fuel pump Lexus GS350 2009 Owner's Manual

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4-1. Maintenance and careCleaning and protecting the vehicle exterior................... 406
Cleaning and protecting the vehicle interior ................... 409
4-2. Maintenance Maintenance requirements ...... 412
General maintenance ................. 414
Emission inspection and maintenance (I/M)
programs ....................................... 417
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ................... 418
Hood................................................... 421
Positioning a floor jack............... 422
Engine compartment.................. 424
Tires .................................................. 438
Tire inflation pressure................. 448
Wheels.............................................. 453
Air conditioning filter.................. 455
Electronic key battery ............... 458
Checking and replacing fuses ........................... 460
Headlight aim ............................... 485
Light bulbs ...................................... 488 5-1. Essential information
Emergency flashers .................... 496
If your vehicle needs to be towed .................................. 497
If you think something is wrong ............................................ 503
Fuel pump shut off system ....... 504
Event data recorder................... 505
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... ......................................... 507
If a warning message is displayed........................................ 516
If you have a flat tire (Vehicles with standard tires) .................... 531
If you have a flat tire (Vehicles with run-flat tires) ....................... 541
If the engine will not start .......... 542
If the shift lever cannot be shifted from “P” .......................... 543
If you lose your keys .................... 544
If the electronic key does not operate properly ....................... 545
If the 12 volt battery is discharged .................................. 548
If your vehicle ov erheats ........... 552
If the vehicle becomes stuck............................................... 555
4Maintenance and care5When trouble arises
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4-3. Do-it-yourself maintenance
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Maintenance and care
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FuseAmpereCircuit
10IG210Ignition system, noise filter and ECT
ECU
11EFI NO.210
Fuel system, exhaust system, multi-
port fuel injection system/sequential
multiport fuel injection system, elec-
tronic engine control system, leak
detection pump
12H-LP R LWR15Headlight low beam (right)
13H-LP L LWR15Headlight low beam (left)
14F/ P M P25Fuel system
15EFI25
Multiport fuel injection system/
sequential multiport fuel injection
system, ECT ECU
16INJ25
Multiport fuel injection system/
sequential multiport fuel injection
system
17H-LP UPR15Headlight high beams
18HORN10Horns
19WA S H E R20Windshield wipers and washer
20FR TAIL10Parking lights, side marker light
21FR FOG15Front fog lights
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When trouble arises5
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5-1. Essential informationEmergency flashers............... 496
If your vehicle needs to be towed ............................ 497
If you think something is wrong ..................................... 503
Fuel pump shut off system .................................... 504
Event data recorder ............. 505 5-2. Steps to take
in an emergency
If a warning light turns on or a warning buzzer
sounds... ................................. 507
If a warning message is displayed................................. 516
If you have a flat tire (Vehicles with standard tires) ............. 531
If you have a flat tire (Vehicles with run-flat tires)................. 541
If the engine will not start .... 542
If the shift lever cannot be shifted from “P”.................... 543
If you lose your keys .............. 544
If the electronic key does not operate properly ................. 545
If the 12 volt battery is discharged ............................ 548
If your vehicle overheats ..... 552
If the vehicle becomes stuck........................................ 555
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5-1. Essential information
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April 27, 2009 10:48 am
Fuel pump shut off system
Follow the procedure below to restart the engine after the system is acti-
vated.
Turn the “ENGINE START STOP ” switch to the ACCESSORY
mode or OFF.
Restart the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked on to th e ground, the fuel system has been damaged
and is in need of repair. Do not restart the engine.
To minimize the risk of fuel leakage when the engine stalls or an airbag
inflates upon collision, the fuel pump shut off system stops supplying fuel to
the engine.
STEP1
STEP2
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6-1. Specifications
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Vehicle specifications
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April 27, 2009 10:48 am
Fuel information
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your Lexus has a fuel tank opening that only
accommodates the special nozzle on unleaded fuel pumps.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking for a short time while accelerating
or driving uphill. This is normal and there is no need for concern.
■Gasoline quality
In very few cases, driveability problems may be caused by the brand of gasoline you
are using. If driveability problems persist, try changing the brand of gasoline. If this
does not correct the problem, consult your Lexus dealer.
Your vehicle must use on ly unleaded gasoline.
Premium unleaded gasoline with an oc tane rating of 91 (Research Octane
Number 96) or higher required for optimum engine performance. If 91
octane cannot be obtained, you may us e unleaded gasoline with an octane
rating as low as 87 (Research Octane Number 91). Use of unleaded gaso-
line with an significantly reduced performance. Persistent knocking can
lead to engine damage and should be corrected by refueling with higher
octane unleaded gasoline.
At minimum, the gasoline you us e should meet the specifications of
ASTM D4814 in the U.S.A. an d CGSB3.5-M93 in Canada.
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