Hyundai Sonata Complaints

17,026 consumer complaints on file.

#11673638July 15, 2025
UNKNOWN OR OTHER, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
When starting car warning lights came on for ABS, AEB, Cruise Control. Cruise control is locked out and not working due to these warnings.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11673697July 15, 2025
FUEL/PROPULSION SYSTEM
After having work done to repair the head gasket and spark plug. I was on mile ~300 after repairs and was nearing to fill up at a gas station, I started losing power and notice the check engine light was on and Gas smell filled the cabin. When I stopped the hood started smoking and there was a fire under the engine cover. My Vin is not listed on the fuel line recalls and I believe this is an oversite as it lists, faulty High Pressure hose can rupture and cause engine fires and that is exactly what happen in my case. I believe this Vin was Overlooked and I need the repairs complete. I have not completed any repairs because I believe this should have been recalled.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11673715July 15, 2025
ENGINE
Premature rod bearing failure at 126,750. Dealer said there was extended warranty for this failure. Turns out that Hyundai denied this because they say Recall 953 was not done. This does not reflect what I show, I show this a Service Program and probably a notice does not get sent out. I have gotten an estimate for $7848.50 for engine replace. I do not agree with this decision since it is a know problem with multiple class action lawsuits.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11673725July 15, 2025
ENGINE
The contact owns a 2011 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull over to the shoulder of the roadway, where the vehicle failed to restart. The vehicle was towed to an independent mechanic, who diagnosed a failure with the engine. The contact was informed that the engine needed to be replaced. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 21V727000 (Engine); however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11673554July 15, 2025
UNKNOWN OR OTHER, POWER TRAIN, ENGINE
After a dealer-installed software update on my 2024 Hyundai Sonata sel awd, the car began jerking during acceleration and shifting. This happens at low and moderate speeds and creates an unsafe hesitation, especially in traffic. This issue did not exist before the update. I believe the software update affected the transmission or engine control calibration. The dealership has not resolved the issue, and it poses a safety concern. Please investigate whether this is linked to a faulty update affecting other Sonata vehicles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11673236July 14, 2025
ENGINE, POWER TRAIN, UNKNOWN OR OTHER
All documents are attached as it is many separate incidents that ended knock from motor and minutes later, a piston shooting through the engine block which is what made the car inoperable
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11673110July 13, 2025
AIR BAGS
Air bag light is not coming on at all.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11673105July 13, 2025
POWER TRAIN
My car tends to jerk very hard two to three times on cold start up and I’ve read that the previous years have had this issue. They are still the same mechanically so I do not know why my year does not have a recall for it
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11673042July 12, 2025
SERVICE BRAKES, ELECTRICAL SYSTEM, UNKNOWN OR OTHER
I started the car, put it into gear and then the breaks wouldn’t work. The car dash said something like check breaks hybrid system failure do not drive. There is not recall on my car but the Hyundai service department doesn’t know how to fix it. This is the second time it’s happened. I’m scared to drive it. Please investigate!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672631July 11, 2025
ENGINE
Car keeps burning oil faster than normal which has resulted in car not starting multiple times even after a month old oil change.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672813July 11, 2025
AIR BAGS, ELECTRICAL SYSTEM, ENGINE
On [XXX] while driving approximately 1.5 hours away from home, a warning message appeared on my dashboard stating: “Hybrid System Warning. Stop and Do Not Drive.” I immediately pulled over and contacted my insurance company, who arranged for the vehicle to be towed to the nearest authorized Hyundai dealership (Thomas Hyundai in Cumberland). The warning clearly indicated that it was not safe to continue driving. Later, I found out that the issue reported (recall 198) have presented cases ending with fire of the engine. It is critical to mention that in January 2025, I attended the official manufacturer recall for this vehicle, which was supposed to ensure safety and reliability. Despite this, the vehicle failed and left me stranded in an unsafe area. Since then, I have been without my vehicle for over three weeks. I contacted Hyundai customer care and opened a case. I was repeatedly told a case manager would call me within three business days, but I never received any follow-up until I insisted. I was eventually assigned a case manager named Snowy, and also remained in contact with the dealership. On several occasions, both Snowy and the dealership assured me that the vehicle would be ready by Thursday, July 10 and that It was not until then that I could start to request a reimbursement for my rental expenses. I repeatedly asked for confirmation because I am renting a car at my own expense in order to go to work and manage my life. However, on Thursday, July 10, I called again and was told the vehicle would instead be ready by Tuesday, July 15. Then, on Friday, July 11, I received an email stating that the engine had just arrived, and that the dealership was only now able to begin repairs. After that, and only once the car is finished, Hyundai will “review” the case and determine whether I qualify for reimbursement. This is unacceptable. I have been without a vehicle for over three weeks, forced to rent a car entirely at my own expense. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA),
