general problems of the 2012 Hyundai Sonata - part 1

123 problems related to equipment have been reported for the 2012 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Hyundai Sonata based on all problems reported for the 2012 Sonata.

1 Equipment problem

Failure Date: 05/28/2026

Unknown car was driving fine no warning lights and the car died. Tried to stat back up and engine wiring harness on top of motor caught on fire.

2 Equipment problem

Failure Date: 05/13/2026

As I was merging onto the interstate I put my foot on the gas pedal to give it a little more gas then usual to get pulled out and all of a sudden all the lights on the dash board illuminated and it slowly lost all power I was able to move it out of the road . . . There was no loud ,knocking or ticking noises prior to this happening there was no type of any kind of warning . . My car is the push start button so after the car died completely I hit the push button and all the lights on the dash came on the radio worked and everything else seemed to be working it was when I went to put my foot on the brake to start it it would do nothing it would not start at all . . I was still able to put it in neutral even after the incident happened . I had it towed t Hyundai of bristol to have it inspected well they did verifi that the engine was locked up but failed to give me any information on the test they ran or how they keep it was locked up and what locked it up so then they have my car over a week and they tell me I need a new engine but then contact me to tell ke that hma refused to replace the engine on warranty and I had the campaign 953 completed the knox sensor thing before my car broke down so then I had to pay for towing once again out of my pocket to go pick the car from their dealership so when I got there to get my car the service was not that great and my car was in a mess very uncalled for the battery to the car was completely dead with that being said we had to use another battery to just get it turned on to even put it in neutral well then fuel started spraying from the fuel line , the engine cover was left off right along with engine mount was taken off and they even took the belt off there were bolts laying all over my hood of my car and I'm pretty sure we lost a few transporting the car back . . Their service they provided was not business/professional behavior and very disrespectful at that . . Returning my car in that condition was very unnecessary.

3 Equipment problem

Failure Date: 04/10/2026

Vehicle engine caught fire in April 2026! tow company sold for parts without my permission! immediately after gaining possession of my car. I didn't have comprehensive insurance, only basic. I had a brain bleed stroke Nov. 2022 and this is causing stress, setbacks. No attorneys want to take the case because there was no injuries! I jumped out in time. Thank god!.

4 Equipment problem

Failure Date: 02/03/2026

My 2012 Hyundai Sonata recently had an engine replacement completed under a Hyundai recall. Immediately after the recall repair, the vehicle began shaking while driving, produced a burning smell, and the air conditioning stopped working, none of which occurred prior to the recall repair. These symptoms started immediately after the engine replacement, indicating a possible improper or unsafe installation. I believe the vehicle is unsafe to drive due to the burning smell and shaking. I contacted Hyundai customer service and was told the issue must be resolved with the dealership. However, the dealership has refused timely inspection, has dismissed my safety concerns, and has declined to provide a rental or loaner vehicle, leaving me without safe transportation. This is a post-recall safety issue, and I am concerned about the risk of fire or mechanical failure due to the burning smell and vehicle instability. I am requesting this issue be formally investigated.

5 Equipment problem

Failure Date: 11/23/2025

Noticed there’s a crack on the passenger side dashboard of the car that’s about 12 inches long. From what I read this could cause issues with any possible airbag deployment.

6 Equipment problem

Failure Date: 11/03/2025

The vehicle dashboard is severely cracked. It doesn’t appear to be from wear and tear.

7 Equipment problem

Failure Date: 10/17/2025

No incident to report. Vehicle not regularly driven in about 5 years, other than to keep battery charged. But charge not hold. Have to charge battery again the next day. This is to reporting a crack in the passenger side dashboard where airbag is located.

8 Equipment problem

Failure Date: 10/01/2025

This is the 2nd Hyundai I've owned, same year make and model. The first one was totaled due to the air bag deployment. The accident did not warrant the air bag deploying. I should have reported it at the time. I didn't realize that I could and now it's too late. The claim has already been submitted. Now, we have the same exact car and a crack has appeared on the passenger dash. My concern is the airbag. The crack just appeared from nowhere. I do not feel that we should have to pay for a replacement dash. Is this something that can be repaired by Hyundai, as it poses a risk to my 18 year old student driver. My number is 540-686-5624, c. Wills136@comcast. Net.

9 Equipment problem

Failure Date: 07/12/2025

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!.

