WenmarOpen by Wenmar Pro

P1070 on the 2018 Cadillac CTS

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 P1070
PIE0497C2019-07-29. Service bulletin. This engineering information PI ends the need for further information from the field to determine a root cause on a MIL ON, DTC P1070 condition. If a vehicle is encountered with this condition, refer to SI for further diagnosis.
PIE0497A2019-03-25. Service bulletin. This engineering information PI is requesting information from the field on a MIL ON, DTC P1070 condition.
PIE04972019-03-25. Service bulletin. This engineering information PI is requesting information from the field on a MIL ON, DTC P1070 condition.
PIE0497B2019-03-18. Service bulletin. This engineering information PI is requesting information from the field to determine a root cause on a MIL ON, DTC P1070 condition.

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.