# NHTSA Recall 21V233000 — Completion Reports
> **Vehicle May Not Stay In Lane/FMVSS 136** · Mack Trucks, Inc. · Recalled 2021-04-21
## Latest status
- **Affected units:** 566
- **Remedied:** 344 (60.78%)
- **Unreachable owners:** 0
- **Removed from recall:** 0
- **Latest report:** 2023-04-10 (2023-1)
- **Quarters reported:** 8
## Quarterly progress
| Period | Affected | Remedied | Unreachable | Removed | Completion % | Reported |
|--------|----------|----------|-------------|---------|--------------|----------|
| 2021-2 | 566 | 122 | 0 | 0 | 21.55% | 2021-07-01 |
| 2021-3 | 566 | 180 | 0 | 0 | 31.8% | 2021-10-07 |
| 2021-4 | 566 | 233 | 0 | 0 | 41.17% | 2022-01-04 |
| 2022-1 | 566 | 276 | 0 | 0 | 48.76% | 2022-04-07 |
| 2022-2 | 566 | 296 | 0 | 0 | 52.3% | 2022-06-30 |
| 2022-3 | 566 | 315 | 0 | 0 | 55.65% | 2022-10-05 |
| 2022-4 | 566 | 333 | 0 | 0 | 58.83% | 2023-01-12 |
| 2023-1 | 566 | 344 | 0 | 0 | 60.78% | 2023-04-10 |
## Source
- [NHTSA recall page](https://www.nhtsa.gov/recalls?nhtsaId=21V233000)
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