10 Equipment problem

Failure Date: 01/03/2025

Car went complete stall after a warning light came off “hybrid system warning - check brakes” I am completely braked, but when I slowly releasing the brake pedal, there’s was a loud grinding noice and the wheels wouldn’t go forward at all, so I have to step on the brake again . I got stuck in the middle of the road and couldn’t park on the right curb since the car randomly got stalled completely. It took almost 40mins for the warning issue to go away and the car went back to normal. However, it’s completely a safety issue for the car to randomly stall in the middle of driving! I could be driving to fast traffic on a freeway or wide street where accidents can occur since I couldn’t even drive it a bit to park on the curb. On top of this - I occasionally get “hybrid system warning” whenever I am in the middle of driving and I always have to pull over and wait at least half an hour for it to go away, it’s been happening for few years now, and tonight was the most dangerous one so far!!! please make Hyundai do a recall on the hybrid battery diagnose or replacement.

11 Equipment problem

Failure Date: 09/09/2024

We received a recall letter for 198 and 251. We called and made the appointment for September 9, 2024. We took the car at five star Hyundai of macon. 3010 riverside dr. Macon, GA 31210. Phone: (478) 309-8308. We called in October to check on our vehicle status, so they are still working on it. We called back again because they didn't communicate well with customers and told us the car was ready. We went to the dealership to pick the car and when we got in the car to leave, without doing anything, the brake light came on and didn't move. We were never able to go because of this. The mechanic came and took the car and said let me check. He took the car for a short ride and said we need it to keep it. Then, they called tell us that the car needed a brake module and that would cost us 6700 dollars. I said that is unacceptable because the car worked fine when we took it to you for a free recall. They reduced the price to 3000 dollars and our car is still with them. We want our car fixed and running but this is not the way it should have to be. Our car is still in macon at 5- star Hyundai. Few more days and we will 5 months without car. They never provide another vehicle. This has put us on a hardship because my husband goes to work early, then comeback and pick me up and take me to work then, he has to picked me up too. We have called the corporate office and have received a case number. The only communication that exists is between the corporate offices of Hyundai and us. The dealer will not return calls or texts. We haven't got any updates recently. They only thing we got told on christmas time it was we must bring a check or a card to be able to pay. We have been paying insurance on that vehicle for what? if we haven't be able to drive. We are frustrated. We live about 95 miles away from the dealership and we can't check on our vehicle that easy. You don't know how much we regret this and how we really going to know if they are doing a good job or not.

12 Equipment problem

Failure Date: 08/31/2024

When driving (at any speed) car error message comes up that says "hybryd system warning safely stop and do not drive" then when that light goes out a new warning comes up that says "check brake" at this time the car will slow itself down until the car stops completely - even if you have your foot all the way on the gas pedal. There's no pattern to when it happens, it can happen on any drive at any time. When this happens all I can do is turn the car off and wait to restart car to keep driving. The front brakes have replaced, the back brakes and rotors have been replaced and the brake pump was replaced but, the problem persists. Primarily this is a safety issue if I'm on the highway, or anywhere I can't really pull over. A perfect example of this is on 8/31/2024 my son received a warning citation for "improper stopping" the remarks on the citation say " was parked on side of roadway due to car not wanting to accelerate but, could not move outside of the roadway". Basically the car slowed down but, completely shut down in an area that wasn't safe to be parked or sitting. It's dangerous for me and any other driver on the road that's behind me or on either side of me. After researching online it seems this is a common issue that Hyundai has not figured out yet. Other consumers have spent thousands on repairs thru Hyundai and still have not resolved the issue. Please help me figure this out.

13 Equipment problem

Failure Date: 07/11/2024

Active air lap warning. Active air flap malfunction.

14 Equipment problem

Failure Date: 01/30/2024

My brake lights are constantly needing replaced. Sometimes they stay on even when I'm not braking, other times they won't come on at all when I brake. I've gotten them replaced many times but it doesn't seem to fix the problem. I've almost gotten rear ended 3 times now bc my lights have failed to come on when hitting the brakes.

15 Equipment problem

Failure Date: 10/18/2023

Driving and vehicle caught on fire under hood of car.

16 Equipment problem

Failure Date: 09/10/2023

My car was stolen it is Hyundai Sonata 2012 although anti software has been upgraded . It is been 10 days since then my car was not recovered.

