# NHTSA Defect Petition DP93001
> **ANTILOCK BRAKES** · Opened 1993-01-05 · Closed 1993-05-11
## Investigation
- **Action number:** DP93001
- **Type:** Defect Petition
- **Open date:** 1993-01-05
- **Close date:** 1993-05-11
- **Manufacturer:** General Motors, LLC
- **Affected makes:** CHEVROLET; GMC
- **Affected components:** SERVICE BRAKES, HYDRAULIC
- **Affected model years:** 1990, 1991, 1992, 1993
- **Affected (make, year) variants:** 8
## Summary

ANTILOCK BRAKES

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=DP93001)
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