# P003A on the 2006 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 P003A

- [10126346](https://open.wenmarpro.com/bulletins/10126346), 2017-12-22: This informational bulletin provides information to dealership personnel on identifying Duramax Diesel overpower engine breakdown or non\-function due to aftermarket power\-up devices vs. non overpower engine non\-function of pistons, cylinders, valve train components, and DTC P003A or P111D set.
- [10118639](https://open.wenmarpro.com/bulletins/10118639), 2017-10-12: This informational bulletin provides Information on Identifying Duramax Diesel Overpower Engine Breakdown/Non\-Function Due to Aftermarket Power\-Up Devices vs Non Overpower Engine Non\-Function of Pistons, Cylinders, Valvetrain Components, DTC P003A or P111D Set
- [10030207](https://open.wenmarpro.com/bulletins/10030207), 2009-08-19: CHEVROLET/GMC: DIESEL ENGINE TURBO DTC P2563 OR P003A. MAY ENCOUNTER A CONCERN OF SES LIGHT, REDUCED POWER, LOW POWER. \*PE
- [10021106](https://open.wenmarpro.com/bulletins/10021106), 2007-03-05: LBZ, LLY, ENGINE WITH ROUGH IDLE, POOR PERFORMANCE, BLACK/WHITE EXHAUST SMOKE, MIL/SES LIGHT ON AND ONE OR MORE OF THE FOLLOWING DTC'S P003A, P060B, P0230, P0403, P0401, P0606, P2146, P2149, P2152, P2155. \(REPROGRAM ECM AND REPLACE EGR MOTOR OR EGR VALVE. \*KB UPDATED 04\-27\-07. \*KB UPDATED. \*PE