D oes TurboTax get information for my 401K (Merrill Lynch) automatically when I transfer information?

Can you clarify your question?  What do you mean by "transfer information" and are you referring to distributions from your 401(k) reported on a 1099-R.

I'm sorry. I meant Is the information about my 401K distributions in my W-2 form? 

This is a confusing question because a W2 normally will report 401K contributions but not distributions. 401K distributions are reported on a 1099R.  Usually when you request an import from a brokerage, they will report dividends, interest, capital gains,and any distributions from retirement plans typically on a 1099R. They do not transfer anything other than taxable income from dividends, interest, capital gains,and retirement plan distributions.