I had a number of RSU's vest in 2016 and have not received a 1099 from my broker. 1/3 of the RSU's were withheld to settle taxes. How do I report this RSU income?

I had a number of RSU's vest in 2016.  I have not received a 1099 for these from my broker.  My broker informs me that about 1/3 of the RSU's were withheld to settle taxes, and I can see that on my broker statement.  How do I report this RSU income in TurboTax without getting double taxed?

Step by step information would be most appreciated.