# NHTSA Engineering Analysis EA96009
> **DYSFUNCTIONAL TURN SIGNAL ASSEMBLY** · Opened 1996-06-17 · Closed 1999-11-23
## Investigation
- **Action number:** EA96009
- **Type:** Engineering Analysis
- **Open date:** 1996-06-17
- **Close date:** 1999-11-23
- **Manufacturer:** Volvo Trucks North America
- **Affected makes:** VOLVO
- **Affected components:** EXTERIOR LIGHTING
- **Affected model years:** 1990, 1991, 1992, 1993, 1994, 1995, 1996
- **Affected (make, year) variants:** 7
## Summary

freightliner issued the subject service bulletin outlining the repair/replacement procedures concerning turn signal switch malfunctions.The turn signal switches are produced by Grote Industries and are sold to multiple heavy truck OEM's/aftermarket sale

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=EA96009)
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