1996 Pontiac Trans Sport Owner's Manual - Page 298

Temperature -- A, B, C :>,;-> . I," I' 1 Wheel Alignment and 1 *eBalance The temperature gradesare A (the highest),B, and ~ C , representing the tire's resistance to the generationof heat and its ability dissipate heat when to tested un&er controlled conditions on a specified indoor laboratry test wheel. Sustained high temperature can cause t e material of the tireto degenerate and reduce tire lifp, and excessive temperature can lead sudden tire to failure, The grade C corresponds to a levlelof ; performance which all passenger car tires meet must under the Federal MotorVehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel; than the minimum required by law. 4 ~ The wheels on your vehicle were aligned balanced and carefully at the factory give you the longest tire life to and best overall performance. In most cases, you will not need have your wheels to aligned again.However, if you notice unusual tire wear or your vehicle pulling one way or the other, the alignment may need to be reset. you notice your If vehicle vibrating when driving onsmooth road,your a wheels may need to be rebalanced. b . ' 1 ~ I .(' 1 . , ., Warning: The temperature grade for this tire is established fora tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or combination, in can cause heat buildup and possible tire failure 1, -..-* -? , .d. .l .- &.,% j !. .. .,I , I /; !., -: ; (' I :I . , 6-42 >,, kq.r7'. :..;, ,.