2015 Hyundai Sonata acceleration & cruise control problems

Related recalls

No recalls on file.

What owners say

1. Filed Sep 22, 2025GAElectrical SystemEngineAcceleration & Cruise Control

   The engine light started to come on and go off and when I got the codes ran, it said something along the line of misfire. I had the spark plugs changed and I kept regular maintenance done on oil changes and tune ups. Now my engine is knocking and the vehicle is in limp mode.

   NHTSA complaint #11688793 · source
2. Filed May 12, 2025ILCrashBrakesDriver Assistance & Safety TechAcceleration & Cruise Control

   My 2015 Hyundai Sonata has demonstrated multiple instances of unintended acceleration and braking failure: April 20, 2024 – While idling in a drive-thru line, the vehicle suddenly lurched forward without any attempt to accelerate and crashed into the vehicle in front of me. I was unable to stop it. This resulted in the other car being totaled. I took it to a Hyundai dealership afterward, but they found no definitive cause. April 4, 2025 – My daughter was driving and…

   NHTSA complaint #11660512 · source
3. Filed Sep 19, 2024140,829 miVATowedEngineAcceleration & Cruise Control

   The contact owns a 2015 Hyundai Sonata. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. In addition, the check engine warning light illuminated, and the vehicle lost motive power. The vehicle was towed to the dealer where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was…

   NHTSA complaint #11615501 · source
4. Filed Sep 6, 2024TXEngineAcceleration & Cruise ControlTransmission & Drivetrain

   My transmission literally went out once on me the SECOND DAY after I financed it. Now, less than a year later, it says I need to replace the transmission again. This is ridiculous.

   NHTSA complaint #11613138 · source
5. Filed Jun 18, 2024TXEngineAcceleration & Cruise Control

   Engine just stopped working. car stop running turned off in the middle of traffic in Dallas Tx. I took my car for an oil change the mechanic said he’s had plenty of 2015 sonata engines just give out and some catch a fire as well.It gave no warning and no smoke. This happened last week.

   NHTSA complaint #11595209 · source
6. Filed Oct 2, 2023MOEngineOther / UnknownAcceleration & Cruise Control

   I am 86 years old. I bought the car brand new so I am the original owner. I have kept the car perfectly maintained and garaged from the day I bought it. My wife is also 86. She and I are the only ones that drive the car. To date, it has 73,822 miles on it. The main issue I am having is random, unpredictable stalling and hesitation when trying to accelerate. We have also had unintended acceleration. This always happens at the worst times which causes grave concern for our…

   NHTSA complaint #11547770 · source
7. Filed Sep 6, 202392,000 miGAEngineAcceleration & Cruise ControlVisibility & Wipers

   The contact owns a 2015 Hyundai Sonata. The contact stated while driving approximately 30 MPH, the sunroof detached from the roof of the vehicle. The cause of the failure was not yet determined, and the vehicle was not yet repaired. The vehicle also experienced severe engine knocking and the vehicle was taken to the local dealer who diagnosed that the engine was faulty and needed to be replaced. The engine was replaced, and the vehicle was repaired. In addition, several…

   NHTSA complaint #11542871 · source
8. Filed Aug 22, 202395,000 miTXTowedAcceleration & Cruise ControlTransmission & Drivetrain

   The contact’s daughter owns a 2015 Hyundai Sonata. The contact stated that while the vehicle was idling, the vehicle hesitated. The contact stated that his daughter had to depress the accelerator pedal to rev the engine. The contact then stated that on a separate occasion while driving at an undisclosed speed, the vehicle hesitated and stalled. Additionally, the contact stated that on another separate occasion while his daughter was driving at an undisclosed speed, the…

   NHTSA complaint #11540173 · source
9. Filed Jul 31, 2023TXEngineAcceleration & Cruise ControlTransmission & Drivetrain

   The engine and yes it is. Because my car turned off in the middle of the loop on the highway when there was a lot of traffic and we could have gotten hit. No it has not been. No it has not been. We were driving on the highway then the engine started sputtering and it wouldn’t go faster then 40 when I tried pulling off to the side that’s when the engine ,battery ,and oil light turned on and after that the car just shut off and wouldn’t want to turn back on.

   NHTSA complaint #11535396 · source
10. Filed Nov 15, 2022NCEngineAcceleration & Cruise Control

    told the Hyundai dealer 2 years(March 2021) ago that I was concerned about my oil light flashing periodically between scheduled oil changes. No action other than oil changes and one time they added a couple of quarts "no charge" as it again was low. Continued to change oil more often than necessary and the frequency increased. Multiple other car repairs have been happening and the oil now has to be added weekly to maintain proper amounts. Had to change spark plugs 2 times…

    NHTSA complaint #11493732 · source
11. Filed Nov 7, 202263,000 miNYCrashAcceleration & Cruise Control

    The contact owns a 2015 Hyundai Sonata. The contact stated while driving approximately 3 mph and entering a driveway, the vehicle accelerated independently and crashed into a metal gate. The contact stated no warning light was illuminated. The contact stated no air bags were deployed. The contact stated no one was injured nor sought medical attention. The contact did not contact the police department nor filed a police report. The vehicle was not drivable and was left at the…

    NHTSA complaint #11492550 · source
12. Filed Sep 12, 2022OKEngineFuel, Hybrid & EV PropulsionAcceleration & Cruise Control

    My daughter was driving on the interstate when the car went into limp mode and the engine light was flashing. We had it towed to hyundia dealership where they did an engine update. Had it for 3 months when it did the same thing to her again. Had it towed again to same dealership where they are telling me it needs a new engine.

    NHTSA complaint #11484012 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology