2019 Lexus GX460 check engine

GX460_OM_OM60Q84U_(U)
5738-1. Specifications
8
Vehicle specifications
*: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory.Use Lexus approved “Toyota Genuine Differ ential Gear Oil” or an equivalent of
matching quality to satisfy the above specification. Please contact your Lexus dealer
for further details.
*: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory. Use Lexus approved “Toyota Genuine Differ ential Gear Oil” or an equivalent of
matching quality to satisfy the above specification. Please contact your Lexus dealer
for further details.
Electrical system (battery)
Specific gravity reading at
68 F (20 C):12.6  12.8 V Fully charged
12.2  12.4 V Half charged
11.8  12.0 V Discharged
Voltage is checked 20 minutes after the engine
and all the lights are turned off.
Charging rates5 A max.
Front differential
Oil capacity1.48 qt. (1.40 L, 1.23 Imp.qt.)
Oil type and viscosity*Toyota Genuine Differential Gear Oil LT 75W-85
GL-5 or equivalent
Rear differential
Oil capacity2.85 qt. (2.70 L, 2.38 Imp.qt.)
Oil type and viscosity*Toyota Genuine Differential Gear Oil LT 75W-85
GL-5 or equivalent

620What to do if... (Troubleshooting)
GX460_OM_OM60Q84U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, ne w genuine mechanical keys can be made
by your Lexus dealer. ( P. 99)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. ( P. 101)
●Is the electronic key battery weak or depleted? ( P. 489)
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. (P. 194)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly du e to the condition of the radio wave.
( P. 121)
●Is the child-protector lock set?
The rear door cannot be opened from in side the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
( P. 105)
If you have a problem, check the foll owing before contacting your Lexus
dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

627Alphabetical index
GX460_OM_OM60Q84U_(U)
Emergency flashers .............................508
EngineAccessory mode................................. 194
Compartment....................................... 461
Hood ....................................................... 460
How to start the engine ................... 193
Identification number ...................... 570
If the engine will not start............... 554
Ignition switch (engine switch)..... 193
Overheating .........................................562
Engine compartment cover ............. 462
Engine coolant....................................... 465 Capacity ................................................. 572
Checking............................................... 465
Preparing and checking before winter ..................................... 381
Engine immobilizer system .................. 77
Engine oil ................................................. 463 Capacity ................................................ 570
Checking................................................463
Preparing and checking before winter ..................................... 381
Engine switch ...........................................193
Engine switch light ............................... 406
Event data recorder (EDR) ...................10 Flat tire ...................................................... 540
Floor mats....................................................26
Fluid
Automatic transmission .................. 574
Brake........................................................ 575
Steering .................................................. 576
Washer ................................................... 473
Fog lights.................................................... 215 Switch ........................................................ 215
Four-wheel drive system................... 346
Front passenger occupant classification system ........................... 48
Front passenger’s seat belt reminder light ..................................... 520
Front seats ................................................. 126 Adjustment.............................................. 126
Cleaning................................................. 447
Correct driving posture .................... 28
Driving position memory.................139
Head restraints ..................................... 144
Seat heaters .......................................... 404
Seat position memory .......................139
Front turn signal lights ........................ 204 Replacing light bulbs ...................... 500
Turn signal lever ................................. 204
Wattage ................................................. 577F

633Alphabetical index
GX460_OM_OM60Q84U_(U)
Cruise control switch........... 229, 232
“DAC” switch...................................... 353
Door lock switches ............................ 109
Driving position memory switches ................................................ 139
Emergency flashers switch .......... 508
Engine switch ........................................ 193
Fog light switch .................................... 215
Four-wheel drive control switch....................................................346
Headlight cleaner switch ............... 224
Height control button ....................... 341
LDA switch ........................................... 243
Light switches ..................................... 206
Moon roof switches........................... 157
Multi-terrain Monitor switch ..........317
Multi-terrain Select switch...............312
“ODO TRIP” button ........................... 88
Outside rear view mirror switches .................................................. 151
Parking assist........................................249
PCS off switch ..................................... 373
Power door lock switch .................. 109
Power window switch ...................... 154
Rear window wiper and washer switch................................... 222
Rear window and outside rear view mirror
defoggers switch ........................... 395
Seat heater switches........................ 404
Talk switch
*
Tilt and telescopic steering control switch .....................................147 Vehicle-to-vehicle distance
button ................................................... 234
VSC OFF switch ............................... 357
Window lock switch ..........................154
Windshield wipers and washer switch .................................... 217
Tachometer ................................................87
Tail lights .................................................. 206 Light switch........................................... 206
Talk switch
*
Telephone switch
*
Theft deterrent system Alarm ...........................................................79
Engine immobilizer system .............. 77
Tire inflation pressure........................... 481 Maintenance data.............................. 576
Tires ............................................................ 474 Chains ...................................................... 381
Checking ............................................... 474
If you have a flat tire ..........................540
Inflation pressure..................................481
Information............................................. 581
Replacing ...............................................540
Rotating tires ........................................ 474
Size ........................................................... 576
Snow tires ..............................................383
Spare tire................................................540
Tire pressure warning system .................................................. 475
T
*: For vehicles with a navigation system or a multimedia system, refer to the “NAVIGATION SYSTEM OWNER’S MANUAL” or“MULTIMEDIA OWNER’S MANUAL”.