# NHTSA Engineering Analysis EA91054
> **HEATER CORE FAILURE** · Opened 1991-12-09 · Closed 1992-06-12
## Investigation
- **Action number:** EA91054
- **Type:** Engineering Analysis
- **Open date:** 1991-12-09
- **Close date:** 1992-06-12
- **Manufacturer:** Volkswagen Group of America, Inc.
- **Affected makes:** VOLKSWAGEN
- **Affected components:** VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
- **Affected model years:** 1985, 1986, 1987, 1988, 1989, 1990
- **Affected (make, year) variants:** 28
## 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=EA91054)
---
*AI Analytics · CC0 1.0*