# NHTSA Engineering Analysis EA88018
> **BRAKE SYSTEM** · Opened 1988-01-20 · Closed 1991-05-31
## Investigation
- **Action number:** EA88018
- **Type:** Engineering Analysis
- **Open date:** 1988-01-20
- **Close date:** 1991-05-31
- **Manufacturer:** General Motors, LLC
- **Affected makes:** CHEVROLET; GMC
- **Affected components:** SERVICE BRAKES, HYDRAULIC
- **Affected model years:** 1984, 1985, 1986, 1987, 1988
- **Affected (make, year) variants:** 20
## Summary

There is no summary currently available

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=EA88018)
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