2021 TOYOTA HIGHLANDER HYBRID child lock

556What to do if... (Troubleshooting)
HIGHLANDER HV_U
1-1.What to do if... (Troubleshooting)What to do if... (Troubleshooting)
If you lose your mechanical
keys, new genuine mechani-
cal keys can be made by your
Toyota dealer. ( P.495)
 If you lose your electronic
keys, the risk of vehicle theft
increases significantly. Con-
tact your Toyota dealer imme-
diately. ( P.495)
 Is the electronic key battery
weak or depleted? ( P.444)
 Is the power switch in ON?
When locking the doors, turn the
power switch off. ( P.215)
 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 due to the condition
of the radio wave. (
P.147)
 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.134)
 Did you press the power
switch while firmly depress-
ing the brake pedal?
( P.213)
 Is the shift lever in P?
( P.213)
 Is the electronic key any-
where detectable inside the
vehicle? ( P.146)
 Is the steering wheel
unlocked? ( P.214)
 Is the electronic key battery
weak or depleted?
In this case, the h ybrid system can
be started in a temporary way.
(  P.497)
 Is the 12-volt battery dis-
charged? ( P.498)
If you have a problem,
check the following before
contacting your Toyota
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
If you think something is
wrong
The hybrid system does
not start

559Alphabetical Index
HIGHLANDER HV_U
Alphabetical Index
A
A/C ........................................... 342Air conditioning filter ............. 439
Automatic air conditioning sys-tem ..................................... 342
Eco air conditioning mode .... 349
Front seat concentrated airflow mode (S-FLOW) ................. 351
Rear automatic air conditioning system ................................ 354
ABS (Anti-lock Brake System) ............................................... 325Warning light ........................ 468
ACA (Active Cornering Assist) ............................................... 325
Active Cornering Assist (ACA) ............................................... 325
Adaptive Front-lighting System (AFS)...................................... 231
AFS (Adaptive Front-lighting System) ................................. 231
AHB (Automatic High Beam) . 232
Air conditioning filter ............. 439
Air conditioning system ........ 342 Air conditioning filter ............. 439
Automatic air conditioning sys-tem ..................................... 342
Eco air conditioning mode .... 349
Front seat concentrated airflow mode (S-FLOW) ................. 351
Rear automatic air conditioning system ................................ 354
Airbags Airbag operating conditions.... 36
Airbag precautions for your child............................................. 39
Correct driving posture ........... 25
Curtain shield airbag operating conditions ............................. 37
Curtain shield airbag precautions ............................................. 39 Front passenger occupant clas-
sification system ...................43
General airbag precautions ....39
Locations of airbags ...............34
Modification and disposal of air- bags......................................42
Side airbag operating conditions .............................................37
Side airbag precautions..........39
Side and curtain shield airbags operating conditions .............37
Side and curtain shield airbags precautions ...........................39
SRS airbags ...........................34
SRS warning light .................468
Alarm .........................................81 Warning buzzer ....................466
Anchor brackets ... ..............52, 62
Antennas (smart key system)146
Anti-lock Brake System (ABS) ...............................................325Warning light.........................468
Approach warning ..................278
Armrest ......... ......................... ..382
Assist grips .............................382
Audio system-linked display .96, 106
Automatic air conditioning sys- tem .........................................342Eco air conditioning mode ....349
Automatic headlight leveling system ...................................230
Automatic High Beam ............232
Automatic light control system ...............................................230
Auxiliary boxes ...............368, 373
Average fuel economy .....94, 102
Average vehicle speed .....96, 106
AWD Control .....................97, 106
B
Back door ................................135

560Alphabetical Index
HIGHLANDER HV_UBack-up lights
Replacing light bulbs ............ 449
Battery (12-volt battery) Battery checking................... 421
If the 12-volt battery is dis-charged .............................. 498
Preparing and c hecking before
winter.................................. 333
Replacing ............................. 501
Warning light ........................ 467
Battery (traction battery) ......... 75
Blind Spot Monitor (BSM) ...... 286
Brake Brake hold ............................ 227
Fluid ............................. 420, 515
Parking brake ....................... 224
Regenerative braking ............. 72
Warning light ........................ 466
Brake assist ............................ 325
Break-in tips ........ ................... 191
Brightness control Instrument panel light control . 92
BSM (Blind Spot Monitor) ...... 286
Buzzer Hands off steering wheel warn-ing (LTA) ............................. 269
C
Care Exterior ................................. 400
Interior .................................. 403
Seat belts ............................. 403
Wheels and wheel ornaments........................................... 400
Cargo capacity ....................... 200
Cargo net hooks .. ................... 370
Chains ..................................... 334
Child restraint system Fixed with a LATCH system ... 60
Fixed with a seat belt ............. 55
Front passenger occupant clas-sification system ................... 43 Points to remember ................50
Riding with children ................49
Types of child restraint system
installation method ...............52
Using an anchor bracket ........62
Child safety 12-volt battery precautions .422, 502
Airbag precautions .................39
Back door precautions..........135
Child restraint system .............52
Heated steering wheel and seat heater precautio ns..............358
How your child should wear the seat belt ................................28
Moon roof precautions..........183
Panoramic moon roof precau- tions ....................................187
Power window lock switch ....181
Power window precautions...180
Rear door child-protectors ....134
Seat belt extender precautions .............................................29
Seat belt precautions..............49
Child-protectors......................134
Cleaning Exterior .................................400
Interior ..................................403
Radar sensor ........................244
Seat belts .............................403
Wheels and wheel ornaments...........................................400
Clock ....................................89, 92
Coat hooks ..............................383
Condenser ............. ..................419
Console box ............................366
Conversation mirror ...............389
Cooling system .......................418 Engine overheating ..............504
Hybrid system overheating ...505

