2013 Lexus IS250 key

496
5-2. Steps to take in an emergency
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 9 )
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 electron ic key and vehicle is interrupted
(  P. 37) or the electronic key canno t be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In su ch cases, the doors and trunk can be
opened or the engine can be started by following the procedure below.
STEP1
STEP2

5
When trouble arises
497
5-2. Steps to take in an emergency
After the operation is completed,
reinstall the cover.
Hook the upper claw of the cover
onto the upper catch on the vehi-
cle side, and then push on the
lower side of the cover.
Make sure that the lower claw of
the cover is securely fastened to
the lower catch on the vehicle side.
If the cover is not securely
attached, it may fall off while driv-
ing.
Tr u n k
Turn the mechanical key clock-
wise to open.
STEP3

498
5-2. Steps to take in an emergency
Starting the engine
Shift the shift lever to P and apply the brakes.Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
the “ENGINE START STOP”
switch if any of the doors is opened
and closed while the key is touched
to the switch.
Press the “ENGINE START STOP” switch within 10 seconds
after the buzzer sounds, keepin g the brake pedal depressed.
In the event that the engine still cannot be started, contact your Lexus
dealer.
STEP1
STEP2
STEP3

5
When trouble arises
499
5-2. Steps to take in an emergency
■Stopping the engine
Shift the shift lever to P and press the “ENGINE START STOP” switch as you nor-
mally do when stopping the engine.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery depletes.
(  P. 4 2 6 )
■Changing “ENGINE START STOP” switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the
“ENGINE START STOP” switch.
The engine does not start and modes will be changed each time the switch is
pressed. ( P. 141)

5
When trouble arises
501
5-2. Steps to take in an emergency
■Avoiding a discharged battery
●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, etc.
■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 batt ery recharges automatically during driving.)
■When the battery is removed or discharged
Make sure that the key is not inside the vehicle when recharging or replacing the
battery. The key may be locked in the vehicle if the alarm is activated. ( P. 9 4 )
Maintain the engine speed of th e second vehicle and turn the
“ENGINE START STOP” switch to IGNITION ON mode,
then start the vehicle’s engine.
Once the vehicle’s engine ha s started, remove the jumper
cables in the exact reverse ord er in which they were con-
nected.
Once the engine starts, have the ve hicle checked at your Lexus dealer
as soon as possible.STEP5
STEP6

543
6-2. Customization
6
Vehicle specifications
Wireless
remote con-
trol
(
P. 4 5 )
Time elapsed before auto-
matic door lock function is
activated if door is not
opened after being
unlocked
60 seconds
30 seconds
120 seconds
Operation signal
(Emergency flashers)OnOff
Operation signal
(Buzzer) OnOff
Door lock buzzerOnOff
Tr u n k u n l o c k i n g f u n c t i o nOnOff
Trunk unlocking operationPush and holdPush twice
One short push
Panic functionOnOff
Door lock
(
P. 4 8 )
Unlocking using a key
Driver's door
unlocked in one
step, all doors
unlocked in two
steps
All doors
unlocked in one
step
Speed-detecting auto-
matic door lock functionOffOn
Opening driver's door
unlocks all doorsOffOn
Shifting gears to P
unlocks all doorsOnOff
Shifting gears to a posi-
tion other than P locks all
doors
OnOff
ItemFunctionDefault settingCustomizedsetting

544
6-2. Customization
Steering
wheel
(
P. 74 )
Auto tilt-away functionOnOff
Pow e r w i n -
dows
(
P. 8 1 )
Linked door key opera-
tionOpen and close
Off
Open only
Close only
Wireless remote control
linked operationOffOpen only
Moon roof
(
P. 8 4 )
Linked door key opera-
tionOpen and close
Off
Open only
Close only
Linked operation of com-
ponents when door key is
used
Slide onlyTilt only
Wireless remote control
linked operationOffOpen only
Linked operation of com-
ponents when wireless
remote control is used
Slide onlyTilt only
Automatic
light control
system
(
P. 1 6 7 )
Light sensor sensitivityLevel 3Level 1 to 5
Ti m e e l a p s e d b e f o r e
headlights automatically
turn off after doors are
closed
30 seconds
0 seconds
60 seconds
90 seconds
Lights
(
P. 1 6 9 )
Daytime running light sys-
tem (U.S.A. only)OnOff
ItemFunctionDefault settingCustomizedsetting

570
Alphabetical index
Child safetyAirbag precautions............................ 105
Battery precautions ............. 404, 502
Child restraint system......................... 115
Child-protectors ................................... 49
How your child should wear the seat belt .......................................... 69
Installing child restraints .................... 119
Moon roof precautions ..................... 87
Power window lock switch................81
Power window precautions ............ 83
Removed electronic key battery precautions ........................427
Seat belt comfort guide ..................... 67
Seat belt extender precautions ....... 71
Seat belt precautions .......................... 70
Seat heater precautions ..... 340, 342
Trunk precautions ................................ 55 Cigarette lighter ................................... 337
Cleaning
Exterior .................................................... 372
Interior......................................................376
Seat belts ................................................ 377
Clock ......................................................... 332
Coat hooks.............................................. 347
Compass .................................................. 359
Condenser ..............................................400
Console box ........................................... 325
Cooling system Engine overheating .......................... 504
Cornering assist sensors .................... 185
Cruise control........................................... 181
Cup holder .............................................. 327
Curtain shield airbags ........................... 99
Customizable features ....................... 542