Provincial tuition carryforward amounts didn't import from Auto-Fill My Return in prior years but they should have imported this year.
Here's how to enter them yourself:
1. Sign in to your TurboTax account for tax year 2017 and select Continue to open your return.
2. In the upper-right corner of your screen, select Find.
3. In the Find window, type Tuition fees carryforward and select Go.