tow Lexus IS250 2010 Owner's Guide

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2-5. Driving information
IS350/250_U
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 use of tow hitch mounted carriers.

215
2-5. Driving information
2
When driving
IS350/250_U
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.

216
2-5. Driving information
IS350/250_U
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 3 6 )
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
2
When driving
IS350/250_U
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.

299
3-4. Using the hands-free phone system (for mobile phones)
3
Interior features
IS350/250_U
■Conditions under which the system will not operate
●If using a mobile phone that does not support Bluetooth®
●If the mobile phone is switched off
●If you are outside service range
●If the mobile phone is not connected
●If the mobile phone's battery is low
●If the mobile phone is behind the seat or in the glove box or console box
●If metal is covering or touching the phone
■When using the hands-free system
●The audio system and voice guidance are muted when making a call.
●If both parties speak at the same time, it may be difficult to hear.
●If the incoming call volume is overly loud, an echo may be heard.
●Try to face toward the microphone as much as possible when speaking.
●In the following circumstances, it may be difficult to hear the other party:
• When driving on unpaved roads
• When driving at high speeds
• When a window is open
• When the air conditioning is blowing directly on the microphone
• When the air conditioning is set to high
■When transferring ownership of the vehicle
Be sure to initialize the system to prevent personal data from being improperly
accessed. (→P. 3 2 1 )
■About Bluetooth®
Bluetooth is a registered trademark of
Bluetooth SIG. Inc.

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3-7. Other interior features
3
Interior features
IS350/250_U■
Circling calibration
When “C” appears on the display,
drive the vehicle at 5 mph (8 km/h)
or less in a circle until a direction is
displayed.
If there is not enough space to
drive in a circle, drive around the
block until the direction is dis-
played.
■Conditions unfavorable to correct operation
The compass may not show the correct di rection in the following conditions:
●The vehicle is stopped immediately after turning.
●The vehicle is on an inclined surface.
●The vehicle is in a place where the earth's magnetic field is subject to interfer-
ence by artificial magnetic fields (underground car park/parking lot, under a
steel tower, between buildings, roof car park/parking lot, near an intersection,
near a large vehicle, etc.).
●The vehicle has become magnetized.
(There is a magnet or metal object near the inside rear view mirror.)
●The battery has been disconnected.
●A door is open.

377
3-7. Other interior features
3
Interior features
IS350/250_U■
Stolen Vehicle Location
If your vehicle is stolen, Safety Connect can work with local authorities
to assist them in locating and recovering the vehicle. After filing a
police report, call the Safety Connect response center at 1-800-25-
LEXUS (1-800-255-3987) and follow the prompts for Safety Con-
nect to initiate this service.
In addition to assisting law enforcement with recovery of a stolen vehi-
cle, Safety-Connect-equipped vehicle location data may, under cer-
tain circumstances, be shared with third parties to locate your vehicle.
Further information is available at Lexus.com.
■ Emergency Assistance Button (“SOS”)
In the event of an emergency on the road, push the “SOS” button to
reach the Safety Connect response center. The answering agent will
determine your vehicle’s location, assess the emergency, and dispatch
the necessary assistance required.
If you accidentally press the “SOS” button, tell the response-center agent
that you are not experiencing an emergency.
■Enhanced Roadsi de Assistance
Enhanced Roadside Assistance adds GPS data to the already
included warranty-based Lexus road side service.
Subscribers can press the “SOS” button to reach a Safety Connect
response-center agent, who can help with a wide range of needs, such
as: towing, flat tire, fuel delivery, etc. For a description of the Enhanced
Roadside Assistance services and their limitations, please see the
Safety Connect Terms and Conditions, which are available at
Lexus.com.

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IS350/250_U
4-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance yourself, be sure to follow the correct proce-
dure given in these sections.
ItemsParts and tools
Battery condition ( →P. 4 1 0)
•Warm water
• Baking soda
•Grease
•Conventional wrench
(for terminal clamp bolts)
Brake fluid level ( →P. 4 0 8 )
• FMVSS No.116 DOT 3 or SAE
J1703 brake fluid
•Rag or paper towel
• Funnel (used only for adding brake
fluid)
Engine coolant level ( →P. 4 0 6 )
• “Toyota Super Long Life Coolant”
or similar high-quality ethylene gly-
col-based non-silicate, non-amine,
non-nitrite and non-borate coolant
with long-life hybrid organic acid
technology.
For the U.S.A.:
“Toyota Super Long Life Coolant”
is pre-mixed with 50% coolant and
50% deionized water.
For Canada:
“Toyota Super Long Life Coolant”
is pre-mixed with 55% coolant and
45% deionized water.
• Funnel (used only for adding
engine coolant)

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4-3. Do-it-yourself maintenance
4
Maintenance and care
IS350/250_U
ItemsParts and tools
Engine oil level (→P. 4 0 3 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (→ P. 4 3 6 )• Fuse with same amperage rating as
original
Tire inflation pressure ( →P. 4 2 5 )• Tire pressure gauge
• Compressed air source
Headlight aim ( →P. 4 5 0 )• Phillips-head screwdriver
Radiator and condenser
(→ P. 4 0 8 )
Wa s h e r f l u i d ( →P. 4 1 3 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

When trouble arises5
459
IS350/250_U
5-1. Essential informationEmergency flashers............... 460
If your vehicle needs to be towed.................................. 461
If you think something is wrong .................................. 467
Fuel pump shut off system ..................................... 468
Event data recorder .............. 469 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds... ................................... 471
If a warning message is displayed................................ 480
If you have a flat tire............... 492
If the engine will not start ..... 501
If the shift lever cannot be shifted from P ....................... 503
If you lose your keys .............. 504
If the electronic key does not operate properly.......... 505
If the vehicle battery is discharged ............................ 509
If your vehicle overheats ...... 512
If the vehicle becomes stuck......................................... 515