2019 Lexus GS F Owner's Manuals

441
GS F_OM_OM30G90U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If a warning message is displayed
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 light comes on ag ain after the following actions have been
performed, contact your Lexus dealer.
If a warning is shown on the multi-info rmation display, stay calm and perform
the following actions:
GS350/GS300
(except F SPORT models)GS350/GS300
(F SPORT models)
GS F
1
2

4427-2. Steps to take in an emergency
GS F_OM_OM30G90U_(U)
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 At the same time, will appear on the head-up
display.
A buzzer also sounds.
 Avoid the collision by decelerating using the brakes
or taking other evasive actions.
(If equipped)
Indicates that your vehicle is nearing the vehicle ahead
(in vehicle-to-vehicle distance control mode)
At the same time, will appear on the head-up dis-
play (the image flashes).
A buzzer also sounds.
 Slow the vehicle by applying the brakes.
(If equipped)
Indicates that the vehicle has deviated from the lane
(while the LKA [Lane-Keeping Assist] system is operat-
ing) The lane line on the side the vehicle has deviated from
flashes in amber.
At the same time, will appear on the head-up
display (the image flashes).
A buzzer also sounds.
 Check around the vehicle and back to inside of the
lane lines.
Indicates a malfunctio n in the brake system
A buzzer also sounds.
 Have the vehicle inspecte d by your Lexus dealer
immediately.
Continuing to drive the vehicle may be dangerous.
(U.S.A.) (Canada) (Flashes)

4437-2. Steps to take in an emergency
GS F_OM_OM30G90U_(U)
7
When trouble arises
Indicates that hood or one or more of the doors or trunk
are not fully closed
The system also indicates which hood or doors or
trunk are not fully closed.
If the vehicle reaches a speed of 3 mph (5 km/h),
flashes and a buzzer sounds to indicate that
the hood or door(s) or trunk are not yet fully closed.
 Make sure that hood or all doors or trunk are
closed.
(If equipped)
Indicates a malfunction in the intuitive parking assist
All assist-sensors flash.
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
(If equipped)
Indicates that intuitive parkin g assist sensor is dirty or
covered with ice A buzzer also sounds.
 Clean the sensor.
Warning messageDetails/Actions
(GS350/GS300) (GS F)
(GS350/GS300) (GS F)

4447-2. Steps to take in an emergency
GS F_OM_OM30G90U_(U)
Indicates an attempt was made to release the parking
brake with a door open or the front passenger’s seat belt
unfastenedA buzzer also sounds.
 Close all doors and fasten the front passenger’s seat
belt before releasin g the parking brake.
Indicates that the driver’s door was opened with the shift
position in any position other than P
A buzzer also sounds.
 Shift the shift position to P.
Indicates a malfunction in th e EPS (Electric Power Steer-
ing) system A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Warning messageDetails/Actions
(Flashes)
(Flashes)

4457-2. Steps to take in an emergency
GS F_OM_OM30G90U_(U)
7
When trouble arises
Indicates that the vehicle is being driven at 3 mph (5 km/h)
or more with the parking brake still engaged. A buzzer also sounds.
 Release the parking brake.
Indicates that the parking brake is engaged with the shift
position not in P
A buzzer also sounds.
 Change the shift position to P.
Indicates a malfunction in the brake hold system
A buzzer also sounds.
 Depress the brake pedal to turn off the brake hold
system.
Have the vehicle inspecte d by your Lexus dealer
immediately.
Indicates that the brake hold system is turned on while on
a steep slope A buzzer also sounds.
 Do not use only the brake hold system on steep
slopes. Be sure to also depress the brake pedal.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)

4467-2. Steps to take in an emergency
GS F_OM_OM30G90U_(U)
Indicates a malfunction in the parking brake system
A buzzer also sounds.
 Press the parking brake switch. If the warning mes-
sage is still displayed, have the vehicle inspected by
your Lexus dealer.
Indicates an attempt was made to release the parking
brake without depressing the brake pedal
A buzzer also sounds.
 Release the parking brake while depressing the
brake pedal.
Indicates that the shift position was changed and Drive-
Start Control was operated while depressing the accel-
erator pedal A buzzer also sounds.
 Momentarily release the accelerator pedal.
Indicates an attempt was made to shift to 1st gear with
the shift position in M while on a slippery surface
The vehicle will not shift down from 2nd gear.
A buzzer also sounds.
 The vehicle will not shift down from 2nd gear.
Warning messageDetails/Actions
(Flashes)
(U.S.A.) (Flashes)
(Canada) (Flashes)
(Flashes)

4477-2. Steps to take in an emergency
GS F_OM_OM30G90U_(U)
7
When trouble arises
(If equipped)
Indicates that the LKA (Lane- Keeping Assist) system has
determined that the driver does not have their hands on
the steering wheel while the steering control function is
on If the driver operates the steering wheel only a small
amount, the system may be unable to detect the steer-
ing wheel operations and this warning may be dis-
played.
A buzzer also sounds.
 Firmly hold the steering wheel.
(If equipped)
Indicates that steering control function is temporarily
canceled due to the LKA (Lane-Keeping Assist) system
determining that the driver does not have their hands on
the steering wheel while the steering control function is
on
If the driver operates the steering wheel only a small
amount, the system may be unable to detect the steer-
ing wheel operations and this warning may be dis-
played.
 Firmly hold the steering wheel.
Indicates that the parking brake system is overheating
A buzzer also sounds.
 Do not use the parking brake until the message dis-
appears.
Indicates an engine malfunction
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Warning messageDetails/Actions
(U.S.A.) (Canada)
(U.S.A.) (Canada)

4487-2. Steps to take in an emergency
GS F_OM_OM30G90U_(U)
Indicates an engine malfunctionA buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Indicates an engine malfunction
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupa nt classification system;
or,
• The seat belt pretensioner system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Indicates a malfunction in:
• The ABS; or
• The brake assist system
A buzzer also sounds.
 Immediately stop the vehicle in a safe place and
contact your Lexus dealer. Continuing to drive the
vehicle may be dangerous.
Warning messageDetails/Actions
(U.S.A.) (Canada)
(U.S.A.) (Canada)