If I received a corrected W2 from my employer and it only shows values in box 3 and 4, should I edit these boxes in my original W2 entry in Turbo Tax?

[Critter]

YES ... those are the boxes that changed so you will change only  them in the program. 

[rdpops]

Got it thanks for the response. So I should still only have one W2 entry, but the boxes should reflect the corrected values provided in my W-2c?