Page 88 of 676

881-2. Hybrid system
LS600h/LS600hL_EE(OM50G20E)
■Charging the 12-volt battery
P. 609
■After the 12-volt battery has discharged or has been changed or removed
The gasoline engine may not stop even if the vehicle is running on the hybrid battery
(traction battery). If this continues for a few days, contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sounds or vibration even though the vehicle is able to move.
For safety, apply the parking brake and make sure to shift the shift lever to P when
parked.
The following sounds or vibrations may occur when the hybrid system is operating
and are not a malfunction:
●Motor sounds may be heard from the engine compartment.
●Sounds may be heard from the hybrid battery (traction battery) behind the rear
seats when the hybrid system starts or stops.
●Sounds from the hybrid system may be heard when the trunk lid is open.
●Sounds may be heard from the hybrid transmission when the hybrid system starts
or stops.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard due to regenerative braking when the accelerator pedal is
released or the brake pedal is depressed.
●Vibration may be felt or sounds may be heard when the gasoline engine starts or
stops.
●Cooling fan sounds may be heard from the air intake vents on the package tray.
■Hybrid battery (traction battery) cooling
The air conditioning system may operate automatically to cool the hybrid battery
(traction battery).
■Maintenance, repair, re cycling, and disposal
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional regarding maintenance, repair, recycling and disposal. Do not
dispose of the vehicle yourself.
■Customization
Settings (e.g. on/off operation of the EV indicator) can be changed.
(Customizable features P. 634)
Page 89 of 676
891-2. Hybrid system
1
For safety and security
LS600h/LS600hL_EE(OM50G20E)
Hybrid system precautions
Take care when handling the hybrid system, as it contains a high voltage
system (about 650 V at maximum) as well as parts that become
extremely hot when the hybrid system is operating. Obey the caution
labels attached to the vehicle.
Caution label
Power control unit
Electric motor (traction motor)
Hybrid battery (traction bat-
tery)
DC/DC converter
Service plug
High voltage cables (orange)
Air conditioning compressor
1
2
3
4
5
6
7
8
Page 91 of 676

911-2. Hybrid system
1
For safety and security
LS600h/LS600hL_EE(OM50G20E)
■If a warning light comes on, a warning message is displayed, or the 12-volt battery is
disconnected
The hybrid system may not start. In that case, try to start the system again. If the
“READY” indicator does not come on, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
■Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be started, refuel
the vehicle with at least enough gasoline to make the low fuel level warning light
( P. 558) go off. If there is only a small amount of fuel, the hybrid system may not be
able to start. (The minimum amount of fuel to add to make the low fuel level warning
light go out is about 13 L [3.4 gal., 2.8 Imp. gal.], when the vehicle is on a level sur-
face. This value may vary when the vehicle is on a slope.)
■Electromagnetic waves
●High voltage parts and cables on the hybrid vehicles incorporate electromagnetic
shielding, and therefore emit approximately the same amount of electromagnetic
waves as conventional gasoline powered vehicles or home electronic appliances.
●Your vehicle may cause sound interference in some third party-produced radio
parts.
■Hybrid battery (traction battery)
The hybrid battery (traction battery) has a limited service life. The lifespan of the
hybrid battery (traction battery) can change in accordance with driving style and
driving conditions.
■Declaration of conformity
This model conforms to hydrogen emissions according to regulation ECE100 (Bat-
tery electric vehicle safety).
Page 118 of 676

1182. Instrument cluster
LS600h/LS600hL_EE(OM50G20E)
■The meters and display illuminate when
The power switch is in ON mode.
■Instrument panel brightness adjustment
●Meters:
The brightness level of the meters when the surroundings are bright (day mode)
and dark (night mode) can be adjusted individually. However, when in day mode,
adjusting the brightness level will also change the brightness level of night mode.
●Clock, air conditioning temperature display and switch lights:
The brightness level of the clock, air conditioning temperature display and switch
lights are linked with the brightness level of meter night mode.
■Light dimmer control (Changing to night mode)
The brightness level of the meter, clock and air conditioning temperature display
lights will change to night mode only wh en the surroundings are dark and the tail
lights are on.
■Automatic adjustment of the brightness level of the meters
The brightness level of the meters will be adjusted automatically according to the
brightness of the surroundings detected by the light sensor. However, the brightness
level of the meters will not be adjusted automatically in the following conditions.
●Day mode: When the brightness of the meter is adjusted to the brightest manually
●Night mode: When the brightness of the meter is adjusted to the brightest or dark-
est manually
Page 159 of 676

