2020 LEXUS RX450H fuel pump

TABLE OF CONTENTS6
RX350/RX350L_U
7-1. Maintenance and careCleaning and protecting the vehicle exterior ................ 576
Cleaning and protecting the vehicle interior................... 581
7-2. Maintenance Maintenance requirements ............................ 584
General mainte nance.............. 586
Emission inspection and maintenance (I/M)
programs....................................589
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions................................590
Hood ............................................... 592
Positioning a floor jack ............ 593
Engine compartment ............... 594
Tires ................................................. 604
Tire inflation pressure ................613
Wheels .............................................616
Air conditioning filter ................ 618
Windshield wiper inserts ..........621
Electronic key battery.............. 623
Checking and replacing fuses.............................................. 625
Headlight aim .............................. 628
Light bulbs .................................... 630 8-1. Essential information
Emergency flashers .................. 644
If your vehicle has to be stopped in
an emergency .......................... 645
8-2. Steps to take in an emergency
If your vehicle needs to be towed ............................... 646
If you think something is wrong........................................... 652
Fuel pump shut off system...... 653
If a warning light turns on or a warning buzzer
sounds ......................................... 654
If a warning message is displayed ......................................661
If you have a flat tire .................. 666
If the engine will not start ........ 682
If the electronic key does not operate properly ............. 684
If the vehicle battery is discharged................................. 687
If your vehicle overheats......... 692
If the vehicle becomes stuck ............................................. 695
7Maintenance and care8When trouble arises

269
4
Driving
RX350/RX350L_U4-4. Refueling
●Close all the doors and windows,
and turn the engine switch off.
●Confirm the type of fuel.
■Fuel types
P. 706
■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
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle

643
8When trouble arises
RX350/RX350L_U
8-1. Essential informationEmergency flashers .................. 644
If your vehicle has to be stopped in
an emergency .......................... 645
8-2. Steps to take in an emergency
If your vehicle needs to be towed................................ 646
If you think something is wrong ........................................... 652
Fuel pump shut off system .......................................... 653
If a warning light turns on or a warning buzzer
sounds.......................................... 654
If a warning message is displayed...................................... 661
If you have a flat tire .................. 666
If the engine will not start ........ 682
If the electronic key does not operate properly .............684
If the vehicle battery is discharged ................................. 687
If your vehicle overheats ......... 692
If the vehicle becomes stuck ............................................. 695

6538-2. Steps to take in an emergency
8
When trouble arises
RX350/RX350L_U
Follow the procedure below to restart the engine after the system is activated.Turn the engine switch to ACCESSORY mode or turn it off.
Restart the engine.
Fuel pump shut off system
To minimize the risk of fuel leakage when the engine stalls or when an airbag
inflates upon collision, the fuel pump shut off system stops the supply of fuel to
the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been damaged and
is in need of repair. Do not restart the engine.
1
2

7079-1. Specifications
9
Vehicle specifications
RX350/RX350L_U
■Recommendation of the use of low emissions gasoline
Gasolines containing oxygenates such as ethers and ethanol, as well as reformulated
gasolines, are available in some cities. Thes e fuels are typically acceptable for use, pro-
viding they meet other fuel requirements.
Lexus recommends these fuels, since the form ulations allow for reduced vehicle emis-
sions.
■Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure that it has an octane ra ting no lower than 87.
●Lexus does not recommend the use of gasoline containing methanol.
■Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT
(Methylcyclopentadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasoline that contains MMT. If fuel containing
MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the instru ment cluster may come on. If this happens,
contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking for a short time while accelerating or driv-
ing uphill. This is normal and there is no need for concern.
●Use only gasoline containing up to 15% etha-
nol.
DO NOT use any flex-fuel or gasoline that
could contain more than 15% ethanol, includ-
ing from any pump labeled E30, E50, E85
(which are only some examples of fuel con-
taining more than 15% ethanol).DO NOT use gasoline
containing more than
15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)