Black plate (49,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-6081492) - 2014 - CRC 1st Edition - 7/2/13Vehicle Care 10-49of 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 10-60.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.{ CautionNeither tire underinflation noroverinflation is good.Underinflated tires, or tiresthat do not have enough air,can result in:. Tire overloading andoverheating which couldlead to a blowout.. Premature orirregular wear.. Poor handling.. Reduced fuel economy.Overinflated tires, or tires thathave too much air, canresult in:. Unusual wear.. Poor handling.. Rough ride.. Needless damage fromroad hazards.