disappointed...this happened to me and putting 0 in the 2017 owed worked (DoninGA comment above). This seems like a legitimate answer since my 2017 return did not include form 2210. After reading on the IRS website, it seems all of this is moot anyway since the IRS instructions for form 2210 implies that the government will calculate the penalty if the form is not included. I am content to have the form removed and rely on the IRS to calculate the penalty (which should be none) over TurboTax. I never thought I would type that sentence. Hopefully my comment is helpful to someone else as that is the only way I can feel like the universe got something out of the three hours I wasted fixing this problem and then reading the IRS form. TurboTax has too many competitors and charges too much to do this poor of a job fixing (or not fixing) this issue.
