2018 LEXUS RX450h warning light

772 Alphabetical index
RX450h_RX450hL _U_OM48F85UBack door
Power back door .................................142
Touchless power back door ......... 144
Wireless remote control ..................142
Back-up lights
Replacing light bulbs ........................637
Wattage ....................................................719
Battery (12-volt battery)
Battery checking ............................... 605
If the 12-volt battery is
discharged ........................................ 695
Preparing and checking before
winter ................................................... 390
Replacing .............................................. 698
Warning light ...................................... 660
Battery (traction battery) ..................... 78
Blind Spot Monitor (BSM)..................319
Blind Spot Monitor
function ............................................ 323
Rear Cross Traffic Alert
function ............................................ 327 Bluetooth ®
............................................. 482
Audio system ....................................... 459
Hands-free system
(for cellular phone) .........................461
Bottle holders .........................................537
Brake
Brake Hold ........................................... 256
Fluid ............................................................ 716
Parking brake ...................................... 253
Regenerative braking ..........................76
Warning light ...................................... 660
Brake assist ............................................. 382
Brake Hold.............................................. 256
Warning light .........................................661
Break-in tips ............................................. 214
Brightness control
Instrument panel light control ........ 98
BSM (Blind Spot Monitor) ................. 319
Blind Spot Monitor function......... 323
Rear Cross Traffic Alert
function.................................................327B

774 Alphabetical index
RX450h_RX450hL _U_OM48F85UChild-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 ........................................196 D

775Alphabetical index
RX450h_RX450hL _U_OM48F85UDrive information .................................. 105
Drive-start control ..................... 213, 249
Driver’s seat belt reminder light ..... 662
Driver’s seat position memory ........... 181
Driving
Break-in tips ...........................................214
Correct posture.....................................30
Driving mode select switch ..........379
Hybrid vehicle driving tips............ 388
Procedures ............................................. 212
Winter drive tips ................................ 390
Driving position memory...................... 181
Memory recall function.................... 184
Power easy access system .............. 181
Dynamic radar cruise control
with full-speed range ....................... 306 E-Four ....................................................... 383
ECB (Electronically Controlled
Brake System) .................................... 382
Eco drive mode......................................379
EDR (Event data recorder).....................11
Electric motor
Location .....................................................74
Specification ........................................... 712
Electric Power Steering (EPS) ....... 383
Warning light .........................................661
Electronic key .......................................... 132
Battery-saving function ....................159
If the electronic key does not
operate properly ............................ 692
Replacing the battery ......................630
Electronically Controlled
Brake System (ECB) ....................... 382
Emergency flashers ............................ 652 E

776 Alphabetical index
RX450h_RX450hL _U_OM48F85UEmergency, in case of
If a warning buzzer sounds.......... 660
If a warning light turns on.............. 660
If a warning message is
displayed.............................................667
If the 12-volt battery is
discharged ........................................ 695
If the electronic key does not
operate properly.............................692
If the hybrid system will
not start ............................................... 690
If you have a flat tire ..........................673
If you lose your keys ................ 133, 135
If you think something is
wrong .................................................. 659
If your vehicle becomes
stuck ..................................................... 706
If your vehicle has to
be stopped in an
emergency........................................ 653
If your vehicle needs to be
towed................................................... 654
If your vehicle overheats ................702
Energy monitor ....................................... 124 Engine
ACCESSORY mode ..................... 240
Compartment ..................................... 597
Engine switch ...................................... 239
Hood........................................................595
How to start the hybrid
system .................................................. 239
Identification number......................... 712
If your vehicle has to be
stopped in an emergency..........653
Ignition switch (power switch) .... 239
Overheating......................................... 702
Power switch ....................................... 239
Engine coolant
Capacity................................................... 715
Checking ................................................ 601
Preparing and checking
before winter ....................................390
Engine coolant temperature
gauge .........................................................96
Engine oil
Capacity................................................... 713
Checking .............................................. 598
Preparing and checking
before winter ....................................390
Engine oil maintenance data ........... 600
Engine switch ......................................... 239
Enhanced VSC ..................................... 382
EPS
(Electronic Power Steering) ........ 383
Warning light .........................................661
EV drive mode .......................................244
EV indicator ............................................... 76
Event data recorder (EDR).....................11

