2008 Lexus GX470 fuel pump

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5-1. Essential information ............... 372If your vehicle needs to be towed.............................................. 372
If you think something is wrong ............................................. 377
Fuel pump shut off system ........ 378
Event data recorder .................... 379
5-2. Steps to take in an emergency ............................... 381
If a warning light turns on or a warning buzzer sounds... ........ 381
If you have a flat tire...................... 391
If the engine will not start .......... 402
If the shift lever cannot be shifted from P ............................. 403
If you lose your keys .................... 404
If the vehicle battery is discharged .................................. 405
If your vehicle overheats .......... 408
If the vehicle becomes stuck................................................. 410 6-1. Specifications............................. 412
Maintenance data (fuel, oil level, etc.)...................... 412
Fuel information............................. 421
Tire information ............................ 424
6-2. Customization .......................... 436 Customizable features .............. 436
6-3. Initialization ............................... 439 Items to initialize ........................... 439
Reporting safety defects for U.S. owners.................................. 442
Abbreviation list ....................... 444
Alphabetical index................... 446
What to do if............................... 454
5When trouble arises6Vehicle specifications
7For US owners
Index

360
4-3. Do-it-yourself maintenance
FuseAmpereCircuit
35A/F HEATER15A/F sensor
36TRN-HAZ15Turn signal lights
37ETCS10Electronic throttle control system
38EFI20
Multiport fuel injection system/
sequential multiport fuel injection
system
39D FR P/W20Po w e r w i n d o w
40DR/LCK25Po w e r d o o r l o c k
41TOW I NG30Towing converter
42RADIO NO.230Audio system, navigation system
43A/PUMP50
Multiport fuel injection system/
sequential multiport fuel injection
system

When trouble arises5
371
5-1. Essential information .... 372If your vehicle needs to be towed ...................................... 372
If you think something is wrong ....................................... 377
Fuel pump shut off system ... 378
Event data recorder.............. 379
5-2. Steps to take in an emergency .................... 381
If a warning light turns on or a warning buzzer sounds... ... 381
If you have a flat tire................ 391
If the engine will not start .... 402
If the shift lever cannot be shifted from P ....................... 403
If you lose your keys .............. 404
If the vehicle battery is discharged ............................ 405
If your vehicle overheats ..... 408
If the vehicle becomes stuck......................................... 410

378
5-1. Essential information
Fuel pump shut off system
■Follow the procedure below to restart the engine after the system is activated.Turn the engine switch to the “ACC” or “LOCK” position.
Restart the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked on to the 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

421
6-1. Specifications
6
Vehicle specifications
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 premium gasoline is not available
If this premium fuel is not available, you may use unleaded gasoline with an octane
rating as low as 87 (Research Octane Number 91).
■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 only unleaded gasoline.
Premium unleaded gasoline with an Octane Rating of 91 (Research
Octane Number 96) or higher required for optimum engine performance.
At minimum, the gasoline you use should meet the specifications of
ASTM D4814 in the U.S.A. and CGSB3.5-M93 in Canada.