lights Lexus HS250h 2012 Service Manual

225
2-4. Using other driving systems
2
When driving
HS250h_U_75050U
■Automatic cancelation of constant speed control
The cruise control will stop maintaining the vehicle speed in the following situations:
●Actual vehicle speed is more than approximately 10 mph (16 km/h) below the
set vehicle speed.
At this time, the memorized set speed is not retained.
●Vehicle speed falls below approximately 25 mph (40 km/h).
●Enhanced VSC is activated.
■Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-vehicle
distance control operates properly. (Some obstructions, such as snow, ice and plas-
tic objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canceled if an obstruction is detected.
■Warning lights, messages and buzzers for dynamic radar cruise control
Warning lights, messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for caution while driving. (→P. 503, 513, 516)
Grille cover
Radar sensor

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2-4. Using other driving systems
HS250h_U_75050U
●When the lane lines cannot be recognized while driving.
●The wiper operates continuously.
●When the lane departure warning function is activated.
The lane departure warning function will be temporarily canceled and will not
resume until a few seconds elapse after it is activated.
■No-handed driving warning
If the steering wheel is not operated for about 15 seconds on a straight road or
about 5 seconds on a curve, the buzzer will beep twice, indicators on the multi-
information display will flash, and the lane keeping assist function will be temporarily
canceled. If you drive the vehicle with your hands lightly touching the steering
wheel, this may also be detected as no-handed driving.
■When the vehicle has been parked in the sun
The LKA system functions may not be available for a while after driving has started.
In such cases, turn the LKA system off and turn it on again after normal temperature
returns. When the temperature in the cabin decreases and the temperature around
the camera sensor becomes suitable for its operation, the functions will begin to
operate.
■Warning lights and messages for LKA
Warning lights and messages are used to indicate a system malfunction or to inform
the driver of the need for caution while driving. (→P. 5 0 3 , 5 1 6 )

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2-4. Using other driving systems
HS250h_U_75050U
NOTICE
■In the following situations, the LKA will not work, or will not perform reliably:
●When lane markers are interrupted or are not present, such as before a tollbooth.
●When lane markers are only on one side of the road.
●When driving on a sharp curve.
●When lanes are extremely narrow or extremely wide.
●When the vehicle leans to one side an unusual amount due to a heavy load or
improper tire inflation pressure.
●When the following distance between your vehicle and the vehicle ahead is
extremely short.
●When the lane markers are broken, “Botts’ dots”, or “Raised pavement marker”.
●When lane markers are obscured or partially obscured by sand, dirt, etc.
●When driving on a particularly bright road surface, such as concrete.
●When driving on a road surface that is bright due to reflected light.
●When driving in a location where the light level changes rapidly, such as the
entrance to or exit from a tunnel.
●When sunlight or the headlights of oncoming vehicles are shining directly into the
camera lens.
●When driving on roads that are branching or merging.
●When pavement lane markers are difficult to see due to rain, snow, fog, etc.
●When driving on a road surface that is wet due to rain, previous rainfall, standing
water, etc.
●When the vehicle experiences strong up-and-down motion such as when driving
on an extremely rough road or on a seam in the pavement.
●When headlight brightness is reduced due to dirt on the lenses, or when the
headlights are misaligned.
●When driving with a strong crosswind.

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2-4. Using other driving systems
2
When driving
HS250h_U_75050U
Hill-start assist control
■Hill-start assist control can be operated when
●The shift position is in a position other than P.
●The parking brake is not applied.
●The accelerator pedal is not depressed.
■Hill-start assist control
●While hill-start assist control is operating, the brakes remain automatically
applied after the driver releases the brake pedal. The stop lights and the high
mounted stoplight turn on.
●Hill-start assist control operates for about 2 seconds after the brake pedal is
released.
●If the slip indicator does not flash and the buzzer does not sound when the brake
pedal is further depressed, slightly reduce the pressure on the brake pedal (do
not allow the vehicle to roll backward) and then firmly depress it again. If the sys-
tem still does not operate, check if the operating conditions explained above
have been met.
Hill-start assist control helps to prevent the vehicle from rolling backwards
when starting on an incline or slippery slope.
To engage hill-start assist con-
trol, further depress the brake
pedal when the vehicle is
stopped completely.
A buzzer will sound once to
indicate the system is activated.
The slip indicator will also start
flashing.

