# NHTSA Engineering Analysis EA92022
> **SEAT BACK BOLT BREAKAGE** · Opened 1992-06-24 · Closed 1993-11-19
## Investigation
- **Action number:** EA92022
- **Type:** Engineering Analysis
- **Open date:** 1992-06-24
- **Close date:** 1993-11-19
- **Manufacturer:** General Motors, LLC
- **Affected makes:** CHEVROLET; GMC
- **Affected components:** SEATS
- **Affected model years:** 1985, 1986, 1987, 1988, 1989, 1990, 1991
- **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=EA92022)
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