1593-2. Opening, closing and locking the doors and trunk
3
Operation of each component
LS600h/LS600hL_EE(OM50G20E)
■Conditions affecting operation
The smart entry & start system uses weak radio waves. In the following situations, the
communication between the electronic key and the vehicle may be affected, pre-
venting the smart entry & start system, wi reless remote control and immobilizer sys-
tem from operating properly. (Ways of coping: P. 603)
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, gas station, radio station, large display, air-
port or other facility that generates strong radio waves or electrical noise
●When carrying a portable radio, cellular phone, cordless phone or other wireless
communication device
●When the electronic key is in contact with, or is covered by the following metallic
objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When multiple electronic keys are in the vicinity
●When other wireless keys (that emit radio waves) are being used nearby
●When carrying the electronic key together with the following devices that emit
radio waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or metallic objects are attached to the rear
window
Page 244 of 676
2444-1. Before driving
LS600h/LS600hL_EE(OM50G20E)
NOTICE
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause
the following serious damage to the vehicle:
●Engine stalling
●Short in electrical components
●Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to
have any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional check the following:
●Brake function
●Changes in quantity and quality of oil and fluid used for the engine, transmission,
transfer, differential, etc.
●Lubricant condition for the propeller shaft, bearings and suspension joints (where
possible), and the function of all joints, bearings, etc.
Page 249 of 676

2494-2. Driving procedures
4
Driving
LS600h/LS600hL_EE(OM50G20E)
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes with the shift
lever in P, the power switch will automatically turn off.
■Sounds and vibrations specific to a hybrid vehicle
P. 88
■Electronic key battery depletion
P. 162
■When the ambient temperature is low, such as during winter driving conditions
It may take time until the “READY” indicator comes on.
■Conditions affecting operation
P. 159
■Notes for the entry function
P. 160
■If the hybrid system does not start
The immobilizer system may not have been deactivated. ( P. 96)
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
■Steering lock
After turning the power switch off and opening and closing the doors, the steering
wheel will be locked due to the steering lock function. Operating the power switch
again automatically cancels the steering lock.
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be suspended if
the hybrid system is turned on and off repe atedly in a short period of time. In this
case, refrain from operating the hybrid system. After about 10 seconds, the steering
lock motor will resume functioning.
The green indicator light on the power switch
will flash and a message will be shown on the
multi-information display. Press the power
switch again while turning the steering wheel
left and right.
Page 335 of 676

3354-5. Using the driving support systems
4
Driving
LS600h/LS600hL_EE(OM50G20E)
Sport mode
• SPORT S mode
Assists acceleration response by controlling the hybrid system. Suit-
able for when powerful acceleration is desirable.
When not in SPORT S mode and the driv ing mode select switch is turned to
the right, the “SPORT S” indicator comes on in the multi-information display,
and the Hybrid System Indicator changes to the tachometer. ( P. 115)
• SPORT S+ mode
Helps to ensure steering performance and driving stability by simul-
taneously controlling the steering and suspension in addition to the
hybrid system. Suitable for sporty driving.
When in SPORT S mode and the driving mo de select switch is turned to the
right, the “SPORT S+” indicator comes on in the multi-information display.
■Operation of the air conditioni ng system in Eco drive mode
Eco drive mode controls the heating/cooling operations and fan speed of the air
conditioning system to enhance fuel efficiency ( P. 399). To improve air condition-
ing performance, adjust the fan speed or turn off Eco drive mode.
■Sport mode automatic deactivation
Sport mode is automatically deactivated if the power switch is turned off after driving
in sport mode.
■Driving mode pop-up display
When the driving mode is changed, the selected driving mode will be temporarily
displayed on the side display. ( P. 396)
4