2021 LEXUS RX350 child lock

4327-2. Steps to take in an emergency
1Insert the mechanical key while
pulling on the driver’s door handle.
2 Unlock the door.
Turning the key rearward unlocks the
driver’s door. Turning the key again unlocks
the other doors.
3Remove the key, return the handle,
and then pull the handle again.
■Locking the door
1 With the door open, push down the
inside lock button.
2 Close the door.
■Key linked functions
1 Closes the windows and the moon
roof
* or panoramic moon roof* (turn
and hold)
2 Opens the windows and the moon
roof
* or panoramic moon roof* (turn
and hold)
These settings must be customized at your
Lexus dealer.
*: If equipped
1 Ensure that the shift lever is in P and
depress the brake pedal.
2 Touch the Lexus emblem side of the
electronic key to the engine switch.
When the electronic key is detected, a
buzzer sounds and the engine switch will
turn to IGNITION ON mode.
WARNING
■When using the mechanical key and
operating the power windows or the
moon roof or panoramic moon roof
Operate the power window or the moon
roof or panoramic moon roof after
checking to make sure that there is no
possibility of any passe nger having any of
their body parts caught in the window or
the moon roof or panoramic moon roof.
Also, do not allow children to operate the
mechanical key. It is possible for children
and other passengers to get caught in
the power window or the moon roof or
panoramic moon roof.
Starting the engine

490What to do if... (Troubleshooting)
1-1.What to do if... (Troubleshooting)What to do if... (Troubleshooting)
If you lose your mechanical keys,
new genuine mechanical keys can
be made by your Lexus dealer.
( P.430)
 If you lose your electronic keys, the
risk of vehicle theft increases signifi-
cantly. Contact your Lexus dealer
immediately. ( P.430)
 Is the electronic key battery weak or
depleted? ( P.379)
 Is the engine switch in IGNITION
ON mode?
When locking the doors, turn the engine
switch off. ( P.177)
 Is the electronic key left inside the
vehicle?
When locking the doors, make sure that
you have the electronic key on your per-
son.
The function may not operate prop-
erly due to the condition of the radio
wave. ( P.116)
 Is the child-protector lock set?
The rear door cannot be opened from
inside the vehicle when the lock is set.
Open the rear door from outside and then
unlock the child-protector lock. ( P.102)
 Did you press the engine switch
while firmly depressing the brake
pedal? ( P.174)
 Is the shift lever in P? ( P.174)
 Is the electronic key anywhere
detectable inside the vehicle?
( P.115)
 Is the steering wheel unlocked?
( P.175)
 Is the electronic key battery weak or
depleted?
In this case, the engine can be started in a
temporary way. ( P.432)
 Is the battery discharged?
( P.433)
If you have a problem, check the
following before contacting your
Lexus dealer.
The doors cannot be locked,
unlocked, opened or closed
You lose your keys
The electronic key does not
operate properly
The doors cannot be locked or
unlocked
The rear door cannot be opened
If you think something is wrong
The engine does not start
The shift lever cannot be shifted
from P even if you depress the
brake pedal

493Alphabetical Index
Alphabetical Index
A
A/CAir conditioning filter ............................... 376
Front automatic air conditioning system......................................................................... 292
Front seat concentr ated airflow mode
(S-FLOW)................................................ 300
Micro dust and pollen filter................... 299
Rear automatic air conditioning system .........................................................................303
ABS (Anti-lock Brake System)...............274 Warning light ...............................................405
ACA (Active Cornering Assist) ........... 275
Active Cornering Assist (ACA) ........... 275
Adaptive Front-lighting System (AFS) 190
Adaptive Variable Suspension System275
AFS (Adaptive Front-lighting System) 190
AHB (Automatic High Beam) .................. 191
Air conditioning filter ................................. 376
Air conditioning system Air conditioning filter ............................... 376
Front automatic air conditioning system......................................................................... 292
Front seat concentr ated airflow mode
(S-FLOW)................................................ 300
Micro dust and pollen filter................... 299
Rear automatic air conditioning system .........................................................................303
Airbags Airbag operating conditions................... 33
Airbag precautions for your child ........ 36
Correct driving posture ............................ 25
Curtain shield airbag operating condi- tions .................................................................. 33
Curtain shield airbag precautions ....... 36
Front passenger occupant classification system ............................................................. 39
General airbag precautions ................... 36
Locations of airbags.................................... 30
Modification and disposal of airbags . 38
Side airbag operating conditions ......... 33 Side airbag precautions ............................ 36
Side and curtain shie
ld airbags operating
conditions ...................................................... 33
Side and curtain shield airbags precau- tions .................................................................. 36
SRS airbags......................................................30
SRS warning light...................................... 404
Alarm ................................................................... 68 Warning buzzer ........................................ 403
Anchor brackets ..................................... 46, 57
Antennas (smart acc ess system with
push-button start)........................................ 115
Anti-lock Brake System (ABS)...............274 Warning light .............................................. 405
Approach warning...................................... 233
Armrest............................................................ 330
Assist grips ..................................................... 330
Audio system-linked display ...................... 85
Automatic headlight leveling system ... 189
Automatic High Beam ................................. 191
Automatic light control system............... 188
Automatic transmission ..............................178 M mode ............................................................. 181
Paddle shift switches ........................ 180, 181
Auxiliary boxes ..................................... 317, 319
Average fuel economy................................. 82
Average vehicle speed ................................ 82
AWD Control.................................................. 83
B
Back door ........................................................ 103
Back-up light Wattage ..........................................................449
Back-up lights Replacing light bulbs .....................385, 391
Battery Battery checking ........................................363
If the battery is discharged ....................433
Preparing and checking before winter......................................................................... 280
Warning light .............................................. 404
Blind Spot Monitor (BSM)....................... 236

