2016 Lexus IS200t Replacing battery

TABLE OF CONTENTS6
IS350/300/200t_U (OM53D18U)
6-4. Using the other interior features
Other interior features ............ 387 • Sun visors ................................ 387
• Vanity mirrors ........................ 387
• Clock ........................................ 387
• Power outlet ...........................388
• Armrest.................................... 389
• Rear sunshade ...................... 389
• Assist grips .............................. 391
• Coat hooks .............................. 391
Garage door opener ............... 392
Compass ........................................397
LEXUS Enform Safety Connect......................................400
7-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 406
Cleaning and protecting the vehicle inte rior.................. 409
7-2. Maintenance Maintenance requirements .............................. 412
General maintenance................415
Emission inspection and maintenance (I/M)
programs ..................................... 418 7-3. Do-it-yourself maintenance
Do-it-yourself service precautions..................................419
Hood ................................................. 421
Positioning a floor jack..............422
Engine compartment ............... 423
Tires.................................................. 434
Tire inflation pressure ............... 443
Wheels ........................................... 446
Air conditioning filter ............... 448
Electronic key battery.............. 450
Checking and replacing fuses...............................................452
Light bulbs .................................... 455
8-1. Essential information Emergency flashers .................. 466
If your vehicle has to be stopped
in an emergency.......................467
8-2. Steps to take in an emergency
If your vehicle needs to be towed................................ 468
If you think something is wrong........................................ 474
Fuel pump shut off system .......475
If a warning light turns on or a warning buzzer
sounds .......................................... 476
If a warning message is displayed ................................ 482
If you have a flat tire .................. 496
If the engine will not start ........ 506
7Maintenance and care
8When trouble arises

721-2. Theft deterrent system
IS350/300/200t_U (OM53D18U)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the follow-
ing:
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
In the following cases, depending on the situation, the door may automatically lock to
prevent improper entry into the vehicle:
●The doors are unlocked manually without th e mechanical key and the alarm is trig-
gered.
●While the alarm is operating, the doors are unlocked manually without the mechanical
key.
●When recharging or replacing the battery
●A person inside the vehicle opens a door, the
trunk or hood, or unlocks the vehicle using a
inside lock button.
●The battery is recharged or replaced when the
vehicle is locked. ( P. 5 1 4 )
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation of
the system cannot be guaranteed.

1033-1. Key information
3
Operation of each component
IS350/300/200t_U (OM53D18U)
■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 soun d in the cabin when the engine is stopped.
(  P. 4 9 3 )
●As the electronic key always receives ra dio waves, the battery will become depleted
even if the electronic key is not used. The following symptoms indicate that the elec-
tronic key battery may be depleted. Replace the battery when necessary. ( P. 4 5 0 )
• The smart access system with push-button start or the wireless remote control does
not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
●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
• Table lamps
• Induction cookers
■Replacing the battery
 P. 4 5 0
■Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask your Lexus
dealer for details.
■If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.

405
Maintenance and care7
IS350/300/200t_U (OM53D18U)
7-1. Maintenance and careCleaning and protecting the vehicle exterior.................406
Cleaning and protecting the vehicle interior ..................409
7-2. Maintenance Maintenance requirements...............................412
General maintena nce ............... 415
Emission inspection and maintenance (I/M)
programs ..................................... 418
7-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................. 419
Hood .................................................421
Positioning a floor jack ............. 422
Engine compartment ............... 423
Tires .................................................. 434
Tire inflation pressure ............... 443
Wheels ........................................... 446
Air conditioning filter ...............448
Electronic key battery .............. 450
Checking and replacing fuses .............................................. 452
Light bulbs..................................... 455

4507-3. Do-it-yourself maintenance
IS350/300/200t_U (OM53D18U)
●Flathead screwdriver
●Small flathead screwdriver
●Lithium battery CR2032
Take out the mechanical key.
Remove the cover.
To prevent damage to the key, wrap the
tip of the screwdriver with tape.
Remove the depleted battery.
Insert a new battery with the “+” termi-
nal facing up.
Electronic key battery
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
1
2
3

4517-3. Do-it-yourself maintenance
7
Maintenance and care
IS350/300/200t_U (OM53D18U)
■Use a CR2032 lithium battery
●Batteries can be purchased at your Lexus dealer, local electrical appliance shops or
camera stores.
●Replace only with the same or equivalent type recommended by the manufacturer.
●Dispose of used batteries according to 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.
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart access system with push-button start and wireless remote control will not
function properly.
●The operational range will be reduced.
CAUTION
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking. Keep away
from children. Failure to do so could result in death or serious injury.
NOTICE
■For normal operation afte r 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 component inside the remote control.
●Do not bend either of the battery terminals.

5118-2. Steps to take in an emergency
8
When trouble arises
IS350/300/200t_U (OM53D18U)
■Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when stopping
the engine.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the electronic
key battery be replaced immediately when the battery is depleted. ( P. 4 5 0 )
■Changing engine switch modes
Release the brake pedal and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is pressed.
( P. 1 6 5 )
■When the electronic key does not work properly
●Make sure that the smart access system wi th push-button start has not been deacti-
vated in the custom ization setting. If it is off, turn the function on.
(Customizable features P. 5 5 2 )
●Check if battery-saving mo de is set. If it is set, cancel the function. ( P. 117)
CAUTION
■When using the mechanical key and operating the power windows or moon roof
Operate the power window or moon roof afte r checking to make sure that there is no
possibility of any passenger having any of their body parts caught in the window or
moon roof.
Also, do not allow children to operate the mech anical key. It is possible for children and
other passengers to get caught in the power window or moon roof.
3

5148-2. Steps to take in an emergency
IS350/300/200t_U (OM53D18U)
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is not
in use, due to natural discharge and the draining effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.)
■When recharging or replacing the battery
●In some cases, it may not be possible to unlock the doors using the smart access system
with push-button start when the battery is discharged. Use the wireless remote control
or the mechanical key to lock or unlock the doors.
●The engine may not start on the first attempt after the battery has recharged but will
start normally after the second attempt. This is not a malfunction.
●The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery discharged, be
especially careful when reconnecting the battery.