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672854July 11, 2025
ENGINE
This vehicle has a faulty engine design which results in extreme over-consumption of oil. After an oil change, the engine will typically empty in less than a month, which is beyond a reasonable level of oil consumption. Side effects of this include other parts of the engine wearing down quicker, including the spark plugs, which cause engine misfires. Ultimately, this vehicle's engine design causes financial hardship to it's owners and poses a potential safety risk to those who drive in it. I believe Hyundai should do a recall to fix this faulty engine (with an engine replacement if necessary).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672900July 11, 2025
SERVICE BRAKES, ENGINE
The turning signal gives the opposite signals sometimes.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672497July 10, 2025
ELECTRICAL SYSTEM
What component or system failed or malfunctioned, and is it available for inspection upon request? RANDOM TOTAL ELECTRICAL FAILURE (DOORS WON'T UNLOCK, CAR UNRESPONSIVE) How was your safety or the safety of others put at risk? DIFFICULT TO GAIN MANUAL ENTRY TO CAR, PARTICULARLY IN DARK SITUATIONS Has the problem been reproduced or confirmed by a dealer or independent service center? NO, I HAVE TAKEN THE CAR IN FOR SERVICE TWICE AND THE ISSUE HAS NOT BEEN CORRECTED. THE CAR IS BACK AT THE DEALERSHIP NOW FOR A THIRD ATTEMPT. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? YES Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? NO As a reference: [XXX] Key Takeaways from the Thread: Several 2021 Hyundai Sonata Hybrid owners (and a few Ioniq and Elantra Hybrid owners) are reporting the exact same symptoms: Random total electrical failure (doors won’t unlock, car unresponsive) Requires manual key to enter 12V battery reset button inside vehicle restores power No error codes or permanent fixes from dealerships Issue occurs sporadically, making it difficult to replicate or diagnose Some dealers have replaced the 12V battery or DC-DC converter, but results are mixed No formal recall exists yet, despite growing reports INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672418July 10, 2025
ENGINE
I had knocking in the engine from the auto body shop and my extend warranty told me this is the problem that I have
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672228July 9, 2025
STEERING
Took car to my local mechanic for a clunking sound when turning steering wheel side to side, while standing still. Mechanic states problem at steering knuckle. In addition he stated that there is a Hyundai recall for this problem. I haven’t been able to find the recall for the steering problem when submitting my VIN.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672363July 9, 2025
ENGINE
My engine seized and I lost power. This is the second engine this has happened to. I was given a extended warranty, but Hyundai is refusing to pay for a new engine. The mechanic advised me they are replacing engines three times a week. Mine was denied even though my engine only has 76,000 miles and my warranty is still good. This engine problem should be a new recall since the same problem is still occurring. The engine light did come on blinking. When I took it to the dealer. They knew the problem before looking at my engine since so many others need to have thiers replaced. The dealership confirmed i need a new engine. They made me send in my oil changes. They were upset I didn't have any oil receipts for my previous engine even thought it was replaced at a Hyundai dealership the first time. Consumers should not have to replace two engines. This is a safety concern with it losing power so quickly.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672238July 9, 2025
FUEL/PROPULSION SYSTEM
Failed fuel injector caused 3rd cylinder misfire car only has 30,000 miles I'm the second owner I've only had it 2 weeks and this issue happened.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672179July 9, 2025
ENGINE
Coming home from work I stopped at a red light and when I tried to accelerate the vehicle was surging and jerking shaking and wouldn't pick up speed 2 min later the check engine light appeared flashing thankfully I was 5 min from home got the car towed the next morning to hyundai dealership said it was an cylinder misfire the car only has 30,000 miles on it
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11671946July 8, 2025
SERVICE BRAKES, ELECTRICAL SYSTEM
I drive a 2012 Hyundai Sonata Limited. After a recent fill-up, I began experiencing delayed acceleration, engine hesitation, and what appears to be misfiring—especially at low throttle. Most notably, the brake lights stay illuminated even when the car is turned off, which drains the battery and poses a major safety hazard. I scanned the vehicle with an OBD-II scanner and received code P0504, which points to a brake light switch malfunction. I also noticed that pressing the start button with my foot off the brake still starts the engine instead of going into accessory mode—confirming abnormal brake signal behavior. I replaced the brake light switch, which temporarily fixed the issue, but the symptoms returned within a day. After researching, I found there was a recall (NHTSA 15V759000) for a nearly identical issue involving the brake light switch and stopper pad. However, my VIN is not listed, even though I am experiencing the same safety-critical symptoms. This issue poses a significant safety risk on the road, and I believe my vehicle should be included in the affected population of the recall or issued a Technical Service Bulletin extension.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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