fuel pump Lexus GX460 2012 Owner's Manual

TABLE OF CONTENTSIndex
6
GX460_U.S.A. (OM60J00U)
5-1. Essential informationEmergency flashers..................... 676
If your vehicle needs to be towed .................................. 677
If you think something is wrong ............................................ 683
Fuel pump shut off system ....... 684
Event data recorder ................... 685
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... ........................................ 688
If a warning message is displayed ...................................... 700
If you have a flat tire...................... 721
If the engine will not start .......... 735
If the shift lever cannot be shifted from P .............................. 737
If you lose your keys .................... 738
If the electronic key does not operate properly ............... 739
If the vehicle battery is discharged .................................... 741
If your vehicle overheats ........... 744
If the vehicle becomes stuck................................................ 747
If your vehicle has to be stopped in an emergency ........................ 749 6-1. Specifications
Maintenance data (fuel, oil level, etc.)..................... 752
Fuel information ............................ 764
Tire information............................. 768
6-2. Customization Customizable features............... 782
6-3. Initialization Items to initialize .......................... 802
Reporting safety defects for U.S. owners.......................... 804
Seat belt instructions for Canadian owners
(in French) ................................... 805
SRS airbag instructions for Canadian owners
(in French) ................................... 807
5When trouble arises6Vehicle specifications
7For owners

112
1-5. Refueling
GX460_U.S.A. (OM60J00U)
■Use of ethanol blended gasoline in a gasoline engine
●Make sure that the ethanol blended gasoline to be used has a suitable Research
Octane Number. (→P. 766)
●Use only gasoline containing a maximum
of 10 % ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 10 % etha-
nol, including from any pump labeled E15,
E30, E50, E85 (which are only some
examples of fuel containing more than
10 % ethanol).
DO NOT use gasoline con-
taining more than 10 % etha-
nol.
(15 % ethanol)
(50 % ethanol)
(85 % ethanol)

651
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
6SUB BATT30 ATo w i n g
7IG220 AInjector, ignition, meter
8HORN10 AHorn
9EFI25 AEFI ECU, A/F heater relay, fuel pump
relay, EFI NO.2
10A/F20 AA/F SSR
11FUEL OPN 10 AFuel lid opener
12S/HTR RR20 ARear seat heater
13FOLD SEAT LH30 AFolding seat (left)
14FOLD SEAT RH30 AFolding seat (right)
15TOW I N G TA I L30 ATo w i n g
16A/C COMP10 AAir conditioning system
17STRG HTR 10 ASteering heater
18CDS FAN20 ACondenser fan
19STOP10 A
Stop lights, high mount stop light, stop
light switch, VSC ECU, towing, Smart
access system with push button start
20AIR SUS NO.27. 5 AAIR SUS ECU
21H-LP RH-HI15 AHeadlight high beam (right)
22H-LP LH-HI15 AHeadlight high beam (left)
FuseAmpereCircuit

When trouble arises5
675
GX460_U.S.A. (OM60J00U)
5-1. Essential informationEmergency flashers................ 676
If your vehicle needs to be towed ............................ 677
If you think something is wrong ..................................... 683
Fuel pump shut off system.... 684
Event data recorder .............. 685 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds..................................... 688
If a warning message is displayed................................ 700
If you have a flat tire................. 721
If the engine will not start .... 735
If the shift lever cannot be shifted from P ........................ 737
If you lose your keys .............. 738
If the electronic key does not operate properly.......... 739
If the vehicle battery is discharged .............................. 741
If your vehicle overheats ...... 744
If the vehicle becomes stuck......................................... 747
If your vehicle has to be stopped in an emergency ................... 749

684
5-1. Essential information
GX460_U.S.A. (OM60J00U)
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 ACCESSORY mode
or turn it off.
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

764
6-1. Specifications
GX460_U.S.A. (OM60J00U)
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.
You must only use unleaded gasoline in your vehicle.
Select premium unleaded gasoline with an octane rating of 91 (Research
Octane Number 96) or higher required for optimum engine performance.
If 91 octane cannot be obtained, you may use unleaded gasoline with an
octane rating as low as 87 (Research Octane Number 91). Use of
unleaded gasoline with an octane rating lower than 91 may result in engine
knocking. Persistent knocking can lead to engine damage and should be
corrected by refueling with higher octane unleaded gasoline.
At minimum, the gasoline you use should meet the specifications of
ASTM D4814 in the U.S.A. and CGSB3.5-M93 in Canada.

766
6-1. Specifications
GX460_U.S.A. (OM60J00U)
■Non-recommendation of the use of blended gasoline
●If you use gasohol in your Lexus, be sure that it has an octane rating 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 (Methylcy clo-
pentadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasoli ne that contains MMT. If fuel contain-
ing MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the inst rument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.
●Use only gasoline containing a maximum
of 10 % ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 10 % etha-
nol, including from any pump labeled E15,
E30, E50, E85 (which are only some
examples of fuel containing more than
10 % ethanol).
DO NOT use gasoline con-
taining more than 10 % etha-
nol.
(15 % ethanol)
(50 % ethanol)
(85 % ethanol)

824
Alphabetical index
GX460_U.S.A. (OM60J00U)
Floor mats ................................................556
FluidBrake..........................................................619
Power steering...................................... 621
Washer ................................................... 627
Fog lights
Replacing light bulbs........................666
Switch ...................................................... 233
Wattage.................................................. 763
Footwell light............................................ 519
Four-wheel drive system ................... 322
Front passenger occupant
classification system .......................... 139
Front passenger’s seat belt
reminder light...................................... 692
Front seats
Adjustment............................................... 63
Driving position memory.................. 78
Front side marker light Replacing light bulbs........................ 667
Wattage.................................................. 763
Front turn signal lights
Replacing light bulbs....................... 668
Switch ........................................................ 192
Wattage.................................................. 763
Fuel
Capacity................................................. 754
Fuel gauge ............................................. 195
Fuel pump shut off system ............684
Gas station information..................836
Information............................................ 764
Refueling ................................................. 109 Fuel door ................................................... 109
Fuel filler door ......................................... 109
Fuel pump shut off system................. 684
Fuses .......................................................... 647
Garage door opener .......................... 567
Gas station information .....................836
Gauges ...................................................... 195
Glove box ................................................ 525
Glove box light ...................................... 525
Hands-free system for cellular
phones
*................................................485
Hazard lights
Switch ...................................................... 676
Head restraints
Adjustment ...............................................82
Headlights cleaner............................... 245
Headlights Adaptive front lighting
system...................................................223
Discharge headlights
precautions ........................................674
Replacing light bulbs ....................... 663
Switch ........................................................ 219
Wattage ..................................................763
Heaters Seat heaters ........................................... 551
Side mirror................................................ 411
Heated steering ................................. 549
Height control Rear height control air
suspension .......................................... 316
F
G
H