The result seems to suggest that you entered into box 6 of TurboTax's W-2 form(s) a different amount than is shown in box 6 of the Form(s) W-2 provided by your employer(s). Perhaps you omitted a decimal point.
The only other possibility would seem to be if you paper-filed your tax return and the IRS person transcribing your tax return made a transcription error.
