Lexus HS250h 2010 Hybrid system / LEXUS 2010 HS250H OWNERS MANUAL (OM75006U)

91
1-5. Opening and closing the windows and moon roof
1
Before driving
CAUTION
■Opening the moon roof
Observe the following precautions.
Failing to do so may cause death or serious injury.
●Do not allow any passengers to put their hands or heads outside the vehicle while
it is moving.
●Do not sit on top of the moon roof.
■Closing the moon roof
Observe the following precautions. 
Failing to do so may result in death or serious injury.
●Check to make sure that all passengers do not have any part of their body in a
position where it could be caught when the moon roof is being operated.
●Do not allow children to operate the moon roof. 
Closing the moon roof on someone can cause death or serious injury.
■Jam protection function
●Never use any part of your body to intent ionally activate the jam protection func-
tion.
●The jam protection function may not work if something gets caught just before
the moon roof fully closes.

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1-6. Refueling
Opening the fuel tank cap
Perform the following steps to open the fuel tank cap:
■Before refueling the vehicle
Turn the “POWER” switch off and close all the doors and windows.
■ Opening the fuel tank cap
Press the opener to open the
fuel filler door
.
Turn the fuel tank cap slowly to
ope
n.
Hang the fuel tank cap on the
back of the fuel filler door
.

93
1-6. Refueling
1
Before driving
Closing the fuel tank cap
After refueling, turn the fuel tank
cap until you hear a click. Once
the cap is released, it will turn
slightly in the opposite direction.
■If the fuel filler door opener is inoperable
■Fuel types
Use unleaded gasoline. (Octane rating 8
7 [Research Octane Number 91] or
higher)
■Fuel tank capacity
Approximately 14.5 gal. (55 L, 12.5 lmp. gal.)
■Use of ethanol blended gasoline in a gasoline engine
Lexus allows the use of ethanol blended gasoline where the ethanol content is up to
1
0%. Make sure that the ethanol blended gasoline to be used has a Research
Octane Number that follows the above.
The lever can be used to open the fuel filler
door if the fuel filler door cannot be opened
using the inside switch.

94
1-6. Refueling
CAUTION
■When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do so may
result in death or serious injury.
●After exiting the vehicle and before opening the fuel door, touch an unpainted
metal surface to discharge any static electricity. It is important to discharge static
electricity before refueling because sparks resulting from static electricity can
cause fuel vapors to ignite while refueling.
●Always hold the grips on the fuel tank cap and turn it slowly to remove it. 
A whooshing sound may be heard when the fuel tank cap is loosened. Wait until
the sound cannot be heard before fully re moving the cap. In hot weather, pressur-
ized fuel may spray out of the filler neck and cause injury.
●Do not allow anyone that has not discharged static electricity from their body to
come close to an open fuel tank.
●Do not inhale vaporized fuel. 
Fuel contains substances that are harmful if inhaled.
●Do not smoke while refueling the vehicle. 
Doing so may cause the fuel to ignite and cause a fire.
●Do not return to the vehicle or touch an y person or object that is statically
charged. 
This may cause static electricity to build up , resulting in a possible ignition hazard.
■When refueling
Securely insert the fuel nozzle into the fuel filler neck. If fuel is added with the nozzle
slightly lifted away from the fuel filler neck, the automatic shut off function may not
operate, resulting in fuel overflowing from the tank.
■When replacing the fuel cap
Do not use anything but a genuine Lexus fuel tank cap designed for your vehicle.
Doing so may cause a fire or other incident which may result in death or serious
injury.

95
1-6. Refueling
1
Before driving
NOTICE
■Refueling
Do not spill fuel during refueling. 
Doing so may damage the vehicle, such as causing the emission control system to
operate abnormally or damaging fuel syst em components or the vehicle’s painted
surface.

96
1-7. Theft deterrent system
Immobilizer system
The vehicle’s keys have built-in transponder chips that prevent the hybrid
system from starting if a key has not been previously registered in the vehi
-
cle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
Without navigation system
The indicator light flashes after
the “P
OWER” switch has been
turned off to indicate that the
system is operating.
With navigation system The indicator light flashes after
the “P
OWER” switch has been
turned off to indicate that the
system is operating.

97
1-7. Theft deterrent system
1
Before driving
■System maintenance
The vehicle has a maintenance-free type immobilizer system.
■Conditions affecting operation
Depending on the surrounding environment a
nd conditions, the immobilizer sys-
tem may not operate properly. This may prevent the hybrid system from starting.
(  P. 4 9 )
■Certifications for the immobilizer system
For vehicles sold in the U.S.A.
FCC ID: NI4TMIMB-1
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol -
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this
device must accept any interference received, including interference that may
cause undesired operation.
For vehicles sold in Canada
Operation is subject to the following two conditions: (1) this device may not cause
inter
ference, and (2) this device must a ccept any interference, including interfer -
ence that may cause undesired operation of the device.
CAUTION
■Certifications for the immobilizer system
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
NOTICE
■To prevent damage to the key
Do not modify, remove or disable the system. If any unauthorized changes or modi-
fications are made, the proper operation of the system cannot be guaranteed.

98
1-7. Theft deterrent system
Alarm
The system sounds the alarm and flashes the lights when forced entry is
detected.
■Triggering of the alarm
The alarm is triggered in the following situations:
●A lock
ed door or trunk is unlocked or opened in any way other
than using the entry function, wi reless remote control or mechan -
ical key with the alarm being set. (The doors will lock again au
to-
matically.)
● The hood is opened with the alarm being set.
■ Setting the alarm sy
stem
Without navigation system
Close the doors, trunk and hood,
and lock all the doors using the
entry function 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.
With navigation system
Close the doors, trunk and hood,
and lock all the doors using the
entry function 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.

99
1-7. Theft deterrent system
1
Before driving
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the
fo
llowing:
●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.
■Tr i g g e r i n g o f t h e a l a r m
The alarm may be triggered in the
following situations:
(Stopping the alarm deactivates the alarm system.)
■ Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarms:
●U
nlock the doors or trunk using the entry function, wireless
remote control or mechanical key.
● Star
t the hybrid system. (The alarm will be deactivated or stopped
after a few seconds.)
●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.

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1-7. Theft deterrent system
Theft prevention labels (for U.S.A.)
These labels are attached to the
vehicle to reduce vehicle theft
by facilitating the tracing and
recovery of parts from stolen
vehicles. Do not remove under
penalty of law.