# NHTSA Defect Petition DP90017
> **INADEQUATE EXHAUST HEAT SHIELD** · Opened 1990-08-24 · Closed 1990-12-21
## Investigation
- **Action number:** DP90017
- **Type:** Defect Petition
- **Open date:** 1990-08-24
- **Close date:** 1990-12-21
- **Manufacturer:** General Motors, LLC
- **Affected makes:** GMC
- **Affected components:** VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
- **Affected model years:** 1988
- **Affected (make, year) variants:** 1
## Summary

INADEQUATE EXHAUST HEAT SHIELD

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=DP90017)
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