C1844 on the 2020 Acura RDX
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.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| B20-032 | 2021-09-02. Service bulletin. Service Bulletin - The AWD indicator comes on with DTC C1843-62 (left rear differential fluid pressure deviation) and/or DTC C1844-62 (right rear differential fluid pressure deviation). |
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| B20-032 | 2021-04-05. Service bulletin. Service Bulletin - The AWD indicator comes on with DTC C1843-62 (left rear differential fluid pressure deviation) and/or DTC C1844-62 (right rear differential fluid pressure deviation). |
2 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.