OBD-II Code Decoder
Search the licensed P, B, C, and U reference library by code, definition, system, or manufacturer. Reference-only results are not a complete diagnosis.
Review-withheld definitions are excluded; lookup records are not published diagnostic pages.
P0557 — vehicles with official records naming this code
P0557 is named in NHTSA-published manufacturer communications or investigations for 9 vehicle families, including:
- Cadillac XT5 model years 2017-2021 · 17 records
- Chevrolet Traverse model years 2018-2021 · 17 records
- GMC Acadia model years 2017-2021 · 17 records
- Buick Enclave model years 2018-2021 · 15 records
- Buick Envision model years 2016-2020 · 10 records
- Chevrolet Blazer model years 2019-2021 · 9 records
- Chevrolet Equinox model years 2018-2021 · 8 records
- GMC Terrain model years 2018-2021 · 8 records
- Cadillac XT6 model years 2020-2021 · 5 records
A code named in a manufacturer communication means the document refers to it for those vehicles. It is not a diagnosis of any car, and it does not mean the code is common on that vehicle.
Matching definitions: 1 · Unique codes: 1.
| Code | Meaning | System | Scope | Manufacturer | Severity |
|---|---|---|---|---|---|
| P0557 | Brake Booster Pressure Sensor Circuit Low | Powertrain | Generic | Not manufacturer-specific | Not classified |
No matching codes
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