779Alphabetical index
RX450h_RX450hL _U_OM48F85UI/M test ..................................................... 592
ICS (Intelligent Clearance
Sonar) .................................................... 342
Indicator..................................................... 92
Warning light .......................................662
Warning messages.............. 346, 353
Identification
Engine ........................................................ 712
Vehicle ....................................................... 711
Ignition switch (power switch) ........ 239
Illuminated entry system ..................... 531
Immobilizer system................................. 83
Indicators .................................................... 90
Initialization
Engine oil maintenance data....... 600
Items to initialize.................................. 749
Power back door ................................ 150
Tire pressure warning
system ................................................... 612
Inside rear view mirror .......................... 191
Instrument panel light control ............ 98
Intelligent Clearance Sonar
(ICS) ....................................................... 342
Indicator..................................................... 92
Warning light .......................................662
Warning messages.............. 346, 353
Interior lights........................................... 528
Switch.......................................................529
Wattage ....................................................719
Intuitive parking assist......................... 332 Jack
Positioning a floor jack....................596
Vehicle-equipped jack ................... 674
Jack handle .............................................. 674
Jam protection function
Electronic sunshade.........................205
Moon roof ...............................................201
Panoramic moon roof.....................205
Power back door opener
and closer ........................................... 150
Power windows.................................... 197I J
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

781Alphabetical index
RX450h_RX450hL _U_OM48F85ULicense plate lights
Light switch .......................................... 258
Replacing light bulbs ........................637
Light
Automatic High Beam .................... 262
Cornering lights..................................259
Fog light switch ...................................266
Headlight switch................................ 258
Illuminated entry system .................. 531
Interior light list ................................... 528
Interior lights .........................................529
Luggage compartment light ......... 148
Personal lights .................................... 530
Replacing light bulbs ........................637
Turn signal lever ................................. 252
Vanity lights ..........................................547
Wattage ....................................................719
Welcome lighting ............................... 261
Light bulbs
Replacing ...............................................637
Wattage ....................................................719
LKA (Lane-Keeping Assist)............. 297
Lock steering column ......................... 242
Luggage cover ........................................541 Maintenance
Do-it-yourself maintenance .........593
General maintenance .................... 589
Maintenance data................................710
Maintenance requirements .......... 587
Malfunction indicator lamp .............. 660
Meter
Head-up display ................................... 118
Indicators .................................................. 90
Instrument panel light
control..................................................... 98
Meters ........................................................ 96
Multi-information display.................. 101
Settings .................................................... 108
Warning lights.................................... 660
Warning messages .......................... 667
Mirrors
Inside rear view mirror....................... 191
Outside rear view mirror
defoggers.............................................516
Outside rear view mirrors ..............193
Vanity mirrors ..................................... 547 M
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

783Alphabetical index
RX450h_RX450hL _U_OM48F85UPaddle shift switches ................ 247, 248
Panic mode ...............................................133
Panoramic moon roof ........................ 204
Jam protection function ................. 205
Operation ..............................................204
Parking brake......................................... 253
Parking brake engaged
warning buzzer/message......... 255
Warning light ........................................ 661
Parking lights
Light switch .......................................... 258
Replacing light bulbs ........................637
PCS (Pre-Collision System) ............ 286
Warning light .......................................662
Personal lights........................................530
Power back door .................................... 142
Touchless power back door ......... 144
Wireless remote control ..................142
Power back door opener and
closer ........................................................ 142 Power control unit coolant
Capacity................................................... 715
Checking ................................................ 601
Preparing and checking
before winter ....................................390
Radiator .................................................. 602
Power easy access system .................. 181
Power outlets ......................................... 555
Power steering (Electric Power
Steering system)................................ 383
Warning light .........................................661
Power switch.......................................... 239
Power windows
Door lock linked window
operation ............................................. 198
Jam protection function.................... 197
Operation................................................196
Window lock switch ..........................196
Pre-Collision System (PCS)............ 286
Warning light ....................................... 662P
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

785Alphabetical index
RX450h_RX450hL _U_OM48F85US-FLOW mode .......................................514
Seat belts..................................................... 32
Adjusting 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.................................... 527S
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.