Page 563 of 676
5638-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
Indicates that the trunk is not fully closedIf the vehicle reaches a speed of 5 km/h (3 mph),
flashes and a buzzer sounds to indicate that
the trunk is not yet fully closed.
Close the trunk.
(If equipped)
Indicates a malfunction in th e Lexus parking assist-sen-
sor The assist-sensors flash.
A buzzer also sounds.
Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
(If equipped)
Indicates that a Lexus parking assist-sensor is dirty or
covered with ice
A buzzer also sounds.
Clean the sensor.
Warning messageDetails/Actions
Page 568 of 676
5688-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
Indicates a malfunction in the vehicle’s charging system.
Immediately stop the vehicle in a safe place and
contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer. Con-
tinuing to drive the vehicle may be dangerous.
(If equipped)
Indicates that the radar sensor is dirty or covered with
ice
A buzzer also sounds.
Clean the sensor.
(If equipped)
Indicates that the dynamic radar cruise control system
cannot be used temporarily due to bad weather
A buzzer also sounds.
Use the dynamic radar cruise control system when
it becomes available again.
Warning messageDetails/Actions
(F SPORT
models)
Page 569 of 676

5698-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
Indicates a malfunction in the smart entry & start systemA buzzer also sounds.
Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
(If equipped)
Indicates that a Blind Spot Monitor sensor or the sur-
rounding area on the bumper is dirty or covered with ice
A buzzer also sounds.
Clean off the dirt, snow, ice, etc. and drive the vehi-
cle with the operation conditions of the BSM func-
tion ( P. 331) satisfied for approximately 10
minutes. If the warning message does not disappear,
the sensor may be misaligned. Have the vehicle
inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
(If equipped)
Indicates a malfunction in:
• The cruise control system; or
• The dynamic radar cruise control system Press the “ON/OFF” button once to deactivate the
system, and then press the button again to reactivate
the system.
A buzzer also sounds.
Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
(If equipped)
Indicates a malfunction in the LDA (Lane Departure
Alert with steering control) system A buzzer also sounds.
Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
Warning messageDetails/Actions
Page 570 of 676

5708-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
(If equipped)
The operation conditions of the camera sensor (tem-
perature, etc.) are not met.
When the operation conditions of the camera sen-
sor (temperature, etc.) are met, the following sys-
tems will become available.
• PCS (Pre-Collision System)
• LDA (Lane Departure Alert with steering control) system
• Automatic High Beam
• RSA (Road Sign Assist)
(If equipped)
Indicates that the system is temporarily unavailable due
to a malfunction in a sensor other than the camera sen-
sor A buzzer also sounds.
Turn the LDA (Lane Depart ure Alert with steering
control) system off, wait for a little while, and then
turn the LDA (Lane Departure Alert with steering
control) system back on.
(If equipped)
Dirt, rain, condensation, ice, snow, etc., are present on
the windshield in front of the camera sensor.
The following systems will be temporarily unusable.
• PCS (Pre-Collision System)
• LDA (Lane Departure Alert with steering control) system
• Automatic High Beam
• RSA (Road Sign Assist)
Turn the system off, remove any dirt, rain, condensa-
tion, ice, snow, etc., from the windshield, and then
turn the system back on.
(If equipped)
Indicates a malfunction in the PCS (Pre-Collision Sys-
tem)
A buzzer also sounds.
Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
Page 578 of 676

5788-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
(If equipped)
Indicates that the PCS (Pre-Collision System) is tempo-
rarily unavailable
When conditions improve, the system resumes
operation. If this message is displayed continuously,
have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
Indicates that operation of large electricity consuming
systems such as the air conditioning system are sus-
pended
Stop using unnecessary electric components to
reduce electricity consumpt ion. Wait a while until
the electric power supply is restored.
If this message is frequently displayed, have the
vehicle inspected by any authorized Lexus retailer
or Lexus authorized repairer, or any reliable
repairer immediately.
(If equipped)
Indicates that the PCS (Pre-Collision System) is tempo-
rarily unavailable
When conditions improve, the system resumes
operation. If this message is displayed continuously,
have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
(If equipped)
Indicates that part of the PCS (Pre-Collision System)
sensor is dirty, covered with ice, etc.
Remove any dirt, ice, etc.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes)
Page 611 of 676

6118-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
WARNING
■When using the compact spare tire
●Remember that the compact spare tire provided is specifically designed for use with
your vehicle. Do not use your compact spare tire on another vehicle.
●Do not use more than one compact spare tires simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting operations
that cause sudden engine braking.
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may not
operate correctly:
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 80 km /h (50 mph) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to observe
this precaution may lead to an accid ent causing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their storage
location to reduce the possibility of personal injury during a collision or sudden brak-
ing.
• ABS & Brake assist
•VSC
•TRC
• Cruise control (if equipped)
• Dynamic radar cruise control (if equipped)
• PCS (if equipped)
•EPS • LDA (Lane Departure Alert with
steering control) (if equipped)
• RSA (Road Sign Assist) (if equipped)
• Lexus parking assist monitor
(if equipped)
• Lexus parking assist-sensor (if equipped)
• Navigation system (if equipped)
Page 646 of 676

6469-2. Customization
IS200t_EE(OM53D77E)
■Turn signal lever (P. 216)
*1: After flashing the turn signal lights when turning left or right while this function is off
and the turn signal lever is moved to the fi rst position in the direction of the flashing
light, the turn signal lights can be selected to be flashing or off.
*2: The turn signal lights keep flashing if the turn signal lever is moved to the first position in the direction of flashing light.
*3: The turn signal lights will be off if the turn signal lever is moved to the first position inthe direction of flashing light.
■Automatic light control system ( P. 218)
■Lexus parking assist-sensor*1 ( P. 299)
*1: If equipped
*2: When Lexus parking assist-sensor is operating.
FunctionDefault settingCustomized setting
The number of times the turn sig-
nal lights flash automatically
when the turn signal lever is
moved to the first position during
a lane change
*1
3
5
—O7
Off*2
Off*3
12
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2OO
Time elapsed before headlights
automatically turn off30 seconds
60 seconds
—O90 seconds
120 seconds
12
FunctionDefault settingCustomized setting
Detection distance of the front
center sensorFarNearOO
Detection distance of the rear
center sensorFarNearOO
Buzzer volume31 to 5OO
Display setting*2All sensors
displayedDisplay offOO
12
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)