No longer eligible for Clean Vehicle Tax Credit, what do I do now?

Long story short:

Due to an employment gap last year, I thought my MAGI was below the threshold for the used clean vehicle credit.
Unfortunately, I did a Traditional IRA to Roth IRA conversion in 2024, which if I understand correctly, makes my AGI/MAGI higher for that FY, pushing me out of qualifying for the credit. (Is this correct? the traditional IRA came from my old employer's 401K match; all my own contributions were Roth 401K).
I got the credit at the dealership and it applied to the purchase price of my vehicle.
I purchased the vehicle in 2025 (this year). I'm pretty certain my AGI/MAGI this year won't be low enough to qualify. I'll be tens of thousands higher than the threshold.
I'm now wondering what to do. I'm using TurboTax Desktop, and want to get this reconciled. How would I pay the IRS back? What forms would I need to fill out?