open LEXUS RX450H 2019 Owners Manual

768What to do if... (Troubleshooting)
RX450h_RX450hL_U
●The seat belt reminder light is flashing
Are the driver and the passengers wearing the seat belts?
( P. 662, 662)
●The parking brake indicator is on
Is the parking brake released? ( P. 253)
Depending on the situation, other types of warning buzzer may also sound.
( P. 660, 667)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 86)
Do one of the following to stop the alarms:
• Unlock the doors.
• Turn the power switch to ACCESSORY or ON mode, or start the hybrid system.
●Is the message displayed on the multi-information display?
Check the message on the multi-information display. ( P. 667)
●When a warning light turns on or a warning message is displayed, refer to
P. 660, 667.A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed

777Alphabetical index
RX450h_RX450hL_U
Flat tire ...................................................... 673
Floor mats ................................................... 28
FluidBrake ..........................................................716
Transmission...........................................716
Washer .................................................. 604
Fog lights Replacing light bulbs ........................637
Switch.......................................................266
Front automatic air conditioning system ......................... 507
Front passenger footwell hooks ...................................................... 557
Front passenger occupant classification system .............................47
Front passenger’s seat belt reminder light ..................................... 662
Front seat heaters................................. 526
Front seats ................................................. 167 Adjustment ..............................................167
Cleaning ................................................ 584
Correct driving posture ....................30
Driving position memory .................. 181
Head restraints ..................................... 186
Power easy access system .............. 181
Seat heaters ..........................................526
Seat position memory......................... 181
Front side marker lights Light switch .......................................... 258
Replacing light bulbs ........................637
Wattage ....................................................719 Front turn signal lights
Replacing light bulbs ....................... 637
Turn signal lever ................................. 252
Wattage ................................................... 719
Fuel Capacity................................................... 712
Fuel gauge ............................................... 96
Information............................................ 720
Refueling .................................................274
Type............................................................ 712
Fuel filler door......................................... 274 Refueling .................................................274
When the fuel filler door cannot be opened ..........................277
Fuses...........................................................632
Garage door opener.......................... 560
Gauges.........................................................96
Glove box ............................................... 534
Grocery bag hooks............................... 541
F
G

778Alphabetical index
RX450h_RX450hL_U
Hands-free system (for cellular phone) .............................461
Head restraints ....................................... 186
Head-up display....................................... 118
Headlight cleaner................................. 267
Headlights ............................................... 258 Automatic headlight leveling ...... 260
Automatic High Beam .................... 262
Light switch .......................................... 258
Replacing light bulbs ........................637
Wattage ....................................................719
Windshield wiper linked headlight illumination..................... 261
Heated steering wheel ....................... 526
Heaters Automatic air conditioning system ..................................... 507, 522
Heated steering wheel ....................526
Outside rear view mirrors .............. 516
Seat heaters ..............................526, 527
High mounted stoplight Replacing ...............................................637
Hill-start assist control ........................ 382
Hood .......................................................... 595 Open ....................................................... 595
Hooks Cargo hooks ....................................... 540
Cargo net hooks ............................... 540
Front passenger footwell hooks ....................................................557
Grocery bag hooks........................... 541
Retaining hooks (floor mat) ............. 28 Horn.............................................................189
HUD (Head-up display)....................... 118
Humidity sensor...................................... 521
Hybrid battery air vent ........................... 79
Hybrid battery (traction battery)
Location .................................................... 78
Specification ........................................... 713
Hybrid system............................................ 74 Emergency shut off system ..............79
Energy monitor/consumption screen....................... 124
EV drive mode ................................... 244
High voltage components ............... 78
Hybrid System Indicator ................... 99
Hybrid system precautions ............. 78
Hybrid vehicle driving tips ........... 388
If the hybrid system will not start....................................................... 690
Overheating......................................... 702
Power (ignition) switch................... 239
Regenerative braking ..........................76
Starting the hybrid system............. 239
Vehicle proximity notification system ..................................................... 75
Hybrid System Indicator .......................99
Hybrid transmission .............................246 If the shift lever cannot be shifted from P ...................................250
Paddle shift switches............ 247, 248
S mode.................................................... 248
H

779Alphabetical index
RX450h_RX450hL_U
I/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 openerand closer ........................................... 150
Power windows.................................... 197
IJ
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

782Alphabetical index
RX450h_RX450hL_U
Moon roofDoor lock linked moon roof operation ................................... 198
Jam protection function ................... 201
Operation ............................................. 200
MP3 disc.................................................. 433
Multi-information display AWD Control display ...................... 106
Clock...........................................................96
Drive information ................................ 105
Dynamic radar cruise control with full-speed range ................... 306
Energy monitor .....................................124
G-force display.................................... 107
Language .................................................. 113
LKA (Lane-Keeping Assist) ........ 302
Outside temperature ..........................96
PCS (Pre - Collision system) ......287
Settings .....................................................108
Suggestion function ............................. 116
Sway warning display ....................... 106
Warning messages...........................667 Navigation system
*
Noise from under vehicle ........................8
Odometer .................................................. 115
Oil
Engine oil ................................................. 713
Rear differential oil .............................. 716
Opener Fuel filler door...................................... 276
Hood........................................................595
Power back door ................................ 143
Outside rear view mirrors .................. 193 Adjusting and folding ........................193
Blind Spot Monitor (BSM) .............319
Linked mirror function when reversing..................................194
Mirror position memory ................... 181
Outside rear view mirror defoggers.............................................516
Outside temperature display ..............96
Overheating............................................702
N
O

