2012 Lexus IS250C fuel pump

TABLE OF CONTENTSIndex
6
5-1. Essential informationEmergency flashers.................... 486
If your vehicle needs to be towed ....................................... 487
If you think something is wrong ......................................... 493
Fuel pump shut off system ........ 494
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... ........................................ 495
If a warning message is displayed ...................................... 504
If you have a flat tire (vehicles with standard
tires) ................................................. 518
If you have a flat tire (vehicles with run-flat
tires) ................................................ 527
If the engine will not start .......... 529
If the shift lever cannot be shifted from P......................... 531
If you lose your keys .................... 532
If the electronic key does not operate properly .............. 533
If the vehicle battery is discharged .................................. 538
If your vehicle overheats ........... 542 If the vehicle becomes
stuck................................................ 545
If the retractable hardtop does not close............................. 547
If your vehicle has to be stopped in an emergency ...... 557
6-1. Specifications Maintenance data (fuel, oil level, etc.).................... 560
Fuel information ............................ 578
Tire information............................ 582
6-2. Customization Customizable features.............. 595
6-3. Initialization Items to initialize .......................... 600
Reporting safety defects for U.S. owners........................... 602
Seat belt instructions for Canadian owners
(in French) ................................... 603
SRS airbag instructions for Canadian owners
(in French) ................................... 606
5When trouble arises
6Vehicle specifications
7For owners

When trouble arises5
485
5-1. Essential informationEmergency flashers............... 486
If your vehicle needs to be towed................................. 487
If you think something is wrong .................................. 493
Fuel pump shut off system.... 494 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds... ................................. 495
If a warning message is displayed................................ 504
If you have a flat tire (vehicles with standard
tires) ......................................... 518
If you have a flat tire (vehicles with run-flat
tires) ........................................ 527
If the engine will not start .... 529
If the shift lever cannot be shifted from P .................. 531
If you lose your keys .............. 532
If the electronic key does not operate properly.......... 533
If the vehicle battery is discharged......................... 538
If your vehicle overheats ..... 542
If the vehicle becomes stuck........................................ 545
If the retractable hardtop does not close ...................... 547
If your vehicle has to be stopped in an
emergency ............................ 557

494
5-1. Essential information
Fuel pump shut off system
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.
Follow the procedure below to rest art the engine after the system is
activated.
Turn the “ENGINE START STOP” switch to the ACCESSORY
mode or OFF.
Restart the engine.
STEP1
STEP2

578
6-1. 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 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.
Your vehicle must use only unleaded gasoline.
IS250C
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 octane rating lower than 91 may result in engine knocking. Per-
sistent knocking can lead to engine damage and should be corrected by
refueling with higher octane unleaded gasoline.
IS350C
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 octane rating lower than 91 may result in engine knocking and
significantly reduced perf ormance. 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.

580
6-1. Specifications
■Lexus does not recommend 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.
■Lexus does not recommend gasoline containing MMT
Some gasoline contains oc tane enhancing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus DOES NOT recommend the use of gasoline that contains MMT. If fuel con-
taining 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 maxi-
mum 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 contain-
ing more than 10% ethanol.
(15% ethanol)
(50% ethanol)
(85% ethanol)

622
Alphabetical index
Floor mat ................................................. 380
FluidBrake.......................................................... 431
Washer ................................................... 436
Fog lights Switch ....................................................... 185
Wattage.................................................. 577
Foot well lights .......................................359
Front fog lights Switch ....................................................... 185
Wattage.................................................. 577
Front passenger occupant classification system ............................119
Front passenger's seat belt
reminder light...................................... 497
Front seats Adjustment............................................... 55
Driving position memory.................... 61
Seat position memory ........................ 65
Front turn signal lights Switch ........................................................ 162
Wattage.................................................. 577 Fuel
Capacity ................................................ 563
Fuel gauge .............................................. 166
Fuel pump shut off system ............ 494
Information ........................................... 578
Refueling ................................................... 95
Fuel door ..................................................... 95
Fuel filler door ........................................... 95
Fuel pump shut off system................. 494
Fuses .......................................................... 458
Garage door opener .......................... 384
Gauges .......................................................166
Glove box ................................................ 362
Glove box light ...................................... 362
Hands-free system for mobile phone* ............................. 328
Hazard lights Switch ...................................................... 486
Head restraints Adjusting .................................................. 67
Headlight aim ......................................... 474
Headlight cleaner...................................194F
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