2017 Lexus IS300h stop start

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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.

931-3. Theft deterrent system
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For safety and security
IS300h_EE(OM53D89E)
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 will 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 follow-
ing:
●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

1413-1. Key information
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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.

1453-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS300h_EE(OM53D89E)
■Operation signals
The emergency flashers flash to indicate that the doors have been locked/unlocked.
(Locked: once; Unlocked: twice)
A buzzer sounds to indicate that th e windows and moon roof are operating.
■Security feature
If a door is not opened within approximately 30 seconds after the vehicle is unlocked, the security feature automatically locks the vehicle again.
■Welcome light illumination control
The front position, tail and license plate light s automatically turn on at night when the doors are unlocked using the entry function or wireless remote control if the light switch
is in the “AUTO” position.
■When the door cannot be locked by the lock sensor on the upper part of the door han- dle (vehicles with entry function)
■Door lock buzzer
If an attempt to lock the doors is made wh en a door is not fully closed, a buzzer sounds continuously for 5 seconds. Fully close the d oor to stop the buzzer, and lock the vehicle
once more.
■Setting the alarm (if equipped)
Locking the doors will set the alarm system. ( P. 92)
■If the smart entry & start system or the wireless remote control does not operate prop-
erly
Use the mechanical key to lock and unlock the doors. ( P. 628)
Replace the key battery with a new one if it is depleted. (P. 549)
If the door will not lock even when the topside sensor area is touched, try touching both the
topside and underside sensor areas at the same
time.

1583-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53D89E)
■Battery-saving function (vehicles with entry function)
The battery-saving function w ill be activated in order to prevent the electronic key bat- tery and the 12-volt battery from being discha rged 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 outside 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 can- not 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 elec-
tronic key from receiving radio waves.
Press twice while pressing and holding
. Confirm that the electronic key indica-
tor 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 but-
tons.

1613-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS300h_EE(OM53D89E)
■Note for the push-start function
●Even when the electronic key is within the effective range (detection areas), the system may not operate properly when the electron ic key is on the instrument panel, rear
package tray or floor, or in the door pockets or glove box when the hybrid system is
started or power switch modes are changed.
●Even if the electronic key is not inside the vehicle, it may be possible to start the hybrid
system if the electronic key is near the window.
■When the vehicle is not driven for extended periods
●Vehicles with entry function: To prevent theft of the vehicle, do not leave the electronic
key within 2 m (6 ft.) of the vehicle.
●The smart entry & start system can be deactivated in advance. ( P. 657)
■To operate the system properly
●Make sure to carry the electronic key when operating the system. Do not get the elec-
tronic key too close to the vehicle when operating the system from the outside of the vehicle.
Depending on the position and holding condition of the electronic key, the key may not
be detected correctly and the system may no t operate properly. (The alarm may go off accidentally, or the door lock prev ention function may not operate.)
●Do not leave the electronic key inside the luggage compartment.
The key confinement prevention function ma y not operate, depending on the location of the key (close to a spare tire [if equipped], the inside edge of the luggage compart-
ment), conditions (inside a metal bag, clos e to metallic objects) and the radio waves in
the surrounding area. ( P. 154)
■If the smart entry & start system does not operate properly
●Locking and unlocking the doors and opening the trunk: Use the mechanical key.
( P. 628)
●Starting the hybrid system: P. 629
■Customization
Settings (e. g. smart entry & start system) can be changed.
(Customizable features: P. 657)
■If the smart entry & start system has been deactivated in a customized setting
●Locking and unlocking the doors and opening the trunk:
Use the wireless remote control or mechanical key. ( P. 144, 152, 628)
●Starting the hybrid system and changing power switch modes:P. 629
●Stopping the hybrid system: P. 220

1943-5. Opening, closing the windows and moon roof
IS300h_EE(OM53D89E)
■The power windows can be operated when
The power switch is in ON mode.
■Operating the power windows after turning the hybrid system off
The power windows can be operated for ap proximately 45 seconds after the power
switch is turned to ACCESSORY mode or turned off. They cannot, however, be oper-
ated once either front door is opened.
■Jam protection function
If an object becomes jammed between the window and the window frame while the win-
dow is closing, window movement is stop ped and the window is opened slightly.
■Catch protection function
If an object becomes caught between the door and window while the window is opening,
window movement is stopped.
■When the window cannot be opened or closed
When the jam protection functi on or catch protection function operates unusually and
the door window cannot be opened or closed , perform the following operations with the power window switch of that door.
●Stop the vehicle. With the power switch in ON mode, within 4 seconds of the jam pro-
tection function or catch protection function activating, continuously operate the power window switch in the one-touch clos ing direction or one-touch opening direc-
tion so that the door window can be opened and closed.
●If the door window cannot be opened and closed even when performing the above operations, perform the following pr ocedure for function initialization.
Turn the power switch to ON mode.
Pull and hold the power window switch in the one-touch closing direction and com- pletely close the door window.
Release the power window sw itch for a moment, resume pulling the switch in the
one-touch closing direction, and hold it there for approximately 6 seconds or more.
Press and hold the power window switch in the one-touch opening direction. After
the door window is completely opened, cont inue holding the switch for an additional
1 second or more.
Release the power window switch for a mo ment, resume pushing the switch in the
one-touch opening direction, and hold it there for approximately 4 seconds or
more.
Pull and hold the power window switch in the one-touch closing direction again.
After the door window is completely clos ed, continue holding the switch for a fur-
ther 1 second or more.
If you release the switch wh ile the window is moving, start again from the beginning.
If the window reverses and cannot be fully cl osed or opened, have the vehicle inspected
by any authorized Lexus retailer or Lexus au thorized repairer, or any reliable repairer.
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202
IS300h_EE(OM53D89E)
4-1. Before driving
 P. 219
With the brake pedal depressed, shift the shift lever to D. ( P. 226)
Release the parking brake. ( P. 235)
Gradually release the brake pedal and gently depress the accelerator pedal
to accelerate the vehicle.
With the shift lever in D, depress the brake pedal.
If necessary, set the parking brake.
If the vehicle is to be stopped for an extended period of time, shift the shift lever to P. ( P. 226)
With the shift lever in D, depress the brake pedal.
Set the parking brake ( P. 235), and shift the shift lever to P (P. 226).
If parking on a hill, block the wheels as needed.
Press the power switch to stop the hybrid system.
Lock the door, making sure that you have the electronic key on your person.
Make sure that the parking brake is set and shift the shift lever to D.
Gently depress the accelerator pedal.
Release the parking brake.
Driving the vehicle
The following procedures should be observed to ensure safe driving:
Starting the hybrid system
Driving
Stopping
Parking the vehicle
Starting off on a steep uphill
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