Black plate (9,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-6006999) -2014 - CRC - 9/11/13Climate Controls 8-9. Keep the path under the frontseats clear of objects to helpcirculate the air inside of thevehicle more effectively.. Use of non-GM approved hooddeflectors can adversely affectthe performance of the system.Check with your dealer beforeadding equipment to the outsideof the vehicle.. Do not attach any devices to theair vent slats. This restrictsairflow and may cause damageto the air vents.MaintenancePassenger CompartmentAir FilterThe filter removes dust, pollen, andother airborne irritants from outsideair that is pulled into the vehicle.The filter should be replaced as partof routine scheduled maintenance.See Maintenance Schedule onpage 11-4.See your dealer regardingreplacement of the filter.ServiceThis vehicle may have the newenvironmentally friendly refrigerant,R1234yf. This refrigerant has asignificantly reduced global warmingimpact on the environment,compared to the traditionalautomotive refrigerant, R-134a. Allvehicles have a label underhoodthat identifies the refrigerant used inthe vehicle.The refrigerant system should onlybe serviced by trained and certifiedtechnicians. The air conditioningevaporator should never be repairedor replaced by one from a salvagevehicle. It should only be replacedby a new evaporator to ensureproper and safe operation.During service, all refrigerantsshould be reclaimed with properequipment. Venting refrigerantsdirectly to the atmosphere is harmfulto the environment and may alsocreate unsafe conditions based oninhalation, combustion, frostbite,or other health-based concerns.