Black plate (48,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-6081492) - 2014 - CRC 2nd Edition - 11/18/1310-48 Vehicle CareRadial Ply Tire : A pneumatictire in which the ply cords thatextend to the beads are laid at90 degrees to the centerline ofthe tread.Rim : A metal support for a tireand upon which the tire beadsare seated.Sidewall : The portion of a tirebetween the tread and the bead.Speed Rating : Analphanumeric code assigned toa tire indicating the maximumspeed at which a tire canoperate.Traction : The friction betweenthe tire and the road surface.The amount of grip provided.Tread : The portion of a tire thatcomes into contact withthe road.Treadwear Indicators : Narrowbands, sometimes called wearbars, that show across the treadof a tire when only 1.6 mm(1/16 in) of tread remains. SeeWhen It Is Time for New Tireson page 10-57.UTQGS (Uniform Tire QualityGrading Standards) : A tireinformation system that providesconsumers with ratings for atire's traction, temperature, andtreadwear. Ratings aredetermined by tiremanufacturers usinggovernment testing procedures.The ratings are molded into thesidewall of the tire. See UniformTire Quality Grading onpage 10-59.Vehicle Capacity Weight : Thenumber of designated seatingpositions multiplied by68 kg (150 lb) plus the ratedcargo load. See Vehicle LoadLimits on page 9-11.Vehicle Maximum Load on theTire : Load on an individual tiredue to curb weight, accessoryweight, occupant weight, andcargo weight.Vehicle Placard : A labelpermanently attached to avehicle showing the vehiclecapacity weight and the originalequipment tire size andrecommended inflation pressure.See “Tire and LoadingInformation Label” under VehicleLoad Limits on page 9-11.Tire PressureTires need the correct amount ofair pressure to operateeffectively.
