2012 Lexus ES350 stop start

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ES350_U
4-1. Maintenance and careCleaning and protecting the vehicle exterior.................. 358
Cleaning and protecting the vehicle interior ..................... 361
4-2. Maintenance Maintenance requirements ..... 364
General maintenance ................ 366
Emission inspection and maintenance (I/M)
programs ...................................... 369
4-3. Do-it-yourself maintenance Do-it-yourself service precautions .................................. 370
Hood.................................................. 374
Positioning a floor jack............... 375
Engine compartment.................. 377
Tires .................................................. 390
Tire inflation pressure................. 399
Wheels............................................. 403
Air conditioning filter................. 405
Electronic key battery ................ 407
Checking and replacing fuses ............................................... 409
Headlight aim ................................. 418
Light bulbs ....................................... 420 5-1. Essential information
Emergency flashers ................... 430
If your vehicle needs to be towed .............................................. 431
If you think something is wrong ............................................. 437
Fuel pump shut off system ....... 438
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 .......... 470
If the shift lever cannot be shifted from P .............................. 472
If you lose your keys .................... 473
If the electronic key does not operate properly ............... 474
If the vehicle battery is discharged ................................... 477
If your vehicle overheats .......... 480
If the vehicle becomes stuck............................................... 483
If your vehicle has to be stopped in an emergency ...... 484
4Maintenance and care5When trouble arises

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1-2. Opening, closing and locking the doors and trunk
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Before driving
ES350_U■
Effective range (areas within wh ich the electronic key is detected)
When locking or unlocking
the doors
The system can be operated
when the electronic key is
within about 2.3 ft. (70 cm) of
any of the outside door han-
dles. (Only the doors detect-
ing the key can be operated.)
When unlocking the trunk
The system can be operated
when the electronic key is
within about 2.3 ft. (70 cm) of
the trunk release button.
When starting the engine
or changing “ENGINE
START STOP” switch
modes
The system can be operated
when the electronic key is
inside the vehicle.

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1-2. Opening, closing and locking the doors and trunk
ES350_U
■Operation signals
Doors: A buzzer sounds and the emergency flashers flash to indicate that the doors
have been locked/unlocked. (Locked: Once; Unlocked: Twice)
Trunk: A buzzer sounds to indicate that the trunk has been unlocked.
Windows and standard moon roof: A buzzer sounds to indicate that the windows
and standard moon roof are operating.
■Door lock buzzer
If a door is not fully closed, a buzzer sounds for 10 seconds if an attempt to lock the
door is made. Fully close the door to stop the buzzer, and lock the vehicle once
more.
■Conditions affecting operation
The smart access system with push-button start uses weak radio waves. In the fol-
lowing situations, the communication between the electronic key and the vehicle
may be affected, preventing the smart access system with push-button start and
wireless remote control from operating properly:
(Ways of coping: →P. 4 74 )
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, gas station, radio station, large display,
airport or other facility that generates strong radio waves or electrical noise
●When carrying a portable radio, mobile phone, cordless phone or other wire-
less communication devices
●When the electronic key is in contact with, or is covered by the following metal-
lic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When multiple electronic keys are in the vicinity

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1-2. Opening, closing and locking the doors and trunk
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Before driving
ES350_U
●When carrying or using the electronic key together with the following devices
that emit radio waves
• Another vehicle's electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or metallic objects are attached to the rear
window
■Switching the door unlock function
It is possible to set which doors the entry function unlocks. Turn the “ENGINE START STOP” switch OFF.
When the indicator on the key surface is turned off, push and
hold , , or for approximately 5 seconds while pushing on the key.
The setting changes each time an operation is performed, as shown below. (When
changing the setting continuously, release the buttons, wait for at least 5 seconds,
and repeat step 2.)
To prevent unintended triggering of the alarm, unlock the doors using the wireless
remote control and open and close a door once after the settings have been
changed. (If a door is not opened within 60 seconds after is pressed, the
doors will be locked again and the alarm will automatically be set.)
In case that the alarm is triggered, immediately stop the alarm. (→ P. 8 3 )
STEP1
STEP2
Multi-information
displayUnlocking doorsBeep
Hold the driver's door handle
to unlock only the driver's
door
Exterior: Beeps three
times
Interior: Pings once
Hold the door handle except
a driver’s door handle to
unlock all doors
Hold any door handle to
unlock all doorsExterior: Beeps twice
Interior: Pings once

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1-2. Opening, closing and locking the doors and trunk
ES350_U
■Battery-saving function
In the following circumstances, the entry function is disabled in order to prevent the
vehicle and electronic key batteries from discharging.
●When the entry function has not been used for 2 weeks or more
●When the electronic key has been left within approximately 6 ft. (2 m) of the
vehicle for 10 minutes or more
The system will resume operation when...
●The vehicle is locked using the door handle lock switch.
●The vehicle is locked/unlocked using the wireless remote control function.
( → P. 4 0 )
●The vehicle is locked/unlocked using the mechanical key. ( →P. 4 74 )
■Electronic key battery depletion
●The standard battery life is 1 to 2 years.
●If the battery becomes low, an alarm will sound in the cabin when the engine
stops. ( →P. 4 5 8 )
●The battery becomes depleted even if the electronic key is not used because
the key always receives radio waves. If the smart access system with push-but-
ton start or the wireless remote control does not operate, or the detection area
becomes smaller, the battery may be depleted. Replace the battery when nec-
essary. ( →P. 4 0 7 )
●To avoid serious deterioration, do not leave the electronic key within 3 ft. (1 m) of
the following electrical appliances that produce a magnetic field.
•TVs
• Personal computers
• Mobile phones, cordless phones and battery chargers
• Recharging mobile phones or cordless phones
•Glass top ranges
•Table lamps

