Page 90 of 676

901-2. Hybrid system
LS600h/LS600hL_EE(OM50G20E)
There are air intake vents on the
package tray for the purpose of
cooling the hybrid battery (traction
battery). If the vents become
blocked, the hybrid battery may
overheat, leading to a reduction in
hybrid battery output.
When a certain level of impact is detected by the impact sensor, the emer-
gency shut off system blocks off the high voltage current and stops the fuel
pump to minimize the risk of electrocution and fuel leakage. If the emer-
gency shut off system activates, your vehicle will not restart. To restart the
hybrid system, contact any authoriz ed Lexus dealer or repairer, or
another duly qualified and equipped professional.
A message is automatically displayed when a malfunction occurs in the
hybrid system or an improper operation is attempted.
If a warning message is shown on
the multi-information display, read
the message and follow the instruc-
tions.
Hybrid battery (traction battery) air vents
Emergency shut off system
Hybrid warning message
Page 96 of 676
96
LS600h/LS600hL_EE(OM50G20E)
1-3. Theft deterrent system
The indicator light flashes after the
power switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing
after the power switch has been
turned to ACCESSORY or ON
mode to indicate that the system has
been canceled.
■System maintenance
The vehicle has a maintenance-free type immobilizer system.
■Conditions affecting operation
Depending on surrounding environment and conditions, the immobilizer system
may not operate properly. This may prevent the hybrid system from starting.
( P. 159)
Immobilizer system
The vehicle’s keys have built-in transponder chips that prevent the
hybrid system from starting if a key has not been previously registered
in the vehicle’s on-board computer.
Never leave the keys inside the ve hicle when you leave the vehicle.
This system is designed to help pr event vehicle theft but does not guar-
antee absolute security ag ainst all vehicle thefts.
Page 104 of 676
1041-3. Theft deterrent system
LS600h/LS600hL_EE(OM50G20E)
Do one of the following to deactivate or stop the alarm:
●Unlock the doors or open the trunk using the entry function or wireless
remote control.
●Start the hybrid system. (The alarm w ill be deactivated or stopped after
a few seconds.)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the fol-
lowing:
●Nobody is in the vehicle.
●The windows and moon roof (if equipped) are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
Deactivating or stopping the alarm
Page 119 of 676

1192. Instrument cluster
2
Instrument cluster
LS600h/LS600hL_EE(OM50G20E)
■Hybrid System Indicator
●Hybrid System Indicator is displayed when the driving mode is other than the sport
mode.
●By keeping the indicator needle within Eco area, more Eco-friendly driving can be
achieved.
●Charge area indicates regeneration* status. Regenerated energy will be used to
charge the battery.
*: When used in this manual, “regeneration” refers to the conversion of energy cre-
ated by the movement of the vehicle into electrical energy.
■ECO lamp and SPORT lamp
●When all of the following conditions are satisfied and Eco-friendly driving is being
performed, ECO lamp (blue) will illuminate. (ECO lamp will become brighter the
more Eco-friendly your driving is. Also, while the vehicle is stopped or the acceler-
ation exceeds Zone of Eco driving, ECO lamp turns off. ( P. 119) However, when
Eco drive mode is selected, while the vehicle is stopped or the acceleration
exceeds Zone of Eco driving, ECO lamp does not turn off.):
• Driving with the shift lever in D.
• Vehicles with paddle shift switches: Paddle shift switch is not operated.
• Normal mode, comfort mode or Eco drive mode is selected, and EV drive
mode and snow mode is not in use.
• The vehicle speed is approximately 130 km/h (80 mph) or below.
●When sport mode is selected, SPORT lamp (red) will illuminate.
Charge area
Shows regenerative charging.
Hybrid Eco area
Shows that gasoline engine power is not
being used very often.
The gasoline engine will automatically stop
and restart under various conditions.
Eco area
Shows that the vehicle is being driven in an
Eco-friendly manner.
Power area
Shows that an Eco-friendly driving range is
being exceeded (during full power driving
etc.)
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Page 162 of 676

1623-2. Opening, closing and locking the doors and trunk
LS600h/LS600hL_EE(OM50G20E)
■Electronic key battery depletion
●The standard battery life is 1 to 2 years. (The card key battery life is about a year and
a half.)
●If the battery is low, an alarm will sound in the cabin when the hybrid system is
started or stopped. ( P. 154)
●The battery becomes depleted even if the electronic key is not used because the
key always receives radio waves. If the smart entry & start system or the wireless
remote control does not operate, or the detection area becomes smaller, the bat-
tery may be depleted. Replace the battery when necessary. ( P. 532)
●To avoid serious deterioration, do not leave the electronic key within 1 m (3 ft.) of
the following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
■When the electronic key battery is fully depleted
P. 532
■Customization
Settings (e. g. smart entry & start system) can be changed.
(Customizable features P. 634)
Page 185 of 676

