steering Lexus GX460 2013 Specifications /

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4-2. Maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
ItemsCheck points
Head restraints• Do the head restraints move smoothly and lock securely?
Indicators/buzzers• Do the indicators and buzzers
function properly?
Lights• Do all the lights come on?
Pa r k i n g b r a ke
• Does the parking brake lever or pedal move smoothly?
• When parked on a slope and the parking brake is on, is the vehicle
securely stopped?
Seat belts
• Do the seat belts operate smoothly?
• The seat belts should not be dam- aged.
Seats• Do the seat controls operate prop-erly?
Steering wheel
• Does the steering wheel rotate smoothly?
• Does the steering wheel have the
correct amount of free play?
• There should not be any strange sounds coming from the steering
wheel.

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4-3. Do-it-yourself maintenance
GX460_OM_OM60J63U_(U)
ItemsPa r t s a n d t o o l s
Fuses( P. 6 5 5 )• Fuse with same amperage rating as
original
Headlight aim ( P. 668)• Phillips-head screwdriver
Light bulbs( P. 6 7 0 )
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Power steering fluid level (P. 6 2 9 )
• Automatic transmission fluid
DEXRON® II or III
•Rag or paper towel
• Clean funnel
Radiator and condenser ( P. 6 2 6 )
Tire inflation pressure ( P. 643)• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 6 3 5 )
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

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4-3. Do-it-yourself maintenance
GX460_OM_OM60J63U_(U)
Engine compartment
Engine coolant reservoir(P. 6 2 4 )
Engine oil level dipstick (P. 620)
Engine oil filler cap (P. 621)
Brake fluid reservoir (P. 6 2 7 )Fuse box ( P. 655)
Battery ( P. 6 3 1 )
Radiator ( P. 6 2 6 )
Condenser ( P. 6 2 6 )
Electric cooling fan
Washer fluid tank ( P. 635)
Power steering fluid reservoir (P. 6 2 9 )

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
Power steering fluid■ Fluid level
The fluid level should be within the appropriate range.
Full (when cold)
Add fluid (when cold)
Full (when hot)
Add fluid (when hot)
Hot: The vehicles has been driven around 50 mph (80 km/h) for 20 minutes, or slightly longer in frigid temperatures. (Fluid temper-
ature, 140 F - 175 F [60 C - 80 C]).
Cold: The engine has not been ru n for about 5 hours. (Room tempera-
ture, 50 F - 85 F [10 C - 30 C]).

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4-3. Do-it-yourself maintenance
GX460_OM_OM60J63U_(U)■
Checking the fluid level
Make sure to check the fluid type and prepare the necessary items.
Clean all dirt off the reservoir.
Remove the cap by turning it counterclockwise.
Wipe the dipstick clean.
Reinstall the cap and remove it again.
Check the fluid level.
Fluid typeAutomatic transmission fluid DEXRON® II or III
ItemsRag or paper, clean funnel (only for adding fluid)
CAUTION
■When checking the reservoir
Take care as the reservoir may be hot.
NOTICE
■When adding fluid
Avoid overfilling, or the power steering may be damaged.
■After replacing the reservoir cap
Check the steering box case, vane pump and hose connections for leaks or dam-
age.
STEP1
STEP2
STEP3
STEP4
STEP5

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
6SUB BATT30 ATo w i n g
7IG220 AInjector, ignition, meter
8HORN10 AHorn
9EFI25 AEFI ECU, A/F heater relay, fuel pump
relay, EFI NO.2
10A/F20 AA/F SSR
11FUEL OPN 10 AFuel lid opener
12S/HTR RR20 ARear seat heater
13FOLD SEAT LH30 AFolding seat (left)
14FOLD SEAT RH30 AFolding seat (right)
15TOW I N G TA I L30 ATo w i n g
16A/C COMP10 AAir conditioning system
17STRG HTR 10 ASteering heater
18CDS FAN20 ACondenser fan
19STOP10 A
Stop lights, high mount stop light, stop
light switch, VSC ECU, towing, Smart
access system with push button start
20AIR SUS NO.27. 5 AAIR SUS ECU
21H-LP RH-HI15 AHeadlight high beam (right)
22H-LP LH-HI15 AHeadlight high beam (left)
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
36RAD NO.115 AAudio system, navigation system, rear
seat entertainment system
37AM27. 5 AStarter system
38RAD NO.210 ANavigation system
39MAYDAY7. 5 AMAYDAY
40AMP30 AAudio system
41ABS NO.150 AABS, VSC
42ABS NO.230 AABS, VSC
43AIR PMP50 AAir pump
44SECURITY10 ASECURITY
45SMART7. 5 ASmart access system with push button
start
46STRG LOCK20 ASteering lock system
47TOW I N G B R K30 ATo w i n g
48WIP RR15 ARear window wiper
49DOME10 A
Interior lights, personal lights, vanity
lights, door courtesy lights, footwell
lights, outer foot lights, overhead
module
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
GX460_OM_OM60J63U_(U)
50ECU-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
51WSH FR NO.27. 5 ADSS#1 ECU
52H-LP RH-LO15 AHeadlight low beam (right), headlight
leveling system
53H-LP LH-LO15 AHeadlight low beam (left), headlight
leveling system
54INJ10 ACoil, injector, ignition, noise filter
55EFI 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
56WIP FR NO.27. 5 ADSS#1 ECU
57WSH RR15 ARear window washer
58SPARESpare fuse
59SPARESpare fuse
60SPARESpare fuse
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
GX460_OM_OM60J63U_(U)
74WD20 A4WD system, rear differential lock
8P/ S E AT F L30 AFront power seat (left)
9D/L NO.225 ADoor lock motor, glass hatch
opener, BODY ECU
10PSB30 APSB ECU
11TI & TE15 ATilt and telescopic steering
12FOG FR15 AFront fog lights
13OBD7. 5 ADLC 3
14A/C7. 5 AAir conditioning system
15AM17. 5 AStarting system
16DOOR RL25 ARear power window (left)
17ECU-IG NO.110 A
Shift lock ECU, VSC ECU, steering
sensor, yaw rate sensor, sequential
switch, auto wiper ECU, back up
relay, tilt & telescopic steering, PSB
ECU, DSS#1 ECU, front radar sensor,
AFS ECU, TIRE PRESS ECU,
DRIVER MON ECU
18IG17. 5 A
Front turn signal light, rear turn signal
light, side turn signal light, meter turn
signal light, trailer light, ALT, VSC, C/
C switch
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
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 sensor, navigation system,
DSS#2 ECU, meter switch, accessory
meter, folding seat ECU, O/H IG,
head light cleaner, rear air condition-
ing system, deicer, D-module, rain
sensor, air suspension, RR VLV ECU,
steering heater, LKA, P/SEAT IND
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