filters replaced as well.
NOTICE
Do not remove the side garnish filters or clean them by
washing or air blowing. Doing so may cause the
malfunction of the rear climate control seat.
REFRESHING REAR SEAT SWITCHES
12L151
 1For left rear seat 2For right rear seat
The refreshing rear seat is designed to reduce lumbar
fatigue by means of a lumbar vibrator.
The ignition switch must be in the “ON” position.
To operate the lumbar vibrator, push the switch on the front
side. Keep pushing the switch down to change the vibration
speed.
To stop the vibrator, push the switch on the rear side.

AIR CONDITIONING
243
(a) Climate control
SETTING OPERATION automatic control
21L054a
1. Push the “AUTO” button.
Air flow quantity, switching of the diffusers, on−off of the air
conditioning, and switching of the air intake between
RECIRCULATED AIR and OUTSIDE AIR are automatically
adjusted. If you use the air purifier automatic mode at the same
time, air purifying effect will be enhanced (If equipped). The
operation status is shown by each indicator.
When one of the manual control buttons is depressed while
operating in automatic mode, the mode relevant to the
depressed button is set. Other conditions continue to be
adjusted automatically.
Push the “OFF” button briefly to turn the air conditioning off.
If you keep the “OFF” button pushed, the data for the air filter
is reset.
21L283
2. Use the “TEMP” or “PASSENGER TEMP” button to set
the desired temperature.
The “TEMP” or “P ASSENGER TEMP” button is used to set the
desired temperatu re. The temperatur e will be controlled on the
driver and front and rear passenger sides (if rear air
conditioning is equipped) simultaneously or individually. The
figures on the panel indicate degrees Fahrenheit or
Centigrade.
“TEMP” button − Changes the temperature on the driver and
front and rear passenger sides (if rear air conditioning is
equipped) simultaneously or individually.
“PASSENGER TEMP” button − Changes the temperature
settings separate from the driver side.
“DUAL” button − Changes the mode of the temperature
setting.

CHASSIS
475
Uniform tire quality grading
This information has been prepared in accordance
with regulations issued by the National Highway
Traffic Safety Administration of the U.S. Department
of Transportation. It provides the purchasers and/or
prospective purchasers of Lexus vehicles with
information on uniform tire quality grading.
Your Lexus dealer will help answer any questions
you may have as you read this information.
DOT quality grades All passenger vehicle tires
must conform to Federal Safety Requirements in
addition to these grades. Quality grades can be
found where applicable on the tire sidewall between
tread shoulder and maximum section width. For
example: Treadwear 200 Traction AA Temperature
A
Treadwear − The treadwear grade is a comparative
rating based on the wear rate of the tire when tested
under controlled conditions on a specified government
test course. For example, a tire graded 150 would wear
one and a half (1 − 1/2) times as well on the government
course as a tire graded 100. The relative performance
of tires depends upon the actual conditions of their use,
however, and may depart significantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate. Traction
AA, A, B, C − The traction grades, from highest
to lowest, are AA, A, B and C, and they represent the
tire’s ability to stop on wet pavement as measured under
controlled conditions on specified government test
surfaces of asphalt and concrete. A tire marked C may
have poor traction performance.
Warning: The traction grade assigned to this tire is
based on braking (straight ahead) traction tests and
does not include cornering (turning) traction.
Temperature A, B, C − The temperature grades are A
(the highest), B, and C, representing the tire’ s resistance
to the generation of heat and its ability to dissipate heat
when tested under controlled conditions on a specified
indoor laboratory test wheel. Sustained high
temperature can cause the material of the tire to
degenerate and reduce tire life, and excessive
temperature can lead to sudden tire failure. The grade
C corresponds to a level of performance which all
passenger car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B and A
represent higher levels of performance on the laboratory
test wheel than the minimum required by law.
Warning: The temperature grades for this tire are
established for a tire that is properly inflated and not
overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.

