FaultScore

Hyundai Sonata Plug-In Hybrid problems

Owners have filed 103 complaints about the Hyundai Sonata Plug-In Hybrid with NHTSA across model years 2016 to 2019. More of them are about the engine & cooling than anything else.

Every Hyundai Sonata Plug-In Hybrid year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded
Year Grade Complaints Crashes Fires Median miles Most reported
2019 9 0 0 Fuel & Propulsion
2017 51 0 0 12,470 Engine & Cooling
2016 43 0 0 26,200 Engine & Cooling

What breaks on a Hyundai Sonata Plug-In Hybrid

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Engine & Cooling 36 35.0%

Worst in 2016

Worst in 2016

Fuel & Propulsion 14 13.6%

Worst in 2017

Other & Unspecified 13 12.6%

Worst in 2017

Transmission & Drivetrain 9 8.7%

Worst in 2017

Acceleration & Cruise Control 2 1.9%

Worst in 2017

Steering 1 1.0%

Worst in 2017

Brakes 1 1.0%

Worst in 2017

Driver Assist & Collision Avoidance 1 1.0%

Worst in 2017

Stability & Traction Control 1 1.0%

Worst in 2017

Complaints filed over time

Every complaint about every Hyundai Sonata Plug-In Hybrid, by the month it reached NHTSA.

Jun 2016 peak 5 Jul 2026

Compare the Hyundai Sonata Plug-In Hybrid

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.