The amount that should be in box 10 is not showing in the box, but it is still being used correctly in the calculations.
It’s not uncommon for the CRA to change your contribution room amount, which is why TurboTax has a spot where you can enter the correct amount. Click on “Forms” in the blue icon bar, then search for RRSP. Choose the RRSP - Registered Retirement Savings Plan option. At the bottom of the pop-up you can enter your correct deduction limit, or answer yes to the question asking if it is zero.