494Alphabetical Index
Bottle holders..................................................316
BrakeBrake hold...................................................... 186
Fluid ...................................................... 362, 447
Parking brake ............................................... 183
Warning light ...............................................403
Brake assist .....................................................274
Break-in tips.................................................... 155
Brightness control Instrument panel light control ................80
BSM (Blind Spot Monitor)....................... 236
Buzzer Hands off steering wheel warning (LTA)......................................................................... 223
C
Care Exterior ........................................................... 344
Interior ............................................................. 347
Seat belts........................................................ 347
Wheels and wheel ornaments............ 344
Cargo capacity.....................................159, 162
Cargo hooks ................................................... 317
Cargo net hooks ............................................ 317
Center Display .............................................288
Chains ................................................................281
Child restraint system Fixed with a LATCH system .................. 54
Fixed with a seat belt...................................50
Front passenger occupant classification system ............................................................. 39
Points to remember .................................... 45
Riding with children ..................................... 45
Types of child restraint system installation method ........................................................... 46
Using an anchor bracket .......................... 57
Child safety Airbag precautions...................................... 36
Battery precautions ......................364, 436
Child restraint system................................. 46
Heated steering wheel and seat heater precautions................................................306 How your child should wear the seat belt
............................................................................. 27
Moon roof precautions............................ 148
Panoramic moon roof precautions ..... 151
Power back door precautions ............. 103
Power window lock switch .................... 146
Power window precautions .................. 145
Rear door child-protectors ................... 102
Seat belt extender precautions.............. 27
Seat belt precautions .................................. 45
Child-protectors............................................102
Cleaning Exterior............................................................ 344
Interior ............................................................. 347
Radar sensor ................................................203
Seat belts ........................................................ 347
Wheels and wheel ornaments ............344
Clock ..........................................................77, 331
Coat hooks.......................................................331
Coin box............................................................316
Compass ......................................................... 340
Condenser ..................................................... 362
Console box ....................................................314
Consumption screen .................................... 92
Cooling system...............................................361 Engine overheating................................... 437
Cornering lights ............................................ 190 Replacing light bulbs ............................... 385
Cruise control Dynamic radar cruise control with full-speed range ...................................... 227
Cup holders .....................................................315
Current fuel consumption .......................... 82
Curtain shield airbags .................................. 30
Customizable features ................................461
D
Daytime running light system .................. 188
Defogger Outside rear view mirrors..................... 294
Rear window ................................................ 294
Windshield .................................................... 294

