2012 Lexus GX460 automatic transmission

605
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
ItemsParts and tools
Fuses(→ P. 6 4 7 )• Fuse with same amperage rating as
original
Headlight aim ( →P. 660)• Phillips-head screwdriver
Light bulbs (→ P. 6 6 2 )
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Power steering fluid level (→ P. 6 2 1 )
• Automatic transmission fluid
DEXRON® II or III
•Rag or paper towel
• Clean funnel
Radiator and condenser ( →P. 6 1 8 )
Tire inflation pressure ( →P. 6 3 5 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( →P. 6 2 7 )
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

622
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)■
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

5
When trouble arises
689
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
Stop the vehicle immediately.The following warning indicates the possibility of damage to the vehicle
that may lead to an accident. Immediately stop the vehicle in a safe place
and contact your Lexus dealer.
Have the vehicle inspected by yo ur Lexus dealer immediately.
Failing to investigate the cause of the following warnings may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details
Charging system warning light Indicates a malfunction in the vehicle’s charging system
while the engine is running.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Malfunction indicator lampMalfunction in:
• The emission control system;
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system.

5
When trouble arises
701
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
Have the vehicle inspected by your Lexus dealer immediately.
A buzzer sounds and a warning message is shown on the multi-informa-
tion display. Failure to investigate the cause of the following warnings may
lead to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer immediately.
Wa r n i n g m e s s a g eDetails
Indicates that the automatic transmission fluid tem-
perature is too high Stop the vehicle in a safe place, shift the shift lever to
P and wait until the message goes off. If the message
goes off, you may start the vehicle again.
Indicates a malfunction in the automatic transmission
system
Indicates a malfunction in the steering lock system

760
6-1. Specifications
GX460_U.S.A. (OM60J00U)
Automatic transmission
*: The fluid capacity is a reference quantity. If replacement is necessary, contact
your Lexus dealer.
Fluid capacity*
Wi th
air-cooled type
ATF cooler
11.8 qt. (11.2 L, 9.9 Imp.qt.)
Without
air-cooled type
ATF cooler
11.6 qt. (11.0 L, 9.7 Imp.qt.)
Fluid typeTo y o t a G e n u i n e AT F W S
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterio-
ration in shift quality, locking up of the transmission accompanied by vibration and,
ultimately, damage to the vehicle’s transmission.

762
6-1. Specifications
GX460_U.S.A. (OM60J00U)
Chassis lubrication
Steering
Tires and wheels
Propeller shafts
Spiders
Slide yokeLithium base chassis grease, NLGI No.2
Molybdenum-disulfide lithium base chassis
grease, NLGI No.2 or lithium base chassis
grease, NLGI No.2
Free playLess than 1.18 in. (30 mm)
Power steering fluid typeAutomatic transmission fluid DEXRON® II
or III
Ti r e s i z eP265/60R18 109H
Tire inflation pressure
(Recommended cold tire inflation
pressure)
Driving under normal conditions Front:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Rear:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Spare:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Wheel size18 × 7 1 /2 J
Wheel nut torque83 ft•lbf (112 N•m, 11.4 kgf•m)

820
GX460_U.S.A. (OM60J00U)
Alphabetical index
Alphabetical index
A/CFront automatic air conditioning
system
*............................................... 392
Rear automatic air conditioning
system
*............................................... 407
ABS.............................................................335
Active traction control........................336
Adaptive front lighting system ........ 223
Adaptive variable suspension system...................................................... 321
AFS ............................................................. 223
Air conditioning filter .......................... 642
Air conditioning system Air conditioning filter ....................... 642
Front automatic air conditioning system
*............................................... 392
Rear automatic air conditioning system
*............................................... 407
Airbags Airbag deployment
conditions............................................. 126
Airbag precautions for your
child......................................................... 132
Airbag warning light ....................... 690
Front passenger occupant classification system........................139
General airbag precautions ............131
Locations of airbags........................... 122
Modification and disposal of airbags ...................................................136
Proper driving posture .....................120
Side airbag precautions ...................133
Side and curtain shield airbags deployment conditions ................. 127
Side and curtain shield airbag precautions .........................................134
SRS airbags ............................................ 122 Alarm............................................................ 117
Antenna .................................................... 420
Anti-lock brake system ...................... 335
Armrest .................................................... 554
Audio input.............................................. 459
Audio system
Antenna.................................................. 420
Audio input........................................... 459
AUX port .............................................. 459
CD player/changer ..........................423
iPod .......................................................... 440
MP3/WMA disc................................. 431
Optimal use ..........................................457
Portable music player ..................... 459
Radio ......................................................... 415
Steering wheel audio switch........ 460
USB memory ...................................... 448
Audio/video remote controls*
Audio/video system*
Automatic air conditioning system
Air conditioning filter ........................642
Front automatic air conditioning system
*...............................................392
Rear automatic air conditioning
system
*.............................................. 407
Automatic light control system.........219
Automatic transmission Automatic transmission ...................186
If the shift lever cannot be shifted from P ................................................... 737
S mode .....................................................189
AUX port
*.............................................. 459
Auxiliary box .............................. 533, 560
AVS..............................................................321
A

828
Alphabetical index
GX460_U.S.A. (OM60J00U)
SeatsAdjustment..............................63, 67, 78
Adjustment precautions .......................... 66, 76, 81
Child seats/child restraint system installation ............................. 151
Cleaning................................................. 593
Driver’s seat position memory....... 78
Folding down the second seatbacks ..................................... 69, 70
Folding down the third seats ........... 72
Head restraint......................................... 82
Properly sitting in the seat ...............120
Seat heaters ........................................... 551
Seat position memory ........................ 78
Ventilated seats ................................... 551
Service reminder indicators ............. 198
Shift lever Automatic transmission................... 186
If the shift lever cannot be shifted from P ....................................737
Shift lever lighting .................................. 519
Shift lock system .................................... 737
Side airbags.............................................. 122
Side marker lights Replacing light bulbs............667, 669
Switch ........................................................ 219
Wattage.................................................. 763 Side mirror
Adjusting and folding .......................... 97
Mirror position memory ....................78
Side turn signal lights
Replacing light bulbs ........................ 672
Smart access system with
push-button startAntenna location ................................... 32
Entry functions ........................................29
Starting the engine.............................. 179
Spare tire Inflation pressure ................................762
Storage location ...................................721
Spark plug ................................................757
Specifications ......................................... 752
Speedometer .......................................... 195
Steering Column lock release ......................... 183
Fluid ...........................................................762
Steering wheel
Adjustment ...............................................93
Audio switches ................................... 460
Heated steering wheel ................... 549
Steering wheel position memory ..................................................78
Stop light
Replacing light bulbs ........................ 672
Storage feature ..................................... 523
Stuck If your vehicle becomes stuck ..... 747
Sun visors .................................................538