Federal complaint record · Hyundai Sonata · model year 2015

2015 Hyundai Sonata

Owners submitted 1,128 federal complaint reports about this model year, placing it at the 83th percentile for complaint intensity within its 2013 to 2017 midsize sedan cohort. The largest reported component group is engine. Sample sizes and limitations are shown below.

Engine · 39% · group n = 633Other · 10% · group n = 168Electrical · 10% · group n = 166Powertrain · 8% · group n = 133Fuel system · 5% · group n = 82
1,128
Complaint records on file
56,000
Median mileage at the reported problem · 596 complaints reported mileage
39%
Of classified component reports name engine · group n = 633
83th
Complaint-intensity percentile in a cohort of 50 model years

Engine · 4 in ten classified complaints

Where this record concentrates

All failure files
Component group 01 · Engine39%

Engine reports

Hyundai Sonata · model year 2015

Reports in this group633
Share of classified reports39%
Component groups on file6
Open the failure files

Adjacent model years · same badge, different data

The complaint signal has a shape

Compare model years
2014
0.3complaints per 1,000 estimated vehicle-years
742 matched incidents
This car
2015
0.5complaints per 1,000 estimated vehicle-years
1,128 matched incidents
2016
0.4complaints per 1,000 estimated vehicle-years
718 matched incidents

The line compares submitted complaints per 1,000 estimated vehicle-years, not failures per 1,000 cars. Vehicle-years use compiled US sales, a 0.25 prior-calendar-year plus 0.75 current-calendar-year model-year allocation, and the shipped survival curve. Rates appear only where estimated vehicles in operation are at least 5,000.

From the record · recurring narrative clusters

What recurring complaint clusters describe

How clusters are built
Stalling or shutdown · 179 reports

Reports describe the vehicle stalling or shutting off while driving

Cluster 1 of 32015 Hyundai Sonata
Fire or smoke · 123 reports

Reports describe smoke, burning smells, or fire

Cluster 2 of 32015 Hyundai Sonata
Engine damage · 97 reports

Reports describe engine damage or oil consumption

Cluster 3 of 32015 Hyundai Sonata

Cluster summaries paraphrase recurring symptoms reported to NHTSA. They are aggregate descriptions, not individual verbatim reports.

Records through 2026-07-19Published 2026-08-02 · Updated 2026-07-19

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NHTSA consumer complaint records can reveal recurring patterns across published model years. MotorCensus summarizes those records as one complaint-signal index, with a 95% interval and sample size, updated with each data snapshot.

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