Just filed taxes but partway through it mentions I owe money due to 401(k), yet Refund amount did not change.

So like the title says, as I was filling out my W-2s and income and such, I also had to enter in the 401k money I had to withdraw early from an old job's account. I took the whole thing, and of course since I'm only in my 30s, I payed taxes/penalties on it. Now supposedly, according to TurboTax, I somehow didn't pay all the taxes needed and have to pay an additional 1500 if I read it correctly, however my refund amount that I am getting back did not go up or down to account for this money I owe. I am getting a decent amount back and can easily pay it if needed, but since the refund amount did not account for that, what happens next? Do I actually owe that amount or is it just stating what I could possibly owe? Don't want to get my full refund only to see months later a notice saying to pay the taxes; normally the filing process will let me know if I owe or not. The money is to be used for bills and other such housing expenses but not not sure if I can use it all.