2018 Lexus GS F Owner's Manuals

4557-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
7
When trouble arises
Indicates an attempt was made to engage the parking
brake while driving 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 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.
(If equipped)
Indicates that LKA (Lane-Ke eping Assist) system cannot
be used due to the vehicle speed being too high
→ Slow down.
Warning messageDetails/Actions
(U.S.A.) (Canada)

4567-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
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 onA buzzer also sounds.
→ Turn the lights off.
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.
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.
Indicates a malfunction in the brake hold system
A buzzer also sounds.
→ Have the vehicle inspecte d by your Lexus dealer
immediately.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes)
(Flashes)

4577-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
7
When trouble arises
Indicates that the brake hold system cannot be turned off A buzzer also sounds.
→ Depress the brake pedal.
Indicates that the brake hold system is not available
The reason the brake hold system is not available may
be displayed.
A buzzer also sounds.
→ Close the driver’s door.
→ Fasten the driver’s seat belt.
Indicates that the brake hold system is unable to con-
tinue brake hold function
The reason the brake hold system is not continue may
be displayed.
A buzzer also sounds.
→ Depress the brake pedal.
→ Close the driver’s door.
→ Fasten the driver’s seat belt.
Warning messageDetails/Actions

4587-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
Indicates that the parking brake is set automatically while
the brake hold system is holding the brakesA buzzer also sounds.
→ Release the parking brake.
(AWD models only)
Indicates the AWD sy stem has overheated
A buzzer also sounds.
→ Reduce the vehicle speed or stop the vehicle in a
safe place.
(AWD models only)
Indicates the AWD sy stem has overheated
A buzzer also sounds.
→ Reduce the vehicle speed or stop the vehicle in a
safe place.
(GS F only)
Indicates a malfunction in the TVD (Torque Vectoring
Differential) system
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Warning messageDetails/Actions
(Flashes)
(Flashes)

4597-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
7
When trouble arises
(GS F only)
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.
Indicates a malfunction in the brake override system A buzzer also sounds.
→ Have the vehicle inspecte d by your Lexus dealer
immediately.
Warning messageDetails/Actions

4607-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
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.
A buzzer also sounds.
→ Check the level of engine oil, and add if necessary.
Indicates a malfunction in:
• The Automatic High Beam system (if equipped);
• The AFS (Adaptive Front-lighting System) (if
equipped); or
• The LED headlight system
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
(GS F for Canada only)
Indicates that the brake pads are worn out
A buzzer also sounds
→ Have the vehicle inspected visually by your Lexus
dealer.
Warning messageDetails/Actions

4617-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
7
When trouble arises
(GS F for U.S.A. only)
Indicates that the brake pads are worn out A buzzer also sounds
→ Have the vehicle inspected visually by your Lexus
dealer.
Indicates that the accelerator and brake pedals are
being depressed simultaneously, and the brake override
system is operating.
→ Release the accelerator pedal and depress the
brake pedal. (→ P. 183)
Indicates that the tire in flation pressure is low
→ Check the tire inflation pressure, and adjust to the
appropriate level.
Warning messageDetails/Actions
(Flashes)

4627-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
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 warning
indicator flashes for 1 minute then illuminates, there
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 driv ing. If the tire pressure is
still not displayed even after repeating this process
several times, have the vehicle inspected at your
Lexus dealer.
Indicates that the washer fluid level is low
→ Add washer fluid.
Except F SPORT models of GS350/GS300, and GS F:
Indicates that remaining fuel is approximately 2.6 gal.
(10.0 L, 2.2 Imp.gal.) or less
F SPORT models of GS350/GS300: Indicates remain-
ing fuel is approximately 2.6 gal. (9.9 L, 2.2 Imp.gal.) or
less
→ Refuel the vehicle.
Warning messageDetails/Actions