2010 Lexus HS250h lock

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2-4. Using other driving systems
2
When driving
HS250h_U_75033U(Canada)
Driving assist systems
To help enhance driving safety and performance, the following systems
operate automatically in response to various driving situations. Be aware,
however, that these systems are supplementary and should not be relied
upon too heavily when operating the vehicle.
■ ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface
■Brake assist
Generates an increased level of braking force after the brake pedal is
depressed when the system detects a panic stop situation
■VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning on
slippery road surfaces
■TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from spinning
when starting the vehicle or accelerating on slippery roads
■EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn
the steering wheel
■Enhanced VSC (Enhanced vehicle stability control)
Provides cooperative control of the ABS, TRAC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery road sur-
faces by controlling steering performance.
■PCS (Pre-Collision System) (if equipped)
→ P. 2 3 2

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2-4. Using other driving systems
2
When driving
HS250h_U_75033U(Canada)
●Pre-collision braking:
• The pre-collision braking off button is not pressed.
• Vehicle speed is greater than about 9 mph (15 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehiclerunning ahead of you is greater than about 9 mph (15 km/h).
●Pre-collision alert braking (vehicle with driver monitor system):
• The pre-collision braking off button is not pressed.
• The system determines that the driver is not facing forward.
• Vehicle speed is greater than about 9 mph (15 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehiclerunning ahead of you is greater than about 24 mph (40 km/h).
■Conditions that may trigger the system even if there is no danger of a collision
●When there is an object by the roadside at the entrance to a curve
●When passing an oncoming vehicle on a curve
●When driving over a narrow iron bridge
●When there is a metal object on the road surface
●When driving on an uneven road surface
●When passing an oncoming vehicle on a left-turn
●When your vehicle rapidly closes on the vehicle in front
When the system is activated in the situations described above, there is also a possi-
bility that the seat belts will roll up quickly and the brakes will be applied with a force
greater than normal. When the seat belt is locked in the retracted position, stop the
vehicle in a safe place, release the seat belt and refasten it.
■Obstacles not detected
The sensor cannot detect plastic obstacles such as traffic cones. There may also be
occasions when the sensor cannot detect pedestrians, animals, bicycles, motorcy-
cles, trees, or snowdrifts.
■When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. ( →P. 493, 502, 505)

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2-4. Using other driving systems
HS250h_U_75033U(Canada)
CAUTION
■When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary in any of the following situations.
●When water or snow thrown up by the surrounding vehicles hinders the function-
ing of the sensor
●When your vehicle is pointing upwards (caused by a heavy load in the luggage
compartment etc.)
●Vehicles that cut in suddenly
●Vehicles with small rear ends (trailers with no load on board etc.)
●Motorcycles traveling in the same lane
■Handling the radar sensor
Observe the following to ensure the pre-collision system can function effectively:
●Keep the sensor and front grille cover clean at all times.
Clean the sensor and front grille cover with a soft cloth so you do not mark or
damage them.
●Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may malfunction. If the
sensor or surrounding area is subject to a strong impact, always have the area
inspected and adjusted by your Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor, grille cover or surrounding
area.
●Do not modify or paint the sensor and grille cover.
■Determining the direction the driver is facing (vehicles with driver monitor sen-
sor)
The direction the driver is facing may not be determined correctly if the following
conditions exist:
●There is an object between the driver monitor sensor and the driver’s face, such
as when the sensor is blocked.
●A part of the driver’s face is covered.
●The sensor or the driver’s face is exposed to intense light such as sunlight.
●The driving posture is improper.

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2-5. Driving information
HS250h_U_75033U(Canada)
CAUTION
■Things that must not be carried in the trunk
The following things may cause a fire if loaded in the trunk:
●Receptacles containing gasoline
●Aerosol cans
■Storage precautions
Observe the following precautions.
Failing to do so may result in death or serious injury.
●Stow cargo and luggage in the trunk whenever possible.
●Do not place cargo or luggage in or on the following locations as the item may
get under the brake or accelerator pedal and prevent the pedals from being
depressed properly, block the driver’s vision, or hit the driver or passengers,
causing an accident:
• At the feet of the driver
• On the front passenger or rear seats (when stacking items)
• On the package tray
• On the instrument panel
•On the dashboard
●Secure all items in the occupant compartment, as they may shift and injure some-
one during sudden braking, sudden swerving or an accident.
■Capacity and distribution
●Do not exceed the maximum axle weight rating or the total vehicle weight rating.
●Even if the total load of occupant’s weight and the cargo load is less than the total
load capacity, do not apply the load unevenly. Improper loading may cause dete-
rioration of steering or braking control which may cause death or serious injury.

