Page 585 of 660
5858-1. Specifications
8
Vehicle specifications
RX450h_U_OM0E013U
*: The engine oil capacity is a reference quantity to be used when changing the engineoil. Warm up the engine and turn off the hybrid system, wait more than 5 minutes, and
check the oil level on the dipstick.
Hybrid battery (traction battery)
TypeNickel-Metal hydride battery
Voltage9.6 V/module
Capacity6.5 Ah (3HR)
Quantity30 modules
Overall voltage288 V
Lubrication system
Oil capacity
(Drain and refill — reference
*)
With filterVehicles with towing package
5.8 qt. (5.5 L, 4.8 Imp. qt.)
Vehicles without towing package
5.7 qt. (5.4 L, 4.8 Imp. qt.)
Without filter5.6 qt. (5.3 L, 4.7 Imp. qt.)
Page 643 of 660

643Alphabetical index
RX450h_U_OM0E013U
CoolantCapacity ................................................ 587
Checking................................................ 479
Preparing and checking before winter ................................... 390
Cooling system ..................................... 479 Hybrid system overheating ..........574
Cornering lights .................................... 252
Cruise control Cruise control..................................... 335
Dynamic radar cruise control...... 323
Dynamic radar cruise control with full-speed range ....................... 311
Cup holders ............................................ 423
Curtain shield airbags ........................... 39
Customizable features ....................... 607
Customized mode ................................377 Daytime running light system.......... 253
Defogger
Outside rear view mirrors ............409
Rear window........................................409
Windshield............................................409
Differential .............................................. 588
Dimension ............................................... 582
Dinghy towing ......................................... 231
Display Dynamic radar cruise control ..... 323
Dynamic radar cruise control with full-speed range .......................311
Energy monitor..................................... 124
LDA (Lane Departure Alert with steering control) ...................306
LKA (Lane-Keeping Assist)......... 297
Multi-information display.................102
Warning messages .......................... 543
Do-it-yourself maintenance............... 471
Doors Automatic door locking and unlocking system..............................139
Door lock................................................ 138
Outside rear view mirrors ............. 185
Power back door ................................ 142
Rear door child-p rotectors ............139
Side doors ...............................................136
Side windows ....................................... 189
Drive information ................................... 106
Drive-start control .................... 205, 242
Driver’s seat belt reminder light .... 538
Driver’s seat position memory.......... 174D
Page 644 of 660

644Alphabetical index
RX450h_U_OM0E013U
DrivingBreak-in tips ........................................ 206
Correct posture.....................................30
Driving mode select switch .......... 377
Hybrid vehicle driving tips.............387
Procedures ...........................................204
Winter drive tips ................................ 390
Driving position memory..................... 174 Memory recall function..................... 177
Power easy access system .............174
Dynamic radar cruise control ......... 323
Dynamic radar cruise control with full-speed range .......................... 311
E-Four ....................................................... 382
ECB (Electronically Controlled Brake System) ..................................... 381
Eco drive mode ......................................377
EDR (Event data recorder) .................... 11
Electric motor Location ..................................................... 76
Specification ........................................ 584
Electric Power Steering (EPS) ........ 381 Warning light .......................................537
Electronic key ..........................................132 Battery-saving function .................... 159
If the electronic key does not operate properly............................ 564
Replacing the battery ...................... 506 Electronically Controlled
Brake System (ECB) .........................381
Emergency flashers ............................ 528
Emergency, in case of If a warning buzzer sounds ..........536
If a warning light turns on ..............536
If a warning message is displayed ............................................ 543
If the 12-volt battery is discharged........................................ 568
If the electronic key does not operate properly ............................564
If the hybrid system will not start .................................................561
If you have a flat tire ..........................549
If you lose your keys................ 133, 135
If you think something is wrong...................................................535
If your vehicle becomes stuck...................................................... 578
If your vehicle has to be stopped in an
emergency ........................................ 529
If your vehicle needs to be towed ...................................................530
If your vehicle overheats ................ 574
Energy monitor ....................................... 124
E
Page 656 of 660

656Alphabetical index
RX450h_U_OM0E013U
Tachometer ................................................97
Tail lightsLight switch ............................................ 251
Replacing light bulbs ......................... 513
Theft deterrent system Alarm........................................................... 87
Immobilizer system ............................. 85
Tire inflation pressure Maintenance data ............................. 589
Warning light ...................................... 538
Tire information ..................................... 594 Glossary .................................................. 601
Size ............................................................597
Tire identification number............. 596
Uniform Tire Quality Grading.............................................. 599
Tire pressure warning system Initializing............................................... 488
Installing tire pressure warning valves and transmitters ............... 488
Registering ID codes ...................... 489
Warning light ...................................... 538 Tires ............................................................487
Chains .......................................................391
Checking ............................................... 487
Glossary.................................................. 601
If you have a flat tire ..........................549
Inflation pressure................... 496, 589
Replacing ............................................... 549
Rotating tires ........................................ 487
Size .......................................................... 589
Snow tires .............................................. 392
Spare tire................................... 549, 589
Tire identification number .............596
Tire pressure warning system .... 488
Uniform Tire Quality Grading....599
Warning light .......................................538
Tools .......................................................... 550
Top tether strap ........................................ 74
Total load capacity............................... 582
Touchless power back door .............. 144
Towing Dinghy towing ....................................... 231
Emergency towing ...........................530
Trailer Sway Control ....................... 382
Trailer towing............................. 217, 230
TRAC (Traction Control)...................381
Traction Control (TRAC)...................381
Trailer Sway Control .......................... 382
Trailer towing ................................217, 230
T