# P12A6 on the 2021 Chevrolet Silverado

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 P12A6

- [11022075](https://open.wenmarpro.com/bulletins/11022075), 2025-08-22: This PI communicates an issue with a SES MIL with DTC P2535, P12A6, P10DA and/or C111B maybe set after replacing the fuel pump driver module. Engineering is working on a fix, but in the meantime, dealers are to install a diode.
- [11019825](https://open.wenmarpro.com/bulletins/11019825), 2025-06-29: This PI communicates an issue with a SES MIL with DTC P2535, P12A6, P10DA and/or C111B maybe set after replacing the fuel pump driver module. Engineering is working on a fix, but in the meantime, dealers are to install a diode.
- [10213034](https://open.wenmarpro.com/bulletins/10213034), 2022-06-02: This service bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.
- [10199253](https://open.wenmarpro.com/bulletins/10199253), 2021-07-19: This service bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.
- [10198862](https://open.wenmarpro.com/bulletins/10198862), 2021-07-06: This service bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.
- [10194090](https://open.wenmarpro.com/bulletins/10194090), 2021-05-24: This service bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.