2017 Lexus IS300h key

641-1. For safe use
IS300h_EE(OM53D89E)
(1) For the child restraint system which do not carry the ISO/XX size class
identification (A to G), for the appli cable mass group, the car manufacturer
shall indicate the vehicle specific IS OFIX child restraint system(s) recom-
mended for each position.
Key of letters inserted in the above table:
IUF: Suitable for ISOFIX fo rward-facing child restraint systems of universal cat-
egory approved for use in this mass group.
IL: Suitable for ISOFIX child restraint systems of the categories for “specific
vehicles”, “restricted”, or “semi-univ ersal”, approved for use in this mass
group.
X: ISOFIX position not suit able for ISOFIX child restraint systems in this mass
group and/or this size class.
*: Remove the head restraint if it interferes wi th your child restraint system. Do not sit on
rear center seat when child restraint sy stem is installed to rear left seat.
When using a “LEXUS MINI” or “LEXUS MIDI”, adjust the support leg and the
ISOFIX connectors as follows:
Lock the support leg where 4th hole
can be seen. (“LEXUS MIDI” rear-
facing, “LEXUS MINI”)
Lock the support leg where 6th hole
can be seen. (“LEXUS MIDI” for-
ward-facing only)
Lock the ISOFIX connectors where
numbers 4 and 5 can be seen.
The child restraint system mentioned in the table may not be available outside of
the EU area.
Other child restraint systems which are different from the systems mentioned in
the table can be used, but the suitability of the systems must be carefully checked
with the child restraint syst em manufacturer and retailer.
1
2
3

86
IS300h_EE(OM53D89E)
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 indi-
cate that the system has been canceled.
■System maintenance
The vehicle has a maintenance-fr ee 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 registered to the security system (key
with a built-in transponde r chip) of another vehicle
Immobilizer system
The vehicle’s keys have built-in transponder 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 ve hicle 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.

941-3. Theft deterrent system
IS300h_EE(OM53D89E)
■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, depending on the situ ation, the door may automatically lock to
prevent improper entry into the vehicle:
●The doors are unlocked manually without the mechanical key and the alarm is trig- gered.
●While the alarm is operating, the doors ar e unlocked manually without the mechanical
key.
●When recharging or replacing the 12-volt battery
●The doors or trunk are unlocked using the mechanical key.
●A person inside the vehicle opens a door, the
trunk or hood, or unlocks the vehicle using a
inside lock button.
●The 12-volt battery is recharged or replaced
when the vehicle is locked. ( P. 633)
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.

137
3
Operation of
each component
IS300h_EE(OM53D89E)
3-1. Key information
Keys .................................................. 138
3-2. Opening, closing and
locking the doors and
trunk
Doors ................................................144
Trunk .................................................. 151
Smart entry & start system .......157
3-3. Adjusting the seats
Front seats.......................................173
Rear seats (folding type) ...........175
Driving position memory .......... 177
Head restraints ............................ 182
3-4. Adjusting the steering
wheel and mirrors
Steering wheel ............................. 185
Inside rear view mirror ............. 187
Outside rear view mirrors....... 189
3-5. Opening, closing the
windows and moon roof
Power windows ........................... 193
Moon roof .......................................197

138
IS300h_EE(OM53D89E)
3-1. Key information
The following keys are provided with the vehicle.
Electronic keys
• Operating the smart entry & start system ( P. 157)
• 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. 157)
Locks the doors (P. 144)
Closes the windows and moon roof*
( P. 144)
Unlocks the doors ( P. 144)
Opens the windows and moon roof*
( P. 144)
Opens the trunk ( P. 152)
*: These settings must be customized at any authorized Lexus retailer or Lexus autho-
rized repairer, or an y reliable repairer.
Keys
The keys
1
2
3
4
Wireless remote control
1
2
3
4
5

1393-1. Key information
3
Operation of each component
IS300h_EE(OM53D89E)
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 side. 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 ke y. Carry the mechan-
ical key together with the electronic key.
If the electronic key battery is depleted or the entry function does not operate
properly, you will ne ed the mechanical
key. ( P. 628)
Using the mechanical key

1403-1. Key information
IS300h_EE(OM53D89E)
■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 difficul t to pull it out, use a coin etc.
■When required to leave the vehicle’s key with a parking attendant
Set the luggage security system ( P. 153) on and lock the glove box (P. 485) as cir- cumstances demand.
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 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 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 battery
with the positive terminal facing the Lexus emblem.

1413-1. Key information
3
Operation of each component
IS300h_EE(OM53D89E)
■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 airc raft cabin. If you are carrying an electronic
key in your bag etc., ensure that the button s 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 so und in the cabin when the hybrid system is
stopped. ( P. 606)
●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. 549)
• The smart entry & start system or the wi reless remote control does not operate.
• The detection area becomes smaller.
• The LED indicator on the ke y 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, co rdless phones and battery chargers • Recharging cellular phon es or cordless phones
•Table lamps
• Induction cookers
■Replacing the battery
 P. 549
■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 re pairer, or any reliable repairer for details.
■If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.