2010 Lexus ES350 key battery

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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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ES350_U
1-1. Key information
Keys
Using the mechanical keyTake out the mechanical key.
After using the mechanical key,
store it in the electronic key. Carry
the mechanical key together with
the electronic key. If the electronic
key battery is depleted or the entry
function does not operate properly,
you will need the mechanical key.
The following keys are provided with the vehicle.
Electronic keys
• Operating the smart accesssystem with push-button start
(o P. 2 6 )
• Operating the wireless remote control function
(o P. 3 8 )
Mechanical keys
Key number plate
■When required to leave a key to the vehicle with a parking attendant
Turn the trunk opener main switch OFF and lock the glove box and the armrest
door as circumstances demand. ( oP. 45, 312, 331)
Remove the mechanical key for your own use and provide the attendant with the
electronic key only.
■Key number plate
Keep the plate in a safe place such as your wallet, not in the vehicle. In the event that
a mechanical key is lost, a new key can be made at your Lexus dealer using the key
number plate. ( oP. 4 74 )

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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: oP. 475)
●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
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.
( o P. 3 8 )
●The vehicle is locked/unlocked using the mechanical key. ( oP. 475)
■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. ( oP. 4 5 8 )
●The battery becomes depleted even if the electronic key is not used because
the key always transmits 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. ( oP. 404)
●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.
• T Vs
• Personal computers
• Mobile phones, cordless phones and battery chargers
• Recharging mobile phones or cordless phones
• Glass top ranges
• Table lamps
■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.

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1-2. Opening, closing and locking the doors and trunk
1
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. (oP. 475)
●Starting the engine: oP. 1 2 4
■When the electronic key battery is fully depleted
oP. 4 0 4
■Customization that can be configured at Lexus dealer
Settings (e.g. smart access system with push-button start) can be deactivated.
(Customizable features oP. 5 1 1 )
■Certification for the smart access system with push-button start
For vehicles sold in the USA
FCC ID: NI4TMLF-3
FCC ID: HYQ14AAB
FCC ID: HYQ13BZH
FCC ID: HYQ14ABK
FCC ID: HYQ13BZW
AlarmSituationCorrection procedure
Interior alarm pings
continuously
Turned the “ENGINE START
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.)
Turn the “ENGINE
START STOP” switch
OFF and close the
driver's door.
Turned the “ENGINE START
STOP” switch OFF while the
driver's door is open
Close the driver's door.

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1-2. Opening, closing and locking the doors and trunk
ES350_U
Wireless remote control
■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.
■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.
■Electronic key battery depletion
o P. 3 2
■Security feature
oP. 3 3
The wireless remote control can be used to lock and unlock the vehicle and
the trunk from outside the vehicle.
Locks all doors
Unlocks all doors
Pressing the button unlocks the
driver’s door. Pressing the but-
ton again within 3 seconds
unlocks the other doors.
Opens the windows and
standard moon roof (push
and hold)
*
Unlocks the trunk
(push and hold)
Sounds alarm
(push and hold) ( oP. 80)
*: This setting must be customized
at your Lexus dealer.

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1-2. Opening, closing and locking the doors and trunk
1
Before driving
ES350_U
■When the electronic key battery is fully depleted
oP. 4 0 4
■Conditions affecting operation
oP. 3 0
■Customization that can be configured at Lexus dealer
Settings (e.g. trunk unlocking function) can be changed.
(Customizable features oP. 5 1 1 )
■Certification for wireless remote control
For vehicles sold in the USA
FCC ID: HYQ14AAB
FCC ID: HYQ13BZH
FCC ID: HYQ14ABK
FCC ID: HYQ13BZW
NOTE:
This device complies with part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.

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1-6. Theft deterrent system
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Before driving
ES350_U
■Triggering of the alarm
The alarm may be triggered in the following situations.
Stopping the alarm deactivates the system.
●A person inside the vehicle opens a door, the trunk or hood.
●The battery is recharged or replaced when the vehicle is locked.
■Panic mode
■When the battery is disconnected
Be sure to cancel the alarm system.
If the battery is discharged before canceling the alarm, the system may be triggered
when the battery is reconnected.
■Alarm-operated door lock
●When the alarm is operating, the doors are locked automatically to prevent
intruders.
●Do not leave the key inside the vehicle when the alarm is operating, and make
sure the key is not inside the vehicle when recharging or replacing the battery.
NOTICE
■To ensure the system correctly
Do not modify and remove the system. If modified or removed, the proper opera-
tion of the system cannot be guaranteed.
When is pushed for longer than about
one second, the headlights/tail lights/emer-
gency flashers will flash, the front and rear
interior lights will come on, and an alarm will
sound for about 60 seconds to deter any
person from trying to break into or damage
your vehicle.
To stop the alarm, push any button on the
wireless remote control.