2020 Lexus IS350 child lock

1693-5. Opening, closing the windows and moon roof
3
Operation of each component
IS350 AWD/IS350/IS300 AWD/IS300_U
■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 engine 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. 613)
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 exiting the vehicle, turn the engine switch off, carry the ke y 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.

636
IS350 AWD/IS350/IS300 AWD/IS300_UWhat to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, ne
w genuine mechanical keys can be made
by your Lexus dealer. ( P. 120)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. ( P. 123)
●Is the electronic key battery weak or depleted? ( P. 502)
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. (P. 187)
●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. 127)
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

640
IS350 AWD/IS350/IS300 AWD/IS300_UAlphabetical index
Alphabetical index
A/C .............................................................. 417
Air conditioning filter....................... 500
Automatic air conditioning system ....................................................417
AAC disc ................................................. 344
ABS (Anti-lock Brake System)........ 301 Warning light ...................................... 525
Adaptive Front-lighting System (AFS) ...................................... 203 Warning light ....................................... 527
Adaptive Variable Suspension system ........................... 302
AFS (Adaptive Front-lighting System) .................................................. 203 Warning light ....................................... 527
Air conditioning filter ..........................500
Air conditioning system ....................... 417 Air conditioning filter....................... 500
Automatic air conditioning system ....................................................417 Airbags .........................................................36
Airbag operating conditions ...........42
Airbag precautions for your child ....................................... 38
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............................ 36
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 ............................................. 36
SRS warning light .............................. 525
A

643Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U
Child safety ................................................ 52Airbag precautions ..............................38
Battery precautions ............. 483, 578
Child restraint system ......................... 53
How your child should wear the seat belt .......................................... 32
Installing child restraints..................... 57
Moon roof precautions.................... 169
Power window lock switch ............ 162
Power window precautions .......... 165
Rear door child-p rotectors ............ 127
Removed electronic key battery precautions.............. 503
Seat belt extender precautions ........................................... 35
Seat belt precautions ..........................56
Seat heater precautions..................426
Trunk precautions............................... 133
Child-protectors..................................... 127 Cleaning .......................................454, 458
Aluminum wheels ..............................455
Exterior ................................................... 454
Interior .....................................................458
Seat belts................................................ 459
Clock..........................................................437
Coat hooks ............................................... 441
Compass ..................................................449
Condenser.............................................. 480
Console box ............................................432
Cooling system ......................................478 Engine overheating .......................... 579
Cruise control Dynamic radar cruise control ..... 248
Cup holders............................................ 433
Current fuel consumption .................................. 112, 113
Curtain shield airbags ............................36
Customizable features ........................ 613

644Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U
Daytime running light system .......... 204
DefoggerOutside rear view mirrors ............. 422
Rear window ........................................ 422
Windshield ............................................ 422
Differential Front differential ................................. 593
Rear differential .................................. 594
Dimension ............................................... 586
Dinghy towing......................................... 185
Display Drive information ................................100
Dynamic radar cruise control......248
LDA (Lane Departure Alert with steering control) ....... 244
Multi-information display .................. 94
Warning message .............................532
Do-it-yourself maintenance ............. 468
Door courtesy lights Location ..................................................428
Wattage ..................................................597 Doors .......................................................... 124
Automatic door locking and unlocking system .................... 127
Door lock................................................. 126
Open door warning buzzer .......... 125
Open door warning light .............. 527
Outside rear view mirrors ..............159
Rear door child-protector .............. 127
Side windows ........................................ 162
Drive information .................................. 100
Drive-Start Control..................... 173, 195
Driver’s and front passenger’s seat belt reminder light....................527
Driver’s seat position memory.......... 147
Driving ........................................................ 172 Break-in tips ........................................... 174
Correct driving posture .................... 28
Driving mode select switch .......... 297
Procedures ............................................. 172
Winter drive tips ................................306
Dynamic radar cruise control ......... 248
D

652Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U
Rear view mirrorInside rear view mirror ..................... 157
Outside rear view mirrors .............. 159
Rear window defoggers .................... 422
Refueling ................................................... 218 Capacity ................................................ 589
Fuel types .............................................. 589
If the fuel filler door cannot be opened .........................220
Opening the fuel tank cap.............220
Remote Touch
*......................................412
Replacing Electronic key battery ..................... 502
Fuses........................................................ 504
Light bulbs ............................................ 507
Tires ......................................................... 559
Reporting safety defects for U.S. owners................................... 624
Resetting the message indicating maintenance is required ................ 462
Rev indicator ...............................................91
Rev peak .......................................................91 Seat belt reminder light ......................527
Seat belts .................................................... 30
Adjusting the seat belt.......................... 31
Automatic Locking Retractor .........32
Child restraint system installation ............................................. 60
Cleaning and maintaining the seat belt ....................................... 459
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 ........... 527
Seat belt extender .................................32
Seat belt pretensioners........................ 31
SRS warning light .............................. 525
Seat heaters............................................. 427
Seat position memory .......................... 147
Seat ventilators....................................... 427
Seating capacity .....................................183
S

653Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U
Seats, Front ...............................................143Adjustment ............................................. 143
Adjustment precautions .................. 144
Child seats/child restraint system installation.............................. 57
Cleaning ................................................ 458
Driving position memory .................147
Head restraints ..................................... 152
Power easy access system .............147
Properly sitting in the seat ................ 28
Seat heaters .......................................... 427
Seat position memory........................147
Seat ventilators .................................... 427
Seats, Rear ................................................145 Fold down the seatback .................. 145
Luggage security system .................. 131
Sensor Automatic headlight system .........204
Inside rear view mirror ..................... 158
Intuitive parking assist ..................... 260
LDA (Lane Departure Alert with steering control) ...................240
Radar sensor ........................... 224, 288
Rain-sensing windshield wipers .................................................... 216
Service reminder indicators ............... 84 Shift lever .................................................... 191
Automatic transmission ..................... 191
If the shift lever cannot be shifted from P ..............196
Shift lock system ..................................... 196
Shift position and gear position ......... 89
Side airbags ................................................36
Side marker lights ................................ 202 Light switch........................................... 202
Replacing light bulbs .......................... 511
Side mirrors .............................................. 159 Adjusting and folding ........................159
BSM (Blind Spot Monitor) ........... 260
Linked mirror function when reversing................................. 160
Mirror position memory .................. 147
Side turn signal lights ............................198 Replacing light bulbs .......................... 511
Turn signal lever .................................. 198
Side windows ........................................... 162
Slip indicator .......................................... 526
*: For vehicles with a naviga tion system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.