I have ths same problem...
When my GF uses her key(Comfort Access) to unlock/open the door...her seat automatically starts to adjust for her memory setting...

When I use mine(programmed the same way), I always have to hold down the button...

The only thng I can think of, is that she only set the memory for the 1 position....whereas, I think I might have accidentally setupboth 1 and 2...and because of this, it doesn't know which one to use, so it doesn't automatically adjust upon entrance like hers does.