2019 LEXUS RX450H fuel type

17Pictorial index
RX450h_RX450hL_U
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 267
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 390
To prevent freezing (windshield wiper de-icer)
*. . . . . . . . . . . . . . . . . . . . . . . . P. 516
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 582
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 274
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 276
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 712
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 611
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 717
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 39 0
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . . . P. 611
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 673
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 595
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 595
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 713
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 702
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 2 52
Parking lights/daytime running lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
Front side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
Fog lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 266
Cornering lights
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 259
Stop/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 246
Rear side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
4
5
6
7
Light bulbs of the exte rior lights for driving
(Replacing method: P. 637, Watts: P. 719)
*: If equipped
8
9
10
11
12
13
14
15
16
17

274
RX450h_RX450hL_U4-4. Refueling
●Close all the doors and windows,
and turn the power switch off.
●Confirm the type of fuel.
■Fuel types
P. 720
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehi cle has a fuel tank opening that only accom-
modates the specia l nozzle on unleaded fuel pumps.
Opening the fuel tank cap
The fuel tank of your vehicle has a special structure, which requires a reduc-
tion in fuel tank pressure before refu eling. After the opener switch has been
pressed, it will take several seconds un til the vehicle is ready for refueling.
Before refueling the vehicle

6908-2. Steps to take in an emergency
RX450h_RX450hL_U
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. ( P. 692)
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●There may be a malfunction in the immobilizer system. ( P. 83)
●There may be a malfunction in the steering lock system.
●The hybrid system may be malfunctioni ng due to an electrical problem such
as electronic key battery depletion or a blown fuse. However, depending on
the type of malfunction, an interim meas ure is available to start the hybrid sys-
tem. ( P. 691)
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( P. 695)
●The 12-volt battery terminal connections may be loose or corroded.
( P. 691)
If the hybrid system will not start
Reasons for the hybrid system not star ting vary depending on the situation.
Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct starting proce-
dure is being followed. ( P. 239)
The interior lights and headlights are d im, or the horn does not sound or
sounds at a low volume.

7129-1. Specifications
RX450h_RX450hL_U
■Engine number
The engine number is stamped on
the engine block as shown.
Front
Rear
Engine
Model3.5 L 6-cylinder (2GR-FXS)
Type6-cylinder V type, 4-cycle, gasoline
Bore and stroke3.70  3.27 in. (94.0  83.0 mm)
Displacement210.9 cu. in. (3456 cm3)
Valve clearance (engine cold)Automatic adjustment
Fuel
Fuel typeUnleaded gasoline only
Octane Rating91 (Research Octane Number 96) or higher
Fuel tank capacity (Reference)17.2 gal. (65 L, 14.3 Imp. gal.)
Electric motor (traction motor)
TypePermanent magnet synchronous motor
Maximum output123 kW
Maximum torque247 ft•lbf (335 N•m, 34.2 kgf•m)
TypePermanent magnet synchronous motor
Maximum output50 kW
Maximum torque103 ft•lbf (139 N•m, 14.2 kgf•m)

7229-1. Specifications
RX450h_RX450hL_U
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper fuels are used, the engine will be damaged.
●Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic converters
causing the emission control system to malfunction.
●Do not use gasohol other than the type previously stated.
Other gasohol may cause fuel system damage or vehicle performance problems.
●Using unleaded gasoline with an octane numb er or rating lower than the level previ-
ously stated may cause pe rsistent heavy knocking.
At worst, this may lead to engine da mage and will void the vehicle warranty.
■Fuel-related poor driveability
If poor driveability (poor hot starting, vaporization, engine knocking, etc.) is encoun-
tered after using a different type of fuel, discontinue the use of that type of fuel.
■When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

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

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

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