fuel pressure lexus LFA 2012 Technical Information / LEXUS 2012 LFA OWNERS MANUAL (OM77006U)

TABLE OF CONTENTSIndex
4
4-3. Do-it-yourself maintenanceDo-it-yourself service precautions .................................. 247
Hood................................................. 250
Positioning a floor jack............... 253
Engine compartment.................. 256
Adding washer fluid .................... 264
Battery .............................................. 265
Tires ................................................... 270
Tire inflation pressure ................. 277
Wheels............................................... 281
Air conditioning filter ................. 283
Wireless remote control battery ........................................... 285
Checking and replacing fuses ................................................ 287
Light bulbs ....................................... 299 5-1. Essential information
Emergency flashers.................... 302
If your vehicle needs to be towed ...................................... 303
If you think something is wrong ............................................ 308
Fuel pump shut off system ....... 309
Event data recorder ..................... 310
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds... ......................................... 312
If a warning message is displayed ....................................... 322
If you have a flat tire..................... 332
If the engine will not start .......... 343
If you lose your keys/ wireless remote control
transmitter .................................... 344
If the parking brake cannot be released .................................. 345
If the vehicle battery is discharged .................................. 348
If your vehicle ov erheats ............ 351
If the vehicle becomes stuck................................................ 354
If your vehicle has to be stopped in an
emergency .................................. 355
5When trouble arises

7
Stop/tail lights P. 158
Rear hatch
Rear window defoggerP. 29
P. 201
Rear turn signal lights
P. 112
Doors P. 25
Fuel filler door P. 49
Rear view monitor system 
P. 163
Active rear wing P. 171
: If equipped
Rear side marker lights
P. 158
Tires
●Checking
● Puncture repair kit
● Inflation pressure
● Information
P. 270
P. 332
P. 366
P. 371

117
2-2. Instrument cluster
2
When driving
Speedometer
Tachometer
Gear indicator (P. 1 0 4 )
Driving mode indicator ( P. 1 0 4 )
Trip information display
Displays trip meter, fuel economy and other driving information ( P. 118)
Odometer
Engine oil temperature gauge
Displays the engine oil temperature. If the engine oil temperature becomes
284 F (140 C) or higher, a buzzer will sound and this display will flash.
( P. 313)
Clock ( P. 1 4 8 )
Engine oil pressure gauge
Displays the pressure of the engine oil in the engine. If the oil pressure drops,
a buzzer will sound and a warning message will be displayed. ( P. 3 2 4 )
Fuel gauge
Displays remaining fuel quantity an d reminds the driver to refuel. (P. 3 1 5 )
Outside temperature display
Engine coolant temperature gauge
Displays engine coolant temperature. If the engine coolant temperature
exceeds 244 F (118 C), a buzzer will sound and this display will flash.
( P. 313)
Menu
Allows driver to set various functions and check vehicle status. ( P. 1 2 4 )
Displays warning messages in case of a malfunction. ( P. 3 2 2 )

124
2-2. Instrument cluster
Using the menu
The meter display settings and vehicle status can be checked using the con-
trol pad located on the steer ing wheel and the menu display.
■Menu structure
Menu itemFunction
Speed Ind ( P. 1 2 6 ) Changes color when the vehicle
reaches a set speed.
Rev Ind ( P. 1 2 9 ) A ring-shaped indicat
or appears in the
tachometer when the engine reaches a
set speed.
Status
(  P. 132) Trip Info Indicates the current fuel consumption,
average fuel consumption, average
vehicle speed, and driving range.
Oil Level Shows the amount of engine oil in the oil
tank.
Oil Mainte-
nance Indicates engine oil replacement timing.
Tire Pressure Shows inflation pressure of each tire.
Lap Timer ( P. 142) Measures and shows lap times.

229
4-1. Maintenance and care
4
Maintenance and care
■Automatic car washes
Do not use automatic car washes as they may scratch the vehicle body and damage
the paint.
■High pressure car washes
●Do not allow the nozzles of the car wash to come within close proximity of the
windows or rear hatch.
●Before car wash, check that the fuel filler door on your vehicle is closed prop-
erly.
■Aluminum wheels
●Remove any dirt immediately by using a neutral detergent. Do not use hard
brushes or abrasive cleaners. Do not use strong or harsh chemical cleaners.
Use the same mild detergent and wax as used on the paint.
●Do not use detergent on the wheels when they are hot, for example after driving
for long distance in the hot weather.
●Wash detergent from the wheels immediately after use.
■Cleaning the rear quarter glass
As the rear quarter glasses are made of polycarbonate, follow the procedure
below.
Remove dust and dirt on the surface with plenty of water.
Clean the surface using a mild soap or neutral detergent.
Rinse it with adequate water.
■Cleaner precaution
Do not use abrasive cleaners.
■Outside rear view mirror rain-clearing coating
Observe the following precautions in order to retain the rain-clearing properties of
the mirrors:
●Clean the mirrors using a car shampoo or glass cleaner that does not contain
silicone or an abrasive compound, and rinse thoroughly with water.
●Allow the mirrors to be exposed to direct sunlight for 1 to 2 days.
STEP1
STEP2
STEP3

