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U2100 on the 2018 Volvo XC90

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.

Bulletins for this model year that name U2100
TJ35340.1.0-20192020-01-13. Service bulletin. This is a Technical Journal: "Ghost" DTCs set: SODL-U210052 and SODR-U210052

1 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.