Page 22 of 628
22Pictorial index
IS300h_EE(OM53B95E)
Interior (Left-hand drive vehicles)
SRS airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 43
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 34
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 164
Head restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 173
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 38
Console box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 414
Inside lock buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 139
Cup holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 415
Assist grips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 4241
2
3
4
5
6
7
8
9
Page 30 of 628
30Pictorial index
IS300h_EE(OM53B95E)
Interior (Right-hand drive vehicles)
SRS airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 43
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 34
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 164
Head restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 173
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 38
Console box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 414
Inside lock buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 139
Cup holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 415
Assist grips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 4241
2
3
4
5
6
7
8
9
Page 135 of 628

1333-1. Key information
3
Operation of each component
IS300h_EE(OM53B95E)
When riding in an aircraft
When bringing an electronic key onto an aircraft, make sure you do not press any
buttons on the electronic key while inside the aircraft 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 is stopped. (P. 527)
As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery when
necessary. (P. 472)
• The smart entry & start system or the wireless remote control does not oper-
ate.
• 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. 472
Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask any
authorized Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional for details.
If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.
Page 141 of 628
1393-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS300h_EE(OM53B95E)
Door lock switches
Locks all the doors
Unlocks all the doors
Inside lock buttons
Locks the door
Unlocks the door
The front doors can be opened by
pulling the inside handle even if
the lock buttons are in the lock
position.
Move the inside lock button to the lock position.
Close the door while pulling the door handle.
The door cannot be locked if the power switch is in ACCESSORY or ON
mode, or the electronic key is left inside the vehicle. However, the key may
not be detected correctly and the door may be locked.
Unlocking and locking the doors from the inside
1
2
1
2
Locking the front doors from the outside without a key
1
2
Page 143 of 628

1413-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS300h_EE(OM53B95E)
Switching the door unlock function (vehicles with entry function)
It is possible to set which doors the entry function unlocks using the wireless
remote control.
Turn the power switch off.
Cancel the intrusion sensor and tilt sensor of the alarm system to prevent unin-
tended triggering of the alarm while changing the settings. (if equipped) (P.
99)
When the indicator light on the key surface is not on, press and hold ,
or for approximately 5 seconds while pressing and holding .
The setting changes each time an operation is performed, as shown below.
(When changing the setting continuously, release the buttons, wait for at least 5
seconds, and repeat step .)
For vehicles with an alarm: To prevent unintended triggering of the alarm,
unlock the doors using the wireless remote control and open and close a door
once after the settings have been changed. (If a door is not opened within 30 sec-
onds after is pressed, the doors will be locked again and the alarm will
automatically be set.)
In a case that the alarm is triggered, immediately stop the alarm. (P. 97)
1
2
3
3
Multi-information
displayUnlocking functionBeep
(Left-hand drive
vehicles)
(Right-hand drive
vehicles)
Holding the driver’s door
handle unlocks only the
driver’s door.
Exterior: Beeps 3
times
Interior: Pings once
Holding a passenger’s door
handle unlocks all the doors.
Holding a door handle
unlocks all the doors.Exterior: Beeps twice
Interior: Pings once
Page 144 of 628

1423-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53B95E)
Impact detection door lock release system
In the event that the vehicle is subject to a strong impact, all the doors are
unlocked. Depending on the force of the impact or the type of accident, however,
the system may not operate.
Using the mechanical key
The doors can also be locked and unlocked with the mechanical key. (P. 548)
Conditions affecting the operation of the smart entry & start system or wireless
remote control
P. 151
Customization
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features: P. 575)
CAUTION
To prevent an accident
Observe the following precautions while driving the vehicle.
Failure to do so may result in a door opening and an occupant being thrown out
of the vehicle, resulting in death or serious injury.
Ensure that all doors are properly closed.
Do not pull the inside handle of the doors while driving.
Be especially careful with the front doors, as the doors may be opened even if
the inside lock buttons are in locked position.
Set the rear door child-protector locks when children are seated in the rear
seats.
Page 152 of 628

1503-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53B95E)
Battery-saving function (vehicles with entry function)
The battery-saving function will be activated in order to prevent the electronic
key battery and the 12-volt battery from being discharged while the vehicle is not
in operation for a long time.
In the following situations, the smart entry & start system may take some time
to unlock the doors.
• The electronic key has been left within approximately 2 m (6 ft.) of the out-
side of the vehicle for 10 minutes or longer.
• The smart entry & start system has not been used for 5 days or longer.
If the smart entry & start system has not been used for 14 days or longer, the
doors cannot be unlocked at any door except the driver’s door. In this case, hold
the driver’s door handle, or use the wireless remote control or mechanical key,
to unlock the doors.
Electronic Key battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping the
electronic key from receiving radio waves.
Press twice while pressing and hold-
ing . Confirm that the electronic key
indicator flashes 4 times.
While the battery-saving mode is set, the
smart entry & start system cannot be used.
To cancel the function, press any of the
electronic key buttons.
Page 329 of 628
316
IS300h_EE(OM53B95E)5-1. Basic Operations
Lexus Display Audio System
: If equipped
Use the following buttons to start listening to the audio system.
Display Audio operation buttons
Eject a disc.
Seek up or down for a radio station, or to access a desired track or file.
Except radio and A/V mode: Pause or resume playing a track.
Radio and A/V mode: Turn mute on/off
Select a radio station band, track or file.
Disc slot
Display the media top screen.
Display the radio top screen.
Press to turn the audio system on/off, and turn to adjust the volume.1
2
3
4
5
6
7
8