17 Equipment problem

Failure Date: 08/01/2023

I’ve been having issues with the brake lights being sometimey sometime it works and sometimes not, and almost been in accidents once too many times. I’ve also notice a lot of Hyundais especially Sonatas that’s on the road have the same issue. I’m at a loss in what to do with having to change light bulbs every month it acts up with both break lights. Horn doesn’t work. It stopped months ago and fused changes and still no horn work. The other day while driving it brought someone was blowing at me so I turned down the radio and heard my very own horn blow on it’s own several times it does this off n on even at the light or while driving. I don’t have money to fix all these issues with this car. Hopefully we can get a recall and get this fixed!.

18 Equipment problem

Failure Date: 05/01/2023

I have a 2012 Hyundai Sonata hybrid that has a problem with its abs module. It is overheating and causes my car to stop its brake and motor functions while driving. I contacted the dealership to get a rental or replacement in the meantime and they told me there is nothing they can do and to drive with caution. I called the manufacturer to get a rental for the meantime and they told me the same thing. I have looked on the recall documents and it says they should give me a vehicle in the meantime if it is unsafe to drive. Please, I don't even want the car at this point because of all the problems with it and with my dissatisfaction with customer service from any Hyundai business. But if I could just get a car that is safe to drive while I wait for the recall to have a remedy , I would take that.

19 Equipment problem

Failure Date: 02/02/2023

This model does not have an engine immobilizer and the rear windows are not connected to the alarm system. My car was stolen in the middle of the day and there are no viable security measures for my car. This is incredibly dangerous and quite frankly ludicrous that Hyundai has not recalled the cars to install the proper security measures. I now have out of pocket expenses related to this incident and am still exposed to future theft because Hyundai failed and is continuing to fail ts consumers.

20 Equipment problem

Failure Date: 01/30/2023

The vehicle have shift control problem, it jerks hard when put into drive or reverse, also when going up a small hill it feels like the vehicle hangs in between changing from electric to gas. Also there is always a warning that comes on saying " hybrid system warning safety stop and do not drive". The car stops when driving, which makes it dangerous. Took it to two dealership in mckinney and irving and they could not fix the problem but rather charge me for diagnosis. All they say is buy new transmission. I called Hyundai for help and all they tell me is that there is no recall on 2012 hybrid model. Its frustrating because thats the only vehicle that I used for work. Need help. Thanks.

21 Equipment problem

Failure Date: 01/03/2023

My car started on fire while being stopped at a signal light.

22 Equipment problem

Failure Date: 09/30/2022

I was driving on a busy street when all of a sudden. My car reduce speed hesitated there was a pull over safely and don't drive this vehicle warning message every light on the dash came on and shut off in the middle of a busy street. Thank god I didnt get hit didn't get the chance to pull over the car just shut off. The whole car died I had to have it towed way I tried changing 12 v battery to a brand new one still didn't work. I've had it towed to Hyundai dealer. What is wrong with this car? still don't kno this happened in September of 2022 took it 2 different Hyundai dealerships. As I've been researching this is happening to a lot of people. With the same make a model car. I talk to corporate. They can't help me with anything because it's over a 150000 miles. You would think that they would help with some of the cause being the fact that is happening to all of the hybrid cars.

23 Equipment problem

Failure Date: 09/25/2022

Received a warning message saying pull over safely do not drive this vehicle in the middle of the road as I'm driving all the warning lights on the dash came on . The car jerked then the car died.

24 Equipment problem

Failure Date: 09/01/2022

Dash board has been completely cracked. I’m scared the airbags are effected by it or will deploy unexpectedly there are other people with the same issue. There has been no damage or accidents with this vehicle.

25 Equipment problem

Failure Date: 08/29/2022

When driving at higher speeds 50+mph, hybrid battery warning flashes, alarm beeps, warning states to safely pull over and stop. Warning goes away after turning the car on and off a few times. Dealer states they can not duplicate problem and can not diagnose. Have visited dealer twice now with she results.

26 Equipment problem

Failure Date: 08/22/2022

My "Hyundai system warning safely stop and don't drive". Light went off with my brake light on also, we were driving on the freeway going around 60 mph I was I'm the middle lane causing me to have to hurry and pull over as car came to complete stop. I went to brake check to see if the breaks needed to be replaced and after inspection they said everything was fine, brakes, rotors and brake fluid was fine it's been doing this more often now. .

