# NHTSA Preliminary Evaluation PE94063
> **CORRODED REAR DISK BRAKES** · Opened 1994-08-12 · Closed 1994-12-21
## Investigation
- **Action number:** PE94063
- **Type:** Preliminary Evaluation
- **Open date:** 1994-08-12
- **Close date:** 1994-12-21
- **Manufacturer:** General Motors, LLC
- **Affected makes:** BUICK; CHEVROLET; OLDSMOBILE; PONTIAC
- **Affected components:** SERVICE BRAKES, HYDRAULIC
- **Affected model years:** 1988, 1989, 1990, 1991, 1992, 1993
- **Affected (make, year) variants:** 24
## 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=PE94063)
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