Service bulletins for the 2021 Cadillac XT6
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
814 on file from NHTSA, as of 2026-10-19.
About C056D on the 2021 Cadillac XT6: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
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Only bulletins with trouble code: C056D are shown. Show all
| PIT5662G | 2022-12-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary information communicates information to diagnose DTC C056D or C056E. |
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| 22-NA-107 | 2022-08-03. Service bulletin. ELECTRICAL SYSTEM:IGNITION; POWER TRAIN. 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. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION. 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. PARKING BRAKE. This Preliminary information communicates information to diagnose DTC C056D or C056E. |
| PIT5662F | 2021-09-13. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING; PARKING BRAKE. This Preliminary information communicates information to diagnose DTC C056D or C056E. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.