2021 CHEVROLET SILVERADO 1500 — Complaint #2068470
Open-data reference.
NHTSA Complaint about ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM) filed February 24, 2025
NHTSA complaint #2068470 (ODI reference 11644574) concerns a 2021 CHEVROLET SILVERADO 1500 and was filed on February 24, 2025. The owner reports the failure occurred on February 24, 2025. The vehicle had 13,000 miles on the odometer at the time of the incident. The report was geocoded to Tennessee based on the filer's self-reported location. The affected component is categorized as engine and engine cooling:engine:engine control module (ecu/ecm), 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 engine and engine cooling:engine:engine control module (ecu/ecm) 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 CHEVROLET SILVERADO 1500 shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull over to the shoulder of the roadway, where the vehicle failed to restart. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the fuel pump. The vehicle was repaired, but the failure reoccurred. The vehicle was taken to an independent mechanic, who diagnosed a failure with the ECM wiring harness. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 13,000.
Complaint Details
| NHTSA Complaint ID | 2068470 |
| ODI Number | 11644574 |
| Date Filed | February 24, 2025 |
| Failure Date | February 24, 2025 |
| VIN | 3GCUYGET0MG |
Similar ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM) Complaints for 2021 CHEVROLET SILVERADO 1500
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.