2015 CHEVROLET TAHOE — Complaint #2157466
Open-data reference.
NHTSA Complaint about ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR filed December 15, 2025
NHTSA complaint #2157466 (ODI reference 11705149) concerns a 2015 CHEVROLET TAHOE and was filed on December 15, 2025. The owner reports the failure occurred on December 5, 2025. The vehicle had 165,880 miles on the odometer at the time of the incident. The report was geocoded to Louisiana based on the filer's self-reported location. The affected component is categorized as engine and engine cooling:exhaust system:emission control:catalytic convertor, 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 TAHOE cohort independently describe similar engine and engine cooling:exhaust system:emission control:catalytic convertor 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 2015 CHEVROLET TAHOE shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2015 Chevrolet Tahoe. The contact stated that while driving 65 MPH, the vehicle hesitated and the temperature gauge failed to function as needed, with an abnormally loud sound coming from the cooling fans. The check engine warning light illuminated, and a message about the battery was displayed, and a warning light about the battery was illuminated. The vehicle was taken to an independent mechanic, who diagnosed that the thermostat housing had failed and the wiring to the fan had failed. The vehicle was repaired. Several days later, the contact stated that on a separate occasion, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The check engine warning light was illuminated. The vehicle was taken back to the independent mechanic, where it was diagnosed and determined that the catalytic converter had failed. The vehicle was repaired; however, the same day the vehicle was picked up from the independent mechanic, the check engine warn
Complaint Details
| NHTSA Complaint ID | 2157466 |
| ODI Number | 11705149 |
| Date Filed | December 15, 2025 |
| Failure Date | December 5, 2025 |
| VIN | 1GNSCBKC6FR |
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.