2015 HYUNDAI SONATA — Complaint #1976793
Open-data reference.
NHTSA Complaint about ENGINE AND ENGINE COOLING:COOLING SYSTEM filed March 20, 2024
NHTSA complaint #1976793 (ODI reference 11578420) concerns a 2015 HYUNDAI SONATA and was filed on March 20, 2024. The owner reports the failure occurred on March 19, 2024. The vehicle had 95,000 miles on the odometer at the time of the incident. The report was geocoded to North Carolina based on the filer's self-reported location. The affected component is categorized as engine and engine cooling:cooling system, 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 HYUNDAI SONATA cohort independently describe similar engine and engine cooling:cooling system 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 HYUNDAI SONATA shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2015 Hyundai Sonata. The contact stated when starting the vehicle, the vehicle experienced a hard start and shuddered. No warning light was illuminated. The vehicle was taken to an unknown dealer, where washer fluid was poured into the vehicle. The vehicle was then taken to an independent mechanic, who informed the contact that the oil was 2 quarts low, and the mileage was below the next recommended oil change. The contact stated that the failure recurred. The vehicle was taken to an unknown second dealer, where the contact was informed that no signs of oil leak and smoke were found during the inspection. The dealer determined that oil could be leaking in the engine. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 95,000.
Complaint Details
| NHTSA Complaint ID | 1976793 |
| ODI Number | 11578420 |
| Date Filed | March 20, 2024 |
| Failure Date | March 19, 2024 |
| VIN | 5NPE24AF5FH |
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.