495Alphabetical Index
DifferentialRear differential oil .................................... 447
Dimension ...................................................... 442
Dinghy towing................................................. 173
Display Center Display............................................288
Dynamic radar cruise control with full-speed range .......................................227
Head-up display ...........................................88
Intuitive parking assist.............................. 244
LTA (Lane Tracing Assist)...................... 221
Multi-information display ............................81
RCTA ..............................................................250
Warning message....................................... 412
Distance until next engine oil change .... 80
Do-it-yourself maintenance ......................351
Door courtesy lights ................................... 309 Wattage.......................................................... 449
Door lock Power back door........................................ 103
Side doors ........................................................ 99
Smart access system with push-button start ................................................................... 115
Wireless remote control........................... 97
Door pockets ..................................................316
Doors Automatic door lock ing and unlocking
system ............................................................102
Door glasses .................................................. 144
Door lock warning buzzer .................... 100
Open door warning buzzer ..................102
Outside rear view mirrors ........................141
Rear door child-protectors ....................102
Side doors ........................................................ 99
Drive distance .................................................. 82
Driver’s seat position memory Driving position memory.........................133
Memory recall function ............................135
Power easy access system .....................133
Drive-start control ....................................... 155
Driving Break-in tips .................................................. 155 Correct driving posture ............................ 25
Driving mode select switch .................... 271
Procedures .................................................... 154
Winter drive tips ........................................ 280
Driving assist system information ............ 85
Driving information disp lay ........................ 82
Driving position memory............................133 Memory recall function............................ 135
Power easy access system .................... 133
Driving range ................................................... 82
Dynamic radar cruise control with full-speed range .........................................227Warning message .....................................235
Dynamic Torque Control AWD system .......................................................................... 275
E
Eco Driving Indicator............................83, 92
Eco Driving Indicator Light ........................ 83
EDR (Event data recorder) ............................7
Elapsed time ..................................................... 82
Electric Power Steering (EPS) .............. 275 Warning light .............................................. 405
Electronic key .................................................. 96 Battery-saving function.............................. 116
If the electronic key does not operate properly .........................................................431
Replacing the battery ............................... 379
Electronic sunshade Jam protection function ........................... 150
Operation ....................................................... 149
Emergency flashers .................................... 394
Emergency, in case of If a warning buzzer sounds.................. 403
If a warning light turns on...................... 403
If a warning message is displayed .......412
If the battery is discharged ....................433
If the electronic key does not operate properly .........................................................431
If the engine will not start........................428
If the fuel filler do or cannot be opened
......................................................................... 430

501Alphabetical Index
Head restraints .............................................136
Seat heaters ..................................................306
Rear side marker lights Light switch .................................................... 188
Replacing light bulbs............................... 385
Rear turn signal lights Replacing light bulbs................... 385, 389
Turn signal lever ...........................................182
Wattage.......................................................... 449
Rear view mirror Inside rear view mirror............................. 140
Outside rear view mirrors ........................141
Rear window defogger ............................. 294
Rear window wiper.......................................199
Refueling Capacity ......................................................... 444
Fuel types....................................................... 444
If the fuel filler door cannot be opened.........................................................................430
Opening the fuel tank cap ....................200
Remote Touch .............................................. 286
Replacing Electronic key battery.............................. 379
Fuses ................................................................. 381
Light bulbs.....................................................384
Tires ....................................................................416
Resetting the message indicating mainte- nance is required ...................................... 350
Rev indicator .................................................... 78
Rev peak..............................................................79
Road Sign Assist .......................................... 225
RSA (Road Sign Assist) ............................ 225
S
Seat belt reminder ligh t............................. 406
Seat belts............................................................ 26 Automatic Locking Retractor ................ 28
Child restraint system installation ......... 46
Cleaning and maintaining the seat belt......................................................................... 347
Emergency Locking Retractor .............. 28
How to wear your seat belt ......................27 How your child should wear the seat belt
............................................................................. 27
Pregnant women, proper seat belt use ............................................................................. 26
Reminder light and buzzer .................. 406
Seat belt extender......................................... 27
Seat belt pretensioners .............................. 29
SRS warning light...................................... 404
Seat heaters ................................................... 306
Seat position memory..................................133
Seat ventilators ............................................. 306
Seating capacity.............................................162
Seats Adjustment ............................................. 121, 123
Adjustment precautions .................. 121, 122
Child seats/child restraint system installa-tion .................................................................... 45
Cleaning ......................................................... 347
Driving position memory ........................ 133
Folding down the rear seatbacks ........123
Head restraints............................................. 136
Power easy access system .................... 133
Properly sitting in the seat ........................ 25
Seat heaters ................................................. 306
Seat position memory .............................. 133
Seat ventilators ........................................... 306
Sensor Automatic headlight system .................. 188
Automatic High Beam system ............... 191
Inside rear view mirror ............................. 140
Intuitive parking assist .............................. 244
LTA (Lane Tracing Assist) ......................216
Parking Support Brake function (rear-crossing vehicles) ...................... 267
Parking Support Brake function (static objects) ........................................................ 262
Radar sensor ................................... 203, 238
Rain-sensing windshield wipers ...........197
RCTA............................................................... 252
Service reminder message .....................350
Shift lever Automatic transmission ........................... 178