TurboTax does not have access to your W-2. You can ask your employer to issue you a replacement W-2.
You "may" be able to import this tax document, IF your employer or payroll provider partners with TurboTax for this feature. See the info below regarding importing your W-2.
https://ttlc.intuit.com/replies/3389204
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***