2021 CHEVROLET SILVERADO 1500 — Complaint #1765016
Open-data reference.
NHTSA Complaint about POWER TRAIN:MANUAL TRANSMISSION:SEALS/GASKETS filed August 25, 2021
NHTSA complaint #1765016 (ODI reference 11430504) concerns a 2021 CHEVROLET SILVERADO 1500 and was filed on August 25, 2021. The owner reports the failure occurred on July 30, 2021. The vehicle had 15,000 miles on the odometer at the time of the incident. The report was geocoded to Florida based on the filer's self-reported location. The affected component is categorized as power train:manual transmission:seals/gaskets, 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 power train:manual transmission:seals/gaskets 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 while driving 65 MPH, the vehicle inadvertently stalled. Several unknown warning lights including the check engine warning light and the transmission warning light were illuminated. The contact stated that he was able to veer to the side of the road and turn off the vehicle. The contact stated that he restarted the vehicle, but the vehicle was shuddering and making abnormal sounds while driving. The vehicle was taken to the nearby dealer who diagnosed that it was a manufacturerâs error and that the engine and the gasket needed to be rebuilt. The manufacturer was notified of the failure and advised the contact that they would replace the engine instead of buying back the vehicle. A case was opened. The vehicle was not repaired. The approximate failure mileage was 15,000.
Complaint Details
| NHTSA Complaint ID | 1765016 |
| ODI Number | 11430504 |
| Date Filed | August 25, 2021 |
| Failure Date | July 30, 2021 |
| VIN | 1GCPWCED7MZ |
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.