# B11CB on the 2021 Ram 4500

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 B11CB

- [10221171](https://open.wenmarpro.com/bulletins/10221171), 2022-09-26: A/C Performance Not As Hot/Cold On Driver Side \- DTC's B11CB\-92, B11CB\-11
- [10194024](https://open.wenmarpro.com/bulletins/10194024), 2021-05-24: A/C Performance Not As Hot/Cold On Driver Side \- DTC's B11CB\-92, B11CB\-11