2015 Hyundai Sonata · symptom sheet
Engine stalls or loses power while driving
- 250owner reports
- 65,000median miles
- $500median quote
- 1involved a crash
Newest report Aug 10, 2026 · checked Oct 2, 2026
819 of the 1,144 complaints on this car are about the engine. 250 of those describe stalling, which makes it the most reported problem on the 2015 Sonata.
Tick what matches of 250 reports
Stalling on other Sonata 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: 2019, 2020, 2021, 2022, 2023, 2024.
What this problem usually is
Stalling reports are some of the most alarming on the site. The engine quits while the car is moving, sometimes on a highway and sometimes at a stop. Many owners say it restarted right away and the dealer found no stored code, which is part of why these complaints pile up before anything gets fixed.
What got replaced
Owners who name the part that was replaced mention the engine (21 reports), the battery (18 reports), the fuel pump (10 reports) and the ignition coil or plugs (8 reports).
Recalls and investigations
2 recalls on the engine cover the 2015 model year. A recall on the same system isn't always the same failure, so read the defect text.
The affected vehicles are equipped with an Antilock Braking System (ABS) warning light intended to warn the driver if there is an ABS malfunction.
The affected vehicles may have been assembled with an incorrect left axle shaft which may result in the shaft separating from the transaxle differential.
All 9 recalls on the 2015 Hyundai Sonata, with the owner complaints on each recalled system
NHTSA investigations into the engine on the Sonata
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.
Scope and timeliness. Closed dec 22, 2021, led to recall 17V-226.
Charging system failures. Closed oct 31, 1994.
What owners paid
36 of the 250 reports quote a price. Each dot is one quote. The middle half runs $205 to $2,076.
When it happens
The middle half of failures fell between 29,000 and 97,000 miles, from the 153 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 1 service bulletin or notice for the 2015 Hyundai Sonata 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.
If you are servicing a vehicle with a transmission slipping concern, follow the Service Procedure shown below and perform a stall test. This TSB provides a procedure to test each clutch in the transmission.
What owners wrote
“I started taking my car to the dealer in 2023 for engine problems, including high oil consumption and stalling. The dealer kept telling me to return in 1,000 miles instead of fixing it. The issue was officially documented again in March 2024 (RO #131797) with âCause: high oil consumption.â Despite paying \$356.46 for repairs, the problem was never resolved and now the engine has failed”
Filed Sep 22, 2025 · 1,000 miles
“My engine is seized. Driving down the road normal all the sudden driving 14mph peddle all the way down to the floor. Mph slowly decreasing until it get to a complete stop and dies. The car turns on but does not crank. Check engine light is now on battery light, oil light and key fob light without warning. Did not have knocking ,shaking or stalling of the vehicle. Vehicle was diagnosed and towed twice.”
Filed Mar 29, 2022
“At low idle (stopping) car stalls out when stepping on gas. The RPMs run extremely high and very low at idle causing panic. The vehicle also stalled at full speed on highway but all electrical was still working. Car tends to sputter and jump while shifting.”
Filed Mar 23, 2022
“The engine rattles and knocks and has stalled out multiple times, crossing traffic and stopping. The airbag light is illuminated on dash. When Iâm driving the steering sticks in corners badly Iâve taken to Hyundai and they supposedly did an update to keep it from doing it but itâs still grabbing and sticking very dangerous.”
Filed Feb 17, 2022
Should you keep driving it?
This page can't tell you that. 1 of 250 reports involved a crash and 4 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 Paid for this repair before a recall covered it? How recall reimbursement works
Other problems on this car
- Engine failure, knocking or rod bearing 226 reports
- Check engine light or misfire 171 reports
- Burns oil or oil level rises 83 reports
- Brakes grind, pulse or wear early 76 reports
- Engine rattles or ticks 48 reports
- Vehicle fire 44 reports
- Transmission shudders, slips or shifts hard 41 reports
- Power steering cuts out or goes heavy 36 reports
- Seat belt or seat problems 35 reports
- Hybrid or EV system warning, loss of power 32 reports
- Fuel pump failure 30 reports
- Multiple warning lights come on at once 29 reports
- Engine leaks oil 29 reports
- Airbag warning light or recall 25 reports