Cadillac 2010 SRX Crossover Owner's Manual

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Vehicle Care 9-61Vehicles with P235/65R18, P235/55R20, or 235/55R20 size tiresrequire inflation pressure adjustmentwhen driving your vehicle at speedsof 100 mph (160 km/h) or higher.Set the cold inflation pressure to themaximum inflation pressure shownon the tire sidewall, or 44 psi(300 kPa), whichever is lower. Whenyou end this high-speed driving,return the tires to the cold tireinflation pressure shown on the Tireand Loading Information label. SeeVehicle Load Limits on page 8‑11and Tire Pressure on page 9‑59.You will find the maximum load andinflation pressure molded on thetire's sidewall, in small letters, nearthe rim flange. It will read somethinglike this: Maximum load690 kg (1521 lbs) 300 kPa (44 psi)Max. Press.Tire Pressure MonitorSystemThe Tire Pressure Monitor System(TPMS) uses radio and sensortechnology to check tire pressurelevels. The TPMS sensors monitorthe air pressure in your vehicle'stires and transmit tire pressurereadings to a receiver located in thevehicle.Each tire, including the spare(if provided), should be checkedmonthly when cold and inflated tothe inflation pressure recommendedby the vehicle manufacturer on thevehicle placard or tire inflationpressure label. (If your vehicle hastires of a different size than the sizeindicated on the vehicle placard ortire inflation pressure label, youshould determine the proper tireinflation pressure for those tires.)As an added safety feature, yourvehicle has been equipped with atire pressure monitoring system(TPMS) that illuminates a low tirepressure telltale when one ormore of your tires is significantlyunder‐inflated.Accordingly, when the low tirepressure telltale illuminates, youshould stop and check your tires assoon as possible, and inflate themto the proper pressure. Driving on asignificantly under‐inflated tirecauses the tire to overheat and canlead to tire failure. Under‐inflationalso reduces fuel efficiency and tiretread life, and may affect thevehicle's handling and stoppingability.