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EnginePart report

2011 Hyundai Sonata Hybrid Engine Problems

Complaints
40about this part
Share
42%of 96 total for the year
Median mileage
90,000miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 40 complaints about the engine of the 2011 Hyundai Sonata Hybrid, 42% of the 96 complaints for this model year. Where a mileage was given, the median is 90,000 miles. 3 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.

Example complaints

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

“While driving on the highway I noticed a knocking sound radiating from my engine at speeds of 60 MPH it the noise increased and then the engine appeared to be failing. My gages where the rmp's reflect where not functioning either. Amongst the engine issue my power steering column is also rattling as if it is loose and steering is become difficult. It is frightening to not feel safe in your own vehicle.”

NHTSA complaint #11088909, filed 2018-04, 115,000 miles

“I was driving around 55 MPH down the highway and noticed a strange knocking sound so I turned around to go home when I noticed smoke billowing out. I pulled over popped the hood and flames went up like crazy. I called 911 and vacated immediately”

NHTSA complaint #11373645, filed 2020-11, 129,000 miles

“I was driving o work and sat at a traffic light when smoke started to come through vents and out the side of passenger hood. I got out and it started to smoke even more and then with a few seconds it burst into flames under the hood”

NHTSA complaint #11219486, filed 2019-06, 104,890 miles

“Vehicle was in motion on I-75. Began to make a loud noise. And started to stall. I pulled over tried to go again. Car wouldn't go over 30miles pulled over and called a tow truck. Dealership stated the engine went out.”

NHTSA complaint #11191044, filed 2019-03, 170,140 miles

“While I was driving, the engine stop without any warning. I try to start the engine again but does not started. I take the vehicle to the dealer but they said the engine get lock and I need to replace it.”

NHTSA complaint #11111318, filed 2018-07, 118,447 miles

Related recalls

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2024111%
2023747%
2022211%
20212138%
2020850%
2019360%
2018556%
20174657%
20167355%
20151935%
20141243%
20134037%
20126844%
20114042%

Other parts of the 2011 Hyundai Sonata Hybrid

Steering
18 complaints
Brakes
17 complaints
Electrical system
17 complaints
Transmission and drivetrain
10 complaints
Other or unknown
9 complaints
Air bags
8 complaints
Electronic stability control
6 complaints
Vehicle speed control
5 complaints
Seat belts
3 complaints
Wheels
3 complaints
Fuel system
2 complaints
Suspension
2 complaints

← All problems reported for the 2011 Hyundai Sonata Hybrid

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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