# NHTSA Preliminary Evaluation PE88027
> **HEADLAMP SWITCH FAILURE** · Opened 1988-02-09 · Closed 1988-05-11
## Investigation
- **Action number:** PE88027
- **Type:** Preliminary Evaluation
- **Open date:** 1988-02-09
- **Close date:** 1988-05-11
- **Manufacturer:** General Motors, LLC
- **Affected makes:** BUICK; CADILLAC; CHEVROLET; OLDSMOBILE; PONTIAC
- **Affected components:** EXTERIOR LIGHTING
- **Affected model years:** 1984, 1985
- **Affected (make, year) variants:** 34
## Summary

===

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=PE88027)
---
*AI Analytics · CC0 1.0*