2018 Lexus GS450h child lock

GS450h_OM_OM30G62U_(U)
1653-5. Opening, closing the windows and moon roof
3
Operation of each component
■Moon roof open warning buzzer
The buzzer sounds and a message is shown on the multi-information display in the instru-
ment cluster when the power switch is turned off and the driver’s door is opened with the
moon roof open.
■Customization
Settings (e.g. linked door lock operation) can be changed.
(Customizable features: →P. 494)
WARNING
Observe the following precautions.
Failure to do so may cause death or serious injury.
■Opening the moon roof
●Do not allow any passengers to put their hands or heads outside the vehicle while it is
moving.
●Do not sit on top of the moon roof.
■Closing the moon roof
●The driver is responsible for moon roof opening and closing operations.
In order to prevent accidental operation, especially by a child, do not let a child oper-
ate the moon roof. It is possible for child ren and other passengers to have body parts
caught in the moon roof.
●Check to make sure that all passengers do not have any part of their body in a posi-
tion where it could be caught when the moon roof is being operated.
●When using the mechanical key and operat ing the moon roof, operate the moon roof
after checking to make sure that there is no possibility of any passenger having any of
their body parts caught in the moon roof. Also, do not let a child operate moon roof
by the mechanical key. It is possible for children and other passengers to get caught in
the moon roof.
●When exiting the vehicle, turn the power swit ch off, carry the key and exit the vehicle
along with the child. There may be accidental operation, due to mischief, etc., that
may possibly lead to an accident.
■Jam protection function
●Never use any part of your body to intentionally activate the jam protection function.
●The jam protection function may not work if something gets caught just before the
moon roof fully closes.

GS450h_OM_OM30G62U_(U)
3636-3. Do-it-yourself maintenance
6
Maintenance and care
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following precautions before recharging:
●If recharging with the 12-volt battery installed on the vehicle, be sure to disconnect the
ground cable.
●Make sure the power switch on the charger is off when connecting and disconnecting
the charger cables to the 12-volt battery.
■After recharging/reconnecting the 12-volt battery
●The hybrid system may not start. Follow the procedure below to initialize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the hybrid system.
●Unlocking the doors using the smart access system with push-button start may not be
possible immediately after reconnecting the 12-volt battery. If this happens, use the
wireless remote control or the mechan ical key to lock/unlock the doors.
●Start the hybrid system with the power sw itch in ACCESSORY mode. The hybrid sys-
tem may not start with the power switch turned off. However, the hybrid system will
operate normally from the second attempt.
●The power switch mode is recorded by the vehicle. If the 12-volt battery is reconnected,
the vehicle will return the power switch mode to the status it was in before the 12-volt
battery was disconnected. Make sure to turn off the power switch before disconnect
the 12-volt battery. Take extra care when connecting the 12-volt battery if the power
switch mode prior to discharge is unknown.
If the system will not start even after multip le attempts at all methods above, contact your
Lexus dealer.
WARNING
■Chemicals in the 12-volt battery
The 12-volt battery contains poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death or serious
injury, take the following precautions while working on or near the 12-volt battery:
●Do not cause sparks by touching the 12-volt battery terminals with tools.
●Do not smoke or light a match near the 12-volt battery.
●Avoid contact with eyes, skin and clothes.
●Never inhale or swallow electrolyte.
●Wear protective safety glasses when working near the 12-volt battery.
●Keep children away from the 12-volt battery.
■Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12-volt battery in
a garage or closed room where th ere is insufficient ventilation.
■How to recharge the 12-volt battery
Recharge at a current of 5 A or less and make sure that the recharging period does not
exceed a total of 12 hours.
1
2
3

524What to do if... (Troubleshooting)
GS450h_OM_OM30G62U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be made
by your Lexus dealer. ( →P. 119)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. (→ P. 121)
●Is the electronic key battery weak or depleted? ( →P. 382)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. (→P. 183)
●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. 137)
●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. 125)
●The function to prevent the electronic key from being left inside the trunk will
operate and you can open th e trunk as usual. Take the key out from the trunk.
(→ P. 130)
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
The trunk lid is closed with the electronic key left inside

