I've read a lot on this board about the acceleration lag issues. I believe that I am experiencing something, but not sure that it is the issue that was happening with the pre-Feb. 20 build dates. It seems to me that the transmission "pops" a bit to find the initial few gears, just not smooth. I called my dealer and the service department said that anything after February 12 has the latest software in it. Mine was built on March 6. Has anyone with a post Feb. 12 build date experienced this problem? Did you get it reprogrammed, and if so, did it help? Thank you.