See this TurboTax support FAQ for an IRS letter 12C - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-forms/got-12c-letter-irs-form-8962/L78Qyi5gK_US_en_US?uid=magyrr0q
No Turbotax will not because only you know what the letter is requesting. If you paid for Audit Defense you can use them but even they may not be able to help if its certain document that the IRS is requesting other tan missing tax forms. .