# P0299 on the 2021 Chevrolet Trailblazer

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

- [11013244](https://open.wenmarpro.com/bulletins/11013244), 2025-01-30: This technical bulletin provides repair information to correct a customer concern of Poor Engine Performance in Extremely Cold Weather Conditions, Charge Air Cooler Icing \- Malfunction Indicator Lamp \(MIL\) Illuminated, DTC P0299, P0234, P0236, P00C7 Set.
- [10240189](https://open.wenmarpro.com/bulletins/10240189), 2023-08-02: This technical bulletin provides repair information to correct a customer concern of Poor Engine Performance in Extremely Cold Weather Conditions, Charge Air Cooler Icing \- Malfunction Indicator Lamp \(MIL\) Illuminated, DTC P0299, P0234, P0236, P00C7 Set.
- [10231634](https://open.wenmarpro.com/bulletins/10231634), 2023-02-13: This Preliminary information communicates to the dealers information related to diagnosis of a MIL illuminated with DTC P0299 and/or Cold start rattle noise from the engine compartment.
- [10214222](https://open.wenmarpro.com/bulletins/10214222), 2022-06-21: This technical bulletin provides repair information to correct a customer concern of Poor Engine Performance in Extremely Cold Weather Conditions, Charge Air Cooler Icing \- Malfunction Indicator Lamp \(MIL\) Illuminated, DTC P0299, P0234, P0236, P00C7 Set.
- [10204453](https://open.wenmarpro.com/bulletins/10204453), 2021-12-13: This Preliminary information communicates to the dealers information related to diagnosis of a MIL illuminated with DTC P0299.