2010 Lexus ES350 fuel pressure

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ES350_U
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4-1. Maintenance and careCleaning and protecting the vehicle exterior................... 354
Cleaning and protecting the vehicle interior .................... 357
4-2. Maintenance Maintenance requirements .... 360
General maintenance ................ 362
Emission inspection and maintenance (I/M)
programs ...................................... 365
4-3. Do-it-yourself maintenance Do-it-yourself service precautions .................................. 366
Hood.................................................. 370
Positioning a floor jack................ 371
Engine compartment.................. 373
Tires ................................................... 387
Tire inflation pressure................. 396
Wheels............................................. 400
Air conditioning filter.................. 402
Electronic key battery ................ 404
Checking and replacing fuses ................................................ 406
Headlight aim ................................. 415
Light bulbs ........................................ 417 5-1. Essential information
Emergency flashers .................... 428
If your vehicle needs to be towed ....................................... 429
If you think something is wrong ......................................... 435
Fuel pump shut off system ........ 436
Event data recorder.................... 437
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... ........................................ 439
If a warning message is displayed....................................... 449
If you have a flat tire...................... 461
If the engine will not start ............ 471
If the shift lever cannot be shifted from P .............................. 473
If you lose your keys .................... 474
If the electronic key does not operate properly ............... 475
If the vehicle battery is discharged ................................... 477
If your vehicle overheats .......... 480
If the vehicle becomes stuck............................................... 483
4Maintenance and care5When trouble arises

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Tires
●Rotation
● Replacement
● Inflation pressure
P. 387
P. 461
P. 493
Tail lights P. 145
Side marker lights P. 145
Trunk P. 45
Rear window defogger P. 207
Doors P. 41
Fuel filler door P. 75
Turn signal lights P. 131

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4-1. Maintenance and care
Cleaning and protecting the vehicle exterior
■Automatic car washes
●Fold the mirrors back before washing the vehicle.
●Brushes used in automatic car washes may scratch the vehicle surface and
harm your vehicle’s paint.
■High pressure car washes
●Do not allow the nozzles of the car wash to come within close proximity of the
windows.
●Before car wash, check that the fuel filler door on your vehicle is closed prop-
e r l y.
■Touch-up paint (if equipped)
Touch-up paint may be used to cover small chips or scratches.
Apply the paint soon after the damage occurs or corrosion may set in. To apply the
touch-up paint so it is hardly noticeable the trick is to apply it only to the bare spots.
Apply only the smallest amount possible and do not paint the surface around the
scratch or chip.
Perform the following to protect the vehicle and maintain it in prime condi-
tion.
● Working from top to bottom, liberally apply water to the vehicle
body, wheel wells and underside of the vehicle to remove any dirt
and dust.
Wash the vehicle body using a sponge or soft cloth, such as a
chamois.
● For hard-to-remove marks, use car wash soap and rinse thor-
oughly with water.
● Wipe away any water.
● Wax the vehicle when the waterproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the vehicle
body is cool.

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4-3. Do-it-yourself maintenance
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■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 refilling, 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 and 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 misleading. In addition, tire inflation pressures
that are even just a few pounds off can degrade ride and handling.
●Do not bleed or reduce tire inflation pressure after driving. It is normal for the
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.

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When trouble arises
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5-2. Steps to take in an emergency
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■First check when the malfunction indicator lamp comes on while driving
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 lamp will go off after taking several driving trips.
If the lamp does not go off even after several trips, contact your Lexus dealer as
soon as possible.
■SRS warning light
This warning light system monitors the following:
• The airbag sensor assembly
• The front airbag sensors
• The side and curtain shield airbag sensor assemblies
• The curtain shield airbag sensor assemblies
• The driver’s seat position sensor
• The driver’s seat belt buckle switch
• Occupant detection system (ECU and sensors)
• “AIR BAG ON” and “AIR BAG OFF” indicator lights
• Front passenger’s seat belt buckle switch
• The seat belt pretensioner assemblies
• The inflators
• The interconnecting wiring and power sources
■Front passenger detection sensor and passenger seat belt reminder
If luggage or other load is placed on the front passenger seat, depending on its
weight, the reminder light may flash and buzzer may sound.
■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 does not turn off the tire pressure warning light.
■The tire pressure warning light may turn on due to natural causes
The tire pressure warning light may turn on due to natural causes such as natural air
leaks or tire inflation pressure changes caused by temperature. In this case, adjust-
ing the tire inflation pressure will turn off the warning light (after a few minutes).

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When trouble arises
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5-2. Steps to take in an emergency
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CAUTION
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold
and inflated to the inflation pressure recommended by the vehicle manufacturer on
the vehicle placard or tire inflation pressure 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 vehicle 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 driver'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 the 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 replacement or alternate tires or wheels on the
vehicle that prevent the TPMS (tire pressure 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.

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Alphabetical index
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TiresChains ...................................................... 186
Checking ............................................... 387
If you have a flat tire............................461
Inflation pressure................................ 396
Inflation pressure sensor............... 388
Information............................................ 499
Replacing.................................................461
Rotating tires ........................................ 387
Size ........................................................... 493
Snow tires ............................................... 188
Spare tire..................................................461
Tools ............................................................ 461
Total load capacity ................................ 183
Towing Dinghy towing ....................................... 197
Emergency towing ........................... 429
Trailer towing........................................ 190
TRAC............................................................ 171
Traction control ........................................ 171
Trip meter ................................................. 134
Trunk Extending a space............................... 331
Opener ...................................................... 45
Trunk light Trunk light................................................. 46
Wattage.................................................. 495
Turn signal lights
Replacing light bulbs.......................... 417
Switch ..........................................................131
Wattage.................................................. 495 Vanity lights
Vanity lights............................................ 319
Wattage ................................................. 495
Vanity mirrors ..........................................319
Vehicle identification number ......... 487
Vehicle stability control ........................ 171
Ventilators ............................................... 326
Voice command switch ..................... 279
VSC .............................................................. 171
Warning buzzers Brake system....................................... 439
Downshifting.......................................... 130
Open door ............................................ 441
Seat belt reminder .............................. 441
Warning lights
Anti-lock brake system .................. 440
Brake assist system .......................... 440
Brake system....................................... 439
Charging system ............................... 440
Low fuel level......................................... 441
Low tire pressure warning light.......................................................... 441
Malfunction indicator lamp .......... 440
Master warning light.......................... 441
Open door ............................................. 441
Pre-collision system......................... 440
Pretensioners ...................................... 440
Rear light failure warning light ...... 441
Seat belt reminder light .................... 441
SRS airbags.......................................... 440V
W

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What to do if...
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■Warning lights
The warning light or indicator
light comes onP. 4 3 9If a warning light turns on or a warning
buzzer sounds...
or or
P. 4 3 9P. 440
P. 4 4 1
or
P. 440
or
P. 4 4 1P. 4 4 1
P. 440P. 4 4 1
P. 4 4 1P. 440
P. 440P. 4 4 1
Brake system warning lightMalfunction indicator lamp
“ABS” warning lightDriver’s seat belt reminder
light
Front passenger’s seat belt
reminder light
Low fuel level warning light
SRS warning lightMaster warning light
Open door warning lightPre-collision system warn-
ing light
Charging system warning
lightTire pressure warning light