2020 BUICK ENCORE GX — Complaint #2091506
Open-data reference.
NHTSA Complaint about SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER filed May 13, 2025
NHTSA complaint #2091506 (ODI reference 11660619) concerns a 2020 BUICK ENCORE GX and was filed on May 13, 2025. The owner reports the failure occurred on December 30, 2024. The vehicle had 101,000 miles on the odometer at the time of the incident. The report was geocoded to Missouri based on the filer's self-reported location. The affected component is categorized as service brakes, hydraulic:foundation components:disc:caliper, 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 BUICK ENCORE GX cohort independently describe similar service brakes, hydraulic:foundation components:disc:caliper 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 2020 BUICK ENCORE GX shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2020 Buick Encore GX. The contact stated that while shifted into reverse on several occasions, the brake was depressed and there was an abnormal foghorn sound coming from the driverâs side rear wheel. The vehicle was taken to a dealer however, the failure was not duplicated. The vehicle was taken to the residence where the rear driverâs side wheel was removed. The caliper was removed, and the contact became aware that piston inside the caliper had fractured in half. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 101,000.
Complaint Details
| NHTSA Complaint ID | 2091506 |
| ODI Number | 11660619 |
| Date Filed | May 13, 2025 |
| Failure Date | December 30, 2024 |
| VIN | KL4MMDSL5LB |
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.