Page 924 of 1014
8977-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
Attach the air release cap to
the end of the hose.
If the air release cap is not
attached, the sealant may leak and
the vehicle may get dirty.
Store the bottle in the trunk while it is connected to the compres-
sor.
Taking precautions to avoid sudden braking, sudden acceleration
and sharp turns, drive carefully at under 80 km/h (50 mph) to any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional that is less than 100 km (62 miles) away
for tire repair or replacement.
21
22
23
Page 930 of 1014

9037-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
NOTICE
Handling the emergency tire puncture repair kit
The repair kit power source should be 12 V DC suitable for vehicle use.
Do not connect the repair kit to any other source.
If gasoline splatters on the repair kit, the repair kit may deteriorate. Take
care not to allow gasoline to contact it.
Store the emergency tire puncture repair kit in the trunk.
The kit may be thrown around during sudden braking and so forth, dam-
aging the kit.
Store the repair kit in the trunk out of reach of children.
Do not disassemble or modify the repair kit. Do not subject parts such as
the air pressure indicator to impacts. This may cause a malfunction.
To avoid damage to the tire pressure warning valves and transmitters (vehi-
cles with the tire pressure warning system)
When a tire is repaired with liquid sealants, the tire pressure warning valve
and transmitter may not operate properly. If a liquid sealant is used, contact
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional or other qualified service shop as soon as possible.
Make sure to replace the tire pressure warning valve and transmitter when
replacing the tire. (P. 756)
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
1
2
3
4
Page 937 of 1014
9107-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
If the electronic key does not operate properly
Doors
Use the mechanical key
(P. 139) in order to perform
the following operations:
Locks all the doors
Closes the windows and
moon roof (turn and hold)
*
Unlocks all the doors
Opens the windows and
moon roof (turn and hold)
*
*
: This setting must be customized
at any authorized Lexus dealer
or repairer, or another duly qual-
ified and equipped professional.
If communication between the electronic key and vehicle is inter-
rupted (P. 150) or the electronic key cannot be used because the
battery is depleted, the smart entry & start system and wireless
remote control cannot be used. In such cases, the doors and trunk
can be opened and the hybrid system can be started by following
the procedure below.
Locking and unlocking the doors, unlocking the trunk and key
linked functions
1
2
3
4
Page 938 of 1014
911
7 7-2. Steps to take in an emergency
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
Trunk
Turn the mechanical key
clockwise to open.
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side
of the electronic key to the
power switch.
The power switch will turn to ON
mode.
When the smart entry & start sys-
tem is deactivated in customization
setting, the power switch will turn
to ACCESSORY mode.
Firmly depress the brake pedal and check that is shown on
the multi-information display.
Press the power switch.
In the event that the hybrid system still cannot be started, contact
any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Starting the hybrid system
1
2
3
4
Page 940 of 1014

9137-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
If the 12-volt battery is discharged
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your vehicle by following
the steps below.
Open the trunk lid and remove
the 12-volt battery cover.
In the event that the trunk opener
cannot be used, use the mechanical
key to open the trunk. (P. 910)
Connect the jumper cables according to the following procedure:
Positive (+) battery terminal on your vehicle
Positive (+) battery terminal on the second vehicle
Negative (-) battery terminal on the second vehicle
Negative (-) battery terminal on your vehicle
Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the 12-volt battery of your vehicle.
The following procedures may be used to start the hybrid system if
the 12-volt battery is discharged.
You can also call any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
1
2
1
2
3
4
3
Page 971 of 1014
9408-1. Specifications
GS450h_300h_OM_OM30D53E_(EE)
Light bulbs
Light bulbsWTy p e
Exterior
Discharge headlights*35A
Front fog lights*19B
Front turn signal lights21C
Rear turn signal lights21D
Back-up light16D
Outer foot lights5D
Interior
Door courtesy lights5D
Vanity lights8D
Trunk light3.8D
A: D4S discharge bulbs
B: H16 halogen bulbs
C: Wedge base bulbs (amber)
D: Wedge base bulbs (clear)
*: If equipped
Page 977 of 1014
945
8 8-2. Customization
Vehicle specifications
GS450h_300h_OM_OM30D53E_(EE)
Multi-
informa-
tion
display
(P. 1 1 4 )EV driving IndicatorOnOff—O—
Default settingsOffOn—O—
Door lock
(P. 183,
910)
Unlocking on second
key turn
(Allows all doors to be
unlocked by turning the
mechanical key twice in
the driver’s door)Off
(All doors
unlocked
in one
step)
On
(Driver’s
door
unlocked
in one
step, all
doors
unlocked
in two
steps)
O—O
Shift position linked
door unlocking functionOffOnO—O
Driver’s door linked
door unlocking functionOnOffO—O
Locking/unlocking of
the trunk when all doors
are locked/unlocked
OnOff——O
Entry
function
*1
(P. 143)
and
wireless
remote
control
(P. 168)
Operation signal
(Emergency flashers)OnOffO—O
Time elapsed before
automatic door lock
function is activated if a
door is not opened after
being unlocked
30
seconds
60
seconds
——O
120
seconds
Open door reminder
buzzer (When locking
the vehicle)
OnOff——O
ItemFunctionDefault
settingCustom-
ized set-
ting
123