Lexus GS300h 2015 Owner's Manual

4817-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F00E_(EE)
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pressure warning
system may not operate properly.

4827-2. Steps to take in an emergency
GS450h_300h_OM_OM30F00E_(EE)
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 again after the following actions have been
performed, contact any authorized Lexu s dealer or repairer, or another duly
qualified and equipped professional.
If a warning is shown on the multi-information display, stay calm and perform
the following actions:
XExcept F SPORT modelsXF SPORT models
Warning message and warning buzzer list
1
2
Wa r n i n g m e s s a g eDetails/Actions
(If equipped)
Indicates that there is a high possibility of a frontal colli-
sion, or that the pre-crash br aking function is operating
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.

4837-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F00E_(EE)
(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) or LDA [Lane
Departure Alert with steering control] system are oper-
ating)
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 inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Continuing to drive the vehicle may be dangerous.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)

4847-2. Steps to take in an emergency
GS450h_300h_OM_OM30F00E_(EE)
Indicates a malfunction in the gasoline engine or that the
shift position is in N for a long period of time A buzzer also sounds.
→ Release the accelerator pedal and change the shift
position to D, S or R.
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 the hybrid system
A buzzer also sounds.
→ Immediately stop the vehicle in a safe place and
contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
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 5 km/h (3 mph),
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.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)
(Flashes)

4857-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F00E_(EE)
(If equipped)
Indicates a malfunction in the Lexus parking assistAll assist-sensors flash.
A buzzer also sounds.
→ Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
(If equipped)
Indicates that Lexus parking assist-sensor is dirty or cov-
ered with ice
A buzzer also sounds.
→ Clean the sensor.
Indicates an attempt was made to release the parking
brake with a door open or the front passenger’s seat belt
unfastened
A buzzer also sounds.
→ Close all doors and fasten the front passenger’s seat
belt before releasing the parking brake.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)

4867-2. Steps to take in an emergency
GS450h_300h_OM_OM30F00E_(EE)
Indicates that the driver’s door was opened with the shift
position in any position other than PA buzzer also sounds.
→ Shift the shift position to P.
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
position to D, S or R.
Indicates that the accelerator pedal is depressed while
the shift lever is in N
A buzzer also sounds.
→ Release the accelerator pedal and shift the shift
position to D, S or R.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)
(Flashes)
(Flashes)

4877-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F00E_(EE)
Indicates that the hybrid battery (traction battery) power
has dropped because a long period of time has elapsed
after shifting the shift lever to NA buzzer also sounds.
→ Restart the hybrid system when starting the vehicle.
Indicates a malfunction in the hybrid system
Depending on the malfunctio n, troubleshooting meth-
ods may also be displayed.
A buzzer also sounds.
→ Immediately stop the vehicle in a safe place and
contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
Indicates that the 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 battery cannot be
charged with 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
dealer or repairer, or another duly qualified and
equipped professional.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)
(Flashes)

4887-2. Steps to take in an emergency
GS450h_300h_OM_OM30F00E_(EE)
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 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 inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
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.
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
any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)
(Flashes)
(Flashes) (Flashes)

4897-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F00E_(EE)
Indicates an attempt was made to release the parking
brake without depressing the brake pedalA 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 acceler-
ator 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 S while on a slippery surface
The vehicle will not shift down from 2nd gear.
A buzzer also sounds.
→ Drive the vehicle in 2nd gear or higher.
(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
→ Firmly hold the steering wheel.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)

4907-2. Steps to take in an emergency
GS450h_300h_OM_OM30F00E_(EE)
(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
→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 de termining that the driver
does not have their hands on the steering wheel while
the steering control function is on
→ 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
A buzzer also sounds.
→ Firmly hold the steering wheel.
Wa r n i n g m e s s a g eDetails/Actions