key LEXUS IS250C 2013 Workshop Manual

5
When trouble arises
511
5-2. Steps to take in an emergency
Once3 times
(Flashing)
Indicates that the
driver’s door has
been opened or
closed with the
shift lever in P, the
“ENGINE START
STOP” switch in
any mode other
than OFF and the
electronic key
outside of the
detection area.
Tu r n t h e
“ENGINE START
STOP” switch
OFF or confirm
the location of the
electronic key.
OnceCon-
tinuous
(Displayed alternately)(Flashing)
Indicates that the
driver’s door has
been opened or
closed (with the
shift lever out of in
P, the “ENGINE
START STOP”
switch in any
mode other than
OFF and the elec-
tronic key outside
of the detection
area).
• Shift the shift lever to P.
•Confirm the
location of the
electronic key.
Once
(Flashing)
Indicates that the
key battery is low.Replace the bat-
tery. ( P. 4 4 9 )
Interior
buzzerExterior buzzerMessageDetailsCorrection
procedure

512
5-2. Steps to take in an emergency
*: If the engine does not start when the electronic key is inside the vehicle, theelectronic key battery may be depleted or there may be difficulties receiving the
signal from the key. ( P. 3 6 )
Once
Indicates that a
door has been
opened or closed
and the “ENGINE
START STOP”
switch has been
switched twice to
ACCESSORY
mode from OFF.
Press the
“ENGINE START
STOP” switch
while applying the
brakes.

(Flashing)
Indicates that the
steering lock has
not released
within 3 seconds
of pressing the
“ENGINE START
STOP” switch.Press the
“ENGINE START
STOP” switch
again while turn-
ing the steering
wheel with the
brake pedal
depressed.
OnceIndicates that the
electronic key
does not operate
properly.
P. 5 3 0

Interior
buzzerExterior buzzerMessageDetailsCorrection
procedure

5
When trouble arises
527
5-2. Steps to take in an emergency
If you lose your keys
New genuine Lexus keys can be made by your Lexus dealer using the other
key and the key number stamped on your key number plate.

528
5-2. Steps to take in an emergency
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk
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 both side doors
Unlocks the door
Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the passenger’s
door.
If communication between the electron ic key and vehicle is interrupted
(  P. 36) or the electronic key cannot 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
529
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
Remove the cover using a
mechanical key.
Turn the mechanical key clock-
wise to open.
STEP3
STEP1
STEP2

530
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
531
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 4 9 )
■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. 1 4 8 )

5
When trouble arises
533
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 vehi-
cle 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 dis-
charge, and the engine may be unable to start. (The battery recharges automat-
ically 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. 1 0 1 )
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

587
6-2. Customization
6
Vehicle specifications
Wireless
remote con-
trol
(
P. 4 4 )
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 7 )
Unlocking using a key
Driver's door
unlocked in one
step, both side
doors unlocked
in two steps
Both side doors
unlocked in one
step
Speed-detecting auto-
matic door lock functionOffOn
Opening driver's door
unlocks both side doors OffOn
Shifting gears to P
unlocks both side doorsOnOff
Shifting gears to position
other than P locks both
side doors
OnOff
ItemFunctionDefault settingCustomizedsetting

611
Alphabetical index
Back-up lightsWattage .................................................568
Battery Checking ................................................427
If the vehicle has a discharged battery.................................................. 532
Preparing and checking before winter .................................... 233
Bluetooth
® audio* .............................. 303
Bluetooth® phone*..............................322
Brake Fluid .......................................................... 425
Parking brake ........................................159
Brake assist ............................................... 214
Care Exterior ................................................... 396
Interior.......................................................401
Seat belts ............................................... 402
Cargo capacity ......................................229
Cargo hooks ...........................................374
CD changer* ..........................................264
CD player* ..............................................264
Chains ....................................................... 233 Child restraint system
Booster seats, definition ................... 122
Booster seats, installation ................129
Convertible seats, definition ........... 122
Convertible seats, installation ........129
Front passenger occupant classification system ......................... 117
Infant seats, definition ......................... 122
Infant seats, installation ......................129
Installing CRS with LATCH anchors .................................................. 127
Installing CRS with seat belts .........129
Installing CRS with top straps........132
Child safety Airbag precautions .............................. 112
Battery precautions ..............429, 534
Child restraint system ........................ 122
How your child should wear the seat belt .......................................... 73
Installing child restraints....................126
Power window lock switch ..............83
Power window precautions ........... 85
Removed electronic key battery precautions....................................... 450
Seat belt guide.......................................... 71
Seat belt extender precautions...... 75
Seat belt precautions .......................... 74
Seat heater precautions.................. 372
Trunk precautions................................. 53
B
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
C