# NHTSA Recall 22V855000 — Completion Reports
> **Parking Brake Can Unintentionally Engage** · Proterra Operating Company, Inc. · Recalled 2022-12-21
## Latest status
- **Affected units:** 446
- **Remedied:** 338 (87.56%)
- **Unreachable owners:** 0
- **Removed from recall:** 0
- **Latest report:** 2025-01-07 (2024-4)
- **Quarters reported:** 9
## Quarterly progress
| Period | Affected | Remedied | Unreachable | Removed | Completion % | Reported |
|--------|----------|----------|-------------|---------|--------------|----------|
| 2022-4 | 446 | 8 | 0 | 0 | 1.79% | 2023-01-30 |
| 2023-1 | 446 | 198 | 0 | 0 | 44.39% | 2023-05-01 |
| 2023-2 | 446 | 198 | 0 | 0 | 44.39% | 2023-07-30 |
| 2023-3 | 446 | 321 | 0 | 0 | 71.97% | 2023-10-30 |
| 2023-4 | 446 | 337 | 0 | 0 | 75.56% | 2024-02-23 |
| 2024-1 | 446 | 338 | 0 | 0 | 75.78% | 2024-05-06 |
| 2024-2 | 446 | 338 | 0 | 0 | 75.78% | 2024-07-01 |
| 2024-3 | 446 | 338 | 0 | 0 | 75.78% | 2024-10-16 |
| 2024-4 | 386 | 338 | 0 | 0 | 87.56% | 2025-01-07 |
## Source
- [NHTSA recall page](https://www.nhtsa.gov/recalls?nhtsaId=22V855000)
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