Page 361 of 432

3617-2. Steps to take in an emergency
LC500_LC500h_OM_OM11405U_(U)
7
When trouble arises
5 Start the engine of the second vehi-
cle. Increase the engine speed
slightly and maintain at that level for
approximately 5 minutes to
recharge the 12-volt battery of your
vehicle.
6 Open and close any of the door of
your vehicle with the engine switch
off.
7 Maintain the engine speed of the
second vehicle and start the engine
of your vehicle by
turning the engine switch
switch> to IGNITION ON mode
.
8 Once the vehicle’s engine
system> has started, remove the
jumper cables in the exact reverse
order from which they were con-
nected.
9 Close the exclusive jump starting
terminal cover, and reinstall the fuse
box cover to tits original position.
Once the engine starts,
have the vehicle inspected at your Lexus
dealer as soon as possible.
■Starting the engine
when the 12-volt battery is discharged
The engine cannot be
started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio sys-
tem while the engine is
stopped.
●Turn off any unnecessary electrical com-
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.
■When the 12-volt batte ry is removed or
discharged
●Information stored in the ECU is cleared.
When the 12-volt battery is depleted,
have the vehicle inspected at your Lexus
dealer.
●Some systems may requ ire initialization.
( P.403)
■When removing the 12-volt battery ter-
minals
When the 12-volt battery terminals are
removed, the information stored in the
ECU is cleared. Before removing the 12-
volt battery terminals, contact your Lexus
dealer.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery
will discharge gradually even when the
vehicle is not in use, due to natural dis-
charge and the draining effects of certain
electrical appliances. If the vehicle is left for
a long time, the 12-volt battery may dis-
charge, and the engine
may be unable to start. (The 12-volt battery
recharges automatically during driving.)
■When recharging or replacing the 12-
volt battery
●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
wireless remote control or the mechani-
cal key to lock or unlock the doors.
●The engine may not start
on the first attempt after the 12-volt bat-
tery has recharged but will start normally
after the second attempt. This is not a
malfunction.
●The engine 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 engine switch off.
If you are unsure wh at mode the engine
switch was in before the
12-volt battery discharged, be especially
careful when reconnecting the 12-volt
battery.
Page 395 of 432
3958-2. Customization
LC500_LC500h_OM_OM11405U_(U)
8
Vehicle specifications
*1: If equipped
*2: BSM function only
■Active rear wing* ( P.224)
*:If equipped
■Door lock ( P.99, 103, 355)
Alert timing for presence of
approaching vehicle (sensitivity)
*2
(Intermediate)
(Early)
—O—(Late)
(Only when in blind
spot)
RCTA buzzer volumeLevel 2Level 1—O—Level 3
FunctionDefault settingCustomized setting
Operation of the active rear wingOffOn—OO
FunctionDefault settingCustomized setting
Unlocking using a mechanical key
Driver’s door
unlocked in one step, both side
doors unlocked in two steps
Both side doors
unlocked in one step
——O
Automatic door lock
Shifting the shift position to
position other than POff
O—OVehicle speed is
approximately 12
mph (20 km/h) or higher
FunctionDefault settingCustomized settingABC
ABC
ABC
Page 396 of 432

3968-2. Customization
LC500_LC500h_OM_OM11405U_(U)
■Smart access system with push-button start and wireless remote control
( P.97, 106)
■Smart access system with push-button start ( P.106)
Automatic door unlockShifting the shift
position to POff
O—ODriver’s door is opened
Locking/unlocking of the trunk
when both side doors are
locked/unlocked
OnOff——O
Time elapsed before the door lock
indicator lights turn off30 seconds
1 minute
——O10 minutes
20 minutes
FunctionDefault settingCustomized setting
Operating signal (Buzzers)5OffO—O1 to 7
Operation signal (Emergency
flashers)OnOffO—O
Time elapsed before automatic
door lock function is activated if
door is not open ed after being
unlocked
60 seconds
Off
O—O30 seconds
120 seconds
Open door warning buzzerOnOff——O
FunctionDefault settingCustomized setting
Smart access system with push-
button startOnOff——O
Smart door unlockingDriver’s doorBoth side doorsO—O
Number of consecutive door lock
operations2 timesAs many as desired——O
FunctionDefault settingCustomized settingABC
ABC
ABC
Page 397 of 432
3978-2. Customization
LC500_LC500h_OM_OM11405U_(U)
8
Vehicle specifications
■Wireless remote control ( P.97)
■Driving position memory ( P.116)
■Steering wheel ( P.121)
FunctionDefault settingCustomized setting
Wireless remote controlOnOffO—O
Unlocking operation
Driver’s door
unlocked in one step, both side
doors unlocked in two steps
Both side doors
unlocked in one step
O—O
Trunk unlocking operationPress and hold (short)
One short press
——O
Push twice
Press and hold (long)
Off
Alarm (panic mode)OnOff——O
Reservation lockOnOffO—O
FunctionDefault settingCustomized setting
Selecting the door linking driving
position memory with door unlock
operation
Driver’s doorBoth side doors——O
FunctionDefault settingCustomized setting
Auto tilt away functiontilt only
telescopic only
O—Otilt & telescopic
Off
ABC
ABC
ABC
Page 398 of 432