1853-2. Opening, closing and locking the doors and trunk
3
Operation of each component
LS600h/LS600hL_EE(OM50G20E)
CAUTION
■Trunk easy closer
■Power trunk lid
Observe the following precautions when operating the power trunk lid.
Failure to do so may cause serious injury.
●Check the safety of the surrounding area to make sure there are no obstacles or
anything that could cause any of your belongings to get caught.
●If anyone is in the vicinity, make sure they are safe and let them know that the
trunk is about to open or close.
●If the trunk closer switch is pressed while the trunk lid is opening during automatic
operation, the trunk lid stops opening. Take extra care when on an incline, as the
trunk lid may open or close suddenly.
●On an incline, the trunk lid may suddenly shut after it opens automatically. Make
sure the trunk lid is fully open and secure before using the trunk.
●In the following situations, the power trunk lid may detect an abnormality and
automatic operation may be stopped. In this case, the trunk lid has to be operated
manually. Take extra care in this situation, as the stopped trunk lid may suddenly
shut, causing an accident.
• When the trunk lid contacts an obstacle
• When the 12-volt battery voltage suddenly drops, such as when the power
switch is turned to ON mode or the hybrid system is started during automatic
operation
●Do not attach any accessories other than genuine Lexus parts to the trunk lid. The
power trunk lid may not operate, causing itself to malfunction, or the trunk lid may
suddenly shut closed again after it is opened.
In the event that the trunk lid is left slightly
open, the trunk easy closer will automatically
close it to the fully closed position. It takes
several seconds before the trunk easy closer
begins to operate. Be careful not to catch fin-
gers or anything else in the trunk lid, as this
may cause bone fractures or other serious
injuries.
Page 191 of 676

1913-3. Adjusting the seats
3
Operation of each component
LS600h/LS600hL_EE(OM50G20E)
■Operating the foldable head restraint (vehicles with relaxation seat)
●If the seatback angle is adjusted using the switches located on the side of the front
passenger’s seat or center console when the power switch is in ON mode, the
head restraint will operate as follows:
• When tilting the seatback forward:
After the seatback movement ends, the head restraint starts to rise and fold. A
signal beeps once operation is complete. If the switch is released during the
operation, the head restraint will return to the neutral position.
• When tilting the seatback backward:
If the head restraint is folded, it will return to the neutral position.
●In the following situations, the head restraint will not operate even when the seat-
back angle adjustment switch is operated:
•The power switch is off.
• The weight of an occupant or heavy object, etc. is detected on the front passen-
ger’s seat.
• The front passenger’s seat belt is fastened.
• The front passenger’s door is open.
■Operating the front passenger’s seat from the rear seat (vehicles with relaxation
seat)
The front passenger’s seat can be operated when the power switch is in ON mode.
However, in the following situations, the front passenger’s seat does not move even
when the switch is operated:
●The weight of an occupant or heavy load etc. is detected on the front passenger’s
seat.
●The front passenger’s seat belt is fastened.
●The front passenger’s door is open. (The front seat will not move forward.)
■Seat cushion automatic length adjustment (driver’s seat)
If the front of the cushion gets too close to the area around the instrument panel
when the seat position is being adjusted, the seat cushion will automatically retract.
■Seat operation automatic stop function (vehicles with relaxation seat)
If a front seat is likely to come into contact with the retractable table (4-seat models)
or the ottoman during seat operation or activation of the power easy access system,
a buzzer will sound and seat slide operation will be stopped partway.
(A warning message will be shown on the multi-information display.)
Page 198 of 676
1983-3. Adjusting the seats
LS600h/LS600hL_EE(OM50G20E)
Relaxation mode can be entered by operating a switch. The front passen-
ger seat will move forward, and then the seatback of the relaxation seat
will recline and the ottoman will simultaneously rise.
5-seat models
Pressing the switch will cause a
beep to sound and operation will
start.
Enters relaxation mode
Returns to the neutral position
To stop the operation part-way
through, press either side of the
switch again, or press any other seat
adjustment button.
4-seat models
Pressing the switch will cause a
beep to sound and operation will
start.
Enters relaxation mode
Returns to the neutral position
To stop the operation part-way
through, press either side of the
switch again, or press any other seat
adjustment button.
Relaxation mode operation (relaxation seat)
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