528Alphabetical index
GS450h_OM_OM30G62U_(U)
Alphabetical index
A/C ............................................................ 287Air conditioning filter....................... 380
Changing the rear seat settings .................................................294
Front automatic air conditioning system ..................................................287
Micro dust and pollen filter ...........293
Rear air conditioning system....... 298
S-FLOW mode ................................. 288
ABS (Anti-lock Brake System)....... 268 Function ................................................. 268
Warning light ...................................... 404
Warning message .............................. 410
Adaptive Front-lighting System (AFS) ....................................................... 201
Adaptive Variable Suspension system (AVS)...................................... 269
AFS (Adaptive Front-lighting System) ................................................... 201
Air conditioning filter ..........................380
Air conditioning system ..................... 287 Air conditioning filter....................... 380
Changing the rear seat settings .................................................294
Front automatic air conditioning system ..................................................287
Micro dust and pollen filter ...........293
Rear air conditioning system....... 298
S-FLOW mode ................................. 288 Airbags ........................................................ 35
Airbag operating conditions ...........42
Airbag precautions for your child ....................................... 38
Airbag warning light ........................ 404
Correct driving posture .................... 28
Curtain shield airbag operating conditions ........................42
Curtain shield airbag precautions .......................................... 40
Front passenger occupant classification system......................... 46
General airbag precautions ........... 38
Locations of airbags............................ 35
Modification and disposal of airbags................................................. 41
Side airbag operating conditions ..............................................42
Side airbag precautions .................... 38
Side and curtain shield airbags operating conditions ........................42
Side and curtain shield airbags precautions .......................................... 38
SRS airbags ............................................. 35
Alarm ............................................................ 77 Alarm ........................................................... 77
Warning buzzer...................... 404, 410
Anchor brackets....................................... 57
Antennas (smart access system with push-button start) ..................... 135
Anti-lock Brake System (ABS) ...... 268 Function .................................................. 268
Warning light ....................................... 404
Warning message...............................410
A

530Alphabetical index
GS450h_OM_OM30G62U_(U)
Child restraint system............................ 53Booster seats, definition ....................53
Booster seats, installation....................61
Convertible seats, definition ............ 53
Convertible seats, installation .........59
Front passenger occupant classification system ......................... 46
Infant seats, definition .......................... 53
Infant seats, installation .......................59
Installing CRS with LATCH anchors .................... 58
Installing CRS with seat belts ..........59
Installing CRS with top tether strap ......................... 62
Child safety ................................................ 52 12-volt battery precautions ........................... 363, 460
Airbag precautions ..............................38
Child restraint system ......................... 53
How your child should wear the seat belt ................................... 31, 32
Installing child restraints..................... 57
Moon roof precautions.................... 165
Power window lock switch ............ 160
Power window precautions .......... 162
Rear door child-protectors ........... 125
Removed electronic key battery precautions.............. 383
Seat belt comfort guide .......................31
Seat belt extender precautions ...... 34
Seat belt precautions ..........................56
Seat heater precautions................... 301
Trunk precautions................................. 131 Child-protectors .................................... 125
Cleaning .......................................336, 340
Aluminum wheels .............................. 337
Exterior ................................................... 336
Interior .....................................................340
Seat belts.................................................. 341
Clock........................................................... 315
Coat hooks ............................................. 320
Condenser.............................................. 359
Console box ........................................... 308
Console box light ................................. 309
Consumption screen ..............................112
Coolant .................................................... 358 Capacity................................................. 475
Checking ...............................................358
Preparing and checking before winter.................................................... 276
Cooling system ..................................... 358 Hybrid system overheating ............461
Consumption screen ............................109
Cruise control Cruise control ..................................... 255
Dynamic radar cruise control with full-speed range ................... 243
Cup holders............................................ 309
Curtain shield airbags ............................36
Customizable features .......................494

531Alphabetical index
GS450h_OM_OM30G62U_(U)
Daytime running light system ........... 201
DefoggerFront windshield .................................293
Outside rear view mirrors .............293
Rear window ........................................293
Differential ............................................... 476
Dimensions ............................................. 470
Dinghy towing........................................... 181
Display 12.3-inch display................................ 285
Drive information .................................. 97
Dynamic radar cruise control with full-speed range .................... 243
Energy monitor .................................... 109
LKA (Lane-Keeping Assist) ........ 238
Multi-information display ..................95
Trip information .................................... 88
Warning message .............................. 410
Do-it-yourself maintenance ............. 349
Door courtesy lights Location ................................................. 304
Door lock Doors ......................................................... 122
Smart access system with push-button start ............................. 135
Wireless remote control .................. 122 Doors .......................................................... 122
Automatic door locking and unlocking system .................... 125
Door glasses ......................................... 160
Door lock................................................. 124
Open door warning buzzer ..........136
Outside rear view mirrors ..............156
Rear door child-protector .............. 125
Drive info 1/Drive info 2/ Drive info 3........................................... 100 Drive information...................................97
Drive-Start Control..................... 169, 193
Driver’s seat position memory.......... 145 Driving position memory.................146
Memory recall function .................... 147
Power easy access system .............145
Driving ........................................................168 Break-in tips ...........................................169
Correct driving posture .................... 28
Driving mode select switch ..........258
Hybrid vehicle driving tips .............274
Procedures ............................................ 168
Winter drive tips ................................ 276
DRS (Dynamic Rear Steering) ........269 Function .................................................. 269
Warning message...............................410
DVD player
*
Dynamic radar cruise control with full-speed range Function .................................................. 243
Warning message...............................410
Dynamic Rear Steering (DRS) ........269 Function .................................................. 269
Warning message...............................410
D
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

