2015 Hyundai Sonata UNKNOWN OR OTHER
Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.
Complaint Timeline
Chronological view of owner reports
At about 30mph the sunroof suddenly flew of of my car and almost hit the car behind me thst had to avoid the flying part, for a good luck it didn’t cause a major accident because I was about get in a busy highway and this hazard could’ve caused a major ctash envolvimg multiple cars, the vehicle behind me has a dashcam that recorded the event. For God nobody got injured.
The car got the 993 campaign software engine immobilizer update and it was locked with the keyfob. It still got stolen. Thieves broke the lock on driver side door which deactivates the immobilizer. Car was found and police report was filed. It is available for inspection. Many Hyundais that have had the immobilizer update have since been stolen. The 993 software update is ineffective.
I am reporting a recurring and unresolved hybrid system failure in my 2015 Hyundai Sonata Hybrid Limited that poses an ongoing safety risk to me and my family. The issue involves a "Hybrid System Warning – Safely Stop and Do Not Drive" message that appears randomly while driving, causing the vehicle to jerking and creating dangerous conditions on the road. This issue first occurred in February 2024 and has persisted through October 2025 despite repeated service visits and costly out-of-pocket repairs. The hybrid battery was eventually replaced after 8+ months of delays, but the exact same warning and jerking symptoms returned in March 2025 and have never been properly resolved. The dealership (Crown Hyundai in St. Petersburg, FL) and Hyundai corporate case management have been unable to replicate or diagnose the problem consistently, and continue returning the vehicle to me in unsafe condition. On October 3, 2025, the same warning reappeared and the vehicle was dropped off again for yet another service attempt. Again on October 7, 2025, I was told to pick up my car, they could not replicate the issue and could not find a code to respond to. To date, I’ve paid $1,748.65 for a repair (air flappers) that did not solve the issue, and spent months without use of the vehicle, continuing to pay for insurance during that time. I believe this is a defective hybrid propulsion system that meets the threshold for investigation and possibly a recall, given the repeat safety risk and lack of resolution. Please investigate this matter for the safety of other drivers as well.
Cracked dash. This is an ongoing issue with Hyuandai since around 2009. Please investigate. Do the research. I normally wouldn't even come on here to complain. This is my 3rd Sonata. Same issue.
While driving, my 2015 Hyundai Sonata 2.0T experienced severe knocking and loss of power due to a KSDS-related engine defect. The check engine light was inoperative, and the engine now makes loud noises and emits fumes. Hyundai declined warranty coverage despite known KSDS issues. This poses a serious safety concern ( I recently purchased the car and been fixing problems every since)
What the consumer services tried to offer (More Information for case)me, instead of a replaced engine that is under my warranty. They have replaced engines before over the mileage as goodwill warranty, but refuse to do the necessary work because of mileages. KSDS is designed for any mileage, and they put a mileage limit on the vehicles warranty, that not just I, but multiple people purchased; where the justice
The vehicle had the antitheft recall service done. On 8/30/25 the vehicle was stolen. It was recovered on 9/1/25 without the catalytic converter. The insurance confirmed it was a total loss. The door lock was tampered along with the engine lock. This was a horrible experience.
My pearl white 2015 Hyundai Sonata Sport’s paint is chipping off while im driving causing paint chips to fly which has almost caused me to wreck. This is happening on the trunk roof and passenger front door.
It seems like the car is skipping.
My 2015 Hyundai Sonata with Quartz White Pearl paint continues to peel off my car and cause me to swerve thinking that there is something coming at my car like a bird due to the paint peeling so fast. This is also a concern for drivers behind me as my roof pain is peeling and may fly into their line of sight/vision which could potentially cause an accident.
WHITE PAINT PEELING OFF IN LARGE CHUNKS FROM ROOF
To whom it may concern, I was driving on the highway with my sunroof down as the weather was nice. I started to hear a flapping sound and got off at the next exit. I tried to close the sunroof but it would not close. It looked like the windshield thing for the sunroof detached on the passenger side and blocking it. A minute after I started to drive the sunroof panel detached and flew off my car. It shattered on the street in front of another car that was driving behind me. This car had to swerve to miss being hit. I immediately called the Hyundai dealership crying and the women promised me a manager would call me back. I told the lady I dont know what to do. Do I call the police because a 30-pound glass panel is shattered on the street? Do I call my insurance? She said she would have the sales manager and service manager call me back. I was so shaken and scared from the event I called out the rest of the day from work. I had to uber my son home from school because I was nervous to drive the car. If I didnt get off the next exit; would my sunroof have flown off and caused a car accident? It was really scary to see the panel fly off like paper and almost hit another car. That I could have cause another person to have an accident and they couldve gotten hurt. The whole thing is just crazy to me. I did not get a call back from hyundai yesterday. I will try to reach them today. I will uber my son to school this morning as one of the pieces is sticking out and still flapping. When I looked up the recall on my car for this; I could not believe that the hyundai fix is super glue? This car really is glued together.... Thank you to listening to my concern and you can reach me anytime at [XXX] . Thank you, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Car stalled then started smoking followed by flames. We exited vehicles and ran a safe distance away and called 911
I was driving down [XXX], about 20 miles southwest of Atlanta when I saw flames and smoke come underneath the hood of my car. I pulled over to the right shoulder and I was able to exit the vehicle before the entire front engine compartment was melted and engulfed in flames. Local FD responded and extinguished the fire. FD was unable to explain what may have caused the issue. Vehicle is a total loss. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Panoramic Sunroof randomly exploded while i was driving down the street. Appears to be a known issue and a class action lawsuit has been filed.
