Lexus IS250 2009 Using the audio system / LEXUS 2009 IS350/250 OWNER'S MANUAL (OM53669U)

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2-5. Driving information
2
When drivingSelecting snow chainsSnow chains can be mounted on 16- and 17-inch tires. They cannot be
mounted on 18-inch tires. Use the correct snow chain size when mount-
ing the snow chains. Chain size is regulated for each tire sizes.
Side chain
(0.12 in. [3 mm] in diameter)
Cross chain
(0.16 in. [4 mm] in diameter)
Regulations on the use of snow chains
● Regulations regarding the use of tire chains vary according to location
and type of road. Always check local regulations before installing
chains.
● Install the chains on the rear tires.
● Retighten the chains after driving 1 /4  1 /2 mile (0.5  1.0 km).
■When driving the vehicle
Accelerate the vehicle slowly and dr ive at a reduced speed suitable
to road conditions.
■ When parking the vehicle
Park the vehicle and move the shift lever to P (automatic transmis-
sion) or R (manual transmission) without setting the parking brake.
The parking brake may freeze up, preventing it from being released.

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2-5. Driving information
■Snow 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 rear tires only. Do not install tire chains on front tires.
●Install the tire chains on rear tires as tightly as possible. Retighten chains after
driving 1 /4 - 1 /2 mile (0.5 - 1.0 km).
●Install tire chains following the instructions provided in the accompanying
instructions.
CAUTION
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in a loss of vehicle control and cause death or serious
injury.
●Use tires of the size specified for your vehicle.
●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 snow chains
Observe the following precautions to reduce the risk of accidents.
Failing 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.

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2-5. Driving information
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When driving
NOTICE
■Repairing or replacing snow tires
Request repairs of and obtain replacement snow tires from Lexus dealers or legiti-
mate tire retailers.
This is because the removal and attachment of snow tires affects the operation of
the tire air pressure sensor.
■Fitting tire chains
The tire air pressure sensor may not functi on correctly when tire chains are fitted.

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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, bicycle, etc. Your Lexus is not designed
for trailer towing or for the us e of tow hitch mounted carriers.

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

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2-5. Driving information
Dinghy towing (vehicles with a manual transmission)
Towing your vehicle with 4 wheels on the groundTo prevent damage to your vehicle, perform the following procedures
before towing. Shift the shift lever to neutral.
Switch to ACCESSORY mode. ( P. 1 2 8 )
Ensure that the audio system and other powered devices have been
turned off.
Release the parking brake.
After towing, leave the engine in idle for at least 3 minutes before driv-
ing the vehicle.
■Necessary equipment and accessories
Specialized equipment and accessories are required for dinghy towing. Contact
the service branch of the motor home manufacturer regarding recommended
equipment.
Your vehicle can be dinghy towed in a forward direction (with 4 wheels on
the ground) behind a motor home.
STEP1
STEP2
STEP3

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2-5. Driving information
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When driving
NOTICE
■Dinghy towing direction
■To prevent the steering from locking
Ensure the “ENGINE START STOP” switch is in ACCESSORY mode.
Do not tow the vehicle backwards.
Doing so may cause serious damage.

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2-5. Driving information

Interior features3
209
3-1. Using the airconditioning system
and defogger
Automatic air conditioning system............. 210
Rear window and outside rear view mirror
defoggers ............................... 218
3-2. Using the audio system Audio system type................... 219
Using the radio........................ 222
Using the CD player ............. 229
Playing back MP3 and WMA discs............................ 235
Optimal use of the audio system ...................................... 241
Using the AUX adapter ....... 244
Using the steering wheel audio switches ...................... 245
3-3. Using the interior lights Interior lights list ..................... 247
• Interior lights ........................ 249
• Personal lights ...................... 249 3-4. Using the storage
features
List of storage features.......... 251
• Glove box ................................ 251
• Console boxes ......................252
• Overhead console...............253
• Cup holders ...........................254
• Bottle holders/ door pockets ......................... 256
3-5. Other interior features Sun visors ................................. 257
Vanity mirror ........................... 258
Clock ......................................... 259
Satellite switches ................... 260
Ashtrays.................................... 263
Cigarette lighter .................... 264
Power outlet ............................ 265
Seat heaters ............................ 266
Seat heaters and ventilators ............................. 269
Armrest .................................... 272
Rear sunshade ........................ 273
Trunk storage extension ....... 275
Coat hooks ............................... 276
Floor mat ................................... 277
Trunk features ......................... 278
Garage door opener ............. 281
Compass .................................. 287

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3-1. Using the air conditioning system and defogger
Automatic air conditioning system
Using the automatic mode
Press .
The air conditioning system will begin to operate. Air outlets and fan
speed are automatically adjusted according to the temperature setting.
Press to switch to automatic mode. (IS350 only)
Automatically switches between outs ide air and recirculated air modes.
Air outlets and fan speed are automati cally adjusted according to the tem-
perature setting.
With navigation system
Owners of models equipped with a navigation system should refer to the
“Navigation System Owner's Manual”.
Without navigation system
Automatic mode
Driver’s side temperature
setting display Changes the air outlets used
Off Fan speed
Airflow display
Fan speed display
Passenger’s side
temperature setting displayMicro dust and
pollen filter
Driver's side
temperature control
Air conditioning on/off switch Outside air or recirculated modeWindshield defogger
Passenger’s side
temperature control
Dual operation switch
STEP1
STEP2