2010 Lexus GX460 heater

650
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60E69U)
23HTR50 AAir conditioning system
24WIP WSH RR30 ARear window wipers and washer
25H-LP CLN30 AHeadlight cleaner
26400W INV80 AAC INVERTER
27ST30 ASteering lock system
28H-LP HI25 ADIM relay, headlights, daytime run-
ning light system
29ALT-S7. 5 AALT
30TURN & HAZ15 A
Front turn signal light, rear turn signal
light, side turn signal light, meter turn
signal light
31D/L NO.125 ADoor lock motor, glass hatch opener
32ETCS10 AEFI ECU
33FUEL PMP15 AFPC
34TOW I N G30 ATo w i n g
35ALT140 A
Air conditioning system, AIR SUS,
headlight cleaner, towing, folding seat,
STOP, rear window defogger, MIR
HTR, CDS FAN, RR FOG, DEICER,
ALT CON, MG-CLT, RR SEAT HTR,
STRG HTR, J/B
36P/ I - B80 AInjector, ignition, meter, EFI, A/F
heater, horn
FuseAmpereCircuit

652
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60E69U)
51ECU-B10 A
Body ECU, meter, heater, steering
sensor, wireless remote control, seat
position memory, tilt and telescopic
steering, multi display, Smart access
system with push button start, folding
seat, cool box, DSS#2 ECU, steering
switch, D-module switch, overhead
module
52WSH FR NO.27. 5 ADSS#1 ECU
53H-LP RH-LO15 AHeadlight low beam (right), headlight
leveling system
54H-LP LH-LO15 AHeadlight low beam (left), headlight
leveling system
55INJ10 ACoil, injector, ignition, noise filter
56EFI NO.210 A
O2 SSR, AFM, ACIS VSV, AI
COMB, KEY OFF PUMP, EYP VSV,
EGR VALVE, CANISTER VSV, AI
VSV RLY, AI PUMP HTR RLY
57WIP FR NO.27. 5 ADSS#1 ECU
58WSH RR15 ARear window washer
59SPARESpare fuse
60SPARESpare fuse
61SPARESpare fuse
FuseAmpereCircuit

655
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60E69U)
19ECU-IG NO.210 A
Rear window defogger, outside rear
view mirror memory, seat heater/ ven-
tilator switch, inverter relay, air condi-
tioning system, EC mirror, Body ECU,
exhaust gas sensor, parking assist sen-
sor, navigation system, DSS#2 ECU,
meter switch, accessory meter, folding
seat ECU, O/H IG, head light cleaner,
rear air conditioning system, deicer,
4.2-in. display, D-module, rain sensor,
air suspension, RR VLV ECU, steering
heater, LKA
20S/HTR FR20 ASeat heater and ventilator
21P/ S E AT F R30 AFront power seat (right)
22DOOR P30 A
Front power window (passenger’s
side), outside rear view mirror mem-
ory
23DOOR10 APo w e r w i n d o w
24DOOR D25 AFront power window (driver’s side)
25DOOR RR25 ARear power window (right)
26S/ROOF25 AMoon roof
27WIP30 AWindshield wipers and washer
28WA S H E R20 AWindshield wipers and washer, rear
window wipers and washer
29COOLING10 ACool box
FuseAmpereCircuit

656
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60E69U)
30IGN10 A
EFI ECU, C/OPN RLY, VSC ECU, air
bag ECU, smart entry & start system,
steering lock ECU, CAN gateway
ECU
31GAUGE7. 5 AMeter
32PA N E L7. 5 A
Emergency flasher switch, seat heater
switch, 4WD switch, center differen-
tial lock switch, rear differential lock
switch, air suspension, VSC off switch,
interior light switch, glove box light,
shift position indicator light, audio sys-
tem, navigation system, steering
switch, parking assist system switch,
headlight leveling switch, headlight
cleaner switch, folding seat switch,
outside rear view mirror switch,
ODO/TRIP switch
33TA I L10 A
Front position lights, tail lights, license
plate lights, EFI ECU, rear fog lights,
towing, front fog lights
FuseAmpereCircuit

755
6-1. Specifications
6
Vehicle specifications
GX460_U.S.A. (OM60E69U)
Cooling system
Ignition system
Capacity 
(reference)
With rear
heater16.3 qt. (15.4 L, 13.6 Imp.qt.)
Without rear
heater14.5 qt. (13.7 L, 12.1 Imp.qt.)
Coolant type
Use either of the following:• “Toyota Super Long Life Coolant”
• A similar high-quality ethylene glycol-
based non-silicate, non-amine, non-nitrite,
and non-borate coolant with long-life
hybrid organic acid technology
Do not use plain water alone.
Spark plug
MakeDENSO SK20HR11
Gap0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

