key Lexus GS450h 2015 Opening, closing and locking the doors and trunk / LEXUS 2015 GS450H FROM MAR. 2015 PROD. (OM30F70U) Repair Manual

5617-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(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 immedi ately when the battery is depleted. (P. 4 6 0 )
■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. 599)
●Check if battery-saving mode is set. If it is set, cancel the function. ( P. 1 2 9 )
CAUTION
■When using the mechanical key and operating the power windows and moon
roof
Operate the power window or moon roof af ter checking to make sure that there is
no possibility of any passenger having any of their body parts caught in the window
or moon roof.
Also, do not allow children to operate the mechanical key. It is possible for children
and other passengers to get caught in the power window or moon roof.
3

562
GS450h_OM_OM30F70U_(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. 559)
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

5647-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(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 fir st 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 prev ent 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.

GS450h_OM_OM30F70U_(U)
6018-2. Customization
8
Vehicle specifications
Multi-infor-
mation
display
( P. 9 6 )“EV driving Indicator”“ON”“OFF”—O—
“Default settings”“OFF”“ON”—O—
Door lock
( P. 1 3 9 ,
559)
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
Automatic door lock
Shifting the shift lever
to position other than POff
O—O
Ve h i c l e s p e e d is approxi-
mately 12 mph (20 km/h) or higher
Automatic door unlock
Shifting the shift lever to POff
O—ODriver’s door is opened
Locking/unlocking of
the trunk when all
doors are locked/
unlocked
OnOff——O
ItemFunctionDefaultsettingCustomized setting123

GS450h_OM_OM30F70U_(U)
6038-2. Customization
8
Vehicle specifications
Wi re less
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 w e r
windows
( P. 1 6 7 )
and moon
roof
(  P. 171)
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

606
GS450h_OM_OM30F70U_(U)
8-2. Customization
Illumination
( P. 3 6 3 )
Interior lights illumina-
tion controlOnOff——O
Ti m e e l a p s e d b e f o r e
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
Ti m e e l a p s e d b e f o r e
the outer foot lights
turn off15
seconds
Off
O—O
7. 5
seconds
30
seconds
ItemFunctionDefault settingCustomized setting123

GS450h_OM_OM30F70U_(U)
6078-2. Customization
8
Vehicle specifications
*1: The default setting varies according to countries
*2: U.S.A. only
*3:If equipped
*4: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’SMANUAL”.
Illumination
( P. 3 6 3 )
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. 3 8 7 )
Reverse operationOnOff——O
Ti m e e l a p s e d b e f o r e
the reverse operation
feature activates0.7
seconds
0 second
——O
0.9
seconds
1.2
seconds
Seat belt
reminder
buzzer
(  P. 506)
Speed-linked seat belt
reminder functionOnOff——O
ItemFunctionDefault
settingCustomized setting123

628What to do if... (Troubleshooting)
GS450h_OM_OM30F70U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys
can be made by your Lexus dealer. ( P. 121)
●If you lose your electronic keys, the risk of vehicle theft
increases significantly. Contact your Lexus dealer immediately.
( P. 122)
●Is the electronic key battery weak or depleted? ( P. 460)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. ( P. 1 9 4 )
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the elec-
tronic key on your person.
●The function may not operate pr operly due to the condition of
the radio wave. ( P. 130)
If you have a problem, check the following before contacting your
Lexus dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked

629What to do if... (Troubleshooting)
GS450h_OM_OM30F70U_(U)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when
the lock is set. Open the rear door from outside and then
unlock the child-protector lock. ( P. 140)
●The function to prevent the electronic key from being left inside
the trunk will operate and you ca n open the trunk as usual. Take
the key out from the trunk. ( P. 1 2 4 )
The rear door cannot be opened
The trunk lid is closed with the electronic key left inside

630What to do if... (Troubleshooting)
GS450h_OM_OM30F70U_(U)
●Did you press the power switch while firmly depressing the
brake pedal? ( P. 193)
●Is the shift lever in P? ( P. 1 9 6 )
●Is the electronic key anywhere detectable inside the vehicle?
( P. 1 2 6 )
●Is the steering wheel unlocked? ( P. 1 9 7 )
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary
way. ( P. 560)
●Is the 12-volt battery discharged? ( P. 562)
●Is the power switch in ON mode?
If you cannot release the shift lever by depressing the brake
pedal with the power switch in ON mode ( P. 5 5 6 )
●It is locked automatically to prevent theft of the vehicle.
( P. 1 9 6 )
If you think something is wrong
The hybrid system does not start
The shift lever cannot be shifted from P even if you depress the
brake pedal
The steering wheel cannot be turn ed after the hybrid system is
stopped