# NHTSA Preliminary Evaluation PE91101
> **FRONT BRAKE DISC/HUB SEP** · Opened 1991-07-17 · Closed 1991-11-04
## Investigation
- **Action number:** PE91101
- **Type:** Preliminary Evaluation
- **Open date:** 1991-07-17
- **Close date:** 1991-11-04
- **Manufacturer:** General Motors, LLC
- **Affected makes:** PONTIAC
- **Affected components:** SERVICE BRAKES, HYDRAULIC
- **Affected model years:** 1988, 1989, 1990, 1991
- **Affected (make, year) variants:** 4
## 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=PE91101)
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