ELECTRICAL COMPONENTS
492
64L206
Engine compartment
No.FUSEAMPERECIRCUIT
1 TI & TE20Tilt and telescopic steering
2 PANEL7.5
Lexus park assist system, Rear
seat heater, Rear climate
control seat, Multi− information
display, Audio system,
Cigarette lighter, Instrument
panel light, Coin box light, Rear
mirror light, Glove box light,
Power rear seat, Electronically
modulated air suspension
system, Turn signal lights,
Clock, Shift lock system,
Vehicle stability control system,
Sunshade, Power rear view
mirror control system, Console
box light, Fuel opener system,
Adaptive Front Lighting System
(AFS)
3 D P/SEAT30Power seat system
4 GAUGE7.5Gauges and meters, Lexus
park assist system, Shift lock
system
5 MPXIG7.5
Tilt and telescopic steering,
Power door lock system, Power
seat system, Engine
immobilizer system
6 D S/HTR15Seat heater, Climate control
seat system
7 AIR SUS20Electronically modulated air
suspension system
8 DACC7.5Shift lock system, Theft
deterrent system

ELECTRICAL COMPONENTS
493
No.FUSEAMPERECIRCUIT
9 PWR
OUTLET15Power outlet
10 DCIG15Rear cigarette lighter
11 OBD7.5On− board diagnosis system
12 AM17.5Starting system
13 ABSIG7.5Vehicle stability control system
14 D B/ANC5Seat belts
15 SECURITY7.5Theft deterrent system
16 A/C7.5Air conditioning system
17 STOP5Stop lights
18 D RRIG10Refreshing seat
19 IG230SRS airbag system, Engine
immobilizer system, Steering
lock system, Starting system
20 HAZ15Emergency flashers
21 STR LOCK7.5Steering lock system
22 AM27.5All components in “STA” and
“IG2”, Starting system
23 MPXB17.5
Power door lock system,
Engine immobilizer system,
Steering lock system, Front
power seat, Rear power seat
24 MPXB37.5
Tilt and telescopic steering,
Headlight switch, Windshield
wiper and washer switch, Turn
signal switch
No.FUSEAMPERECIRCUIT
25 DOME10
Vanity lights, Outer foot lights,
Ignition switch light, Clock,
Gauges and meters, Interior
lights, Personal lights
26 MPXB27.5Gauges and meters, Vehicle
stability control system,
Illuminated entry system, TEL
27 P RRIG10Refreshing seat
28 HLP LVL7.5Headlight leveling system,
Adaptive Front Lighting System
(AFS)
29 PIG7.5Rain sensor, Air conditioning
system, Moon roof,
Multi −information display, Clock
30 P S/HTR15Seat heater, Climate control
seat system
31 PACC7.5
Air conditioning system, Audio
system, Clock,
Multi −information display,
Illuminated entry system
32 PCIG15Front cigarette lighter
33 RADIO
NO.17.5Audio system
34 RR DOOR LH20Power door lock system, Power
window, Door closer system,
Door courtesy lights

ELECTRICAL COMPONENTS
494
No.FUSEAMPERECIRCUIT
35 P DOOR25
Power door lock system, Power
rear view mirror control system,
Outside rear view mirror
defogger, Door closer system,
Door courtesy lights, Power
windows
36 TEL7.5Audio system, Navigation
system
37 P B/ANC5Seat belts, Seat belt buckle
illumination
38 RR DOORRH20Power door lock system, Power
window, Door closer system,
Door courtesy lights
39 D DOOR25
Power door lock system, Door
closer system, Power rear view
mirror control system, Outside
rear view mirror defogger, Door
courtesy lights, Power windows
40 RR IG7.5
Lexus park assist system,
Electronically modulated air
suspension system, Theft
deterrent system, TEL
41 RR ACC7.5Audio system, TEL
42 RR ECUB7.5Rear air conditioning system,
Theft deterrent system, Trunk
light, Refreshing rear seat
43 RR A/C7.5Rear air conditioning system,
Air purifier
44 RR S/HTR30Seat heater, Climate control
seat system
No.FUSEAMPERECIRCUIT
45 RR
S/SHADE15Sunshade
46 LCE LP7.5License plate lights
47 S/ROOF30Moon roof
48 FUEL OPN10Fuel opener system, Trunk lid
closer system
49 AMP30Audio system
50 P P/SEAT30Power seat system
51 RR SEAT LH30Power seat system
52 RR SEATRH30Power seat system
53 LUG J/B50
All components in “RR SEAT
RH”, “RR SEAT LH”, “S/ROOF”,
“AMP”, “RR IG”, “RR ECU −B”,
“P P/SEAT”, “RR S/HTR”, “RR
S/SHADE”, “RR A/C”, “RR
ACC”, “FUEL OPN” and “LCE
LP”, Tail lights and Stop lights
54 ABS 250Vehicle stability control system
55 HEATER50Air conditioning system
56 ABS 130Vehicle stability control system
57 DEFOG40Rear window defogger
58 AIR SUS40Electronically modulated air
suspension system