U0155 on the 2021 GMC Acadia
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.
| 21-NA-054 | 2024-05-15. Service bulletin. This service bulletin provides repair information to correct various functional concerns of the Instrument Cluster and DTC U0155. |
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| 21-NA-054 | 2024-03-29. Service bulletin. This service bulletin provides repair information to correct various functional concerns of the Instrument Cluster and DTC U0155. |
| 21-NA-054 | 2023-02-23. Service bulletin. This service bulletin provides repair information to correct various functional concerns of the Instrument Cluster and DTC U0155. |
| 21-NA-054 | 2022-11-03. Service bulletin. This service bulletin provides repair information to correct various functional concerns of the Instrument Cluster and DTC U0155. |
4 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.