Page 85 of 600

85
1
1-3. Theft deterrent system
GS450h_300h_OM_OM30F92E_(EE)
For safety and security
Immobilizer 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 indi-
cate that the system has been canceled.
■System maintenance
The vehicle has a maintenance-free type immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touching a key to the security system (key with a built-in transponder chip) of another vehicle
The vehicle’s keys have built-in transpon der chips that prevent the hybrid sys-
tem from starting if a key has not been previously registered in the vehicle’s
on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
This system is designed to help prev ent vehicle theft but does not guarantee
absolute security against all vehicle thefts.
Page 91 of 600
91
1
1-3. Theft deterrent system
GS450h_300h_OM_OM30F92E_(EE)
For safety and security
Alarm
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 is unlocked or opened in any way other than using the entry
function or wireless remote control. (The door will lock again automatically.)
●A trunk is opened in any way other than using the entry function, wireless
remote control or mechanical key.
●The hood is opened.
●The tilt sensor detects a change of vehicle inclination. (if equipped)
Close the doors, trunk and hood, and
lock all the doors using the entry func-
tion or wireless remote control. The
system will be set automatically after
30 seconds.
The indicator light changes from being
on to flashing when the system is set.
: If equipped
The alarm
Setting the alarm system
Page 93 of 600

931-3. Theft deterrent system
1
GS450h_300h_OM_OM30F92E_(EE)
For safety and security
■Triggering of the alarm
The alarm may be triggered in the following situations: (Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
In the following cases, the door may automatically lock:
●When a person remain ing in the vehicle unlocks the door and the alarm is activated.
●While the alarm is activated, a person remaining in the vehicle unlocks the door.
●When recharging or replacing the 12-volt battery.
■Customization
The alarm can be set to deactivate when the mechanical key is used to unlock. (Customizable features: P. 561)
●The doors are unlocked using the mechanical key, or the trunk is opened using the mechani-
cal key.
●A person inside the vehicle opens a door, the trunk or hood, or unlocks the vehicle using an
inside lock button.
●The 12-volt battery is recharged or replaced when the vehicle is locked. ( P. 533)
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation of
the system cannot be guaranteed.
Page 95 of 600

951-3. Theft deterrent system
1
GS450h_300h_OM_OM30F92E_(EE)
For safety and security
■Canceling and automatic re-enabling of the intrusion sensor and tilt sensor
●The alarm will still be set even when the intrusion sensor and tilt sensor are canceled.
●After the intrusion sensor and tilt sensor are canceled, pressing the power switch or unlocking the doors using the entry function, wireless remote control or mechanical
key will re-enable the intrusio n sensor and tilt sensor.
●The intrusion sensor and tilt sensor will automatically be re-enabled when the alarm system is deactivated.
■Intrusion sensor detection considerations (if equipped)
The sensor may trigger the alarm in the following situations:
• The movement of people outside the vehicle
●Places with extreme vibrations or noises, or situations in which the vehicle is subject to
repeated impacts or vibrations:
• When parked in a parking garage • When the vehicle is transported by a ferry, trailer, train, etc.
• When ice adhering to the vehicle is removed • When the vehicle is in an automatic or high-pressure car wash• When in a hail or lightning storm
●A window or the moon roof (if equipped) isopen. In this case, the sensor may detect the follow-
ing:
• Wind or the movement of objects such as leaves and insects inside the vehicle
• Ultrasonic waves emitted from devices such as the intrusion sensors of other vehi-cles
●Unstable items, such as dangling accessoriesor clothes hanging on the coat hooks, are inthe vehicle.
Page 133 of 600
133
3
Operation of
each component
GS450h_300h_OM_OM30F92E_(EE)
3-1. Key information
Keys .................................................. 134
3-2. Opening, closing and locking
the doors and trunk
Doors ............................................... 139
Trunk .................................................146
Smart entry & start system ...... 153
3-3. Adjusting the seats
Front seats.......................................175
Driving position memory ......... 178
Head restraints ............................ 183
3-4. Adjusting the steering
wheel and mirrors
Steering wheel ............................. 186
Inside rear view mirror ............. 188
Outside rear view mirrors....... 190
3-5. Opening, closing the
windows and moon roof
Power windows ........................... 193
Moon roof ...................................... 196
Page 134 of 600
1343-1. Key information
GS450h_300h_OM_OM30F92E_(EE)
Keys
The following keys are provided with the vehicle.
Electronic keys
• Operating the smart entry & start
system ( P. 153) • Operating the wireless remote con-trol function
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped)
Operating the smart entry & start sys- tem ( P. 153)
Locks all the doors (P. 139)
Closes the windows and moon roof
(if equipped)* ( P. 139)
Unlocks all the doors ( P. 139)
Opens the windows and moon roof
(if equipped)* ( P. 139)
Opens the trunk ( P. 147)
*: These settings must be customized at any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
The keys
1
2
3
4
Wireless remote control
1
2
3
4
5
Page 135 of 600

1353-1. Key information
3
Operation of each component
GS450h_300h_OM_OM30F92E_(EE)
To take out the mechanical key, push
the 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 si de. If the key can- not be inserted in a lock cylinder, turn it
over and re-attempt to insert it.
After using the mechanical key, store it in the electronic key. Carry the mechan-
ical key together with the electronic key. If the electronic key battery is depletedor the entry function does not operate
properly, you will need the mechanical key. ( P. 527)
■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 problem arises, such as when the card key does not operate properly.
●If it is difficult to take out the mechanical key, push down the lock release button using a
pen tip etc. If it is still difficu lt to pull it out, use a coin etc.
Using the mechanical key
●To store the mechanical key in the card key,
insert it while pressing the lock release button.
●If the battery cover is not installed and the bat-
tery falls out or if the battery was removed because the key got wet, reinstall the batterywith the positive terminal facing the Lexus
emblem.
Page 136 of 600

1363-1. Key information
GS450h_300h_OM_OM30F92E_(EE)
■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. 148, 370)
Remove the mechanical key for your own use and provide the attendant with the elec- tronic key only.
■If you lose your mechanical keys
New genuine mechanical keys can be made by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer using the other mechanical key and the keynumber stamped on your key number plate. K eep the plate in a safe place such as your
wallet, not in the vehicle.
■When riding in an aircraft
When bringing an electronic key onto an aircraft, make sure you do not press any but-
tons on the electronic key while inside the ai rcraft cabin. If you are carrying an electronic key in your bag etc., ensure that the buttons are not likely to be pressed accidentally.Pressing a button may cause the electronic key to emit radio waves that could interfere
with the operation of the aircraft.
■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 becomes low, an alarm will sound in the cabin when the hybrid system stops. ( P. 496)
●As the electronic key always receives radio waves, the battery will become depleted even if the electronic key is not used. The following symptoms indicate that the elec-tronic key battery may be depleted. Replace the battery when necessary. ( P. 435)
• The smart entry & start system or the wireless remote control does not operate. • The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
●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
■Replacing the battery
P. 435
■Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask any autho- rized Lexus retailer or Lexus authorized repa irer, or any reliable repairer for details.
■If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.