Interior features3
265
HS250h_U_75050U
3-3. Using the Bluetooth® audio
system
Bluetooth
® audio system ... 325
Using the Bluetooth® audio
system .................................... 328
Operating a Bluetooth
®
enabled portable player... 333
Setting up a Bluetooth
®
enabled portable player.... 336
Bluetooth
® audio system
setup ......................................... 341
3-4. Using the hands-free phone system (for cellular phones)
Hands-free system for cellular phones..................... 342
Using the hands-free system (for cellular phones) ........... 346
Making a phone call .............. 354
Setting a cellular phone ....... 359
Security and system setup ........................................ 364
Using the phone book.......... 368
3-5. Using the interior lights Interior lights list ..................... 374
• Interior lights ........................ 375
• Personal lights ...................... 375 3-6. Using the storage features
List of storage features.......... 377
• Glove box .............................. 378
• Console box ......................... 379
• Cup holders ........................... 381
• Bottle holders....................... 383
• Auxiliary boxes .................... 384
3-7. Other interior features Sun visors ................................. 385
Vanity mirrors ......................... 386
Clock ......................................... 387
Power outlets .......................... 388
Seat heaters and ventilators ............................. 389
Armrest ..................................... 391
Rear sunshade ........................ 392
Floor mat .................................. 394
Trunk compartment features .................................. 396
Garage door opener ............ 398
Compass .................................. 404
Safety Connect ...................... 408

374
HS250h_U_75050U
3-5. Using the interior lights
Interior lights list
Front interior lights (→P. 375)
Personal lights ( →P. 375)
Remote touch light (when the “POWER” switch is in ACCESSORY
or ON mode)
Rear interior light
Door courtesy lights
Scuff lights (if equipped)
Footwell lights
Outer foot lights

375
3-5. Using the interior lights
3
Interior features
HS250h_U_75050U
Interior lightsFront Turns the lights on/off linked to
door positions
Turns the lights on/off
Rear Turns the light on
Turns the light on/off linked to
door positions
Personal lights
Turns the light on/off
Interior lights and personal lights

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3-5. Using the interior lights
HS250h_U_75050U
■Illuminated entry system
The lights automatically turn on/off according to “POWER” switch mode, the pres-
ence of the electronic key, whether the doors are locked/unlocked, and whether
the doors are opened/closed.
■To prevent 12-volt battery discharge
If the interior lights remain on when the door is not fully closed and the interior light
switch (door position on/ off) is on, the lights will go off automatically after 20 min-
utes.
■Customization
Settings (e.g. the time elapsed before the lights turn off) can be changed. (Custom-
izable features →P. 5 8 4 )
Personal lights

386
3-7. Other interior features
HS250h_U_75050U
Vanity mirrors
NOTICE
■To prevent 12-volt battery discharge
Do not leave the vanity lights on for extended periods while the hybrid system is off.
Slide the cover to open.
The light turns on when the
cover is opened.

419
4-1. Maintenance and care
4
Maintenance and care
HS250h_U_75050U
NOTICE
■To prevent paint deterioration and corrosion on the body and components (alu-
minum wheels etc.)
●Wash the vehicle immediately in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If you see coal tar or tree sap on the paint surface
• If you see dead insects, insect droppings or bird droppings on the paint
• After driving in an area contaminated with soot, oily smoke, mine dust, ironpowder or chemical substances
• If the vehicle becomes heavily soiled in dust or mud
• If liquids such as benzene and gasoline are spilled on the paint surface
●If the paint is chipped or scratched, have it repaired immediately.
●To prevent the wheels from corroding, remove any dirt and store in a place with
low humidity when storing the wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use organic substances or scrub with a hard brush.
This may damage the surface of the lights.
●Do not apply wax to the surfaces of the lights.
Wax may cause damage to the lenses.
■When using an automatic car wash (vehicles with rain-sensing windshield wipers)
Set the wiper switch to the off position.
If the wiper switch is in “AUTO”, the wipers may operate and the wiper blades may
be damaged.
■High pressure car washes (vehicles with wide view front monitor system and/or
rear view monitor system)
When washing the vehicle, do not apply intensive bursts of water to the camera or
camera area. Doing so may result in the camera malfunctioning.