2010 Lexus HS250h key

TABLE OF CONTENTSIndex
2
1-1. Hybrid systemHybrid system ................................... 24
Hybrid system precautions ......... 27
Energy monitor/consumption screen................................................ 32
Hybrid vehicle driving tips........... 37
1-2. Key information Keys ...................................................... 39
1-3. Opening, closing and locking 
the doors
Smart access system with  push-button start .......................... 44
Wireless remote control .............. 54
Doors.................................................... 57
Trunk..................................................... 60
1-4. Adjustable components (seats, mirrors, steering wheel)
Front seats .......................................... 64
Driving position memory 
(driver’s seat) ................................. 68
Head restraints................................... 71
Seat belts ............................................ 73
Steering wheel.................................. 79
Inside rear view mirror................... 81
Outside rear view mirrors .......... 83 1-5. Opening and closing the windows
and moon roof
Power windows................................ 86
Moon roof .......................................... 89
1-6. Refueling Opening the fuel tank cap........... 92
1-7. Theft deterrent system Immobilizer system ........................ 96
Alarm.................................................... 98
Theft prevention labels 
(for U.S.A.) .................................... 100
1-8. Safety information Correct driving posture .............. 101
SRS airbags ..................................... 103
Front passenger occupant 
classification system .................... 115
Child restraint sy stems ............... 120
Installing child restraints ............. 124
2-1. Driving procedures Driving the vehicle ........................ 136
Power (ignition) switch ............... 145
EV drive mode ............................... 150
Hybrid transmission ..................... 153
Turn signal lever............................. 159
Parking brake ................................. 160
1Before driving
2When driving

1
2
3
4
5
6
7
5
4-2. MaintenanceMaintenance 
requirements.............................. 409
General maintenance ................... 411
Emission inspection and 
maintenance (I/M) 
programs ....................................... 415
4-3. Do-it-yourself maintenance Do-it-yourself service 
precautions ................................... 416
Hood................................................... 419
Positioning a floor jack............... 420
Engine compartment.................. 422
12-volt battery................................ 433
Tires ................................................... 437
Tire inflation pressure................. 445
Wheels.............................................. 448
Air conditioning filter................. 450
Electronic key battery ................ 453
Checking and replacing 
fuses ................................................ 455
Headlight aim 
(LED headlights) ....................... 467
Light bulbs ....................................... 469 5-1. Essential information
Emergency flashers .................... 482
If your vehicle needs to be 
towed ............................................ 483
If you think something is 
wrong ............................................ 489
Event data recorder.................... 490
5-2. Steps to take in an emergency If a warning light turns on 
or a warning buzzer 
sounds... ......................................... 492
If a warning message is 
displayed........................................ 501
If you have a flat tire...................... 521
If the hybrid system will not 
start ................................................ 530
If you lose your keys .................... 532
If the electronic key does 
not operate prop erly ............... 533
If the vehicle 12-volt battery 
is discharged ............................... 536
If your vehicle overheats ............ 541
If the vehicle becomes 
stuck................................................ 545
5When trouble arises

20
CAUTION
■General precautions while driving
Driving under the influence: Never drive your vehicle when under the influence of
alcohol or drugs that have impaired your ability to operate your vehicle. Alcohol
and certain drugs delay reaction time, im pair judgment and reduce coordination,
which could lead to an accident that could result in death or serious injury.
Defensive driving: Always drive defensively. Anticipate mistakes that other drivers
or pedestrians might make and be ready to avoid accidents.
Driver distraction: Always give your full at tention to driving. Anything that distracts
the driver, such as adjusting controls, ta lking on a cellular phone or reading can
result in a collision with resulting death or serious injury to you, your occupants or
others.
■General precaution regarding children’s safety
Never leave children unattended in the vehi cle, and never allow children to have or
use the key.
Children may be able to start the vehicle or shift the vehicle into neutral. There is
also a danger that children may injure th emselves by playing with the cigarrette
lighter, the windows, the moon roof, or other features of the vehicle. In addition, heat
build-up or extremely cold temperatures insi de the vehicle can be fatal to children.
■Disposal of the hybrid battery (traction battery)
If your vehicle is disposed of without the hybrid battery having been removed, there
is a danger of serious electric shock if high voltage parts, cables and their connec-
tors are touched. In the event that your ve hicle must be disposed of, the hybrid bat-
tery must be disposed of by your Lexus dealer or a qualified service shop. If the
hybrid battery is not disposed of properly, it may cause electric shock that can result
in death or serious injury.

