# NHTSA Defect Petition DP78011
> **121 BRAKING SYSTEM, DOT LIGHT STAYS ON** · Opened 1977-12-02 · Closed 1978-04-03
## Investigation
- **Action number:** DP78011
- **Type:** Defect Petition
- **Open date:** 1977-12-02
- **Close date:** 1978-04-03
- **Manufacturer:** —
- **Affected makes:** —
- **Affected components:** —
- **Affected model years:** —
- **Affected (make, year) variants:** 1
## Summary

121 BRAKING SYSTEM, DOT LIGHT STAYS ON

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=DP78011)
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