Cadillac 2010 CTS Sport Sedan Owner's Manual

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7-4 Climate ControlsRecirculation is not available in thedefrost mode and automaticallyturns off 10 minutes after defog isselected. This helps to limit windowfogging in the vehicle.Using recirculation for long periodsof time could cause the air insidethe vehicle to become too dry orstuffy. To prevent this fromhappening, after the air in thevehicle has cooled, select outsideair or press the auto button.F (Outside Air): Press to turnon the outside air. An indicator lightturns on. The outside air mode pullsfresh air from outside the vehicle.Outside air is always selected indefrost mode to prevent fogging.Rear Window DefoggerThe rear window defogger uses awarming grid to remove fog or frostfrom the rear window. It only workswhen the ignition is in ON/RUN.= (Rear Window Defogger):Press to turn the rear windowdefogger on or off.The rear window defogger stays onfor about 15 minutes, before turningoff if the vehicle is moving at aslower speed. At higher speeds, therear window defogger may stay oncontinuously. With each additionalpress, the defogger runs for about10 minutes. The defogger can alsobe turned off by turning off theengine.The heated outside rearview mirrorsturn on when the rear windowdefogger button is on and helps toclear fog or frost from the surface ofthe mirror. See Heated Mirrors onpage 1‑27.Notice: Do not try to clear frostor other material from the insideof the front windshield and rearwindow with a razor blade oranything else that is sharp. Thismay damage the rear windowdefogger grid and affect yourradio's ability to pick up stationsclearly. The repairs wouldn't becovered by your warranty.z /{ (Heated and VentilatedSeats): Press to heat or ventilatethe seat. See Heated and VentilatedFront Seats on page 2‑9.Remote Start Climate ControlOperation: For vehicles withremote vehicle start, the climatecontrol system automatically heatsand cools the vehicle based on thetemperature inside and outside ofthe vehicle. The climate controldisplays will be blank. See RemoteVehicle Start on page 1‑12.In cold weather the windshielddefroster and/or rear windowdefogger automatically turn on.If the vehicle has heated seats, theywill also turn on.When the ignition is turned to ON/RUN, the climate control systemreturns to the settings used beforethe vehicle was last turned off. Theheated seats will turn off,if equipped.