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Transmission and drivetrainPart report

2019 Hyundai Sonata Plug-In Hybrid Transmission and drivetrain Problems

Complaints
2about this part
Share
40%of 5 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the transmission and drivetrain of the 2019 Hyundai Sonata Plug-In Hybrid, 40% of the 5 complaints for this model year.

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 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

“I was traveling on a highway when a hybrid system warning suddenly appeared on the dashboard. Every dashboard warning light illuminated. The car began to lose power. I exited the highway immediately and the car began to have sporadic power and was lurching. I immediately pulled onto the shoulder and at that time another warning on the dash appeared within a minute or two of the first warning that said shut engine off. The computer screen began to flash on and of and the windows would not roll up smoothly. When the tow truck arrived the car wouldn't start and it didn't recognize the key fob. …”

NHTSA complaint #11492604, filed 2022-11

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2019240%
2017413%
2016312%

Other parts of the 2019 Hyundai Sonata Plug-In Hybrid

Fuel system
3 complaints
Electrical system
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