2018 Lexus GX460 child lock

622What to do if... (Troubleshooting)
GX460_OM_OM60Q09U_(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. 95)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. (→ P. 97)
●Is the electronic key battery weak or depleted? ( →P. 491)
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. (→P. 190)
●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. 117)
●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. 101)
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

626Alphabetical index
GX460_OM_OM60Q09U_(U)
Alphabetical index
A/C ................................................ 386, 396Air conditioning filter....................... 489
ABS (Anti-lock Brake System)........ 351 Function ................................................... 351
Warning light ...................................... 520
Active Traction Control .................... 352
Air conditioning filter .......................... 489
Air conditioning system ......... 386, 396 Air conditioning filter....................... 489
Micro dust and pollen filter ............ 391
Airbags ........................................................ 36 Airbag operating conditions ........... 44
Airbag precautions for your child........................................ 39
Airbag warning light ........................ 520
Correct driving posture .................... 28
Curtain shield airbag operating conditions........................ 44
Curtain shield airbag precautions ........................................... 39
General airbag precautions............ 39
Locations of airbags ............................ 36
Modification and disposal of airbags ............................ 43
Side airbag operating conditions .............................................. 44
Side airbag precautions..................... 39
Side and curtain shield airbags operating conditions........................ 44
Side and curtain shield airbags precautions ........................................... 39
SRS airbags.............................................. 36
SRS warning light.............................. 520
Alarm Alarm........................................................... 74
Warning buzzer ................................ 520 Anchor brackets...................................... 59
Antennas (smart access system
with push-button start) ...................... 115
Anti-lock brake system (ABS) ....................................................... 351 Function ....................................................351
Warning light .......................................520
Armrest ..................................................... 427
Assist grip ................................................ 428
Audio input
*
Audio system*
Automatic headlight leveling system ................................... 205
Automatic High Beam ....................... 206
Automatic light control system ...... 202
Automatic transmission....................... 194 If the shift lever cannot be shifted from P .................................... 198
S mode......................................................196
AUX port
*
Auxiliary boxes ....................................... 410
AVS ............................................................. 341
Back door ..................................................105
Back-up lights Replacing light bulbs ...................... 505
Wattage ................................................. 579
Battery ....................................................... 472 Battery checking .................................472
If the vehicle battery is discharged...........................................561
Preparing and checking before winter .....................................377
Warning light .......................................520
Bluetooth
®*
A
B

627Alphabetical index
GX460_OM_OM60Q09U_(U)
Bottle holders ......................................... 409
BrakeFluid........................................................... 577
Parking brake........................................ 201
Warning light ...................................... 520
Brake assist .............................................. 351
Break-in tips............................................. 159
Brightness control Instrument panel light control .....................................................84
BSM (Blind Spot Monitor)................ 357 The Blind Spot Monitor function ................................................362
The Rear Cross Traffic Alert function ............................................... 365
Care ................................................ 446, 449 Aluminum wheels ..............................446
Exterior....................................................446
Interior .....................................................449
Seat belts ............................................... 450
Cargo hooks ............................................ 412
Center differential................................ 342
CD player
*
Chains ........................................................377
Child restraint system............................ 55 Booster seats, definition ....................56
Booster seats, installation..................66
Convertible seats, definition ............56
Convertible seats, installation .............................................. 63 Installing child restraint system
with LATCH system.......................... 61
Installing child restraint system with seat belts...................................... 63
Installing child restraint system with top tether strap..........................67
Infant seats, definition.......................... 56
Infant seats, installation....................... 63
Child safety .................................................54 Airbag precautions.............................. 39
Back door precautions.....................107
Battery precautions .............. 473, 563
Child restraint system......................... 55
Glass hatch precaution ......................112
How your child should wear the seat belt ...........................................32
Installing child restraints .................... 59
Moon roof precautions ....................156
Power window lock switch............ 150
Power window precautions ........... 152
Rear door child-protectors ............. 101
Removed key battery precautions ....................................... 492
Seat belt precautions .......................... 33
Seat heater precautions ................. 399
Child-protectors ..................................... 101
Cleaning Aluminum wheels .............................. 446
Exterior ................................................... 446
Interior ..................................................... 449
Seat belts................................................450
Coat hooks ............................................. 428
Compass ..................................................429
C
*: For vehicles with a navigation system or a multimedia system, refer to the “NAVIGATION SYSTEM OWNER’S MANUAL” or“MULTIMEDIA OWNER’S MANUAL”.

