Page 76 of 620

741-1. For safe use
LS600hL_U(OM50E41U)
CAUTION
■When installing a child restraint system
●When a booster seat is installed, always ensure that the shoulder belt is posi-
tioned across the center of the child’s shoulder. The belt should be kept away from
the child’s neck, but not so that it could fall off the child’s shoulder. Failing to do so
may result in death or serious injury in  the event of an accident or sudden braking.
●When using the LATCH anchors for a child restraint system, adjust the seatback
as upright as possible.
●Ensure that the belt and plate are securely  locked and the seat belt is not twisted.
●Shake the child restraint system left and right, and forward and backward to
ensure that it has been securely installed.
●After securing a child restraint system, never adjust the seat.
●Follow all installation instructions provided by the child restraint system manufac-
turer.
■Do not use a seat belt extender
If a seat belt extender is used when inst alling a child restraint system, the seat belt
will not securely hold the child restraint system, which could cause death or serious
injury to the child or other passengers in the event of a sudden braking, sudden
swerving or an accident.
■To correctly attach a child restraint system to the anchors
When using the LATCH anchors, be sure that there are no foreign objects around
the anchors and that the seat belt is not  caught behind the child restraint system.
Make sure the child restraint system is securely attached, or it may cause death or
serious injury to the child or other passengers in the event of sudden braking or an
accident. 
         
        
        
     
        
        Page 84 of 620
821-2. Hybrid system
LS600hL_U(OM50E41U)
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 electr ocution and fuel leakage. If the emer-
gency shut off system activates, your ve hicle will not restart. To restart the
hybrid system, contact your Lexus dealer.
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 92 of 620
901-3. Theft deterrent system
LS600hL_U(OM50E41U)
The alarm uses light and sound to give an alert when an intrusion is
detected.
The alarm is triggered in the following situations when the alarm is set:
●A locked door or trunk is unlocked or opened in any way other than
using the entry function, wireless remote control or mechanical key.
(The doors will lock  again automatically.)
●The hood is opened.
Close the doors, trunk and hood,
and lock all the doors. The system
will be set automatically after 30
seconds.
The indicator light changes from
being on to flashing when the system
is set.
Do one of the following to deactivate or stop the alarms:
●Unlock the doors or open the trunk.
●Turn the power switch to ACCESS ORY or ON mode, or start the
hybrid system. (The alarm will be  deactivated or stopped after a few
seconds.)
Alarm
The alarm
Setting the alarm system
Deactivating or stopping the alarm 
         
        
        
     
        
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911-3. Theft deterrent system
1
For safety and security
LS600hL_U(OM50E41U)
■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 are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Triggering of the alarm
The alarm may be triggered in the following situations: 
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
●When the alarm is operating, the doors ar e locked automatically to prevent intrud-
ers.
●Do not leave the key inside the vehicle when the alarm is operating, and make sure
the key is not inside the vehicle when rech arging or replacing the 12-volt battery. 
●A person inside the vehicle opens a door,
the trunk or hood.
●The 12-volt battery is recharged or replaced
when the vehicle is locked. (P.  5 2 8 )
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation
of the system cannot be guaranteed. 
         
        
        
     
        
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1022. Instrument cluster
LS600hL_U(OM50E41U)
■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 in dividually. However, when in day mode,
adjusting the brightness level will also ch ange 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 121 of 620

119
Operation of
each component
3
LS600hL_U(OM50E41U) 3-1. Key information
Keys .................................................. 120
3-2.  Opening, closing and  locking the doors and 
trunk
Smart access system with  push-button start...................... 125
Wireless remote control ............ 141
Doors ................................................145
Trunk ..................................................149
3-3.  Adjusting the seats Front seats ...................................... 156
Power rear seat .............................162
Driving position memory .......... 172
Rear seat position memory......................................... 177
Head restraints .............................179
3-4.  Adjusting the steering  wheel and mirrors
Steering wheel ............................. 182
Inside rear view  mirror.............. 183
Outside rear view  mirrors .......................................... 185
3-5.  Opening, closing the  windows and moon roof
Power windows ............................ 189
Moon roof ...................................... 192 
         
        
        
     
        
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1213-1. Key information
3
Operation of each component
LS600hL_U(OM50E41U)
To take out the mechanical key: 
Electronic keys: Slide the release
lever and take the key out.
Card key: Press the lock release
button and take the key out.
The mechanical key can only be
inserted in one direction, as the key
only has grooves on one side. If the
key cannot be inserted in a lock cylin-
der, turn it over and re-attempt to
insert it.
After using the mechanical key, store
it in the electronic key. Carry the
mechanical key together with the
electronic key. If the electronic key
battery is depleted or the entry func-
tion does not operate properly, you
will need the mechanical key. 
( P.  5 2 4 )
Using the mechanical key 
         
        
        
     
        
        Page 124 of 620

1223-1. Key information
LS600hL_U(OM50E41U)
■Electronic keys
●Part of the electronic key uses leather. Refer to P. 422 for details on cleaning the
leather portion.
●When cleaning the metallic portion, wet a cloth and firmly wring out any excess
water from it, then thoroughly wipe off any dirt.
●When not using the electronic key for an extended period of time, store it in a dry
place of normal temperature away from direct sunlight and interior light after
removing any dirt.
■Card key (if equipped)
●The card key is not waterproof.
●The mechanical key that is stored inside the card key should be used only if a prob-
lem arises, such as when the card key does not operate properly.
●If it is difficult to take out the mechanic al key, push down the lock release button
using a pen tip etc. If it is still difficult to pull it out, use a coin etc.
■When required to leave the vehicle’s key with a parking attendant
Turn the trunk opener main switch off and lock the glove box as circumstances
demand. ( P. 150, 366) 
Remove the mechanical key for your own use and provide the attendant with the
electronic key only.
■If you lose your mechanical keys
New genuine mechanical keys can be made by your Lexus dealer using the other
mechanical key and the key number stamped on your key number plate. Keep the
plate in a safe place such as your wallet, not in the vehicle. 
●To store the mechanical key in the card key,
insert it while pressing the lock release but-
ton.
●If the battery cover is not installed and the
battery falls out or if the battery was
removed because the key got wet, reinstall
the battery with the po sitive terminal facing
the Lexus emblem.