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2-5. Driving information
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When driving
HS250h_U_75033U(Canada)
Selecting tire chainsUse the correct tire chain size when mounting the tire chains. Chain size
is regulated for each tire size. Side chain:0.12 in. (3 mm) in diameter
Cross chain: 0.16 in. (4 mm) in diameter
Regulations on the use of tire chains
Regulations regarding the use of tire chains vary depending on location
and type of road. Always check local regulations before installing chains.
■ When parking the vehicle
Park the vehicle and push the P position switch and block the wheel
under the vehicle without setting the parking brake. The parking
brake may freeze up, preventing it from being released. If necessary,
block the wheels to prevent inadvertent sliding or creeping.
■Tire chain installation
Observe the following precautions when installing and removing chains:
●Install and remove tire chains in a safe location.
●Install tire chains on the front tires only. Do not install tire chains on the rear tires.
●Install tire chains on front tires as tightly as possible. Retighten chains after driv-
ing 1 /4  1 /2 mile (0.5  1.0 km).
●Install tire chains following the instructions provided with the tire chains.

Interior features3
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HS250h_U_75033U(Canada)
3-3. Using the Bluetooth® audio
system
Bluetooth
® audio system ...... 311
Using the Bluetooth®
audio system .......................... 314
Operating a Bluetooth
®
enabled portable player..... 319
Setting up a Bluetooth
®
enabled portable player... 322
Bluetooth
® audio system
setup ........................................ 327
3-4. Using the hands-free phone system (for cellular phones)
Hands-free system for cellular phones.................... 328
Using the hands-free system (for cellular
phones) .................................. 332
Making a phone call ............. 340
Setting a cellular phone ....... 345
Security and system setup ....................................... 350
Using the phone book........... 354 3-5. Using the interior lights
Interior lights list .................... 360
• Interior lights ......................... 361
• Personal lights ...................... 361
3-6. Using the storage features List of storage features......... 363
• Glove box .............................. 364
• Console box ......................... 365
• Cup holders .......................... 367
• Bottle holders....................... 369
• Auxiliary boxes .................... 370
3-7. Other interior features Sun visors .................................. 371
Vanity mirrors ......................... 372
Clock ......................................... 373
Power outlets ........................... 374
Seat heaters and ventilators ............................. 375
Armrest ..................................... 377
Rear sunshade ........................ 378
Floor mat .................................. 380
Trunk compartment features ................................... 381
Garage door opener ............ 383
Compass ................................... 391
Safety Connect ...................... 395

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3-1. Using the air conditioning system and defogger
HS250h_U_75033U(Canada)
■Using the system in recirculated air mode
The windows will fog up more easily if recirculated air mode is used.
■Window defogger feature
Recirculated air mode may automatically switch to (outside air) mode in sit-
uations where the windows need to be defogged.
■When micro dust and pollen filter is active
●In order to prevent the windshield from fogging up when the outside air is cold,
the following may occur:
• Outside air mode does not switch to (recirculated air) mode.
• The air conditioning system operates automatically.
• The operation cancels after 1 minute.
●In rainy weather, the windows may fog up. Press .
■When outside air temperature is below 32°F (0 °C)
The cooling and dehumidification function may not operate even when
is
pressed.
CAUTION
■To prevent the windshield from fogging up
Do not use
during cool air operation in extremely humid weather. The dif-
ference between the temperature of the outside air and that of the windshield can
cause the outer surface of the windshield to fog up, blocking your vision.

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3-2. Using the audio system
3
Interior features
HS250h_U_75033U(Canada)
Adjusting sound quality and volume balance■ Changing sound quality modes
Press .
Pressing the button changes sound modes in the following order:
“BAS”→ “MID”→“TRE”→“FAD” →“BAL”→ “A S L ”
■ Adjusting sound quality
Turning adjusts the level.
*: The sound quality level is adjusted individually in each audio mode.
Mode
displayedSound qual- ity modeLevelTurn counter- clockwiseTu r n c l o c k - wise
“BAS”Bass*-5 to 5
LowHigh“MID”Mid-range*-5 to 5
“TRE”Tr e b l e*-5 to 5
“FAD”
Front/rear volume
balance
F7 to R7Shifts to rearShifts to front
“BAL”
Left/right volume
balance
L7 to R7Shifts to leftShifts to right