2017 MERCEDES-BENZ GLC300 — Complaint #2172912
Open-data reference.
NHTSA Complaint about SEAT BELTS: REAR/OTHER:BUCKLE ASSEMBLY filed February 3, 2026
NHTSA complaint #2172912 (ODI reference 11715340) concerns a 2017 MERCEDES-BENZ GLC300 and was filed on February 3, 2026. The owner reports the failure occurred on December 15, 2025. The vehicle had 71,000 miles on the odometer at the time of the incident. The report was geocoded to Texas based on the filer's self-reported location. The affected component is categorized as seat belts: rear/other:buckle assembly, 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 MERCEDES-BENZ GLC300 cohort independently describe similar seat belts: rear/other:buckle assembly 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 2017 MERCEDES-BENZ GLC300 shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2017 Mercedes-Benz GLC300. The contact stated that while parked and attempting to release the seat belt, the seat belt remained latched. The contact stated that after the third attempt, the seat belt operated as needed. The failure had occurred in the front driverâs and passengerâs side seat belts. The vehicle was taken to a dealer, where it was determined that the buckle and needed to be replaced. The seat belt buckle was replaced, and the vehicle was repaired. The manufacturer was notified of the failure but offered no assistance because the warranty had expired. The approximate failure mileage was 71,000.
Complaint Details
| NHTSA Complaint ID | 2172912 |
| ODI Number | 11715340 |
| Date Filed | February 3, 2026 |
| Failure Date | December 15, 2025 |
| VIN | WDC0G4KB7HF |
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.