The Community has you covered, @Allie6.

Let's run the report for the specific bank account and filter it to show those uncleared transactions. Follow along below to get this done right away:

1. In QuickBooks, go to the Accountant menu and choose Chart of Accounts.
2. Look for the account you need to reconcile and right-click. 
3. Select QuickReport.
4. Once opened, click the Customize Report button and go to the Filters tab.
5. Under the Choose Filter section, look for Cleared. Click the option and tick the No radio button.
6. This will be added under the Current Filter Choices field.
7. When finished, hit OK. 

For more details, please refer to this article: Customize reports in QuickBooks Desktop.

Once done, you may now follow the steps outlined by my colleague, IamjuViel to reconcile your uncleared transactions from previous years.

Also, if in case you need info from your past reconciliation to review or fix a current reconciliation, you may pull up a reconciliation report. For the detailed steps, please see this article: Get reports for previous reconciliations in QuickBooks Desktop. 

Feel free to post here in the Community if you have any concerns about reconciling your accounts in QuickBooks. I want to make sure you're taken care of, and I'm here to help you anytime. Take care always.