Before driving1
23
1-1. Hybrid systemHybrid system ............................ 24
Hybrid system precautions .... 27
Energy monitor/ 
consumption screen ............. 32
Hybrid vehicle driving tips...... 37
1-2. Key information Keys ............................................... 39
1-3. Opening, closing and locking the doors
Smart access system with 
push-button start .................... 44
Wireless remote control ......... 54
Doors ............................................ 57
Trunk ............................................. 60
1-4. Adjustable components
(seats, mirrors, steering
wheel)
Front seats ................................... 64
Driving position 
memory (driver’s seat).......... 68
Head restraints ........................... 71
Seat belts ..................................... 73
Steering wheel ........................... 79
Inside rear view mirror ............. 81 Outside rear view mirrors...... 83
1-5. Opening and closing the 
windows and moon roof
Power windows .......................... 86
Moon roof ................................... 89
1-6. Refueling Opening the fuel tank cap ..... 92
1-7. Theft deterrent system Immobilizer system .................. 96
Alarm............................................ 98
Theft prevention labels 
(for U.S.A.) ............................. 100
1-8. Safety information Correct driving posture ........ 101
SRS airbags .............................. 103
Front passenger occupant 
classification system............. 115
Child restraint systems ......... 120
Installing child restraints....... 124

39
1
Before driving
1-2. Key information
Keys
The following keys are provided with the vehicle.
Electronic keys
• Operating the smart access system with push-button start
( P. 4 4 )
• Operating the wireless re
mote control function 
( P. 5 4 )
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped)
Operating the smart access sys -
tem with push-button start 
(  P. 4 4 )
The card key comes with an
information car
d that includes
instructions for use. Lexus rec -
ommends that you carry the
information car
d with the card
key.

40
1-2. Key information
Using the mechanical key
To take out the mechanical key:
Electronic keys: Slide the release
le
ver and take the key out.
Card key: Press the lock release
button and tak
e 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 cannot be inserted in a lock
cylinder, turn it over and re-attempt
to insert it.
After using the mechanical key,
stor
e it in the electronic key. Carry
the mechanical key together with
the electronic key. If the electronic
key battery is depleted or the entry
function does not operate properly,
you will need the mechanical key. 
(  P. 5 3 3 )
■Card key
●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 difficult to pull it out, use a coin etc.
●To store the mechanical key in the card
key, insert it while pressing the lock
release button.

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1-2. Key information
1
Before driving
●The card key is not waterproof.
■When required to leave the vehicle’s key with a parking attendant
Turn the luggage security system on as circumstances demand. (P. 3 6 4 ) 
Remove the mechanical key for your own use and provide the attendant with the
electronic key only.
■Key number plate
Keep the plate in a safe place such as your wallet, not in the vehicle. In the event that
a mechanical key is lost, a new key can be made at your Lexus dealer using the key
number plate. ( P. 5 3 2 )
■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.
●If the battery cover is not installed and
the battery falls out or if the battery was
removed because the key got wet, rein-
stall the battery with the positive termi-
nal facing the Lexus emblem.

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1-2. Key information
NOTICE
■To prevent key damage
Observe the following:
●Do not drop the keys, subject them to strong shocks or bend them.
●Do not expose the keys to high temperatures for long periods of time.
●Do not get the keys wet or wash them in an ultrasonic washer etc.
●Do not attach metallic or magnetic materials to the keys or place the keys close to
such materials.
●Do not disassemble the keys.
●Do not attach a sticker or anything else to the surface of the electronic key.
●Do not place the keys near objects that produce magnetic fields, such as TVs,
audio systems and glass top ranges, or medi cal electrical equipment, such as low-
frequency therapy equipment.
■Carrying the electronic key on your person
Carry the electronic key 3.9 in. (10 cm) or more away from electric appliances that
are turned on. Radio waves emitted from electric appliances within 3.9 in. (10 cm)
of the electronic key may interfere with the key, causing the key to not function
properly.
■In case of a smart access system with push-button start malfunction or other key-
related problems
Take your vehicle with all the electronic ke ys provided with your vehicle, including
the card key, to your Lexus dealer.
■When a vehicle key is lost
If the key remains lost, the risk of vehicl e theft increases significantly. Visit your
Lexus dealer immediately with all remaining electronic keys and the card key that
was provided with your vehicle.