# NHTSA Preliminary Evaluation PE89104
> **JAMMED STEERING MECHANISM** · Opened 1989-03-17 · Closed 1989-05-12
## Investigation
- **Action number:** PE89104
- **Type:** Preliminary Evaluation
- **Open date:** 1989-03-17
- **Close date:** 1989-05-12
- **Manufacturer:** General Motors, LLC
- **Affected makes:** BUICK; CHEVROLET; OLDSMOBILE; PONTIAC
- **Affected components:** STEERING
- **Affected model years:** 1985, 1986
- **Affected (make, year) variants:** 10
## Summary

SUMMARY: THE OIL FILL TUBE MAY BECOME LOOSE, CAUSING IT TO FALL ANDPOSSIBLY BECOME LODGED NEAR THE STEERING GEAR.THIS MAY CAUSE THESTEERING MECHANISM TO BECOME JAMMED, RESULTING IN A LOSS OF VEHICLECONTROL.===

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=PE89104)
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