Page 795 of 890
7947-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(U)
■Tr u n k
Turn the mechanical key clock-
wise 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 access system with
push-button start 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 your
Lexus dealer.
Starting the hybrid system
1
2
3
4
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7957-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(U)
7
When trouble arises
■Stopping the hybrid system
Shift the shift lever to P and press the power switch as you normally do when stop-
ping the hybrid system.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted. (→P. 6 9 4 )
■Changing power switch modes
Release the brake pedal and press the power switch in step above.
The hybrid system does not start and modes will be changed each time the switch is
pressed.( →P. 1 9 4 )
■When the electronic key does not work properly
●Make sure that the smart access system with push-button start has not been deac-
tivated in the customization setting. If it is off, turn the function on.
(Customizable features: →P. 8 3 3 )
●Check if battery-saving mode is set. If it is set, cancel the function. ( →P. 129)
3
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796
GS450h_OM_OM30D52U_(U)
7-2. Steps to take in an emergency
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 can-
not be used, use the mechanical key to
open the trunk. ( →P. 7 9 3 )
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
The following procedures may be used to start the hybrid system if the
12-volt battery is discharged.
You can also call your Lexus dealer or a qualified repair shop.
1
2
1
2
3
4
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Page 799 of 890

7987-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(U)
■When recharging or replacing the 12-volt battery
●Make sure that the key is not inside the vehicle when recharging or replacing the
12-volt battery. The key may be locked in the vehicle if the alarm is activated.
(→ P. 8 4 )
●In some cases, it may not be possible to unlock the doors using the smart access
system with push-button start when the 12-volt battery is discharged. Use the wire-
less remote control or the mechanical key to lock or unlock the doors.
●The hybrid system may not start on the first attempt after the 12-volt battery has
recharged but will start normally after the second attempt. This is not a malfunction.
●The power switch mode is memorized by the vehicle. When the 12-volt battery is
reconnected, the system will return to the mode it was in before the 12-volt battery
was discharged. Before disconnecting the 12-volt battery, turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt battery dis-
charged, be especially careful when reconnecting the 12-volt battery.
CAUTION
■Avoiding 12-volt battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the 12-volt battery:
●Make sure each jumper cable is connected to the correct terminal and that it is
not unintentionally in contact with any other than the intended terminal.
●Do not allow the other end of the jumper cable connected to the “+” terminal to
come into contact with any other parts or metal surfaces in the area, such as
brackets or unpainted metal.
●Do not allow the + and - clamps of the jumper cables to come into contact with
each other.
●Do not smoke, use matches, cigarette lighters or allow open flame near the 12-
volt battery.
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836
GS450h_OM_OM30D52U_(U)
8-2. Customization
Multi-infor-
mation
display
(→ P. 9 6 )“EV driving Indicator”“ON”“OFF”—O—
“Default settings”“OFF”“ON”—O—
Door lock
(→ P. 1 3 9 ,
793)
Unlocking on second
key turn
(Allows all doors to be
unlocked by turning the
mechanical key twice
in the driver’s door)
On
(Driver’s door
unlocked in
one step, all doors
unlocked in two steps)
Off
(All doors
unlocked in one step)
O—O
Speed linked door
locking functionOffOnO—O
Shift position linked
door locking functionOnOffO—O
Shift position linked
door unlocking func-
tion
OnOffO—O
Driver’s door linked
door unlocking func-
tion
OffOnO—O
Locking/unlocking of
the trunk when all
doors are locked/
unlocked
OnOff——O
ItemFunctionDefaultsettingCustomized setting123
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838
GS450h_OM_OM30D52U_(U)
8-2. Customization
Wireless
remote
control
(→ P. 1 3 6 )
Wireless remote con-
trolOnOff——O
Unlocking operation
On
(Driver’s door
unlocked in
one step, all doors
unlocked in two steps)
Off
(All doors
unlocked in one step)
O—O
Trunk unlocking opera-
tionPress and
hold (short)
One short press
——OPush twice
Press and hold (long)
Off
Alarm (panic mode)OnOff——O
Front seats
(→ P. 1 5 0 )
Driver’s seat move-
ment when exiting the
vehicle
Standard
Off
O—O
Pa r t i a l
Selecting the door link-
ing driving position
memory with door
unlock operation
Driver’s
doorAll doors——O
Po we r
windows
(→ P. 1 6 7 )
and moon
roof
( → P. 1 7 0 )
Mechanical key linked
operationOffOn——O
Wireless remote con-
trol linked operationOffOn
(Open only)——O
Buzzer sounds if oper-
ated using wireless
remote control
OnOff——O
ItemFunctionDefault settingCustomized setting123
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Page 842 of 890
GS450h_OM_OM30D52U_(U)
8418-2. Customization
8
Vehicle specifications
Illumination
(→ P. 5 9 7 )
Interior lights illumina-
tion controlOnOff——O
Time elapsed before
the interior lights turn
off15
seconds
7. 5
seconds
O—O30
seconds
Operation after the
power switch is turned
off
OnOff——O
Operation when the
doors are unlockedOnOff——O
Operation when you
approach the vehicle
with the electronic key
on your person
OnOff——O
Footwell lightingOnOff——O
Outer foot lightsOnOff——O
Time elapsed before
the outer foot lights
turn off15
seconds
Off
O—O
7. 5
seconds
30
seconds
ItemFunctionDefault settingCustomized setting123
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842
GS450h_OM_OM30D52U_(U)
8-2. Customization
*1: The default setting varies according to countries
*2: U.S.A. only
*3: If equipped
Illumination
(→ P. 5 9 7 )
Enable/disable opera-
tion of the outer foot
lights when you
approach the vehicle
with the electronic key
on your person
OnOff——O
Enable/disable opera-
tion of the outer foot
lights when the doors
are unlocked with the
power door lock switch
OnOff——O
Rear
sunshade
(→ P. 6 2 1 )
Reverse operationOnOff——O
Time elapsed before
the reverse operation
feature activates0.7
seconds
0 second
——O
0.9
seconds
1.2
seconds
Seat belt
reminder
buzzer
( → P. 74 0 )
Speed-linked seat belt
reminder functionOnOff——O
ItemFunctionDefault
settingCustomized setting123
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