2020 GMC SIERRA 1500 — Complaint #2085301
Open-data reference.
NHTSA Complaint about ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL filed April 23, 2025
NHTSA complaint #2085301 (ODI reference 11656277) concerns a 2020 GMC SIERRA 1500 and was filed on April 23, 2025. The owner reports the failure occurred on April 23, 2025. The vehicle had 125,000 miles on the odometer at the time of the incident. The report was geocoded to New Jersey based on the filer's self-reported location. The affected component is categorized as electrical system: integrated trailer brake control, 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 SIERRA 1500 cohort independently describe similar electrical system: integrated trailer brake control 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 GMC SIERRA 1500 shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2020 GMC Sierra 1500. The contact stated while driving 40 MPH, the vehicle failed to properly respond. There were no warning lights illuminated; however, the message ESC was displayed. The contact stated that the brakes, steering, and a message to check the trailer brakes was also displayed. The contact pulled over to the side of the road and the brake pedal was depressed several times however, the brakes failed to respond, and the vehicle was difficult to control. The vehicle was towed by AAA and then towed to a dealer however, the vehicle was not yet diagnosed. The contact stated that the brakes were inoperable, and the control center was destabilized. The vehicle was not yet repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline. The failure mileage was approximately 125,000.
Complaint Details
| NHTSA Complaint ID | 2085301 |
| ODI Number | 11656277 |
| Date Filed | April 23, 2025 |
| Failure Date | April 23, 2025 |
| VIN | 3GTU9DED3LG |
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.