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EnginePart report

2017 Hyundai Sonata Plug-In Hybrid Engine Problems

Complaints
17about this part
Share
53%of 32 total for the year
Median mileage
12,470miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 17 complaints about the engine of the 2017 Hyundai Sonata Plug-In Hybrid, 53% of the 32 complaints for this model year. Where a mileage was given, the median is 12,470 miles.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“This is my first time buying a brand new car in my mid 40's. I purchased the car (plug in hybrid) with only 25 miles on march 15, 2018 and after 7 days and 353 miles later, upon driving and coming to a stop in the city of philadelphia, pa, the car stalled and lost power. Warning message check hybrid system. I had to step on the gas pedal all the way down to the floor and waited a second or two in order for it to move at a turtle's pace. Fortunately, I was able to find a safe spot to park the car. …”

NHTSA complaint #11081789, filed 2018-03, 353 miles

“I was driving my Hyundai 2017 sonata plugin hybrid on the high way in hev mode and suddenly I felt severe vibration in my car. Then I changed my engine to EV mode and it was fine. Engine light came on. Every time the gas engine came on the car started vibrating and non responsive to gas. I drove about 10 more km towards home on electric only engine and then got it towed to the dealership. It felt like engine lost its power. I recently changed the voltage protection device on the car as a recall. All services were done on time and car had only 33000 km.”

NHTSA complaint #11210126, filed 2019-05, 33,250 miles

“14 march 2018 10:30 am, 70 MPH on us 101 to san francisco, hev mode, rainy weather, 4 passengers for a business meeting. Car steering shuddered as if the tires slipped and spun on the wet pavement. Esc, brake, and auto hold lights turned yellow. Was able to drive the car normally to reach destination, parked, attended meeting, and started driving back home with my passengers at 3pm. Esc, brake, and auto hold lights were still on. Hev mode. 30 minutes later, I-280 at 65+ MPH, engine power drastically reduced abruptly, car started to slow down and became unresponsive to the gas. …”

NHTSA complaint #11079939, filed 2018-03, 12,470 miles

“First extended drive of new car, check engine light came on. Took it to dealer for service, was told I had bad fuel that they tested a sample and found e85 (ethanol) in it, which is not covered by Hyundai new car warranty for plug-in hybrid electric vehicles. I paid $828 to have fuel drained and replaced, fuel injection cleaning, and decarbonizing and throttle body cleaning. Check engine light went away, but turned back on a few days later. Again took it to dealer but they were unable to get it to turn on after I left it, so returned the car to me, no charge. …”

NHTSA complaint #10938754, filed 2016-12, 1,858 miles

“On 3/15/2017 around 8am, I started my car to leave for work and the car showed a warning check hybrid system and the corresponding warning light came on. The gasoline engine also started right away and stayed on, even though the EV battery was full. The engine remained on throughout my commute to work and back to home in the evening. I plugged the car in my garage for charging overnight with the timer set to start the charging at 10pm. Around 10:45pm, my wife and I opened the internal garage door from inside the house and immediately smelled exhaust fumes and heard the engine running. …”

NHTSA complaint #10966358, filed 2017-03, 2,900 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2019120%
20171753%
20161869%

Other parts of the 2017 Hyundai Sonata Plug-In Hybrid

Electrical system
11 complaints
Other or unknown
7 complaints
Fuel system
6 complaints
Transmission and drivetrain
4 complaints
Vehicle speed control
2 complaints
Brakes
1 complaints
Electronic stability control
1 complaints
Forward collision avoidance
1 complaints
Steering
1 complaints

← All problems reported for the 2017 Hyundai Sonata Plug-In Hybrid

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology