2019 LEXUS RX450H child

7008-2. Steps to take in an emergency
RX450h_RX450hL_U
WARNING
■Avoiding 12-volt battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable gas
that may be emitted from the 12-volt battery:
●Make sure each jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any other than the intended terminal.
●Do not allow the other end of the jumper cab le connected to the “+” terminal to come
into contact with any other parts or metal surfaces in the area, such as brackets or
unpainted metal.
●Do not allow the + and - clamps of the jump er cables to come into contact with each
other.
●Do not smoke, use matches, cigarette light ers or allow open flame near the 12-volt
battery.
■12-volt battery precautions
The 12-volt battery contains poisonous and co rrosive acidic electrolyte, while related
parts contain lead and lead compounds. Ob serve the following precautions when han-
dling the 12-volt battery:
●When working with the 12-volt battery, always wear safety glasses and take care not
to allow any battery fluids (acid) to come in to contact with skin, clothing or the vehicle
body.
●Do not lean over the 12-volt battery.
●In the event that battery fluid comes into contact with the skin or eyes, immediately
wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.
●Always wash your hands after handling the 12-volt battery support, terminals, and
other battery-related parts.
●Do not allow children near the 12-volt battery.
■After recharging the 12-volt battery
Have the 12-volt battery inspected at yo ur Lexus dealer as soon as possible.
If the 12-volt battery is deteriorating, continued use may cause the 12-volt battery to
emit a malodorous gas, which may be de trimental to the health of passengers.
■When replacing the 12-volt battery
●When the vent plug and indicator are close to the hold down clamp, the battery fluid
(sulfuric acid) may leak.
●For information regarding 12-volt battery replacement, contact your Lexus dealer.
●Make sure to replace the 12-volt battery with one designed for this vehicle. Other-
wise, hydrogen gas may enter the vehicle, possibly causing a fire or explosion.
●After replacing, securely attach the exhaust hose and exhaust hole plug to the
exhaust hole of the replaced 12-volt battery. If not properly installed, gases (hydro-
gen) may leak into the vehicle interior, an d there is the possible danger of the gas
igniting and exploding.

766
RX450h_RX450hL_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. 133)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. ( P. 135)
●Is the electronic key battery weak or depleted? ( P. 630)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. (P. 240)
●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. 160)
●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. 139)
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

770
RX450h_RX450hL_UAlphabetical index
Alphabetical index
A/C ............................................................ 507
Air conditioning filter........................625
Automatic air conditioning system ..................................... 507, 522
S-FLOW mode ................................... 514
ABS (Anti-lock Brake System)....... 382 Warning light ........................................ 661
Adaptive Front-lighting System (AFS) ...................................................... 259
Adaptive Variable Suspension System ................................................... 383
AFS (Adaptive Front-lighting System) .................................................. 259
Air conditioning filter .......................... 625
Air conditioning system Air conditioning filter........................625
Automatic air conditioning system ..................................... 507, 522
S-FLOW mode ................................... 514 Airbags .........................................................36
Airbag operating conditions .......... 43
Airbag precautions for your child.......................................................... 39
Airbag warning light ....................... 660
Correct driving posture .................... 30
Curtain shield airbag operating conditions ....................... 43
Curtain shield airbag precautions ............................................ 41
Front passenger occupant classification system..........................47
General airbag precautions ........... 39
Locations of airbags............................ 36
Modification and disposal of airbags .....................................................42
Seat cushion airbag ..............................37
Side airbag operating conditions ............................................. 43
Side airbag precautions .................... 39
Side and curtain shield airbags operating conditions ....................... 43
Side and curtain shield airbags precautions .......................................... 39
SRS airbag instructions for Canadian owners ................... 754
SRS airbags ............................................. 36
A

