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Engine coolingPart report

2016 Hyundai Sonata Hybrid Engine cooling Problems

Complaints
3about this part
Share
2%of 133 total for the year
Median mileage
120,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the engine cooling of the 2016 Hyundai Sonata Hybrid, 2% of the 133 complaints for this model year. Where a mileage was given, the median is 120,000 miles. 1 a fire, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

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

“The contact owns a 2016 Hyundai Sonata Hybrid. The contact stated while operating the vehicle, the dashboard warning lights had suddenly activated and the vehicle went into LIMP Mode causing the vehicle to decelerate. The vehicle was taken to the local dealer on several occasions and the NOx sensor, intake manifold and EGR were replaced but the failure persisted. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 104,000.”

NHTSA complaint #11579661, filed 2024-03, 104,000 miles

“The contact owns a 2016 Hyundai Sonata. The contact stated that while the daughter was driving approximately 55 mph smoke was suddenly present coming from under the hood before the engine failed and the vehicle stalled. The vehicle was towed to the local dealer who diagnosed that the engine needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was 140,000.”

NHTSA complaint #11437754, filed 2021-10, 140,000 miles

“The contact owns a 2016 Hyundai Sonata Hybrid. The contact stated while driving approximately 55 MPH, the vehicle was shaking. The hybrid battery, PHEV system, and check engine warning lights were illuminated. The vehicle stalled. The vehicle was towed however, the independent mechanic was unable to determine the cause of the failure. The vehicle was then towed to the local dealer, who diagnosed a failure with the engine and catalytic converter. The engine was replaced. The failure reoccurred. The manufacturer was notified of the failure. The approximate failure mileage was 120,000.”

NHTSA complaint #11466083, filed 2022-05, 120,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202135%
201745%
201632%
201524%
201414%
201311%
201243%
201111%

Other parts of the 2016 Hyundai Sonata Hybrid

Engine
73 complaintsElectrical system
36 complaintsOther or unknown
19 complaintsTransmission and drivetrain
14 complaintsBrakes
10 complaintsExterior lighting
7 complaintsFuel system
7 complaintsVehicle speed control
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsForward collision avoidance
3 complaintsHybrid propulsion system
2 complaintsSteering
2 complaints

← All problems reported for the 2016 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