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1-2. Opening, closing and locking the doors and trunk
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Before driving
ES350_U
■To operate the system properly
Make sure to carry the electronic key when operating the system. Do not get the
electronic key too close to the vehicle when operating the system from the outside
of the vehicle.
Depending on the position and holding condition of the electronic key, the key may
not be detected correctly and the system may not operate properly. (The alarm may
go off accidentally, or the door lock prevention may not function.)
■Note for the entry function
●Even when the electronic key is within the effective range (detection areas), the
system may not operate properly in the following cases.
• The electronic key is too close to the window or outside door handle, near the
ground, or in a high place when the doors are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the rear bumper center when the trunk is unlocked.
• The electronic key is on the instrument panel, rear package tray or floor, or in
the glove box when the engine is started or “ENGINE START STOP” switch
modes are changed.
●Do not leave the electronic key on top of the instrument panel or near the door
pockets when exiting the vehicle. Depending on the radio wave reception con-
ditions, it may be detected by the antenna outside the cabin and the door will
become lockable from the outside, possibly trapping the electronic key inside
the vehicle.
●As long as the electronic key is within the effective range, the doors may be
locked or unlocked by anyone.
●Even if the electronic key is not inside the vehicle, it may be possible to start the
engine if the electronic key is near the window.
●The doors may unlock if a large amount of water splashes on the door handle,
such as in the rain or in a car wash. (The doors will automatically be locked after
approximately 60 seconds if the doors are not opened and closed.)
●Gripping the door handle when wearing a glove may not unlock the door.
●If the wireless remote control is used to lock the doors when the electronic key
is near the vehicle, there is a possibility that the door may not be unlocked by the
entry function. (Use the wireless re mote control to unlock the doors.)
●A sudden approach to the effective range or door handle may prevent the doors
from being unlocked. In this case, return the door handle to the original position
and check that the doors unlock before pulling the door handle again.

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1-2. Opening, closing and locking the doors and trunk
ES350_U
■When the vehicle is not driven for extended periods
To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2 m) of
the vehicle.
■Security feature
If a door is not opened within approximately 60 seconds after the vehicle is
unlocked, the anti-theft system automatically locks the vehicle again.
■Alarms and warning indicators
A combination of exterior and interior alarms as well as warnings displayed on the
multi-information display are used to prevent theft of the vehicle and unforeseeable
accidents resulting from erroneous operation. Take appropriate measures in
response to any warning indications on the multi-information display. (→P. 4 4 9 )
The following table describes circumstances and correction procedures when only
alarms are sounded.
AlarmSituationCorrection procedure
Exterior alarm
sounds once for 2
seconds
Tried to lock the doors using
the entry function while the
electronic key is still inside
the passenger compartmentRetrieve the electronic
key from the passenger
compartment and lock
the doors again.
Closed the trunk while the
electronic key is still inside
the trunk and all doors are
lockedRetrieve the electronic
key from the trunk and
close the trunk lid.
Exterior alarm
sounds once for 60
seconds
Tried to exit the vehicle with
the electronic key and lock
the doors without first turning
the “ENGINE START STOP”
switch OFFTu r n t h e “ E N G I N E
START STOP” switch
OFF and lock the doors
again.
Exterior alarm
sounds once for 10
secondsTried to lock the vehicle using
the entry function while a
door is openClose all of the doors
and lock the doors
again.

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1-2. Opening, closing and locking the doors and trunk
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Before driving
ES350_U
■If the smart access system with push-button start does not operate properly
●Locking and unlocking the doors: Use the mechanical key. (→P. 4 74 )
●Starting the engine: →P. 1 2 8
■When the electronic key battery is fully depleted
→P. 4 0 7
■Customization that can be configured at Lexus dealer
Settings (e.g. smart access system with push-button start) can be deactivated.
(Customizable features →P. 5 1 1 )
AlarmSituationCorrection procedure
Exterior alarm
sounds once for 3
seconds and inte-
rior alarm sounds
continuously
When the “ENGINE START
STOP” switch is in ACCES-
SORY or IGNITION ON
mode, an attempt was made
to open the door and exit the
vehicle, and the shift lever
was not in P.
Shift the shift lever to P.
Interior alarm pings
continuously
Tu r n e d t h e “ E N G I N E S TA R T
STOP” switch to ACCES-
SORY mode while the
driver's door is open
(Opened the driver's door
when the “ENGINE START
STOP” switch is in ACCES-
SORY mode.)
Tu r n t h e “ E N G I N E
START STOP” switch
OFF and close the
driver's door.
Tu r n e d t h e “ E N G I N E S TA R T
STOP” switch OFF while the
driver's door is open
Close the driver's door.