2011 Lexus IS250 remote bAttery

34
1-2. Opening, closing and locking the doors and trunk
IS350/250_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 a month or more
●When the electronic key has been left within approximately 3 ft. (1 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 9 3 )
■Electronic key battery depletion
●The standard battery life is 1 to 2 years. (The card key battery life is about a year
and a half.)
●If the battery becomes low, an alarm will sound in the cabin when the engine
stops. ( →P. 477)
●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.
(→ P. 4 2 1 )
●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
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
•Glass top ranges
•Table lamps

41
1-2. Opening, closing and locking the doors and trunk
1
Before driving
IS350/250_U
■Pa n i c m o d e
■Electronic key battery depletion
→P. 3 4
■Security feature
→P. 3 6
■When the electronic key battery is fully depleted
→P. 4 2 1
■Conditions affecting operation
→P. 3 2
■Customization that can be configured at Lexus dealer
Settings (e.g. trunk unlocking function) can be changed.
(Customizable features →P. 5 4 0 ) When is pushed for longer than about
one second, an alarm will sound for about 60
seconds and the vehicle lights will flash 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.

56
1-3. Adjustable components (seats, mirrors, steering wheel)
IS350/250_U
■Canceling the linked door unlock operation
Turn the “ENGINE START STOP” switch OFF and close the driver's door.
Using the wireless remote control: While pushing the “SET” button, press on the wireless remote control until the signal beeps.
Using the door lock switch: While pr essing the “SET” button, press the
lock or unlock side on the door lock switch until the signal beeps.
■Operating the driving position memory after turning the “ENGINE START
STOP” switch OFF
Memorized positions (except for the steering wheel position) can be activated up
to 180 seconds after the driver's door is opened and another 60 seconds after it is
closed again, even after turning the “ENGINE START STOP” switch OFF.
■To cancel seat position recall
Perform any of the following operations.
●Push the “SET” button.
●Push button “1”, “2” or “3”.
●Adjust the seat using the switches (only cancels seat position recall).
■If the battery is disconnected
The memorized positions are erased when the battery is disconnected.
CAUTION
■Seat adjustment caution
Take care during seat adjustment that the seat does not strike the rear passenger or
squeeze your body against the steering wheel.
STEP1
STEP2

354
3-7. Other interior features
IS350/250_U
Erasing the entire HomeLink memory (all three programs)Press and hold the 2 outside but-
tons for 10 seconds until the indi-
cator light flashes.
If you sell your vehicle, be sure to
erase the programs stored in the
HomeLink
 memory.
■Before programming
●Install a new battery in the remote control transmitter.
●The battery side of the remote control transmitter must be pointed away from
the HomeLink button.
■Certification for the garage door openerFor vehicles sold in the U.S.A.
FCC ID: NZLWZLHL4
FCC ID: NZLOBIHL4
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.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.

422
4-3. Do-it-yourself maintenance
IS350/250_U
■If the electronic key battery is discharged
The following symptoms may occur.
●The smart access system with push-button start and wireless remote control will
not function properly.
●The operational range is reduced.
■Use a CR1632 lithium battery
●Batteries can be purchased at your Lexus dealer, jewelers, or camera stores.
●Replace only with the same or equivalent type recommended by a Lexus dealer.
●Dispose of used batteries according to the local laws.
■When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealers. Your Lexus dealer
can replace the battery for you.
CAUTION
■Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child, they can
cause choking. Failure to do so could result in death or serious injury
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents.
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other components inside the remote control.
●Do not bend either of the battery terminals.

5
When trouble arises
493
5-2. Steps to take in an emergency
IS350/250_U
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk and key linked functions
Use the mechanical key built in to the electronic keys to operate the
doors. (→P. 2 5 )
Doors Remove the cover on the driver’s
door handle.
Locks all the doors
Closes the windows and moon
roof (turn and hold)
Unlocks the door
Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the other
doors.
Opens the windows and moon
roof (turn and hold)
If communication between the electronic key and vehicle is interrupted
(→ P. 32) or the electronic key cann ot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In such cases, the doors and trunk can be
opened or the engine can be started by following the procedure below.
STEP1
STEP2

573
Alphabetical index
IS350/250_U
Warning buzzersBrake system ......................................... 461
Open door .......................................... 463
Seat belt reminder ............................ 463
Warning lights Anti-lock brake system .................. 462
Brake assist system .......................... 462
Brake system ......................................... 461
Charging system ............................... 462
Electric power steering
warning light ..................................... 462
Low fuel level....................................... 463
Malfunction indicator lamp .......... 462
Master warning light ........................ 463
Open door ........................................... 463
Pretensioners ...................................... 462
Seat belt reminder light .................. 463
SRS airbags .......................................... 462
Tire pressure warning light........................................................ 463
Warning messages AWD system ......................................... 471
Engine oil level .....................................473
Engine oil maintenance...................473
Engine oil pressure........................... 470
Hood ........................................................473
Intuitive parking assist ........... 471, 473
Moon roof..............................................473
Open door ............................................473
Parking brake .......................................473 Smart access system with
push-button start ............................ 477
Steering lock........................................... 471
Tire pressure warning system...................... 471, 473
Trunk ........................................................ 473
Washer fluid ......................................... 473
Washer
Checking .............................................. 399
Preparing and checking before winter ..................................... 195
Switch........................................................ 169
Washing and waxing ...........................368
Weight Cargo capacity ...................................... 191
Load limits .............................................. 194
Weight.................................................... 508
Wheels ....................................................... 416
Window glasses ...................................... 75
Window lock switch ............................... 75
Windows Power windows ..................................... 75
Rear window defogger.....................214
Washer .................................................... 169
Windshield wipers................................. 169
Windshield wiper de-icer................... 215
Wireless remote control key Replacing the battery.........................421
WMA disc ............................................... 234W