Page 620 of 676

6208-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
Once the vehicle’s engine has started, remove the jumper cables in the exact
reverse order from which they were connected.
Once the engine starts, have the vehicle inspected at any authorized Lexus
retailer or Lexus authorized repairer, or an y reliable repairer as soon as possible.
■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 stopped. (Vehicles with
a Stop & Start system: except when the engine is stopped by the Stop & Start system.)
●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 entry & start
system when the battery is discharged. Us e the wireless remote control or the mechan-
ical 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.
●Vehicles with Stop & Start system:
For a while after the battery terminals have been disconnected or reconnected, for a
while after the battery has been replaced, the Stop & Start system may not automati-
cally stop the engine for approximately 5 to 60 minutes.
■When exchanging the battery (vehicles with Stop & Start system)
Use a battery specified for use with the Stop & Start system and equivalent to a genuine
battery. If an unsupported battery is used, Stop & Start system functions may be
restricted to protect the battery.
Also, battery performance may decrease and the engine may not be able to restart.
Contact any authorized Lexus retailers or Le xus authorized repairers, or any reliable
repairers.
7
Page 643 of 676
643
9
9-2. Customization
Vehicle specifications
IS200t_EE(OM53D77E)
■Door lock (
P. 128, 135, 615)
■Smart entry & start system and wireless remote control ( P. 128, 135)
FunctionDefault settingCustomized setting
Unlocking using a mechanical
keyAll doors unlocked
in one step
Driver’s door
unlocked in one step, all doors
unlocked in two steps
—O
Speed-detecting automatic door
lock functionOnOffOO
Shifting gears to position other
than P locks all doorsOffOnOO
Shifting gears to P unlocks all
doorsOffOnOO
Opening driver’s door unlocks all
doorsOnOffOO
Locking/unlocking of the trunk
when all doors are locked/
unlocked
OnOff—O
12
FunctionDefault settingCustomized setting
Operation signal
(Emergency flashers)OnOffOO
Time elapsed before automatic
door lock function is activated if
door is not opened after being
unlocked
30 seconds
60 seconds
—O120 seconds
Open door warning buzzerOnOff—O
Welcome light illumination con-
trolOnOff—O
12
Page 644 of 676
6449-2. Customization
IS200t_EE(OM53D77E)
■Smart entry & start system (P. 128, 135, 141)
*: If equipped
■Wireless remote control ( P. 128, 135)
■Driving position memory* ( P. 161)
*: If equipped
FunctionDefault settingCustomized setting
Smart entry & start systemOnOffOO
Smart door unlocking*All the doorsDriver’s doorOO
Number of consecutive door
lock operations*As many as desired2 times—O
12
FunctionDefault settingCustomized setting
Wireless remote controlOnOff—O
Unlocking operationAll doors unlocked
in one step
Driver’s door
unlocked in one
step, all doors
unlocked in two steps
OO
Trunk unlocking operationPress and hold
(short)
One short press
—O
Push twice
Press and hold (long)
Off
12
FunctionDefault settingCustomized setting
Driver’s seat movement when
exiting the vehicleStandardOffOOPartial
Doors linked to the driving posi-
tion memory recall functionDriver's doorAll doors—O
12
Page 645 of 676
645
9
9-2. Customization
Vehicle specifications
IS200t_EE(OM53D77E)
■Outside rear view mirrors (
P. 173)
*: If equipped
■Power windows ( P. 177)
■Moon roof* ( P. 181)
*: If equipped
FunctionDefault settingCustomized setting
Automatic mirror folding and
extending operation*
Linked to the lock-
ing/unlocking of the
doorsOff
—OLinked to operation
of the engine switch
12
FunctionDefault settingCustomized setting
Mechanical key linked operationOffOn—O
Wireless remote control linked
operationOffOn—O
Wireless remote control linked
operation signal (buzzer)OnOff—O
12
FunctionDefault settingCustomized setting
Mechanical key linked operationOffOn—O
Linked operation of components
when mechanical key is used
(open only)Slide onlyTilt only—O
Wireless remote control linked
operationOffOn—O
Linked operation of components
when wireless remote control is
used (open only)Slide onlyTilt only—O
Wireless remote control linked
operation signal (buzzer)OnOff—O
12
Page 648 of 676
6489-2. Customization
IS200t_EE(OM53D77E)
■Illumination (P. 465)
FunctionDefault settingCustomized setting
Time elapsed before the interior
lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation after the engine
switch is turned offOnOff—O
Operation when the doors are
unlockedOnOff—O
Operation when you approach
the vehicle with the electronic
key on your person
OnOff—O
Inside door handle lightsOnOff—O
Time elapsed before the outer
foot lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation of the outer foot lights
when you approach the vehicle
with the electronic key on your
person
OnOff—O
Operation of the outer foot lights
when the doors are unlocked
with the power door lock switchOnOff—O
12
Page 649 of 676

649
9
9-2. Customization
Vehicle specifications
IS200t_EE(OM53D77E)
■Vehicle customization
●When the speed-detecting automatic door lock and shift-linked automatic door lock
are both on, the door lock operates as follows.
• When shifting the shift lever to any position other than P, all the doors will be locked.
• If the vehicle is started with all doors locked, the speed-detecting automatic door
lock will not operate.
• If the vehicle is started with any door unlocked, the speed-detecting automatic door
lock will operate.
●When the smart entry & start system is off, the entry unlock function cannot be custom-
ized.
●When the doors remain closed after unlock ing the doors and the timer activated auto-
matic door lock function activates, signals will be generated in accordance with the
operation buzzer volume and operational signal (Emergency flashers) function set-
tings.
●Some settings can be changed using a switch or the audio system screen. If a setting is
changed using a switch, the changed setting will not be reflected on the audio system
screen until the engine switch is turned off and then to IGNITION ON mode.
WARNING
■During customization
As the engine needs to be running during customization, ensure that the vehicle is
parked in a place with adequate ventilation. In a closed area such as a garage, exhaust
gases including harmful carbon monoxide (CO) may collect and enter the vehicle. This
may lead to death or a serious health hazard.
NOTICE
■During customization
To prevent battery discharge, ensure that the engine is running while customizing fea-
tures.
Page 652 of 676

652
IS200t_EE(OM53D77E)
What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be made
by any authorized Lexus retailer or Le xus authorized repairer, or any reliable
repairer. ( P. 124)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any
reliable repairer immediately. ( P. 127)
●Is the electronic key battery weak or depleted? ( P. 527)
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. ( P. 205)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly due to the condition of the radio wave.
( P. 143)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
( P. 132)
If you have a problem, check the following before contacting any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened
Page 654 of 676

654What to do if... (Troubleshooting)
IS200t_EE(OM53D77E)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. (P. 177)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. ( P. 206)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 557)
●The parking brake indicator is on
Is the parking brake released? ( P. 217)
Depending on the situation, other types of warning buzzer may also sound.
( P. 554, 560)
●Did anyone inside the vehicle open a door or anything move inside the vehicle
during setting the alarm?
The sensor detects them and the alarm sounds. ( P. 81)
Do one of the following to deactivate or stop the alarm:
• Unlock the doors or open the trunk using the entry function or wireless remote con- trol.
• Start the engine.
The windows do not open or close by operating the power window
switches
The engine switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and th e horn sounds (if equipped)