2010 Lexus ES350 engine

389
4-3. Do-it-yourself maintenance
4
Maintenance and care
ES350_U
Initializing the tire pressure warning system■ The tire pressure warning system mu st be initialized in the following
circumstances:
● When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
When the tire pressure warning system is initialized, the current tire
inflation pressure is set as the pressure benchmark.
■ How to initialize the tire pressure warning system
Park the vehicle in safe place and turn the “ENGINE START
STOP” switch OFF.
While the vehicle is moving, initialization is not performed.
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. (o P. 4 9 3 )
Make sure to adjust the tire pressure to the specified cold tire inflation
pressure level. The tire pressure warning system will operate based on
this pressure level.
Turn the “ENGINE START STOP” switch to IGNITION ON
mode.
Push and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly 3 times.
Wait for a few minutes with the IGNITION ON mode, and then
turn the “ENGINE START STOP” switch OFF.
STEP1
STEP2
STEP3
STEP4
STEP5

402
4-3. Do-it-yourself maintenance
ES350_U
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to main-
tain air conditioning efficiency.
■Replacement method
Turn the “ENGINE START STOP” switch OFF.
Open the glove box. Remove
the glove box cover.
Remove the filter cover.
Remove the filter.
Be sure that the correct side of
the filter faces up when installing
it.
STEP1
STEP2
STEP3
STEP4

406
4-3. Do-it-yourself maintenance
ES350_U
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown.
If this happens, check and replace the fuses as necessary.
Turn the “ENGINE START STOP” switch OFF.
Remove the engine compartment cover. (oP. 3 74 )
Open the fuse box cover.
Engine compartment
Push the tabs in and lift the lid
off.
Driver's side instrument panel Remove the lid.
After a system failure, see “Fuse layout and amperage ratings”
(o P. 409) for details about which fuse to check.STEP1
STEP2
STEP3
STEP4

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4-3. Do-it-yourself maintenance
4
Maintenance and care
ES350_U
Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1PSB30 APre-collision seat belt
2H-LP CLN30 A
3P-P / SEAT30 APower seat
4RR DEF50 ARear window defogger
5ABS NO.230 AAnti-lock brake system, vehicle stabil-
ity control system
6FAN MAIN50 AElectric cooling fans
7ABS NO.150 AAnti-lock brake system, vehicle stabil-
ity control system
8HTR50 AAir conditioning system
9RR FOG10 A
10ALT-CDS10 AAlternator condenser
11ST30 AStarting system

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4-3. Do-it-yourself maintenance
4
Maintenance and care
ES350_U
Headlight aim (vehicles with discharge headlights)
■Vertical movement adjusting bolts
Adjustment bolt A
Adjustment bolt B
■ Before checking the headlight aim
Make sure the vehicle has a full tank of gas and the area around
the headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.
■ Adjusting the headlight aim
Remove the engine compartment cover. ( oP. 3 74 )
Turn bolt A in either direction
using a Phillips-head screw-
driver.
Remember the turning direction
and the number of turns in mind.
STEP1
STEP2
STEP3
STEP4
STEP1
STEP2

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4-3. Do-it-yourself maintenance
ES350_U
Replacing light bulbs■ Headlight low beams (for vehicles without discharge bulbs) and
headlight high beams
Remove the engine compartment cover. ( oP. 3 74 )
Turn the bulb base counterclock-
wise.
Unplug the connector while
depressing the lock release.
STEP1
STEP2
STEP3

When trouble arises5
427
ES350_U
5-1. Essential informationEmergency 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

428
ES350_U
5-1. Essential information
Emergency flashers
NOTICE
■To prevent battery discharge
Do not leave the emergency flashers on longer than necessary when the engine is
not running.
Use the emergency flashers if the vehicle malfunctions or is involved in an
accident.
Without navigation systemPress the switch to flash all the
turn signal lights. To turn them
off, press the switch once again.
With navigation system Press the switch to flash all the
turn signal lights. To turn them
off, press the switch once again.