2020 CHEVROLET SILVERADO 1500 — Complaint #2168867
Open-data reference.
NHTSA Complaint about SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER filed January 22, 2026
NHTSA complaint #2168867 (ODI reference 11712668) concerns a 2020 CHEVROLET SILVERADO 1500 and was filed on January 22, 2026. The owner reports the failure occurred on January 15, 2026. The vehicle had 101,593 miles on the odometer at the time of the incident. The report was geocoded to Mississippi based on the filer's self-reported location. The affected component is categorized as service brakes, hydraulic:foundation components:master cylinder, 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 CHEVROLET SILVERADO 1500 cohort independently describe similar service brakes, hydraulic:foundation components:master cylinder 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 CHEVROLET SILVERADO 1500 shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2020 Chevrolet Silverado 1500. While driving at an undisclosed speed, the brakes failed to engage while the brake pedal was depressed. The message "Service Brake Assist" was displayed on the instrument panel. The contact researched and became aware of an unknown recall; however, the VIN was not under recall. The vehicle was taken to a dealer where it was diagnosed and determined that the brake master cylinder was leaking and needed to be replaced. The vehicle was repaired; however, the message "Service Brake Assist" was displayed on the instrument panel again. The manufacturer was notified of the failure. The failure mileage was approximately 101,593.
Complaint Details
| NHTSA Complaint ID | 2168867 |
| ODI Number | 11712668 |
| Date Filed | January 22, 2026 |
| Failure Date | January 15, 2026 |
| VIN | 3GCUYEED6LG |
Similar SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER Complaints for 2020 CHEVROLET SILVERADO 1500
The contact's son owns a 2020 Chevrolet Silverado 1500. The contact stated that while her son was driving approximately 60 MPH, the vehicle stalled with the "Service Brakes System" message displayed.
The contact owns a 2020 Chevrolet Silverado 1500. The contact stated while driving 55 MPH and coming to a stop, the check engine warning light and traction control warning light illuminated. Additiona
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.