C056D on the 2014 Cadillac XTS
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| 19NA182 | 2019-09-23. Service bulletin. This technical bulletin provides repair information to correct a customer concern of "Steering Assist Is Reduced" Message and One of The Following DTCs Are Set: C056D, U0415. |
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| PI1294A | 2018-05-07. Service bulletin. This preliminary informational bulletin provides repair information on correcting a customer concern of intermittent service power steering message displayed on DIC, and DTC C056D, C0475 or U0131 may be set. |
| PI1294A | 2017-08-15. Service bulletin. This preliminary informational bulletin provides repair information on correcting a customer concern of intermittent service power steering message displayed on DIC, and DTC C056D, C0475 or U0131 may be set. |
3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.