Page 357 of 432

3577-2. Steps to take in an emergency
7
When trouble arises
will turn to ACCESSORY mode.
3Firmly depress the brake pedal and
check that is shown on the
multi-information display.
4 Press the engine switch
switch>.
In the event that the engine
tem> still cannot be started, contact
your Lexus dealer.
■Stopping the engine
Set the parking brake, shift the shift position
to P and press the engine switch
switch> as you normally do when stopping
the engine .
■Electronic key battery
As the above procedure is a temporary
measure, it is recomme nded that the elec-
tronic key battery be replaced immediately
when the battery is depleted. ( P.318)
■Changing engine switch
modes
Release the brake pedal and press the
engine switch in step 3
above.
The engine does not start
and modes will be changed each time the
switch is pressed. ( P.148, 152)
Use the mechanical key ( P.104) in
order to perform th e following opera-
tions:
■Locking and unlocking the doors
P.355
■Opening the trunk
1 Slide the rear passengers’ seat
belts towards the outside.
2 Insert your fingers at the positions
marked and pull towards you to
If the 12-volt battery is dis-
charged
The following procedures may be
used to start the engine
tem> or opening the doors, trunk or
glove box if the 12-volt battery is
discharged.
You can also call your Lexus dealer
or a qualified repair shop.
Locking and unlocking the doors
and opening the trunk
A
Page 358 of 432

3587-2. Steps to take in an emergency
remove the cover in the center of
the rear seat.
3 Insert the mechanical key into the
cylinder and turn it clockwise to
open. The glove box can be opened by per-
forming the following
operations after
unlocking the doors.
If the glove box is locked, unlock it with the
mechanical key. ( P.260)
1 Remove the cover using a flathead
screwdriver.
To prevent damage to the cover, cover the
tip of the screwdriver with a rag.
2Push the flathead screwdriver into
the part shown in the illustration to
open the glove box.
■After opening the glove box
The glove box can be opened normally by
closing the glove box after restarting the
engine .
If you have a set of jumper (or booster)
WARNING
■After unlocking the trunk
Make sure to put back the cover to the
center of the rear seat. Failure to do so
may cause an accident.
NOTICE
■When installing the cover in the cen-
ter of the rear seat
Make sure that the seat belts are not
caught in the cover. Failure to do so may
cause damage to the cover installation
clip and make it impossible to install the
cover.
Opening the glove box
Restarting the engine
system>
Page 359 of 432
3597-2. Steps to take in an emergency
7
When trouble arises
cables and a second vehicle with a 12-
volt battery, you can jump start your
vehicle using the following procedure.
1Confirm that the electronic key
(including the card key) is being
carried.
When connecting the jumper (or booster)
cables, depending on the situation, the
alarm may activate and doors locked.
( P.72)
2 Open the hood ( P.290) and
open the fuse box cover.
Push the tab in and lift the lid off.
LC500
LC500h
3 Open the exclusive jump starting
terminal cover.
LC500
LC500h
4 Connect a positive jumper cable clamp to on your vehicle and connect the
clamp on the other end of the positive cable to on the second vehicle.
Then, connect a negative cable clamp to on the second vehicle and con-
nect the clamp at the other end of the negative cable to .
A
B
C
D
Page 361 of 432

3617-2. Steps to take in an emergency
7
When trouble arises
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 battery 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 require 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.
●If the 12-volt battery discharges, it may
not be possible to shift the shift position to
other positions. In this case, the vehicle
cannot be towed without lifting both rear
wheels because the re ar wheels will be
locked. ( P.330)
■When replacing the 12-volt battery
●Use a Central Degassing type 12-volt
battery (European Regulations).
●Type A*1: Use a 12-volt battery that the
case size is same as the previous one
(LN4), 20 hour rate capacity (20HR) is
equivalent (80Ah) or greater, and per-
formance rating (CCA) is equivalent
(685A) or greater.
Page 377 of 432

