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Fuel systemPart report

2019 Hyundai Sonata Plug-In Hybrid Fuel system Problems

Complaints
3about this part
Share
60%of 5 total for the year
Median mileage
24,922miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the fuel system of the 2019 Hyundai Sonata Plug-In Hybrid, 60% of the 5 complaints for this model year. Where a mileage was given, the median is 24,922 miles.

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 message hybrid system failure suddenly displayed and the vehicle lost power and stalled. This occured on hyw (65mph) and nearly caused wreck from behind”

NHTSA complaint #11365546, filed 2020-10, 24,922 miles

“The high voltage battery will no longer charge neither from being plugged in to the charger on the wall nor from the buikt in system onboard the car. There are warning lights saying the inverter coolant is low but the reservoir is at the proper level. I suspect the coolant for the Hybrid charging inverter is bad and crystalizes causing blockages in the inverter coolant system. My car refuses to charge for the last 2 years. After a few seconds (about 7-10) the car shuts off the charging system when plugged in. …”

NHTSA complaint #11752871, filed 2026-07

“While driving the car it suddenly decelerated and multiple warning errors on electronics, driver assist, braking started going off then the error message of Check Hybrid Turn Engine Off came on. I was able to coast into a parking lot as the car could only go around 5 miles an hour. I turned the care off and on and the Check Hybrid Turn Engine Off remained for the 2 hours it took to have a tow truck come to take the car to a dealer. The car has 16,383 miles and prior to this there was no warning or error messages. …”

NHTSA complaint #11543096, filed 2023-09

Fuel system: other model years

YearComplaintsShare of year
2019360%
2017619%
201628%

Other parts of the 2019 Hyundai Sonata Plug-In Hybrid

Electrical system
2 complaints
Transmission and drivetrain
2 complaints
Engine
1 complaints
Other or unknown
1 complaints

← All problems reported for the 2019 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