Lexus IS300h 2017 Owner's Manual

5818-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
Master warning light
The master warning light also comes on or flashes in order to indicate that a message
is currently being displayed on the multi-information display.
Multi-information display
If any of the warning lights come on ag ain after the following actions have been
performed, contact any authorized Lexus retailer or Lexus authorized repairer,
or any reliable repairer.
If a warning message is displayed
If a warning is shown on the multi-info rmation display, stay calm and perform
the following actions:
Except F SPORT modelsF SPORT models (when the main
meter is in the center position)
F SPORT models (when the main
meter is in the right-side position)
1
2

5828-2. Steps to take in an emergency
IS300h_EE(OM53D89E)
Warning message and warning buzzer list
Warning messageDetails/Actions
(If equipped)
Indicates that there is a high possibility of a frontal colli-
sion, or that the pre-collision braking function is operat- ing
A buzzer also sounds.
 Avoid the collision by decelerating using the brakes or taking other evasive actions.
Indicates that the hybrid sy stem was stopped with the
shift lever not in P
A buzzer also sounds.  Shift the shift lever to P.
Indicates that the hybrid system was stopped while driv-
ing
A buzzer also sounds.  Stop the vehicle in a safe place such as the shoulder
of a road.
(If equipped)
Indicates that your vehicle is nearing the vehicle ahead
(in vehicle-to-vehicle distance control mode) A buzzer also sounds.
 Slow the vehicle by applying the brakes.
(Flashes)
(Flashes)

5838-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
(If equipped)
Indicates that the vehicle has deviated from the lane (while the LDA [Lane Departure Alert with steering con-
trol] system are operating)
The lane line on the side the vehicle has deviated from flashes in amber.
A buzzer also sounds.
 Check around the vehicle and back to inside of the lane lines.
Indicates that:• The brake fluid level is low; or
• The brake system is malfunctioning
A buzzer also sounds.  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.
Indicates a malfunction in the hybrid system
A buzzer also sounds.
 Immediately stop the vehicle in a safe place and contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
Indicates that one or more of the doors is not fully closed The system also indicates which doors are not fully
closed.
If the vehicle reaches a speed of 5 km/h (3 mph),
flashes and a buzzer sounds to indicate that
the door(s) are not yet fully closed.  Make sure that all the doors are closed.
Warning messageDetails/Actions
(Flashes)
(Flashes)

5848-2. Steps to take in an emergency
IS300h_EE(OM53D89E)
Indicates that the hood is not fully closed If the vehicle reaches a speed of 5 km/h (3 mph),
flashes and a buzzer sounds to indicate that
the hood is not yet fully closed.
 Close the hood.
Indicates that the trunk is not fully closed
If 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 the Lexus parking assists-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 parkin g assist-sensor is dirty or
covered with ice
A buzzer also sounds.  Clean the sensor.
Indicates that the accelerator pedal is depressed while
the shift position is in N
A buzzer also sounds.  Release the accelerator pedal and shift the shift
lever to D, S or R.
Warning messageDetails/Actions
(Flashes)

5858-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
Indicates that the accelerator pedal is depressed to stop the vehicle on an upward slope, etc.
A buzzer also sounds.
 Release the accelerator pedal and depress the brake pedal.
Indicates that the hybrid battery (traction battery) powerhas dropped because a long period of time has elapsed
after shifting the shift lever to N
A buzzer also sounds.  Restart the hybrid system when starting the vehicle.
Indicates a malfunction in the hybrid system
A buzzer also sounds.
 Immediately stop the vehicle in a safe place and contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
Warning messageDetails/Actions
(Flashes)
(Flashes)

5868-2. Steps to take in an emergency
IS300h_EE(OM53D89E)
Indicates that the hybrid battery (traction battery) is low
A buzzer also sounds.
 When stopping the vehicle for a long period of time, shift the shift lever to P. The hybrid battery (traction
battery) cannot be charged wi th the shift lever in N.
Indicates a malfunction in the EPS (Electric Power Steer-
ing) 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
(Flashes)

5878-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
Indicates that the vehicle is being driven at 5 km/h (3
mph) or more with the parking brake still engaged A buzzer also sounds.
 Release the parking brake.
Indicates that the shift position was changed and drive
start control was operated wh ile depressing the acceler-
ator pedal A buzzer also sounds.
 Momentarily release the accelerator pedal.
(If equipped)
Indicates that the LDA (Lane Departure Alert with steer-
ing control) system has dete rmined that the driver does
not have their hands on the steering wheel while the steering control function is on
A buzzer also sounds. (For Israel)
 Firmly hold the steering wheel.
(If equipped)
Indicates that steering control function is temporarily canceled due to the LDA (Lane Departure Alert with
steering control) system determining that the driver
does not have their hands on the steering wheel while the steering control function is on
 Firmly hold the steering wheel.
Warning messageDetails/Actions
(Flashes)
(Flashes)

5888-2. Steps to take in an emergency
IS300h_EE(OM53D89E)
Indicates an engine malfunction
A buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.
Indicates an engine malfunction A buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
Indicates an engine malfunctionA buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner 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

5898-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
Indicates a malfunction in:
• The ABS; or • The brake assist system
A buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.
Indicates that the engine coolant temperature is too high A buzzer also sounds.
 P. 636
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.
Warning messageDetails/Actions
(F SPORT models)

5908-2. Steps to take in an emergency
IS300h_EE(OM53D89E)
(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.
(If equipped)
Indicates that: • The grille shutter syst em cannot operate; or
• The grille shutter is di rty or covered with ice
A buzzer also sounds.  Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
Indicates a malfunction in t he smart entry & start 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