You need to wait until you receive your copy of the corrected (most updated) W-2 to file. Once you have it the IRS will also have it. Employers
are required to correct errors on Forms W-2 as quickly as possible. The penalty
for filing an incorrect W-2 with the SSA increases over time. To avoid
penalties, a Form W-2c is generally required within 30 days of becoming aware
of an error.
If you've already filed your return with the original W-2 you'll need to amend. The 1040X amendment forms are not yet finalized in TurboTax Online. Amendment instructions
can be found here when they become available for 2017 (early february): https://ttlc.intuit.com/replies/3288565
