# P0299 on the 2023 GMC Sierra

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.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0299

- [11004996](https://open.wenmarpro.com/bulletins/11004996), 2024-07-22: This technical bulletin provides repair information to correct a customer concern of Charge Air Cooler \(CAC\) Icing, Check Engine Lamp Illuminated, Possible P0299, P2227, and/or P0300 DTCs Set.
- [10235624](https://open.wenmarpro.com/bulletins/10235624), 2023-05-04: This technical bulletin provides repair information to correct a customer concern of Engine RPO L3B P0299 Service Calibration.
- [10234218](https://open.wenmarpro.com/bulletins/10234218), 2023-04-17: This Preliminary information communicates to the dealers information related Malfunction Indicator Lamp \(MIL\) illuminated in the Driver Information Center \(DIC\). Technicians may find DTC P0299 may be stored Current or in recent history. Technicians are advised of updated Engine Control Module Calibrations becoming available.
- [10231514](https://open.wenmarpro.com/bulletins/10231514), 2023-02-08: This technical bulletin provides repair information to correct a customer concern of Charge Air Cooler \(CAC\) Icing, Check Engine Lamp Illuminated, Possible P0299, P2227, and/or P0300 DTCs Set.