Only the prior tax year can transfer to the current tax year using TurboTax. The 2017 tax data cannot be transferred to the 2019 tax return.
See this TurboTax support FAQ for transferring last year's tax data to the online tax return - https://ttlc.intuit.com/community/entering-importing/help/how-do-i-transfer-last-year-s-return-into-...
