2015 Lexus GS300h Brake

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
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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
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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
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4917-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F00E_(EE)
Indicates that the parking brake system is overheatingA 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 any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Indicates an engine malfunction
A buzzer also sounds.
→ Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner 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

4927-2. Steps to take in an emergency
GS450h_300h_OM_OM30F00E_(EE)
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 any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
Indicates that the engine coolant temperature is too high
A buzzer also sounds.
→ P. 5 5 6
Indicates a malfunction in the vehicle’s charging system.
→Immediately stop the vehicle in a safe place and
contact 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

4937-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F00E_(EE)
(If equipped)
Indicates that the radar sensor is dirty or covered with
iceA buzzer also sounds.
→ Clean the sensor.
(If equipped)
Indicates that the dynamic radar cruise control system
cannot be used temporarily due to bad weather
A buzzer also sounds.
→ Use the radar cruise control system when it
becomes available again.
(If equipped)
Indicates that the radar cruise control system brake con-
trol function is temporarily unavailable
→Depress the brake.
(If equipped)
Indicates that the grille shu tter system cannot operate or
the grille shutter is dirty or covered with ice
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

4947-2. Steps to take in an emergency
GS450h_300h_OM_OM30F00E_(EE)
(Vehicles with entry function)
Indicates a malfunction in the smart entry & start systemA 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 a Blind Spot Monitor sensor or the sur-
rounding area on the bumper is dirty or covered with ice
A buzzer also sounds.
→ Clean the sensor and its surrounding area on the
bumper.
Indicates a malfunction in the cruise control system or
dynamic radar cruise control system (if equipped)
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 any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
(If equipped)
Indicates a malfunction in the dynamic radar cruise con-
trol with full-speed range
Depress the brake pedal.
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
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4977-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F00E_(EE)
Indicates abnormal engine oil pressureA 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.
(If equipped)
Indicates a malfunction in the VGRS (Variable Gear
Ratio Steering)
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 a malfunction in the DRS (Dynamic Rear
Steering) A buzzer also sounds.
→ Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Indicates a malfunction in th e electronically controlled
brake 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.
Continuing to drive in th is condition is dangerous.
Wa r n i n g m e s s a g eDetails/Actions