561Alphabetical Index
HIGHLANDER HV_UCruise control
Dynamic radar cruise control with full-speed range .......... 271
Cup holders ............................ 367
Current fuel consumption94, 102
Curtain shield airbags ............. 34
Customizable features ........... 530
D
Daytime running light system229 Replacing light bulbs ............ 449
Defogger Outside rear view mirrors ... 344, 348
Rear window ................ 344, 348
Windshield.................... 344, 347
Differential Rear differential oil ............... 514
Digital Rearview Mirror .......... 167
Dimension ............................... 510
Dinghy towing ........................ 212
Display Dynamic radar cruise control with full-speed range .......... 271
Energy monitor ..................... 117
Head-up display ................... 112
Intuitive parking assist .......... 292
LTA (Lane Tracing Assist) ..... 266
Multi-informatio n display 92, 101
RCTA .................................... 300
Toyota Multi-operation touch 340
Warning message ................ 476
Distance until next engine oil change..................................... 91
Do-it-yourself maintenance ... 407
Door courtesy lights .............. 362
Door lock Back door ............................. 135
Side doors ............................ 131
Smart key system................. 146
Wireless remote control ....... 129 Doors
Automatic door locking and unlocking system ................134
Back door .............................135
Door glasses ........................179
Door lock ..............................135
Open door warning buzzer .132, 134
Outside rear view mirrors .....177
Rear door child-protectors ....134
Drive distance ...................96, 106
Drive information ..............96, 106
Driver’s seat position memory Driving position memory .......159
Memory recall function .........161
Drive-start control ..................191
Driving Break-in tips .........................191
Correct driving posture ...........25
Driving mode select switch ...322
Hybrid vehicle dri ving tips .....331
Procedures ...........................190
Winter drive tips....................333
Driving informatio n display ...93,
102
Driving mode select switch ...322
Driving position memory .......159 Memory recall function .........161
Driving range ....................94, 102
Driving support system informa- tion display......................96, 105
Dynamic radar cruise control with full-speed range............271Warning message.................281
E
ECB (Electronically Controlled Brake System).......................325
ECO Accelerator Guidance....94, 103
Eco drive mode .......................322
Eco score ..........................94, 103

568Alphabetical Index
HIGHLANDER HV_UReplacing
Electronic key battery ........... 444
Fuses ................................... 446
Light bulbs ............................ 449
Tires ..................................... 481
Reporting safety defects for U.S. owners................................... 544
Resetting the message indicat- ing maintenance is required 407
Road Sign Assist .................... 283
RSA (Road Sign Assist) ......... 283
S
Safety Connect ......................... 65
Seat belt reminder light . 469, 470
Seat belts .................................. 27 Automatic Locking Retractor .. 28
Child restraint system installation............................................. 52
Cleaning and maintaining the seat belt.............................. 403
Emergency Locking Retractor 28
How to wear your seat belt..... 28
How your child should wear the seat belt................................ 28
Pregnant women, proper seat belt use................................. 27
Reminder light and buzzer . 469, 470
Seat belt extender .................. 28
Seat belt pretensioners .......... 32
SRS warning light................. 468
Seat heaters ............................ 358
Seat position memory ............ 159
Seat ventilators ...................... 358
Seating capacity ..................... 200
Seats Adjustment ........................... 153
Adjustment precautions........ 153
Child seats/child restraint system installation ............................ 50
Cleaning ............................... 403 Driving position memory .......159
Head restraints .....................162
Properly sitting in the seat ......25
Seat heaters .......
..................358
Seat position memory...........159
Seat ventilators.....................358
Sensor Automatic headlight system .230
Automatic High Beam system...........................................232
Digital Rearview Mirror .........171
Inside rear view mirror ..........167
Intuitive parking assist ..........292
LTA (Lane Tracing Assist) .....260
Parking Support Brake function (rear-crossing vehicles) ......318
Parking Support Brake function (static objects) ....................313
Radar sensor ................243, 288
Rain-sensing windshield wipers ...........................................237
RCTA ....................................301
Service plug ..............................75
Service reminder message ....407
Shift lever Hybrid transmission ..............220
If th e s hif t le ver ca n no t b e s hif te d from P .................................221
Shift lever light........................362
Shift lock system ....................221
Shopping bag hooks ..............370
Side airbags ..............................34
Side doors Door lock ..............................131
Side marker lights Light switch...........................229
Replacing light bulbs ............449
Side mirrors Adjustment ...........................177
BSM (Blind Sport Monitor) ....286
Heaters .........................344, 348