539Alphabetical index
GS450h_OM_OM30G62U_(U)
Radar cruise control (dynamic radar cruise control with
full-speed range) ............................... 243
Radiator .................................................... 359
Radio
*
RBDS (Radio Broadcast Data Systems)
*
Rear air conditioning system ........... 298
Rear door sunshades ........................... 318
Rear personal lights.............................305
Rear side marker lights ......................200 Light switch .......................................... 200
Replacing light bulbs ........................393
Welcome light illumination cont rol ..........................123
Rear seat heaters.................................. 302
Rear sunshade ........................................ 318 Operation ............................................... 318
Reverse operation feature.............. 319
Rear turn signal lights .......................... 195 Replacing light bulbs ........................393
Turn signal lever .................................. 195
Rear view mirror Inside rear view mirror ..................... 154
Outside rear view mirrors .............. 156
Rear view monitor system
*
Rear window defoggers .................... 293
Refueling ....................................................213 Capacity ................................................. 472
Fuel types ............................................... 472
Opening the fuel tank cap...............214
When the fuel filler door cannot be opened .......................... 215 Regenerative braking............................. 67
Remote Touch
*.................................... 282
Replacing Electronic key battery ..................... 382
Fuses ........................................................384
Light bulbs...............................................391
Tires ............................................................ 441
Reporting safety defects for U.S. owners ....................................510
Resetting the message indicating maintenance is required .................344
Rev indicator ............................................. 90
Rev peak ..................................................... 90
Road accident cautions ......................... 72
Seat belts .................................................... 30 Adjusting the seat belt........................ 30
Automatic Locking Retractor .......... 31
Child restraint system installation ............................................. 59
Cleaning and maintaining the seat belt ......................................... 341
Emergency Locking Retractor (ELR) ................................... 31
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 ...........406
Seat belt extender .................................32
Seat belt pretensioners........................ 31
SRS warning light .............................. 404
R
S
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

540Alphabetical index
GS450h_OM_OM30G62U_(U)
Seat heaters ............................................ 302
Seat position memory...........................145
Seat ventilators ...................................... 302
Seating capacity...................................... 179
Seats.............................................................143Adjustment ............................................. 143
Adjustment precautions .................. 144
Child seats/child restraint system installation.............................. 57
Cleaning ................................................ 340
Driving position memory ................ 145
Head restraints ..................................... 150
Power easy access system ............ 145
Properly sitting in the seat ................ 28
Seat heaters ......................................... 302
Seat position memory....................... 145
Seat ventilators ................................... 302
Sensor Automatic headlight system .........202
Inside rear view mirror ..................... 155
Intuitive parking assist
*
LKA (Lane-Keeping Assist) ......... 234
Radar sensor ..............................219, 262
Rain-sensing windshield wipers ...................................................... 211
Service plug ............................................... 70
Service reminder indicators ............... 82 S-FLOW mode..................................... 288
Shift lever ...................................................189
Hybrid transmission .......................... 189
If the shift lever cannot be shifted from P ..............193
Shift lever light ....................................... 304
Shift lock system ..................................... 193
Side airbags ................................................36
Side display ............................................. 285
Side marker lights ................................ 200 Light switch...........................................200
Replacing light bulbs ....................... 393
Welcome light illumination control.................................................... 123
Side mirrors .............................................. 156 Adjusting and folding ........................156
BSM (Blind spot monitor) ............ 260
Linked mirror function when reversing................................. 158
Mirror position memory ..................145
Side turn signal lights ............................ 195 Replacing light bulbs ....................... 393
Turn signal lever ...................................195
Smart access system with push-button start ....................... 135 Antenna location..................................135
Entry functions ...................................... 122
Starting the hybrid system...............182
Warning message...............................410
Snow mode...............................................190
Snow tires ................................................ 280