2015 LEXUS LS600H lights

5057-2. Steps to take in an emergency
7
When trouble arises
LS600hL_U(OM50E41U)
■The LKA (Lane-Keeping Assist) lane departure warning function (if equipped)
In the following cases, the warning message will not be displayed even if a lane line is
crossed.
●When the vehicle speed deviates from the operating range of the LKA system
functions
●When the lane lines cannot be recognized
●When the steering wheel is turned as far as necessary to cause the vehicle to
change lanes
■System warning lights
The master warning light does not come on or flash in the following cases. Instead, a
separate system warning light will come on or flash along with the message shown
on the multi-information display.
●Malfunction of the brake system
The brake system warning light (red indicator) comes on. ( P. 4 9 3 )
●Malfunction of the regenerative brake syst em, electronically controlled brake sys-
tem or electric parking brake
The brake system warning light (yellow indicator) comes on. ( P. 495)
●Malfunction of the ABS
The ABS warning light comes on. ( P. 4 9 4 )
●Malfunction of the charging system
The charging system warning light comes on. ( P. 4 9 4 )
●Indicates that a door or the trunk is not fully closed
The open door warnin g light comes on. (P. 4 9 6 )
●High engine coolant temperature
The needle of the engine coolant temperature gauge enters the red zone.
( P. 5 3 0 )
■If “Maintenance required ” is shown (U.S.A. only)
Perform the necessary maintenance.
Please reset the message after the maintenance is performed. ( P. 4 2 6 )
■If “Hybrid System Overheat” is shown
Coping method: P. 5 3 0
This message may be displayed when driv ing under severe operating conditions.
(For example, when driving up a long steep hill.)
■Warning buzzer
In some cases, the buzzer may not be hear d due to ambient noise or sounds from the
audio system.

5177-2. Steps to take in an emergency
7
When trouble arises
LS600hL_U(OM50E41U)
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. (P. 5 2 6 )
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●There may be a malfunction in the immobilizer system. ( P. 8 8 )
●There may be a malfunction in the steering lock system.
●The hybrid system may be malfunctio ning due to an electrical problem
such as electronic key battery de pletion or a blown fuse. However,
depending on the type of malfuncti on, an interim measure is available
to start the hybrid system. ( P. 5 1 8 )
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( P. 5 2 7 )
●The 12-volt battery terminal connecti ons may be loose or corroded.
If the hybrid system will not start
Reasons for the hybrid system not st arting vary depending on the situa-
tion. Check the following and perf orm the appropriate procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( P. 2 1 6 )
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.

5187-2. Steps to take in an emergency
LS600hL_U(OM50E41U)
One of the following may be the cause of the problem:
●One or both of the 12-volt battery terminals may be disconnected.
●The 12-volt battery may be discharged. ( P. 5 2 7 )
Contact your Lexus dealer if the problem cannot be repaired, or if repair proce-
dures are unknown.
When the hybrid system does not start, the following steps can be used as
an interim measure to star t the hybrid system if the power switch is func-
tioning normally:
Turn the power switch to ON mode ( P. 217) and check that the park-
ing brake is set.
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch fo r about 15 seconds while depressing
the brake pedal firmly.
Even if the hybrid system can be star ted using the above steps, the system
may be malfunctioning. Have the vehicle inspected by your Lexus dealer.
The interior lights and headlights do not turn on, or the horn does
not sound.
Emergency start function
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5287-2. Steps to take in an emergency
LS600hL_U(OM50E41U)
Maintain the engine speed of the second vehicle and start the hybrid
system of your vehicle by turning the power switch to ON mode.
Make sure the “READY” indicator co mes on. If the indicator does not
come on, contact your Lexus dealer.
Once the hybrid system has started, remove the jumper cables in the
exact reverse order from wh ich they were connected.
Once the hybrid system starts, have the vehicle inspected at your Lexus
dealer as soon as possible.
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
●Turn off any unnecessary electrical compon ents 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
The hybrid system may not start.
(  P. 4 5 1 )
■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 discharge and the draining effects of certain elec-
trical appliances. If the vehicle is left for a long time, the 12-volt battery may dis-
charge, and the hybrid system may be unable to start. (The 12-volt battery recharges
automatically while the hybrid system is operating.)
■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. 9 1 )
●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.
■If the 12-volt battery is discharged
The information stored in the computer will be deleted.
If the 12-volt battery is discharged, have the vehicle inspected by your Lexus dealer.
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5438-1. Specifications
8
Vehicle specifications
LS600hL_U(OM50E41U)
Cooling system
Capacity
Gasoline
engine11.7 qt. (11.1 L, 9.8 Imp. qt.)
Pow e r
control unit2.7 qt. (2.6 L, 2.3 Imp. qt.)
Coolant type
Use either of the following:• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-silicate, non-amine, non- nitrite, and non-borate
coolant with long-life hybrid organic acid tech-
nology
Do not use plain water alone.
Ignition system
Spark plug
MakeDENSO FK20HBR11
Gap0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
12-volt battery
Open voltage at 68 F
(20 C): 12.5 V or higher Fully charged
11.0 
12.4 V Half charged
10.9 V or lower Discharged
(Voltage is checked 20 minutes after the hybrid sys-
tem and all lights are turned off.)
Charging rates5 A max.

5498-1. Specifications
8
Vehicle specifications
LS600hL_U(OM50E41U)
Light bulbs
Light bulbsBulb No.WTy p e
Interior
Vanity lights Front
Rear

83A B
Trunk lid light3.8A
Tr u n k l i g h t3.8A
A: Wedge base bulbs B: Double end bulbs

5698-2. Customization
8
Vehicle specifications
LS600hL_U(OM50E41U)
Tu r n s i g n a l
lever
( P. 2 2 7 )Times of flashing of the lane
change signal flashers3
5
O—O7
9
11
Off
Automatic
light control
system
( P. 2 3 4 )
Light sensor sensitivityStandard-2 to 2O—O
Time elapsed before head-
lights automatically turn off
after doors are closed30
seconds
Off
O—O
60
seconds
90
seconds
AFS (Adap-
tive Front-
lighting Sys-
tem)
(  P. 235)
Adaptive Front-lighting
SystemOnOff——O
Lights
( P. 2 3 4 )Daytime running light sys-
tem
*3OnOffO—O
Intuitive
parking
assist
*4
Detection distance of the
front center sensorFarNearO—O
Detection distance of the
rear center sensorFarNearO—O
Buzzer volume31 to 5O—O
Display setting (when intui-
tive parking assist is oper-
ating)All sensors
displayedDisplay offO—O
ItemFunctionDefault settingCustom-
ized setting123

5718-2. Customization
8
Vehicle specifications
LS600hL_U(OM50E41U)
Illumination
( P. 3 6 0 )
Ti m e e l a p s e d b e f o r e t h e
interior lights turn off15 seconds
Off
O—O
7. 5
seconds
30
seconds
Operation after the power
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 power switch
is turned off
OnOff——O
Instrument panel illumina-
tion methodChoreo- graphed
illuminationSimple illu- mination——O
Off——O
Exterior light controlOnOff——O
Ti m e e l a p s e d b e f o r e t h e
outer foot lights turn off15 seconds
Off
O—O
7. 5
seconds
30
seconds
ItemFunctionDefault settingCustom-
ized setting123