Solved
Only what I contributed is listed, not what my employer contributed ($1,083.47 more than my contribution).
No, you do not need to request a corrected W-2.
As you go through the Health Savings Account (HSA) section of your return, watch for the screen titled 'Did your employer tell you about any other contributions?'
Answer 'yes' and some fields will open where you can enter 'Employer and payroll contributions not reported in Box 12 of your W-2'. This is where you will enter the contributions to the HSA that were made by your employer.
This screen should pop up just after the one where you could enter your own personal contributions outside of payroll deductions.
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.