# NHTSA Engineering Analysis EA91028
> **BRAKE FAILURE** · Opened 1991-06-10 · Closed 1992-06-30
## Investigation
- **Action number:** EA91028
- **Type:** Engineering Analysis
- **Open date:** 1991-06-10
- **Close date:** 1992-06-30
- **Manufacturer:** General Motors, LLC
- **Affected makes:** CHEVROLET; GMC
- **Affected components:** SERVICE BRAKES, HYDRAULIC
- **Affected model years:** 1990, 1991
- **Affected (make, year) variants:** 6
## Summary

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## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=EA91028)
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