# NHTSA Preliminary Evaluation PE86049
> **SEAT TRACK LOCK** · Opened 1986-04-24 · Closed 1986-08-01
## Investigation
- **Action number:** PE86049
- **Type:** Preliminary Evaluation
- **Open date:** 1986-04-24
- **Close date:** 1986-08-01
- **Manufacturer:** General Motors, LLC
- **Affected makes:** CHEVROLET
- **Affected components:** SEATS
- **Affected model years:** 1984
- **Affected (make, year) variants:** 1
## Summary

ANALYSIS:EIGHT (8) OF THE 13 COMPLAINTS ALLEGE THAT THE FAILURE OCCURREDPRIOR TO ANY IMPACT/ACCIDENT INVOLVEMENT.ONE (1) OF THE FAILURES MAY HAVECAUSED OR AT LEAST INFLUENCED THE DRIVERS INVOLVEMENT IN AN ACCIDENT.THEDRIVER'S SUDDEN TEMPORARY LOSS OF VEHICLE CONTROL MAY HAVE RESULTED FROMHIS INABILITY TO APPLY THE BRAKES DUE TO THE SEATS REARWARD MOVEMENT.FOUR (4) OF THE FAILURES ALLEGEDLY OCCURRED DURING AN ACCIDENT/IMPACTSITUATION.BECAUSE THIS FAILURE APPEARS TO OCCUR WITHOUT WARNING AND DUETO THE POSSIBLE MOMENTARY LOSS OF VEHICLE CONTROL BY THE DRIVER IT ISSUGGESTED THAT FURTHER INFORMATION BE REQUESTED FROM GM ON THIS SUBJECT.PROPOSED ACTION:OPEN A PRELIMINARY EVALUATION ON THIS SUBJECT.

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=PE86049)
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