# NHTSA Preliminary Evaluation PE98005
> **ERRATIC TURN SIGNAL OPERATION** · Opened 1998-02-06 · Closed 1998-08-27
## Investigation
- **Action number:** PE98005
- **Type:** Preliminary Evaluation
- **Open date:** 1998-02-06
- **Close date:** 1998-08-27
- **Manufacturer:** General Motors, LLC
- **Affected makes:** CADILLAC
- **Affected components:** EXTERIOR LIGHTING
- **Affected model years:** 1994, 1995, 1996, 1997
- **Affected (make, year) variants:** 4
## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=PE98005)
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