# NHTSA Defect Petition DP89006
> **INOPERATIVE PARKING BRAKES** · Opened 1989-03-01 · Closed 1989-03-22
## Investigation
- **Action number:** DP89006
- **Type:** Defect Petition
- **Open date:** 1989-03-01
- **Close date:** 1989-03-22
- **Manufacturer:** General Motors, LLC
- **Affected makes:** PONTIAC
- **Affected components:** PARKING BRAKE
- **Affected model years:** 1984
- **Affected (make, year) variants:** 1
## Summary

INOPERATIVE PARKING BRAKES

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=DP89006)
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