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.
U0028 — vehicles with official records naming this code
U0028 is named in NHTSA-published manufacturer communications or investigations for 41 vehicle families, including:
- Chevrolet Suburban model years 2013-2020, 2026 · 51 records
- Chevrolet Tahoe model years 2013-2020, 2026 · 51 records
- GMC Yukon model years 2013-2020, 2026 · 49 records
- Cadillac Escalade model years 2013-2020, 2026 · 37 records
- Buick Regal model years 2013-2018 · 22 records
- Buick LaCrosse model years 2013-2018 · 21 records
- Cadillac ATS model years 2013-2018 · 20 records
- Cadillac XTS model years 2013-2018 · 19 records
- Cadillac SRX model years 2013-2016 · 17 records
- Cadillac CTS model years 2013-2018 · 17 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 |
|---|---|---|---|---|---|
| U0028 | Vehicle Communication Bus A | Network / communication | Generic | Not manufacturer-specific | Not classified |
No matching codes
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