773Alphabetical index
RX450h_RX450hL_U
CareAluminum wheels ............................... 581
Exterior................................................... 580
Interior .................................................... 584
Seat belts ............................................... 585
Self-restoring coat ............................ 580
Cargo capacity............................ 220, 710
Cargo hooks .......................................... 540
Cargo net hooks ................................... 540
Chains .........................................................391
Child restraint system............................ 55 Booster seats installation................... 64
Convertible seats installation .............................................. 62
Front passenger occupant classification system ......................... 47
Infant seats definition .............................61
Infant seats installation ........................ 57
Installing CRS with LATCH anchors ................................................... 67
Installing CRS with seat belts ............................................................61
Installing CRS with top tether strap.......................................................... 70
LATCH anchors ................................... 67 Child safety
.................................................... 54
12-volt battery precautions .......................... 609, 700
Airbag precautions.............................. 39
Child restraint system......................... 55
How your child should wear the seat belt .............................. 33
Installing child restraints .................... 55
Moon roof precautions .................. 203
Panoramic moon roof precautions ....................................... 207
Power back door precautions ......................................... 152
Power window lock switch.............196
Power window precautions ...........199
Rear door child-p rotectors ............139
Removed key battery precautions .........................................631
Seat belt extender precautions .......................................... 35
Seat belt precautions .......................... 35
Seat heater precautions ................. 525
C

774Alphabetical index
RX450h_RX450hL_U
Child-protectors.....................................139
Cleaning.......................................580, 584 Aluminum wheels ............................... 581
Exterior................................................... 580
Interior .................................................... 584
Seat belts ............................................... 585
Clock ................................................ 96, 548
Coat hooks.............................................. 559
Compass .................................................. 567
Condenser .............................................. 602
Console box ........................................... 534
Consumption screen ................. 105, 124
Coolant Capacity .................................................. 715
Checking................................................. 601
Preparing and checking before winter ................................... 390
Cooling system ...................................... 601 Hybrid system overheating ..........702
Cornering lights .................................... 259
Cruise control Dynamic radar cruise control with full-speed range ................... 306
Cup holders ............................................ 535
Curtain shield airbags ........................... 37
Customizable features ....................... 736
Customized mode ............................... 379 Daytime running light system.......... 260
Defogger
Outside rear view mirrors ..............516
Rear window..........................................516
Windshield..............................................516
Differential ................................................ 716
Dimensions ............................................... 710
Dinghy towing ....................................... 238
Display Dynamic radar cruise control with full-speed range ...................306
Energy monitor..................................... 124
LKA (Lane-Keeping Assist)......... 302
Multi-information display.................. 101
Warning messages .......................... 667
Do-it-yourself maintenance............. 593
Doors Automatic door locking and unlocking system..............................139
Door lock................................................ 138
Outside rear view mirrors ..............193
Power back door ................................ 142
Rear door child-p rotectors ............139
Side doors ...............................................136
Side windows ........................................196D

785Alphabetical index
RX450h_RX450hL_U
S-FLOW mode .......................................514
Seat belts..................................................... 32Adjusting the seat belt ........................ 32
Automatic Locking Retractor ................................................ 33
Child restraint system installation ..............................................55
Cleaning and maintaining the seat belt .............................................. 585
Emergency Locking Retractor ................................................ 33
How to wear your seat belt ............. 32
How your child should wear the seat belt .............................. 33
Pregnant women, proper seat belt use.................................................... 34
Reminder light and buzzer ...........662
Seat belt extender................................. 33
Seat belt instructions for Canadian owners ...................753
Seat belt pretensioners ...................... 33
SRS warning light.............................. 660 Seat position memory ........................... 181
Seat ventilators.......................................527
Seating capacity ....................................223
Seats
Adjustment.............................................. 167
Adjustment precautions................... 167
Child seats/child restraint system installation ............................. 55
Cleaning.................................................584
Driving position memory.................. 181
Folding down the rear seatbacks ............................................ 168
Front seat heaters.............................. 526
Head restraint....................................... 186
Power easy access system .............. 181
Properly sitting in the seat ................ 30
Rear seat heaters ............................... 527
Seat position memory ........................ 181
Seat ventilators.................................... 527
S
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.