2021 GMC TERRAIN — Complaint #2144780
Open-data reference.
NHTSA Complaint about CHILD SEAT filed October 31, 2025
NHTSA complaint #2144780 (ODI reference 11696797) concerns a 2021 GMC TERRAIN and was filed on October 31, 2025. The owner reports the failure occurred on May 11, 2023. The report was geocoded to Alabama based on the filer's self-reported location. The affected component is categorized as child seat, one of NHTSA's standardized taxonomy codes used to group defect patterns across make, model, and year.
The filer flagged the following severity indicators: crash: no, fire: no, injuries: 0, fatalities: 0. No crash, fire, or fatality was associated with this report, which places it in the early-warning stream rather than the priority-review stream. Because a VIN was supplied, this complaint is tied to a specific vehicle and not just a model-year cohort.
Individual complaints are consumer-submitted and unverified by NHTSA engineers — the agency's role at this stage is to collect, index, and make them searchable. What matters for federal action is the pattern: when many owners of the same GMC TERRAIN cohort independently describe similar child seat failures, defect investigators have grounds to open a PE and request manufacturer data. Related filings for the same vehicle and component appear below, and the detail page for the full 2021 GMC TERRAIN shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2021 GMC Terrain. The contact received notification of NHTSA Campaign Number: 23V339000 (Child Seat); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted and informed the contact that the vehicle would not be inspected or repaired. The manufacturer was made aware of the issue. The contact had not experienced a failure.
Complaint Details
| NHTSA Complaint ID | 2144780 |
| ODI Number | 11696797 |
| Date Filed | October 31, 2025 |
| Failure Date | May 11, 2023 |
| VIN | 3GKALPEVXML |
Source: NHTSA Vehicle Complaints Database. Component taxonomy and severity codes are standardized by NHTSA Office of Defects Investigation.
Read our methodology — how this data is sourced, computed, and verified.