2018 Lexus IS350 Owner's Manual / LEXUS 2018 IS300,IS350 OWNER'S MANUAL (OM53E34U)

5378-2. Steps to take in an emergency
8
When trouble arises
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Indicates a malfunction in the vehicle’s charging system.
→Immediately stop the vehicle in a safe place and
contact your Lexus dealer. Continuing to drive the
vehicle may be dangerous.
Indicates that the radar sensor is dirty or covered with
ice A buzzer also sounds.
→ Clean the sensor.
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)

5388-2. Steps to take in an emergency
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Indicates a malfunction in the smart access system with
push-button start
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
(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. 281) satisfied for approximately 10
minutes. If the warning me ssage does not disappear,
the sensor may be misaligned. Have the vehicle
inspected by your Lexus dealer.
Indicates a malfunction in the dynamic radar cruise con-
trol 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 your Lexus dealer.
Indicates a malfunction in the LDA (Lane Departure
Alert with steering control) system
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Warning messageDetails/Actions

5398-2. Steps to take in an emergency
8
When trouble arises
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
The operation conditions of the camera sensor are not
met.
The following systems may be suspended until the
problem shown in the message is resolved.
• PCS (Pre-Collision System)
• LDA (Lane Departure Alert with steering control)
• Dynamic radar cruise control
•Automatic High Beam
→ P. 231
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 Departure Alert with steering
control) system off, wait for a little while, and then
turn the LDA (Lane Depart ure Alert with steering
control) system back on.
Warning messageDetails/Actions

5408-2. Steps to take in an emergency
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Indicates a malfunction in the PCS (Pre-Collision Sys-
tem)
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
(If equipped)
Indicates a malfunction in the BSM (Blind Spot Monitor)
system
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Indicates abnormal engine oil pressure
A buzzer also sounds.
→ Immediately stop the vehicle in a safe place and
contact your Lexus dealer.
Warning messageDetails/Actions

5418-2. Steps to take in an emergency
8
When trouble arises
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Indicates that the automatic transmission fluid tempera-
ture is too high
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
(AWD models)
Indicates a malfunctio n in the AWD system
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Indicates that the LDA (Lane Departure Alert with steer-
ing control) system cannot be used as the vehicle speed
is approximately 32 mph (50 km/h) or less
→ Drive the vehicle at approximately 32 mph
(50 km/h) or more.
Indicates that the engine was stopped while driving
A buzzer also sounds.
→ Operate the steering wheel with more force than
usual.
Warning messageDetails/Actions

5428-2. Steps to take in an emergency
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Indicates that the engine switch is turned off or turned to
ACCESSORY mode and the driver’s door is opened
while the lights are turned on
A buzzer also sounds.
→ Turn the lights off.
(If equipped)
Indicates that the moon roof is not fully closed (with the
engine switch off, and the driver’s door open)
A buzzer also sounds.
→ Close the moon roof.
Indicates that the windows are not fully closed (with the
engine switch off, and the driver’s door open)
A buzzer also sounds.
→ Close all the windows.
(If equipped)
Indicates that the windows and the moon roof are not
fully closed (with the engine switch off, and the driver’s
door open)
A buzzer also sounds.
→ Close all the windows and the moon roof.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes)

5438-2. Steps to take in an emergency
8
When trouble arises
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Indicates a malfunction in the Drive-Start Control system
A buzzer also sounds.
→ Have the vehicle inspecte d by your Lexus dealer
immediately.
Indicates a malfunction in the Brake Override System A buzzer also sounds.
→ Have the vehicle inspecte d by your Lexus dealer
immediately.
Indicates that engine oil level is low
This message may ap pear if the vehicle is stopped on a
slope. Move the vehicle to a level surface and check to
see if the message disappears.
→ Check the level of engine oil, and add if necessary.
Warning messageDetails/Actions

5448-2. Steps to take in an emergency
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Indicates a malfunction in:
• The automatic headlight leveling system; or
• The AFS (Adaptive Front-lighting System)
(if equipped); or
• The Automatic High Beam system; or
• The LED headlight system
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Indicates that the accelerato r and brake pedal are being
depressed simultaneously
→ Release the accelerator pedal and depress the
brake pedal.
Indicates that the tire in flation pressure is low
→ Check the tire inflation pressure, and adjust to the
appropriate level.
Warning messageDetails/Actions
(Flashes)