2011 Lexus HS250h Do-it-yourself maintenance / LEXUS 2011 HS250H OWNERS MANUAL (OM75037U)

249
2-5. Driving information
2
When driving
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that are appropria te to the prevailing outside tempera-
tures.
• Engine oil
• Engine/power control unit coolant
• Washer fluid
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the front tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
■ Before driving the vehicle
Perform the following accord ing to the driving conditions:
● Do not try to forcibly open a w indow or move a wiper that is fro-
zen. Pour warm water over the frozen area to melt the ice. Wipe
away the water immediately to prevent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumu lated on the air inlet vents in
front of the windshield.
● Remove any ice that has accumul ated on the vehicle chassis.
● Periodically check for and remove any excess ice or snow that
may have accumulated in the wheel well or on the brakes.
■ When driving the vehicle
Accelerate the vehicle slowly and drive at a reduced speed suitable to the
road conditions.

250
2-5. Driving information
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 po sition switch without setting the
parking brake. The parking brake may freeze up, preventing it from
being released. If necessary, bl ock the wheels to prevent inadvert-
ent 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 tightl y 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.

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2-5. Driving information
2
When driving
CAUTION
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehicle control and cause death or serious
injury.
●Use tires of the size specified.
●Maintain the recommended level of air pressure.
●Do not drive in excess of 75 mph (120 km/h), regardless of the type of snow tires
being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used,
or 30 mph (50 km/h), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden turns and braking, as use of chains may adversely affect vehicle
handling.
●Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow ti res from Lexus dealers or legitimate tire
retailers.
This is because the removal and attachment of snow tires affects the operation of
the tire pressure warning valves and transmitters.
■Fitting tire chains
The tire pressure warning valves and transmitters may not function correctly when
tire chains are fitted.

252
2-5. Driving information
Trailer towing
Lexus does not recommend towing a trailer with your vehicle. Lexus also
does not recommend the installation of a tow hitch or the use of a tow hitch
carrier for a wheelchair, scooter, bicycl e, etc. Your vehicle is not designed
for trailer towing or for the us e of tow hitch mounted carriers.

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2-5. Driving information
2
When driving
Dinghy towing
NOTICE
■To avoid serious damage to your vehicle
Do not tow your vehicle with the four wheels on the ground.
Your vehicle is not designed to be dinghy towed (with 4 wheels on the
ground) behind a motor home.

254
3-1. Using the air conditioning system and defogger
Automatic air conditioning
system..................................... 256
Rear window defogger switch ...................................... 264
Windshield wiper de-icer .... 265
3-2. Using the audio system Audio system........................... 266
Using the radio ....................... 269
Using the CD player .............. 277
Playing MP3 and WMA discs......................................... 285
Operating an iPod ................. 292
Operating a USB memory.................................. 300
Optimal use of the audio
system..................................... 308
Using the AUX port ................ 311
Using the steering wheel
audio switches....................... 312
Interior features3

Interior features3
255
3-3. Using the Bluetooth® audio
system
Bluetooth
® audio system ..... 315
Using the Bluetooth® audio
system ...................................... 318
Operating a Bluetooth
®
enabled portable player... 323
Setting up a Bluetooth
®
enabled portable player.... 326
Bluetooth
® audio system
setup ......................................... 331
3-4. Using the hands-free phone system (for cellular phones)
Hands-free system for
cellular phones.................... 332
Using the hands-free system (for cellular phones) ........... 336
Making a phone call .............. 344
Setting a cellular phone ....... 349
Security and system setup ........................................ 354
Using the phone book.......... 358
3-5. Using the interior lights Interior lights list ..................... 364
• Interior lights ........................ 365
• Personal lights ...................... 365 3-6. Using the storage features
List of storage features.......... 367
• Glove box .............................. 368
• Console box ......................... 369
• Cup holders ........................... 371
• Bottle holders....................... 373
• Auxiliary boxes .................... 374
3-7. Other interior features Sun visors ................................. 375
Vanity mirrors .......................... 376
Clock .......................................... 377
Power outlets .......................... 378
Seat heaters and ventilators ............................. 379
Armrest ..................................... 381
Rear sunshade ........................ 382
Floor mat .................................. 384
Trunk compartment features .................................. 386
Garage door opener ............ 388
Compass .................................. 396
Safety Connect ...................... 400

256
3-1. Using the air conditioning system and defogger
Automatic air conditioning system
Air outlets and fan speed are automati cally adjusted according to the tem-
perature setting.
Vehicles with a navigation system
Owners of models equi pped with a navigation system should refer to
the “Navigation System Owner’s Manual”.
Vehicles without a navigation system
Automatic
mode button
Driver’s side
temperature display
Dual
mode
button
Fan speed control buttons Air outlet display
Fan speed display
Passenger’s side
temperature display
Driver’s side
temperature
control buttons Outside/recirculated air
mode buttonWindshield
defogger button Passenger’s side
temperature
control buttons
Micro dust
and pollen
filter mode
button
“OFF” button Air outlet selector button
Cooling and
dehumidification
function on/off
button