Black plate (75,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012Vehicle Care 10-75Remove the valve cap from thetire valve stem. Press the tiregauge firmly onto the valve toget a pressure measurement.If the cold tire inflation pressurematches the recommendedpressure on the Tire andLoading Information label, nofurther adjustment is necessary.If the inflation pressure is low,add air until the recommendedpressure is reached. If theinflation pressure is high, presson the metal stem in the centerof the tire valve to release air.Recheck the tire pressure withthe tire gauge.Return the valve caps on thevalve stems to prevent leaksand keep out dirt and moisture.Tire Pressure forHigh-Speed Operation{ WARNINGDriving at high speeds, 160 km/h(100 mph) or higher, puts anadditional strain on tires.Sustained high-speed drivingcauses excessive heat buildupand can cause sudden tire failure.You could have a crash and youor others could be killed. Somehigh-speed rated tires requireinflation pressure adjustment forhigh-speed operation. Whenspeed limits and road conditionsare such that a vehicle can bedriven at high speeds, make surethe tires are rated for high-speedoperation, in excellent condition,and set to the correct cold tireinflation pressure for thevehicle load.Vehicles with 255/40ZR19 or285/35ZR19 size tires requireinflation pressure adjustment whendriving the vehicle at speeds of160 km/h (100 mph) or higher.Set the cold inflation pressure tothe maximum inflation pressureshown on the tire sidewall, or300 kPa (44 psi), whichever is lower.See the example following. Returnthe tires to the recommendedcold tire inflation pressure whenhigh-speed driving has ended. SeeVehicle Load Limits on page 9‑12and Tire Pressure on page 10‑74.Example:The maximum load and inflationpressure is molded on the tiresidewall, in small letters, near therim flange. It will read somethinglike this: Maximum load 690 kg(1521 lbs) 300 kPa (44 psi) Max.Press.For this example, set the inflationpressure for high‐speed driving at300 kPa (44 psi).