Page 631 of 708
6317-2. Steps to take in an emergency
7
When trouble arises
LS460/LS460L_GE (OM50G06E)
Use the mechanical key built in to the electronic keys to operate the
doors. ( P. 145)
On some models: An alarm will sound if the alarm is set when the trunk or doors
are unlocked. ( P. 112)
■Doors
Remove the cover on the
driver’s door handle.
If the electronic key does not operate properly
If communication between the electronic key and vehicle is inter-
rupted ( P. 163) 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 engine can be started by following the procedure
below.
Locking and unlocking the doors, unlocking the trunk and key
linked functions
1
Page 632 of 708
6327-2. Steps to take in an emergency
LS460/LS460L_GE (OM50G06E)
Locks and unlocks the doors
Locks all the doors
Closes the windows and
moon roof*1 (turn and hold)
Unlocks the door*2
Turning the key rearward
unlocks the driver’s door. Turn-
ing the key once again unlocks
the other doors.
Unlocks all doors*3
Opens the windows and
moon roof*1 (turn and hold)
*1: If equipped
*2:For USF40L-AEZGHA,
USF45L-AEZGHA, USF41L-
AEZGHA, USF40L-AEZGHV,
USF41L-AEZGHV and
USF41L-AEZGKV models
*3: Except for USF40L-AEZGHA,
USF45L-AEZGHA, USF41L-
AEZGHA, USF40L-AEZGHV,
USF41L-AEZGHV and
USF41L-AEZGKV models
The model code is indicated on
the manufacturer’s label.
( P. 650)
2
1
2
3
4
Page 634 of 708

6347-2. Steps to take in an emergency
LS460/LS460L_GE (OM50G06E)
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of
the electronic key to the engine
switch.
If any of the doors is opened or closed
after the key was touched to the
switch to start the vehicle, an alarm
will sound to indicate that the start
function cannot detect the key.
Press the engine switch within 10 seconds of the buzzer sounding,
keeping the brake pedal depressed.
In the event that the engine still cannot be started, contact your Lexus
dealer.
■Stopping the engine
Shift the shift lever to P and press the engi ne switch as you normally do when stop-
ping the engine.
■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. 575)
■Alarm (on some models)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set, the
alarm may be triggered.
■Changing engine switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the
engine switch.
The engine does not start and modes will be changed each time the switch is
pressed. ( P. 260)
Starting the engine
1
2
3
Page 636 of 708
6367-2. Steps to take in an emergency
LS460/LS460L_GE (OM50G06E)
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.
Confirm that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depending on the sit-
uation, the alarm may activate and
doors locked. (P. 114)
Open the hood. Remove the engine compartment covers and battery
cover. ( P. 536, 541, 543)
If the vehicle battery is discharged
The following procedures may be used to start the engine if the vehi-
cle’s battery is discharged.
You can also call your Lexus deal er or a qualified repair shop.
1
2
Page 639 of 708

6397-2. Steps to take in an emergency
7
When trouble arises
LS460/LS460L_GE (OM50G06E)
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is
not in use, due to natural discharge and the draining effects of certain electrical
appliances. If the vehicle is left for a long time, the battery may discharge, and the
engine may be unable to start. (The battery recharges automatically during driving.)
■When recharging or replacing the battery
In some cases, it may not be possible to unlock the doors using the smart entry &
start system when the battery is discharged. Use the wireless remote control or the
mechanical key to lock or unlock the doors.
■If the battery is discharged
The information stored in the computer will be deleted.
If the battery is discharged, have the vehicle inspected by your Lexus dealer.
Page 669 of 708
669
8
8-2. Customization
Vehicle specifications
LS460/LS460L_GE (OM50G06E)
Door lock
( P. 186,
631)
Unlocking using a
mechanical key*1
All doors
unlocked in
one step
Driver’s
door
unlocked in
one step, all
doors
unlocked in
two steps
——O
Speed-detecting auto-
matic door lock functionOnOffO—O
Shifting gears to position
other than P locks all
doors.
OffOnO—O
Shifting gears to P unlocks
all doors.*1OffOnO—O
Opening driver’s door
unlocks all doors.*1OnOffO—O
Smart entry
& start
system
( P. 153)
and
wireless
remote
control
( P. 177)
Operation buzzer volume7OffO—O1 to 6
Operational signal
(Emergency flashers)OnOffO—O
Time elapsed before auto-
matic lock function is acti-
vated if door is not opened
after being unlocked
30
seconds
60
seconds
——O
120
seconds
Open door warning
buzzerOnOff——O
ItemFunctionDefault
setting
Custom-
ized setting123
Page 670 of 708
6708-2. Customization
LS460/LS460L_GE (OM50G06E)
Smart entry
& start
system
( P. 153)
Smart entry & start systemOnOffO—O
Smart door unlocking*1All the
doors
Driver’s
door
O—OEach door
Same side
doors
Welcome light illumination
controlOnOff——O
Opening trunk without the
electronic key when all
doors are unlocked
OnOff——O
Wireless
remote
control
( P. 177)
Wireless remote controlOnOff——O
Unlocking operation*1All doors
unlocked in
one step
Driver’s
door
unlocked in
one step, all
doors
unlocked in
two steps
O—O
Trunk unlocking operationOne long
press
One short
press
——OPush twice
Off
Front seats
( P. 198)
Driver’s seat movement
when exiting the vehicleStandard
Off
O—O
Partial
Driver’s seat lumbar sup-
port movement when exit-
ing the vehicle
OnOff——O
ItemFunctionDefault
setting
Custom-
ized setting123
Page 677 of 708
677
8
8-2. Customization
Vehicle specifications
LS460/LS460L_GE (OM50G06E)
Illumination
( P. 447)
Time elapsed before the
interior lights turn off15 seconds
Off
O—O
7.5
seconds
30
seconds
Operation after the engine
switch is turned offOnOff——O
Operation when the doors
are unlockedOnOff——O
Operation when you
approach the vehicle with
the electronic key on your
person
OnOff——O
Footwell and inside door
handle lightsOnOff——O
Shift lever lightOnOff——O
Seat belt buckle illumina-
tion when driver’s door is
opened
OnOff——O
Seat belt buckle illumina-
tion after the engine switch
is turned off
OnOff——O
Instrument panel illumina-
tion method
Choreo-
graphed
illumination
Simple illu-
mination——O
Off
Exterior light controlOnOff——O
Time elapsed before the
outer foot lights turn off15 seconds
Off
O—O
7.5
seconds
30
seconds
ItemFunctionDefault
setting
Custom-
ized setting123