2011 Chevrolet Avalanche Owner's Manual - Page 62

2-26 Keys, Doors and Windows To automatically vent or close the sunroof, press the vent open or close switch (B). When the sunroof is opened, an air deflector will automatically raise. The air deflector will retract when the sunroof is closed. The sunroof also has a sunshade which can be pulled forward to block sun rays. The sunshade must be opened and closed manually. If an object is in the path of the sunroof while it is closing, the anti-pinch feature will detect the object and stop the sunroof. Dirt and debris may collect on the sunroof seal or in the track. This could cause an issue with sunroof operation, noise, or plugging the water drainage system. Periodically open the sunroof and remove any obstacles or loose debris. Wipe the sunroof seal and roof sealing area using a clean cloth, mild soap, and water. Do not remove grease from the sunroof.