2002 Lexus GS 430 User Guide 1 - Page 57

DUNLOP TIRE LIMITED WARRANTY W A R R A N T Y Evidence of air loss or repeated underinflation always requires expert inspection to determine the source of leakage and tire removal to determine repairability. To avoid injury, never attempt to reinflate a tire that has been run severely underinflated or may be damaged. Progressive air loss may result from punctures, cuts, impacts, rim cracks, curbing or partial bead unseating. Some fitment causes for air loss are: (1) incomplete bead seating, (2) bead tear caused by a machine tool due to insufficient lubrication or improper adjustment, (3) leaking valve core or rubber valve components. These should be replaced when problems are detected and whenever tires are replaced. Underinflation is the most common cause of failures in any kind of tire and may result in severe cracking, component separation or "blowout," with unexpected loss of vehicle control and accident. Underinflation increases sidewall flexing and rolling resistance resulting in heat and mechanical damage. Always maintain inflation pressure at the level recommended by the vehicle manufacturer as shown on the vehicle placard or in the owner's manual. Higher inflation pressure increases stiffness, which may deteriorate ride and generate unwanted vibration. Overinflation also increases the chances of bruise damage. Don't Overload Your Vehicle Check your vehicle owner's manual to determine the load limits. Overloading your vehicle places stress on your tires and other critical vehicle components. Overloading can cause tire failure. Overloading a vehicle can also cause poor handling and increase fuel consumption. Never fit tires that have less load capacity than shown on the vehicle tire placard or original-equipment tire sidewalls. 57 Y o u r W a r r a n t i e s i n D e t a i l