Black plate (87,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012Vehicle Care 10-87Temperature – A, B, CThe temperature grades areA (the highest), B, and C,representing the tire's resistanceto the generation of heat and itsability to dissipate heat whentested under controlledconditions on a specifiedindoor laboratory test wheel.Sustained high temperature cancause the material of the tire todegenerate and reduce tire life,and excessive temperature canlead to sudden tire failure.The grade C corresponds to alevel of performance which allpassenger car tires must meetunder the Federal Motor SafetyStandard No. 109. Grades B andA represent higher levels ofperformance on the laboratorytest wheel than the minimumrequired by law. Warning: Thetemperature grade for this tire isestablished for a tire that isproperly inflated and notoverloaded. Excessive speed,underinflation, or excessiveloading, either separately or incombination, can cause heatbuildup and possible tire failure.Wheel Alignment and TireBalanceThe tires and wheels were alignedand balanced at the factory toprovide the longest tire life and bestoverall performance. Adjustments towheel alignment and tire balancingwill not be necessary on a regularbasis. However, check thealignment if there is unusual tirewear or the vehicle is pulling to oneside or the other. If the vehicle isvibrating when driving on a smoothroad, the tires and wheels mightneed to be rebalanced. See yourdealer for proper diagnosis.CTS-V models should only useadhesive wheel weights to balancethe tires and wheels.