783Alphabetical index
RX450h_RX450hL_U
Paddle shift switches ................ 247, 248
Panic mode ...............................................133
Panoramic moon roof ........................ 204Jam 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 ....................................... 662
P
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

784Alphabetical index
RX450h_RX450hL_U
Radar cruise control (dynamic radar cruise control
with full-speed range) ..................... 306
Radiator .................................................... 602
Radio.......................................................... 426
Rear automatic air conditioning system .................................................... 522
Rear Cross Traffic Alert ......................319
Rear Cross Traffic Auto Brake ...................................................... 356
Rear door sunshades .......................... 557
Rear passengers’ seat belt reminder light ..................................... 662
Rear seat Folding down the rear seatbacks ............................................. 168
Rear side marker lights Light switch .......................................... 258
Replacing light bulbs ........................637
Rear turn signal lights Replacing light bulbs ........................637
Turn signal lever ................................. 252
Wattage ....................................................719 Rear view mirror
Inside rear view mirror....................... 191
Outside rear view mirrors ..............193
Rear window defogger ........................ 516
Rear window wiper .............................. 272
Refueling................................................... 274 Capacity................................................... 712
Fuel types................................................. 712
Opening the fuel tank cap .............274
When the fuel filler door cannot be opened ..........................277
Regenerative braking............................. 76
Remote Touch
*.................................... 500
Replacing Electronic key battery .....................630
Fuses ........................................................ 632
Light bulbs............................................. 637
Tires .......................................................... 673
Windshield wiper inserts ............... 628
Reporting safety defects for U.S. owners ...................................752
Resetting the message indicating maintenance is required ................ 588
Rev indicator ............................................. 98
Rev peak ..................................................... 98
Road accident cautions .......................... 81
R

787Alphabetical index
RX450h_RX450hL_U
SwitchesAudio remote control switches .............................................. 406
Automatic High Beam switch ..... 262
Brake hold switch ..............................256
Cruise control switch................................................... 306
Door lock switch ................................. 138
Driving mode select switch ..........379
Driving position memory switches .................................................. 181
Electronic sunshade switch ..........204
Emergency flashers switch ...........652
EV drive mode switch ..................... 244
Fog light switch ...................................266
Garage door opener switches .............................................. 560
Heated steering wheel switch....................................................526
HUD (Head-up display) switches .................................................. 118
Ignition switch ......................................239
Light switch .......................................... 258
LKA (Lane-Keeping Assist) switch..................................................... 301
Meter control switches .................... 103
Moon roof switches......................... 200
“ODO/TRIP” switch ......................... 104
Outside rear view mirror switches ................................................ 193 Paddle shift switches............ 247, 248
Panoramic moon roof
switches .............................................. 204
Parking brake switch ....................... 253
Power back door opener and closer switch .................. 143, 145
Power switch ....................................... 239
Power window switch .......................196
Rear window and outside rear view mirror
defoggers switch..............................516
Rear window wiper and washer switch ...................................272
Seat heater switches ............ 526, 527
Seat ventilator switches .................. 527
“SOS” button ......................................... 571
Talk switch................................... 471, 493
Telephone switch ................................ 471
Vehicle-to-vehicle distance button................................306
VSC OFF switch ...............................384
Window lock switch ..........................196
Windshield wiper and washer switch .................................. 267

790Alphabetical index
RX450h_RX450hL_U
Warning buzzersApproach warning ............................. 314
Downshifting ........................................249
Intuitive parking assist ......................336
Lane departure alert function ..... 298
Light reminder .................................... 260
Open door ............................................. 140
Pre-collision warning .......................287
Seat belt reminder .............................662
Vehicle sway warning .....................299
Warning lights ABS............................................................ 661
Brake hold operated indicator ............................................... 661
Brake system....................................... 660
Charging system............................... 660
Electric power steering.................... 661
ICS OFF indicator.............................662
LKA indicator........................................ 661
Low fuel level .......................................662
Malfunction indicator lamp .......... 660
Master warning light........................ 663
Parking brake indicator ................... 661
PCS warning light .............................662
Seat belt reminder light...................662
Slip indicator .......................................... 661
SRS ........................................................... 660
Tire pressure ........................................662 Warning messages............................... 667
Washer
Checking ...............................................604
Low washer fluid warning message...............604, 667
Preparing and checking before winter ....................................390
Switch ........................................... 267, 272
Washing and waxing .......................... 580
Weights Cargo capacity.........................220, 710
Load limits ................................... 223, 710
Weights ....................................................710
Wheels ......................................................623 Replacing wheels .............................. 623
Size ............................................................. 717
Window glasses...................................... 196
Window lock switch.............................. 196
Windows Power windows....................................196
Rear window defogger ....................516
Washer ........................................ 267, 272
Windshield wiper de-icer ................... 516
Windshield wiper inserts .................. 628
Windshield wipers ................................ 267 Rain-sensing windshield wipers................................................... 267
Replacing a windshield wiper insert ..................................................... 628
W

792
RX450h_RX450hL_UGAS STATION INFORMATION
Auxiliary catch leverFuel filler door
P. 595 P. 276
Hood lock release leverFuel filler door openerTire inflation pressure
P. 595 P. 276 P. 717
Fuel tank capacity
(Reference)17.2 gal. (65 L, 14.3 Imp. gal.)
Fuel type
Unleaded gasoline only P. 712
Cold tire inflation
pressure P. 717
Engine oil capacity
(Drain and refill —
reference)P. 713
Engine oil type“Toyota Genuine Motor
Oil” or equivalent
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20 P. 714