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Hyundai Sonata Hybrid

2021 only

70 classified complaints

2021 Hyundai Sonata Hybrid have 70 classified complaints on record for that year specifically. The most common issue in this year is Battery, alternator and charging, typically surfacing around 24,000 miles.

Computed directly from stored federal records for 2021 model years only — not blended with the rest of this vehicle's production run. See the full Hyundai Sonata Hybrid report for every year combined.

Where this year fits

2011

2012

2013

2015

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2017

2021

Complaints filed per individual model year — highlighted bars link to their own dedicated page.

What breaks, and when — 2021 only

Battery, alternator and charging · Electrical 23 complaints

Median onset: 24,000 miles.

More common in newer model years. · Typical repair: $250–$1,030 nationally.

Cooling system: radiator, water pump, thermostat, fan · Engine 13 complaints

Median onset: 32,547 miles.

More common in older model years. · Typical repair: $260–$1,910 nationally.

Hybrid or EV traction battery and inverter · Electrical 9 complaints

Onset mileage not consistently reported.

More common in newer model years. · Typical repair: $2,740–$5,240 nationally.

Head gasket and cylinder head · Engine 5 complaints

Onset mileage not consistently reported.

More common in older model years. · Typical repair: $1,620–$3,010 nationally.

Driver-assist cameras, radar and calibration · Electrical 5 complaints

Onset mileage not consistently reported. 60.0% of these reported an injury, a death, or a crash with fire.

More common in newer model years.

Transmission control module and sensors · Transmission 4 complaints

Onset mileage not consistently reported.

More common in older model years.

Body control and other modules · Electrical 3 complaints

Onset mileage not consistently reported.

More common in newer model years.

Doors, windows, latches, seats and trim · Body and interior 2 complaints

Onset mileage not consistently reported.

From owner-filed complaints to NHTSA, not independently verified. Federal mileage reporting on recent complaints is sparse — see how it works. Cost ranges are national estimates from book labor hours and parts pricing, not this vehicle's actual repair history — they don't account for your location or shop type.

Cost estimator: what will this one cost you?

Enter the car's year and mileage. See which known problems are due in your next 3 years, what each costs at your state's labor rates, which ones to ask the seller about, and routine maintenance to budget for.

Sources: NHTSA Office of Defects Investigation — complaints and recalls, scoped to 2021 model year. See the full Hyundai Sonata Hybrid report for every year and full specs/safety data.