While driving on the 91 freeway in the Fasttrack lanes, this warning displayed on the dashboard: "Hybrid System Warning! Safely Stop and Do Not Drive." The Fasttrack lanes are on 91 freeway are cordoned off, so there is no way to get out for 10 miles. We had to continue driving, but the car started losing power after 2-3 miles and began stalling. It was an extremely dangerous situation. We were very fortunate to find a construction zone that allowed us to pull the car into a safe spot. Once the car was stopped, it would not start and had to be towed to the dealer (Cardinal Way Hyundai in Corona, CA) on May 8. The dealer ran diagnostics and sent the codes to Hyundai tech center. The tech center advised the dealer to update the system software. After updating the software the dealer returned the car to me on May 9. Previously, on Aug 17, 2020, I had the same warning light “Hybrid System Warning!...” while driving on the highway. I was able to take an exit and park the car safely. I had to get it towed to the same dealer. The dealer reported that the diagnostic “measured resistance at safety plug. Found open circuit. Replaced safety plug.” The car was fixed and returned to me on the same day. It is completely unacceptable to have a car shut down without any warning in the middle of the freeway. If we had stopped in the middle of the freeway, it would have resulted in a very bad accident and could have resulted in loss of life. The tow truck driver told us that he has towed many Hyundai or Kia hybrid cars with similar issues. This problem seems to be a systematic and Hyundai should be subject to recall these cars to fix this dangerous problem. Hyundai needs to make sure that the car owner is provided sufficient warning of any impending problems with the hybrid system. Furthermore, the onboard communication system in the Sonata hybrid is outdated and does not work, so no diagnostic reports are generated. Hyundai needs to provide free replacement of the comm system.
Panoramic sunroof exploded spontaneously while the car was driven at night. Terrifying and traumatic. Glass everywhere. No rock or anything hit it.
Driving on a busy street the car suddenly started to show a Hibrid system warning safety stop and do not drive and then the car slowed down on traffic scary situation since it was a busy road then another car pulled up and two guys help get it out of the road since the car would not start again. Our safety was at risk on the middle of the road and could possibly caused an accident. The problem still persist I towed it to the dealer and paid for a diagnostic wich the dealer took a month to return the car back to me and they did two recalls but never performed a diagnostic on the car and instead they just called the tech line and gave me a $6000.00 estimate for a hi voltage battery replacement.
My car has an anti theft defect that’s making cars like mine easy to be stolen. Over the weekend I took my kids to six flags and my car was stolen. I had my 3 kids with me and my wife. My kids are scared and feels unsafe. If theirs anything you guys can do to help me out, I will appreciate it. I do not have the money to fix my car at the time. I need my car to get back and forth to work.
My car was smoking from under the hood. I had it towed to the dealer. Service dept said valve cover. Picked car up 2 days later and less than 1/4 mile from dealer the car was smoking, I called service department was told it was normal. Stopped at red light, smoking intense, turned back to dealer. I lost my brakes, stopped by the grace of God. Passerby told me to get out, my car was on fire. 2 minutes later it was fully engulfed. Total loss.
The motor locked and the car turned of completely.
The contact owned a 2015 Hyundai Sonata. The contact stated while driving 65 mph, the vehicle began to stall and she saw flames exiting from the rear of the vehicle. The contact stated no warning light was illuminated. The contact was able to park on the side of the road and exit the vehicle before it was engulfed in flames. The fire department extinguished the fire. A fire report was not filed. The contact stated the police department did show up at the location but no police report was filed. The contact stated no one was injured nor sought medical attention. The vehicle was not drivable. The vehicle was towed to a towing lot. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 170,000.
My battery,oil and check engine light came on. The car would not start, took it to the dealer they had my car 3 weeks and they said they couldn’t pull any codes because it started up. However, they did charge the battery. I drove the car a few day and the same thing Happened where the same codes came on and car wouldn’t start. I had to find a ride to work and when I got home and started the car it started right up. I have also read plenty of reviews claiming this same things has happened to them.
I would like to start by saying I love my Hyundai. I love the way it drives. It is a 2015 Hyundai Sonata Limited, my only means of transportation. My main concern is my vehicle was made without an engine immobilizer which makes it very easy for thieves to steal my car, by removing part of the steering column and using a USB charging cable. And to add to this problem, if a thief was to break a window to gain entry in the vehicle, the window is not part of the car’s alarm system. I am aware of a lot of Hyundai vehicles being stolen due to this problem. On or about 08/16/2022, I contacted Hyundai Customer Care Main Office and the gentleman I addressed this problem to said Hyundai was supposed to be making a kit available for purchase in October 2022, with a price range of $100+ through $200+. I am upset because 1) I don’t feel like I should have to purchase this kit out of my pocket because it is not my fault Hyundai made my car this way and I wasn’t aware of this at the time of purchase and 2) I work a $10 an hour job and cannot afford this kind of purchase. I feel like Hyundai should foot the bill for this kit. I work in an area where car break-ins happen fairly often. Car break-ins happen a lot in the Fayettville NC area. I am very concerned and pray and trust Hyundai will address my concerns and will work toward a resolution for me and other Hyundai owners. Please let me know what Hyundai can do about this. Thank you in advance for taking care of this matter! Sincerely, Virginia Phelps
First I backed up into a pole, because the warning sensor did not warn me. Even while changing lanes it doesn't always warn..The panoramic sunroof detached while driving . I had to pull over . I had to put car in shop for just about a month. And then had to return it because the engine light came on . I have had to take it to the shop several times and I've only owned a year. My navigation never worked . Won't update. And blue link doesn't work right . Even though I pay it out of pocket. And now for no reason it smells like gas badly. Can't take it in because it's my only car and they never have a loaner or rental available. I've been to several hyndai dealerships.
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The 2015 Hyundai Sonata has 78 UNKNOWN OR OTHER complaints on file. Review the timeline above for detailed owner experiences.