3778-1. Specifications
8
Vehicle specifications
■12-volt battery
LC500
LC500h
*: The fluid capacity is a reference quantity.If replacement is necessary, contact your Lexus dealer.
Electrical system
Open voltage at 68°F (20°C):12.3 V or higher
(Turn the engine switch off and turn on the headlights
for 20 to 30 seconds.)
Charging rates
Quick charge
Slow charge
15 A max.
5 A max.
Open voltage at 68°F (20°C):12.0 V or higher
(Turn the power switch off and turn on the high beam
headlights for 30 seconds.)
Charging rates
Quick charge
Slow charge
15 A max.
5 A max.
Automatic transmission (LC500)
Fluid capacity*9.3 qt. (8.8 L, 7.7 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration in
shift quality, locking up of your transmission accompanied by vibration, and ultimately
damage the transmission of your vehicle.
Hybrid transmission (LC500h)
Fluid capacity*7.2 qt. (6.8 L, 6.0 Imp.qt.)
Fluid typeToyota Genuine ATF WS
Page 393 of 432

3938-2. Customization
8
Vehicle specifications
*1: For details about each function: P.80, 88
*2: The default setting varies according to country.
*3:LC500
*4: LC500h
*5: 2 of the following items: current fuel cons umption, average fuel economy (after reset),
average fuel economy (after start), average fuel economy (after refuel), average vehicle
speed (after reset), average vehicle speed (after start), elapsed time (after reset),
elapsed time (after start), distance (driving range), distance (after start), blank.
*6: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.
■HUD (Head-up Display)*1 ( P.90)
Rev peakOffOnO
Clock12-hour display24-hour displayO
Sensor sensitivity for darkening the
brightness of the instrument cluster
depending on the outside bright-
ness
Standard-2 to 2O
Sensor sensitivity for returning the
brightness of the instrument cluster
to the original level depending on
the outside brightness
Standard-2 to 2O
Suggestion functionOn
On
(when the vehicle is stopped)
OO
Off
FunctionDefault settingCustomized setting
Gauge informationTachometer
Eco Driving Indica-
tor Light
*2
OHybrid System Indi-
cator
*3
No display
Driving support display (Naviga-
tion system)OnOffO
Function*1Default settingCustomized settingABC
ABC
Page 395 of 432
3958-2. Customization
8
Vehicle specifications
*1: If equipped
*2: BSM function only
■Active rear wing* ( P.229)
*:If equipped
■Door lock ( P.106, 110, 355)
Alert timing for presence of
approaching vehicle (sensitivity)
*2
(Intermediate)
(Early)
O(Late)
(Only when in blind
spot)
RCTA buzzer volumeLevel 2Level 1OLevel 3
FunctionDefault settingCustomized setting
Operation of the active rear wingOffOnOO
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
OOVehicle speed is
approximately 12
mph (20 km/h) or higher
FunctionDefault settingCustomized settingABC
ABC
ABC
Page 396 of 432

3968-2. Customization
■Smart access system with push-button start and wireless remote control
( P.104, 113)
■Smart access system with push-button start ( P.113)
Automatic door unlockShifting the shift
position to POff
OODriver’s door is opened
Locking/unlocking of the trunk
when both side doors are
locked/unlocked
OnOffO
Time elapsed before the door lock
indicator lights turn off30 seconds
1 minute
O10 minutes
20 minutes
FunctionDefault settingCustomized setting
Operating signal (Buzzers)5OffOO1 to 7
Operation signal (Emergency
flashers)OnOffOO
Time elapsed before automatic
door lock function is activated if
door is not open ed after being
unlocked
60 seconds
Off
OO30 seconds
120 seconds
Open door warning buzzerOnOffO
FunctionDefault settingCustomized setting
Smart access system with push-
button startOnOffO
Smart door unlockingDriver’s doorBoth side doorsOO
Number of consecutive door lock
operations2 timesAs many as desiredO
FunctionDefault settingCustomized settingABC
ABC
ABC