What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
2Original wording in English
CHEVROLET
Reported code forms P2BAA
This service bulletin provides repair information for an ECM Calibration Update for P2BAA to correct customer concerns of a MIL Illumination.
CHEVROLET, GMC
Reported code forms P2BAA
Hesitation, Stalling, Engine Speed Flare While Coasting, Unintended Acceleration Feel During a Parking Lot Maneuver, Reduced Surge in Low Speed Maneuvers, Stumble, Harsh Tip-In/Tip-Out, Park-Reverse-Drive Shift…
Check vehicle applicability
10A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Chevrolet | SILVERADO 1500 | 2017 |
| Chevrolet | SILVERADO 2500 | 2017 |
| Chevrolet | SILVERADO 3500 | 2017 |
| Chevrolet | SILVERADO 4500 | 2023 |
| Chevrolet | SILVERADO 5500 | 2023 |
| Chevrolet | SILVERADO 6500 | 2023 |
| GMC | SIERRA 1500 | 2017 |
| GMC | SIERRA 2500 | 2017 |
| GMC | SIERRA 3500 | 2017 |
| GMC | SIERRA DENALI | 2017 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.