772
6-1. Specifications
GX460_U.S.A. (OM60E69U)
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation 
pressureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic trans-
mission, power steering, power brakes, power win-
dows, power seats, radio and heater, to the extent
that these items are available as factory-installed
equipment (whether installed or not)
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil
and coolant, and if so equipped, air conditioning and
additional weight optional engine

811
Alphabetical index
GX460_U.S.A. (OM60E69U)
Back-up lightsReplacing light bulbs ....................... 669
Wattage ................................................... 761
Battery Battery......................................................622
Checking ................................................622
If the vehicle has discharged 
battery.................................................... 741
Preparing and checking 
before winter ...................................... 361
Bluetooth
®...................................456, 477
Bottle holders/door pockets........... 520
Brake Fluid ............................................................618
Parking brake ........................................ 193
Brake assist ............................................. 330
Brake in tips .............................................. 169
Brightness control Multi-information display light 
control ................................................... 216
Instrument cluster light control.....196
Care Exterior .................................................. 588
Interior..................................................... 592
Seat belts ............................................... 593
Cargo capacity ..................................... 354
Cargo hooks ...........................................557
Cargo net hooks .................................. 559
CD player/changer .............................. 416
Center differential lock/unlock .......318
Chains......................................................... 361
Child restraint system Booster seats, definition................... 147
Booster seats, installation ................155
Convertible seats, definition .......... 147 Convertible seats, installation ....... 155
Front passenger occupant

classification system ....................... 140
Infant seats, definition .........................147
Infant seats, installation ..................... 155
Installing CRS with lower 
anchorages......................................... 153
Installing CRS with seatbelts ......... 155
Installing CRS with top straps......... 161
Child safety Airbag precautions ............................ 133
Battery precautions .............. 622, 743
Child restraint system ........................147
Child-protectors ................................... 52
How your child should wear 
the seatbelt............................................89
Installing child restraints................... 152
Moon roof precautions....................108
Power window lock switch .............. 101
Power window precautions .......... 103
Removed electronic key 
battery precautions .......................644
Seat belt extender precautions...... 93
Seat belt precautions ..........................90
Seat heater precautions................. 553
Child-protectors ...................................... 52
Cleaning Exterior................................................... 588
Interior .....................................................592
Seat belts ............................................... 593
Clock .........................................................533
Coat hooks ..............................................555
Coin holder .............................................. 519
Compass .................................................. 575
Condenser ................................................617
Console box ............................................ 517
C

814
Alphabetical index
GX460_U.S.A. (OM60E69U)
Garage door opener .......................... 567
Gas station information......................824
Gauges ...................................................... 195
Glove box ................................................. 516
Glove box light ....................................... 516
Hands-free system for cellular 
phones.................................................... 477
Hazard lights Switch ...................................................... 674
Head restraints Adjustment............................................... 83
Headlights cleaner ................................ 241
Headlights Adaptive front lighting 
system .................................................. 223
Discharge headlights 
precautions ....................................... 672
Replacing light bulbs..........................661
Switch ...................................................... 220
Wattage.................................................... 761
Heaters Seat heaters ........................................... 551
Side mirror ............................................404
Heated steering..................................549
Height control Rear height control air 
suspension.......................................... 310
Hill-start assist control ......................... 331
Hood .......................................................... 607
Hooks Cargo ...................................................... 557
Cargo hooks .......................................559
Coat ........................................................ 555
Horn ............................................................ 194 I/M test ...................................................... 601
Identification
Engine ....................................................... 751
Vehicle...................................................... 751
Ignition switch .......................................... 179
Ignition switch light Ignition switch light ...............................511
Illuminated entry system ......................514
Indicator lights ........................................ 198
Initialization Items to initialize...................................801
Inside door handle light ........................ 511
Inside rear view mirror .......................... 96
Instrument cluster light control.........196
Interior lights Interior lights ............................................ 511
Switch ........................................................ 513
Wattage ................................................... 761
Intuitive parking assist......................... 259
Jack Vehicle-equipped jack....................720
Jack handle ............................................. 720
Keyless entry ................................................. 48
Keys Electronic key ......................................... 26
Engine switch .......................................... 29
If you lose your keys ......................... 737
If the electronic key does not 
operate properly............................ 738
Key number plate.................................. 26
Keyless entry........................................... 48
Keys.............................................................. 26
Mechanical key ...................................... 26
Wireless remote control key.......... 48G
H
I
J
K