2010 Lexus IS 250 Owners Manual - Page 291

2010 Lexus IS 250 Manual

2-4. Using other driving systems CAUTION

Section	Page
Quick Reference Pictoral Index	1
Entering and Exiting	6
Before Driving	9
When Driving	12
Rain and Night Driving	23
Driving Comfort	27
Opening and Closing	72
What to do if	77
Customizing Your Lexus	82
Front	89
Pictorial Index	90
Foreword	101
Key Information	105
Opening, Closing And Locking The Doors And Trunk	109
Adjustable Components Seats, Mirrors, Steering Wheel	132
Opening And Closing The Windows And Retractable Hardtop	159
Refueling	171
Theft Deterrent System	174
Safety Information	179
Driving Procedures	212
Instrument Cluster	240
Operating The Lights And Windshield Wipers	254
Using Other Driving Systems	264
Driving Information	298
Using The Air Conditioning System And Defogger	310
Using The Audio System	319
Using The Bluetooth Audio System	369
Using The Hands-Free Phone System For Mobile Phones	387
Using The Interior Lights	418
Using The Storage Features	420
Other Interior Features	426
Maintenance And Care	459
Maintenance	465
Do-It-Yourself Maintenance	471
Essential Information	536
Steps To Take In An Emergency	547
Specifications	609
Customization	641
Initialization	646
Seat Belt Instructions For Canadian Owners In French	648
Abbreviation List	653
Alphabetical Index	655
What To Do IF...	665
Gas Station Information	667

Match case Limit results 1 per page

211

2-4. Using other driving systems

When driving

CAUTION

■

TRAC may not operate effectively when

Directional control and power may not be achievable while driving on slippery road

surfaces, even if the TRAC system is operating.

Do not drive the vehicle in conditions where stability and power may be lost.

■

When the VSC is activated

The slip indicator light flashes and a warning buzzer sounds. Always drive carefully.

Reckless driving may cause an accident. Exercise particular care when the indica-

tor light flashes and a buzzer sounds.

■

When TRAC and VSC are off

Be especially careful and drive at a speed appropriate to the road conditions. As

these are systems to ensure vehicle stability and driving force, do not turn off TRAC

and VSC unless necessary.

■

Replacing tires

Make sure that all tires are of the specified size, brand, tread pattern and total load

capacity. In addition, make sure that the tires are inflated to the recommended tire

pressure level.

The ABS and VSC systems will not function correctly if different tires are fitted on

the vehicle.

Contact your Lexus dealer for further information when replacing tires or wheels.

■

Handling of tires and suspension

Using tires with any kind of problem or modifying the suspension will affect the driv-

ing assist systems, and may cause the system to malfunction.