C056D on the 2021 Buick Enclave
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.
| PIT5662G | 2022-12-12. Service bulletin. This Preliminary information communicates information to diagnose DTC C056D or C056E. |
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| 22-NA-107 | 2022-08-03. Service bulletin. This service bulletin provides repair information to correct a customer concern of a Service AWD Message in DIC at Ignition On with DTC C056D Set. |
| 22-NA-107 | 2022-06-04. Service bulletin. This service bulletin provides repair information to correct a customer concern of a Service AWD Message in DIC at Ignition On with DTC C056D Set. |
| PIT5662G | 2022-04-18. Service bulletin. This Preliminary information communicates information to diagnose DTC C056D or C056E. |
| PIT5662F | 2021-09-13. Service bulletin. This Preliminary information communicates information to diagnose DTC C056D or C056E. |
5 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.