Page 867 of 1014
8407-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
Indicates a malfunction in:
• The regenerative brake system;
• The electronically controlled brake system;
or
• The electric parking brake
A buzzer also sounds.
Wa r n i n g m e s s a g eDetails
Page 872 of 1014
8457-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
Indicates a malfunction in the brake hold system
Depress the brake pedal.
Indicates a malfunction in the parking brake sys-
tem
Indicates a malfunction in the parking brake sys-
tem
Indicates a malfunction in the EPS (Electric
Power Steering) system
Wa r n i n g m e s s a g eDetails
(Flashes)
Page 877 of 1014
8507-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
Indicates that the park-
ing brake is still
engaged
If the vehicle reaches
a speed of 5 km/h
(3 mph),
flashes and a buzzer
sounds to indicate
that the parking
brake is still
engaged.
Release the parking
brake.
Indicates that the park-
ing brake system has
overheatedWait until the system
cools down.
Indicates that the brake
hold system is not hold
the vehicle when the
vehicle is on a steep
incline
Use the brake hold sys-
tem when it becomes
available.
Indicates that the brake
hold system is unable
to cancel the brake
hold function
Depress the brake
pedal.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashes)
(Flashes)
(Flashes)
Page 878 of 1014
8517-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
Indicates that the brake
hold system is not
available
The reason the brake
hold system is not
available may be dis-
played.• Close the driver’s
door.
• Fasten the driver’s
seat belt.
• Close the trunk and
hood.
Indicates that the brake
hold system is unable
to continue brake hold
function
The reason the brake
hold system is not
continue may be dis-
played.
• Depress the brake
pedal.
• Close the driver’s
door.
• Fasten the driver’s
seat belt.
Indicates that the park-
ing brake is set auto-
matically while the
brake hold system is
holding the brakes
Release the parking
brake.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashes)
Page 881 of 1014
8547-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
Indicates that Lexus
parking assist-sensor is
dirty or covered with
ice
Clean the sensor.
(If equipped)
Indicates that the radar
sensor is dirty or cov-
ered with ice
Clean the sensor.
(If equipped)
Indicates that the radar
cruise control system is
unable to judge vehi-
cle-to-vehicle distance
• Turn off the snow
mode.
• If the windshield
wipers are on, turn
them off or set them
to a mode other than
AUTO or high speed
wiper operation.
(If equipped)
Indicates that your
vehicle is nearing the
vehicle ahead (in vehi-
cle-to-vehicle distance
mode)
At the same time,
will appear on
the head-up display
(the image flashes).
Slow the vehicle by
applying the brakes.
Page 898 of 1014
8717-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
If you have a flat tire (vehicles with a spare tire)
Stop the vehicle on a hard, flat surface.
Set the parking brake.
Shift the shift lever to P.
Stop the hybrid system.
Turn on the emergency flashers. (P. 820)
Remove the flat tire and replace it with the spare tire provided.
For details about tires: P. 754
CAUTION
If you have a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the
wheel beyond repair, which could result in an accident.
Before jacking up the vehicle
Page 899 of 1014
8727-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
Location of the spare tire, jack and tools
Jack handle
Parking brake release tool
Screwdriver
Towing eyeletWheel nut wrench
Spare tire
Jack1
2
3
4
5
6
7
Page 910 of 1014

8837-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
When using the compact spare tire
Remember that the compact spare tire provided is specifically designed
for use with your vehicle. Do not use your compact spare tire on another
vehicle.
Do not use more than one compact spare tire simultaneously.
Replace the compact spare tire with a standard tire as soon as possible.
Avoid sudden acceleration, abrupt steering, sudden braking and shifting
operations that cause sudden engine braking.
When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems
may not operate correctly:
• ABS & Brake assist
•VSC
•TRC
• Cruise control (if equipped)
• Dynamic radar cruise control
(if equipped)
• PCS (if equipped)
•EPS
• AFS (if equipped)
• LDH (if equipped)• DRS (if equipped)
• AVS (if equipped)
• LKA (Lane-Keeping Assist)
(if equipped)
• VGRS (if equipped)
• Lexus parking assist monitor
(if equipped)
• Lexus parking assist-sensor
(if equipped)
• Navigation system (if equipped)