Page 912 of 1014
8857-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
If you have a flat tire (vehicles without a spare tire)
Stop the vehicle in a safe place 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)
Your vehicle is equipped with an emergency tire puncture repair
kit.
A puncture caused by a nail or screw passing through the tire tread
can be repaired temporarily with the emergency tire puncture
repair kit.
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.
Driving with a flat tire may cause a circumferential groove on the side wall.
In such a case, the tire may explode when using a repair kit.
Before repairing the vehicle
Page 913 of 1014
8867-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
*: Use of the jack (P. 876)
Location of the emergency tire puncture repair kit, jack and
tools
Jack handle
Emergency tire puncture
repair kit
Parking brake release toolScrewdriver
Towing eyelet
Wheel nut wrench
Jack
*
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Page 932 of 1014

905
7 7-2. Steps to take in an emergency
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
One of the following may be the cause of the problem:
One or both of the 12-volt battery terminals may be discon-
nected.
The 12-volt battery may be discharged. (P. 913)
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional if the problem cannot be repaired, or if repair
procedures are unknown.
When the hybrid system does not start, the following steps can be
used as an interim measure to start the hybrid system if the power
switch is functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Have the vehicle inspected by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
The interior lights and headlights do not turn on, or the horn
does not sound.
Emergency start function
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Page 933 of 1014
9067-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
If the shift lever cannot be shifted from P
Set the parking brake.
Turn the power switch to ACCESSORY mode.
Depress the brake pedal.
Pry the cover up with a flat-
head screwdriver or equivalent
tool.
To prevent damage to the cover,
cover the tip of the screwdriver
with a rag.
Press the shift lock override
button.
The shift lever can be shifted while
the button is pressed.
If the shift lever cannot be shifted with your foot on the brake
pedal, there may be a problem with the shift lock system (a system
to prevent accidental operation of the shift lever). Have the vehicle
inspected by any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional immediately.
The following steps may be used as an emergency measure to
ensure that the shift lever can be shifted:
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Page 934 of 1014
9077-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
If the parking brake cannot be released
Shift the shift lever to P.
Turn the power switch off.
Check that the parking brake indicator is off.
Chock the tires.
In the event that the 12-volt battery is discharged or switch opera-
tion does not release the parking brake, the parking brake can be
released manually using the procedure below. This procedure
should be performed only if necessary, such as in an emergency.
If the switch cannot be operated even when the 12-volt battery is
normal, the parking brake system may be malfunctioning. Have the
vehicle inspected by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional immediately.
Before releasing the parking brake manually
Page 935 of 1014
9087-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
Take out the parking brake
release tool and the screw-
driver from the trunk. (P.
872, 886)
Fit the parking brake release tool
into the screwdriver handle.
Vehicles with a spare tire: Take out the spare tire. (P. 875)
Vehicles without a spare tire: Remove the center auxiliary box.
(P. 888)
Remove the plug.
Insert the tool and press it
down firmly while turning it
counterclockwise until it
stops.
Releasing the parking brake manually
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Page 936 of 1014
9097-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
Manual operation of the parking brake
The parking brake cannot be set manually.
CAUTION
When releasing the parking brake manually
Shift the shift lever to P, turn the power switch off and chock the tires.
Failure to do so may cause the vehicle to move, resulting in an accident.
Turn the power switch off and check that the parking brake indicator is
off. Failure to do so may cause the system to operate and turn the inserted
parking brake release tool, resulting in an injury.
Page 953 of 1014
9267-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
If the vehicle becomes stuck
Stop the hybrid system. Set the parking brake and shift the shift
lever to P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other material under the rear wheels
to help provide traction.
Restart the hybrid system.
Shift the shift lever to D or R and release the parking brake.
Then, while exercising caution, depress the accelerator pedal.
When it is difficult to free the vehicle
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Press to turn off TRC. (P. 400)
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