279
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Tire inflation pressure check interval
You should check tire inflation pressure every two weeks, or at least once a month.
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel efficiency
●Reduced driving comfort and tire life
●Reduced safety
●Damage to the drive train
If a tire needs frequent inflating, have it checked by your Lexus dealer.
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
●Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven for
more than 1 mile or 1.5 km, you will get an accurate cold tire inflation pressure
reading.
●Always use a tire pressure gauge.
The appearance of the tire can be mislea ding. In addition, tire inflation pressure
that is even just a few pounds off can affect ride quality and handling.
●Do not reduce tire inflation pressure after driving. It is normal for tire inflation
pressure to be higher after driving.
●Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is bal-
anced.
■Tire inflation pressure display
Tire inflation pressure can be checked on the meter's “Tire Pressure” display.
(  P. 1 3 2 )

5
When trouble arises
317
5-2. Steps to take in an emergency
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon
as possible.
■Electric power steering system warning light
When the battery is low or when the voltage drops temporarily, the electric power
steering system warnin g light may come on.
■Passenger detection sensor and passenger seat belt reminder
●If luggage is placed on the passenger seat, the passenger detection sensor may
cause the warning light to flash even if a passenger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not turn off the tire pressure warning light. After
the tire inflation pressure is adjusted, it may take a few minutes for the tire pressure
warning light to go off.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural
air leaks or tire inflation pressure changes caused by temperature. In this case,
adjusting the tire inflation pressure will turn off the warning light (after a few min-
utes).

320
5-2. Steps to take in an emergency
CAUTION
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold
and inflated to the inflation pressure re commended by the vehicle manufacturer on
the vehicle placard or tire inflation pressu re label (tire and load information label).
(If your vehicle has tires of a different size than the size indicated on the vehicle
placard or tire inflation pressure label [tire and load information label], you should
determine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicl e has been equipped with a tire pressure
monitoring system (TPMS-tire pressure warning system) that illuminates a low tire
pressure telltale (tire pressure warning light) when one or more of your tires is sig-
nificantly under-inflated. Accordingly, when the low tire pressure telltale (tire pres-
sure warning light) illuminates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling
and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for
proper tire maintenance, and it is the driv er's responsibility to maintain correct tire
pressure, even if under-inflation has not reached the level to trigger illumination of
the TPMS low tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system)
malfunction indicator to indicate when th e system is not operating properly. The
TPMS (tire pressure warning system) malfunction indicator is combined with the
low tire pressure telltale (tire pressure warning light). When the system detects a
malfunction, the telltale will flash for approximately one minute and then remain
continuously illuminated. This sequence will continue upon subsequent vehicle
start-ups as long as the malfunction exists . When the malfunction indicator is illumi-
nated, the system may not be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a variety of rea-
sons, including the installation of replacem ent or alternate tires or wheels on the
vehicle that prevent the TPMS (tire pres sure warning system) from functioning
properly. Always check the TPMS (tire pressure warning system) malfunction tell-
tale after replacing one or more tires or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow the TPMS (tire pressure warning
system) to continue to function properly.

377
6-1. Specifications
6
Vehicle specifications
Glossary of tire terminology
Tire related termMeaning
Accessory weight The combined weight (in excess of those standard
items which may be replaced) of automatic transmis-
sion, power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Cold tire inflation pres-
sure Tire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Curb weight The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipp
ed, air conditioning and
additional weight optional engine
Maximum inflation pres-
sure The maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Maximum loaded vehicle
weight The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight 150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows
Production options
weight The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim

401
Abbreviation list
SRSSupplemental Restraint System
TIN Tire Identification Number
TPMS Tire Pressure Warning System
TRAC Traction Control
TWI Treadwear indicators
VDIM Vehicle Dynamics Integrated Management
VIN Vehicle Identification Number
VSC Vehicle Stability Control
WWFC World-Wide Fuel Charter
ABBREVIATIONSMEANING