Normally if you live in a province that has the Climate Action Incentive it’s added to your return at the start, and removed (or increased) only if you enter info that causes it to change. You can check the amount that you are receiving by looking at line 45110 on your detailed summary. This FAQ shows you how to get there: https://turbotax.community.intuit.ca/community/tax-return-status/help/how-can-i-see-a-detailed-summary-of-my-return-in-the-online-edition-of-turbotax/00/873513
You can also double check your claim using the instructions from this FAQ: https://turbotax.community.intuit.ca/community/claims-deductions-donations/help/how-do-i-claim-the-climate-action-incentive-in-the-online-edition-of-turbotax/00/873790
Also, if you’re are married or living common-law with someone, only one of you can claim the Climate Action Incentive. So if you are preparing your taxes with a spouse or partner, it may be on their return instead of yours.