# NHTSA Defect Petition DP83010
> **LOSS OF POWER BRAKE ASSIST (E80-100)** · Opened 1983-03-29 · Closed 1983-07-29
## Investigation
- **Action number:** DP83010
- **Type:** Defect Petition
- **Open date:** 1983-03-29
- **Close date:** 1983-07-29
- **Manufacturer:** General Motors, LLC
- **Affected makes:** BUICK; CHEVROLET
- **Affected components:** SERVICE BRAKES, HYDRAULIC
- **Affected model years:** 1980
- **Affected (make, year) variants:** 2
## Summary

LOSS OF POWER BRAKE ASSIST (E80-100)

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=DP83010)
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