warning LEXUS RC350 2018 Owners Manual

4697-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
7
When trouble arises
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. 295) 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

4707-2. Steps to take in an emergency
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
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. 260
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

4717-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
7
When trouble arises
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

4727-2. Steps to take in an emergency
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
Indicates that the automatic transmission fluid tempera-
ture is too high
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
(If equipped)
Indicates a malfunction in the VGRS (Variable Gear
Ratio Steering) system A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
(If equipped)
Indicates that the active re ar wing switch was pressed
when the active rear wing was disabled
 Enable the active rear wing ( P. 130) then press
the active rear wing switch.
(AWD models)
Indicates a malfunctio n in the AWD system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Indicates that LDA (Lane Departure Alert with steering
control) system cannot be used due to the vehicle speed
being too high
Slow down.
Warning messageDetails/Actions

4737-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
7
When trouble arises
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.
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.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)

4747-2. Steps to take in an emergency
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
(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.
(If equipped)
Indicates a malfunction in the TVD (Torque Vectoring
Differential) system A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
(If equipped)
Indicates that the TVD (Torque Vectoring Differential)
system has overheated
This message may be disp layed when driving under
extremely high load conditions such as the following:
• Continuously driving at high speeds or through
sharp turns
• If either right or left rear tire loses traction and spins
continuously
A buzzer also sounds.
 Drive the vehicle for a while, while avoiding
extremely high load conditions.
Indicates a malfunction in th e Drive-Start Control system
A buzzer also sounds.
 Have the vehicle inspecte d by your Lexus dealer
immediately.
Warning messageDetails/Actions
(Flashes)

4757-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
7
When trouble arises
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.
RC F
Indicates a malfunction in:
• The automatic headlight leveling system; or
• The Automatic High Beam system; or
• The LED headlight system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Warning messageDetails/Actions

4767-2. Steps to take in an emergency
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
RC350/RC300
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 brake pads are worn out
A buzzer also sounds.
 Have the vehicle inspected visually by your Lexus
dealer.
Warning messageDetails/Actions
(U.S.A.)
(If equipped) (Canada)

4777-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
7
When trouble arises
Indicates that the accelerator and brake pedals are
being depressed simultaneously, and the Brake Over-
ride System is operating.
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)

4787-2. Steps to take in an emergency
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
Indicates a malfunction in the tire pressure warning sys-
tem
Stop the vehicle in a safe place and turn the engine
switch off then on again.
If the tire pressure warn ing indicator flashes for 1
minute then illuminates, ther e is a malfunction in the
system. Have the vehicle inspected at your Lexus
dealer.
Indicates that the tire position information cannot be rec-
ognized
 Drive for a short while an d check if the display
updates.
If the radio wave conditions improve, the display
may return to normal. If th e tire pressure is still not
displayed after driving for several minutes, stop the
vehicle in a safe place, turn the engine switch off
then on again, and start driving.
If the tire pressure is st ill not displayed even after
repeating this process seve ral times, have the vehi-
cle inspected at your Lexus dealer.
(If equipped)
Indicates a malfunction in the DRS (Dynamic Rear Steer-
ing) system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
(If equipped)
Indicates a malfunction in the active rear wing
Have the vehicle inspected by your Lexus dealer.
Indicates that the washer fluid level is low
Add washer fluid.
Warning messageDetails/Actions