Black plate (64,1)Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-6014443) - 2014 - CRC - 4/3/1310-64 Vehicle CareSummer Performance TiresMany General Motors highperformance models comefactory-equipped with tires thatare optimized for maximum dryand wet road performance whilestill retaining satisfactory treadlife, excellent durability, and lownoise levels. In severe winterclimates where snowfall may besignificant, these tires may befound to provide less traction.Summer TiresThis vehicle may come with highperformance summer tires. Thesetires have a special tread andcompound that are optimized formaximum dry and wet roadperformance. This special treadand compound will decreaseperformance in cold climates, andon ice and snow. We recommendinstalling winter tires on thevehicle if frequent driving in coldtemperatures or on snow or icecovered roads is expected. SeeWinter Tires on page 10-63.Tire Sidewall LabelingUseful information about a tire ismolded into its sidewall. Theexamples show a typicalpassenger vehicle tire and acompact spare tire sidewall.Passenger (P-Metric) Tire Example(1) Tire Size : The tire size is acombination of letters andnumbers used to define aparticular tire's width, height,aspect ratio, construction type,and service description. See the“Tire Size” illustration later in thissection.(2) TPC Spec (TirePerformance CriteriaSpecification) : Originalequipment tires designed toGM's specific tire performancecriteria have a TPC specificationcode molded onto the sidewall.GM's TPC specifications meet orexceed all federal safetyguidelines.(3) DOT (Department ofTransportation) : TheDepartment of Transportation(DOT) code indicates that thetire is in compliance withthe U.S. Department ofTransportation Motor VehicleSafety Standards.