27 Equipment problem

Failure Date: 07/26/2022

I was on the expressway and car hesitated and jerked while speed began to increase followed by hybrid warning system alert. (pull over and stop the vehicle) with a flashing ready light. Could have caused a major accident with loss of life as there was no place to safely pull over. Warning lights came in immediately after the cat jerked.

28 Equipment problem

Failure Date: 06/30/2022

There were no warnings or indicators of a problem. My husband was driving down the highway when he noticed smoke coming from under the hood. He pulled over, but the car was already on fire. The fire department put out the fire, and the car is likely to be totaled by insurance. The car is currently available for inspection but will be taken into possession by insurance soon.

29 Equipment problem

Failure Date: 06/10/2022

After recall repairs at Hyundai dealer in danbury CT during the past few years, the engine light remains on or comes back on the next time the car is driven. Never had issue before these recall repairs. The car has been returned countless times to dealer to correct repairs and never successful. After multiple incidents of losing engine power and having to pull off highway I retuned to dealer again where they claimed fuel tank and fuel pump needed replacement for nearly $3,000 but never said if this was related to the ongoing recall repair issues or the engine coming on. I had another garage smoke test system and confirm gas tank didn’t need replacement. Error codes are related to recall parts in Hyundai tsbs for recall and other issues. Hyundai dealer and corporate hq level consumer affairs remain unable or unwillingly ensure repairs are done correctly. All I want is the vehicle to be safe for family use.

30 Equipment problem

Failure Date: 05/16/2022

The car was running and just stopped working in the middle of the highway the warning lights came out and I couldn't be able to start the car since that day .

31 Equipment problem

Failure Date: 03/25/2022

As I was driving on the highway, my car engine stalled and all the interior dashboard lights came on. I was unable to accelerate although all other features of my car worked (steering, brakes, radio, bluetooth, etc. . . ). I was barely able to get off the highway safely as the highway I was on had no shoulder that was safely accessible. Luckily, I was in the far right lane already which allowed me to exit the highway. I was just barely able to exit the highway and move to the middle and far right lane of the service road before my car came to a complete stop. I attempted to turn my car off and back on without success. At this point, I could start to smell burning of something and knew I needed to exit the car immediately, however, I was unable to do so due to traffic on the driver side of my car. I noticed smoke coming from my engine which prompted to me to jump out of the car without continuing to pay attention to the traffic that was passing me. I called 911 to alert them of my car impeding traffic, potentially causing another wreck, and the potential that my car may be on fire. After making those statements to dispatch, flames shot forward from my hood and I was able to move away from my car. The fire department arrived on scene but not before the flames had reached 12+ feet as they were taller than the fire truck. The firefighters were able to put out the flames. My car engine was completely melted from the fire. At this point, the dealership, insurance agent or any other representative has determined a cause of the fire or has looked at my car. No warning lights to indicate a malfunction was visible prior to the incident. No noises or engine malfunctions were noted prior to the incident.

32 Equipment problem

Failure Date: 03/16/2022

Front and back lights keep going out. Replacing monthly. Also air bag light starting to show off and on.

33 Equipment problem

Failure Date: 03/16/2022

Limp mode on the 16th of March, no symptoms prior to entering limp mode. Check engine light was illuminated and blinking & a knocking sound came from under the hood, along with not being able to get over 1800 rpms before having to shift. Drove back home until the next day on March 17th went to try to take it to a manufacturing company and did not make it. While in the middle of driving it had a loud bang under hood and left me on side the road. Could not crank it again.

34 Equipment problem

Failure Date: 03/10/2022

It all started with the electronic system. Both of my brake lights burned, leaving huge holes in the back of my brake light bracket. Replace the whole brake assembly on both brake light fixtures, then now my horn is not working—nothing to do with the relay or fuse.

35 Equipment problem

Failure Date: 02/21/2022

B pillar separated from the frame during collision causing catastrophic intrusion into the cabin upon impact leading to death of the driver. No other occupants in the vehicle. Multiple investigators noted the b pillar failure upon inspection. Independent, certified crash reconstruction expert also noticed immediately that the b pillar had failed which caused cabin intrusion to an extraordinary degree considering the 2 vehicles involved were going less than 40mph. Vehicle is available for inspection. In addition, edr data reveals that although throttle was engaged, rpm's remained at idle up to the time of impact. Driver pushing on the gas and vehicle not responding.



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