2015 Hyundai Sonata Hybrid · symptom sheet
Hybrid or EV system warning, loss of power
- 28owner reports
- 74,680median miles
- 2involved a crash
Newest report Sep 15, 2026 · checked Oct 2, 2026
41 of the 53 complaints on this car are about the electrical system. 28 of those describe hybrid system, which makes it the most reported problem on the 2015 Sonata Hybrid.
Tick what matches of 28 reports
Hybrid system on other Sonata Hybrid years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2021.
What this problem usually is
These reports come from hybrid, plug-in and electric vehicle owners whose car put up a system warning and lost power, sometimes dropping into a reduced-power mode on the road. Others describe a car that won't charge, a high-voltage battery or inverter replacement, or a problem that turned out to be the ordinary 12-volt battery all along.
What got replaced
Owners who name the part that was replaced mention the charger or port (4 reports) and the traction battery (3 reports).
Recalls and investigations
No recall on the electrical system covers the 2015 model year as of Oct 2, 2026.
NHTSA investigations into the electrical system on the Sonata Hybrid
Pedestrian alert sounds. Closed aug 7, 2023, led to recall 22V-063.
Loss of motive power. Closed dec 12, 2023.
Engine fires. Closed feb 5, 2024, led to recall 23V-877.
Non-crash vehicle fires. Closed dec 22, 2021, led to recall 20V-061.
Non-crash vehicle fires. Closed may 10, 2019, led to recall 18V-907.
When it happens
The middle half of failures fell between 37,000 and 98,000 miles, from the 23 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 10 service bulletins or notices for the 2015 Hyundai Sonata Hybrid that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Certain 2013-2015MY Sonata Hybrid (YF HEV) vehicles may exhibit warning lights on while driving and the inability to restart the ignition after it has been turned off when stopped.
Certain Sonata Hybrid (YF HEV) vehicles may exhibit warning lights on while driving and the inability to restart the ignition after it has been turned off when stopped.
On certain Sonata hybrid (YF HEV) vehicles, the HEV safety plug or power relay assembly (PRA) may cause the following symptoms and one or more current related DTCs. Follow the Service Procedure before diagnosing the hybrid battery.
The warranty coverage for certain 2015-2017MY Sonata (LFa) and Sonata Hybrid/Plug-in (LF HEV/PHEV) vehicles exhibiting reduced power steering assist and/or motor driven power steering (MDPS) warning lamp has been extended to 15 years or 150,000 miles from the ...
6 more on the 2015 Hyundai Sonata Hybrid page.
What owners wrote
“The Hybrid system kept crashing ! Triggering the auto theft and would not connect to fob , told it was immobilzer, and/or shortage in EV battery!!!”
Filed Aug 4, 2026
Should you keep driving it?
This page can't tell you that. 2 of 28 reports involved a crash and 3 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Hybrid warning on the dash? Hybrid and EV battery complaints explained