# Service bulletin PIT6396A

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11022075
- Published by NHTSA: 2025\-08\-22
- Manufacturer's number: PIT6396A
- Manufacturer's date: 2025\-08\-05
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11022075-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11022075-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Trouble codes named

C111B, P10DA, P12A6, P2535

## Vehicles listed

- 2020 to 2022 CHEVROLET SILVERADO 1500
- 2020 to 2023 CHEVROLET SILVERADO 2500
- 2020 to 2023 CHEVROLET SILVERADO 3500
- 2020 to 2022 GMC SIERRA 1500
- 2020 to 2023 GMC SIERRA 2500
- 2020 to 2023 GMC SIERRA 3500

JSON: [/v1/bulletins/11022075](/v1/bulletins/11022075)

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