L'sLincoln

Just bought a 2013 Certified MKZ and have a quick question about the ambient lighting.  The dealer asked me the color when we went over the cars features.  I had ambient lighting in my Fusion but the MKZ's ambient lighting stays on all the time at night.  The fusion would turn on only when opening and closing the doors.  Is the ambient lighting always on or is there a setting to make it turn off after a minute or two? 

I just purchased a certified 2013 and found that both sides of the trunk lid in the corners have very slight paint chipping and the one side the rubber is looking worn.  Any suggestions or success stories on getting this repaired?