628Alphabetical index
GX460_OM_OM60Q09U_(U)
Condenser .............................................. 469
Console box ........................................... 406
Cool box ....................................................419
Cooling system ..................................... 467Engine overheating.......................... 564
Conversation mirror ........................... 422
Crawl Control ....................................... 346
Cruise control Cruise control...................................... 225
Dynamic radar cruise control......228
Cup holders ............................................408
Curtain shield airbags ........................... 36
Current fuel consumption ................... 87
Customizable features ....................... 594
DAC (Downhill Assist Control system)................................................... 349
Daytime running light system .......... 204
Defogger Front windshield ................................ 390
Outside rear view mirrors .............. 391
Rear window ......................................... 391
Differential ............................................... 575
Dimension ............................................... 570
Display Multi-information display ..................86
Trip information ..................................... 87
Warning message ............................ 528
Do-it-yourself maintenance ............. 459
Doors............................................................ 98 Back door ........................................... 105
Door glasses ......................................... 150
Door lock ..................................................98
Open door warning light............... 522
Outside rear view mirrors ...............147
Rear door child-protector................ 101 Driver’s seat position memory.......... 135
Driving ........................................................158
AVS switch ............................................. 341
Break-in tips ...........................................159
Correct posture .................................... 28
Procedures ............................................ 158
Winter drive tips .................................377
Dynamic radar cruise control ......... 228
Eco Driving Indicator ............................ 90
EDR (Event data recorder)................... 10
Electronic key ............................................94 Battery-saving function ......................117
If the electronic key does not operate properly ........................... 558
Replacing the battery ........................491
Emergency, in case of If the electronic key does not operate properly ........................... 558
If the engine will not start ...............556
If the vehicle has discharged battery ..........................561
If the warning buzzer sounds .................................................520
If the warning light turns on ..........520
If you have a flat tire .......................... 542
If you lose your keys......................... 622
If you think something is wrong.................................................... 518
If your vehicle becomes stuck...................................................... 567
If your vehicle needs to be towed ..................................................... 512
If your vehicle overheats ................ 564
D
E

633Alphabetical index
GX460_OM_OM60Q09U_(U)
Power outlet ........................................... 423
Power windows ...................................... 150Jam protection function ..................... 151
Operation ............................................... 150
Window lock switch.......................... 150
Pre-Collision System (PCS) ............ 368 Function ................................................. 368
PCS OFF switch ............................... 369
Warning light ........................................ 521
Radiator .................................................... 469
Radio
*
Rear seat .................................................... 124 Adjustment ..............................................124
Rear turn signal lights .........................200 Replacing light bulbs ....................... 503
Turn signal lever ................................ 200
Wattage ..................................................579
Rear view mirror Inside rear view mirror ..................... 145
Outside rear view mirrors ...............147
Rear view monitor system ................ 254
Rear window defogger ........................391
Rear window wiper............................... 218
Refueling .................................................... 221 Capacity ................................................. 572
Fuel types ..................................... 221, 572
Opening the fuel tank cap............. 223 Replacing
Electronic key battery .......................491
Fuses ........................................................ 493
Light bulbs.............................................498
Tires .......................................................... 542
Wireless remote control battery ....................................................491
Reporting safety defects for U.S. owners .................................. 608
Reset the maintenance data ............ 453
Safety connect....................................... 439
Seat belts .................................................... 30 Adjusting the seat belt.......................... 31
Automatic Locking Retractor .........32
Child restraint system installation ............................................. 59
Cleaning and maintaining the seat belt .......................................450
Emergency Locking Retractor.................................................32
How to wear your seat belt............. 30
How your child should wear the seat belt ...........................................32
Pregnant women, proper seat belt use......................... 33
Reminder light and buzzer ........... 522
Seat belt pretensioners........................ 31
Seat belt extender .................................32
SRS warning light ..............................520
R
S
*: For vehicles with a navigation system or a multimedia system, refer to the “NAVIGATION SYSTEM OWNER’S MANUAL” or“MULTIMEDIA OWNER’S MANUAL”.

634Alphabetical index
GX460_OM_OM60Q09U_(U)
Seat heaters ............................................400
Seat ventilators ....................................... 401
Seat position memory.......................... 135
Seats................................................... 122, 124Adjustment ....................................122, 124
Adjustment precautions ........ 123, 134
Child seats/child restraint system installation..............................59
Cleaning .................................................449
Driving position memory ................ 135
Head restraint ....................................... 140
Properly sitting in the seat ................ 28
Seat position memory....................... 135
Ventilators .............................................. 401
Sensor Automatic headlight system .........204
Inside rear view mirror ..................... 146
Intuitive parking assist-sensor .....................................245
Rain-sensing windshield wipers .................................................... 216
Service reminder indicators ............... 78
Shift lever Automatic transmission ................... 194
If the shift lever cannot be shifted from P .................................... 198
Shift lock system...................................... 197
Shopping bag hooks .............................413
Side airbags ............................................... 36
Side mirrors .............................................. 147 Adjusting and folding.........................147
Blind Spot Monitor............................357
Side turn signal lights ..........................200 Replacing light bulbs ....................... 506
Turn signal lever ................................ 200 Smart access system with
push-button start.................................. 115 Antenna location................................... 115
Starting the engine ............................. 189
Snow tires .................................................379
Spare tire ..................................................542 Inflation pressure................................ 578
Storage location ................................. 543
Spark plug ................................................574
Specifications......................................... 570
Speedometer ............................................ 83
Steering lock Column lock release ......................... 192
Steering wheel ........................................ 143 Adjustment.............................................. 143
Audio switches
*
Heated steering wheel ................... 399
Steering wheel position memory.................................................135
Stop/tail lights Replacing light bulbs ...................... 506
Storage feature ..................................... 405
Stuck If the vehicle becomes stuck........ 567
Sun shade Roof ............................................................154
Sun visors................................................... 421
Switch “2nd START” button ..........................195
AVS switch ............................................. 341
BSM (Blind Spot Monitor) switch ................................................... 357
Center differential lock/ unlock switch.................................... 343
Crawl Control switch...................... 346