# P31E8 on the 2021 Cadillac CT4

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.

## Bulletins for this model year that name P31E8

- [11011711](https://open.wenmarpro.com/bulletins/11011711), 2024-12-10: This service bulletin provides a repair procedure to correct a customer concern of Malfunction Indicator Lamp \(MIL\) Illuminated, DTC P31E8, P31DB, P31D4 and/or P31E2 Set.
- [10199283](https://open.wenmarpro.com/bulletins/10199283), 2021-07-19: This service bulletin provides a repair procedure to correct a customer concern of Malfunction Indicator Lamp \(MIL\) Illuminated, DTC P31E8, P31DB, P31D4 and/or P31E2 Set.
- [10198892](https://open.wenmarpro.com/bulletins/10198892), 2021-07-06: This service bulletin provides a repair procedure to correct a customer concern of Malfunction Indicator Lamp \(MIL\) Illuminated, DTC P31E8, P31DB, P31D4 and/or P31E2 Set.