3988-2. Customization
LC500_LC500h_OM_OM11405U_(U)
■Outside rear view mirrors (P.123)
■Power windows ( P.125)
■Turn signal lever ( P.161)
■Automatic light control system ( P.167)
FunctionDefault settingCustomized setting
Automatic mirror folding and
extending operationLinked to the
locking/unlock- ing of the doorsOff
——OLinked to operation
of the engine switch
Linked mirror function when
reversingOnOff——O
FunctionDefault settingCustomized setting
Mechanical key linked operationOffOn——O
Wireless remote control linked
operationOffOn
(Open only)——O
Wireless remote control linked
operation signal (buzzer)OnOff——O
FunctionDefault settingCustomized setting
The number of times the turn signal
lights flash automatically when the
turn signal lever is moved to the
first position during a lane change
3
5
——O7
Off
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2O—O
Time elapsed before headlights
automatically turn off after doors
are closed
30 seconds
Off
O—O60 seconds
90 seconds
Windshield wiper linked headlight
illuminationOnOff——O
ABC
ABC
ABC
ABC
Page 400 of 432

4008-2. Customization
LC500_LC500h_OM_OM11405U_(U)
■Rain-sensing windshield wipers (P.172)
■Reverse warning buzzer ( P.150, 156)
■Seat belt reminder buzzer ( P.339)
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
Door trim ornament lightsOnOff——O
Time elapsed before the outside
door handle lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
Operation of the outside door han-
dle lights when the doors are
unlocked
OnOff——O
Operation of the outside door han-
dle lights when a door is openedOnOff——O
Fading out of the outside door han-
dle lights when they turn offLongShort——O
FunctionDefault settingCustomized setting
Wiper operation when the wiper
switch is in the “AUTO” positionRain-sensing
operation
Intermittent opera-
tion linked to vehicle speed (with interval adjuster)
——O
FunctionDefault settingCustomized setting
Signal (buzzer) when the shift posi-
tion is in RIntermittentSingle——O
FunctionDefault settingCustomized setting
Speed-linked seat belt reminder
functionOnOff——O
FunctionDefault settingCustomized settingABC
ABC
ABC
ABC
Page 402 of 432
4028-2. Customization
LC500_LC500h_OM_OM11405U_(U)
■Vehicle customization
●When the Smart access system with
push-button start is off, the entry unlock
function cannot be customized.
●When the doors remain closed after
unlocking the doors and the timer acti-
vated automatic door lock function acti-
vates, signals will be generated in
accordance with the operation buzzer
volume and operational signal (Emer-
gency flashers) function setting.
●Some settings can be changed using a
switch or the audio system screen. If a
setting is changed using a switch, the
changed setting will not be reflected on
the audio system screen until the engine
switch is turned off and
then to IGNITION ON mode
mode>.
Chassis control in custom modeNormalSportO——Comfort
Air conditioning operation in cus-
tom modeNormalEcoO——
FunctionDefault settingCustomized settingABC
Page 418 of 432

418What to do if... (Troubleshooting)
LC500_LC500h_OM_OM11405U_(U)
1-1.What to do if... (Troubleshooting)What to do if... (Troubleshooting)
If you lose your mechanical keys,
new genuine mechanical keys can
be made by your Lexus dealer.
( P.354)
If you lose your electronic keys, the
risk of vehicle theft increases signifi-
cantly. Contact your Lexus dealer
immediately. ( P.354)
Is the electronic key battery weak or
depleted? ( P.318)
Is the engine switch
in IGNITION ON mode
mode>?
When locking the doors, turn the engine
switch off. ( P.142, 146)
Is the electronic key left inside the
vehicle?
When locking the doors, make sure that
you have the electronic key on your per-
son.
The function may not operate prop-
erly due to the condition of the radio wave. (
P.108)
The function to prevent the elec-
tronic key from being left inside the
trunk will operate and you can open
the trunk as usual. Take the key out
from the trunk. ( P.105)
Did you press the engine switch
while firmly
depressing the brake pedal?
( P.140, 143)
Is the shift position in P? ( P.149,
155)
Is the electronic key anywhere
detectable inside the vehicle?
( P.107)
Is the steering wheel unlocked?
( P.141, 144)
Is the electronic key battery weak or
depleted?
In this case, the engine can
be started in a temporary way. ( P.356)
Is the 12-volt battery discharged?
( P.357)
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
The trunk lid is closed with the
electronic key left inside
If you think something is wrong
The engine does
not start
The steering wheel cannot be
turned after the engine
system> is stopped