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really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
48,548 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 Hyundai Sonata miscellaneous problems

miscellaneous problem

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2012 Hyundai Sonata Owner Comments

problem #14

Sep 112016


  • 60,000 miles


Vehicle has loose steering, vibrating and makes odd noise when accelerated

- Irving, TX, USA

problem #13

Sep 082016


  • 102,101 miles
The car turns off while driving and there is a loud knocking sound from the engine area. The car also hesitates, and it is a loud roaring sound from the engine area. The issues occur when the car is stationary, in motion, and on the city street and highway. When I press down on the brake the car cuts off.

- Baltimore, MD, USA

problem #12

Aug 012016


  • 86,000 miles
Car will not shift out of park- was parked and went to shift into reverse and it would not shift, called mechanic used shift release button to get out of park, brake lights do not work, cruise control doesnt work, ecs light stays on. Took car in for recall, they sold us the brake padal switch that I thought was the recall but they said would solve the problem and it did not solve the problem!!! this is my 17yr olds car and I am very nervous to have her drive this car now, but it can not be until we figure out brake lights!!

- Tamaroa, IL, USA

problem #11

Jul 182016


  • miles


I writing because I am having issue with my vehicle. It will not crank. The battery is not dead because the lights, radio comes on, it will not crank at all I have a push botton one. I took it for a oil change on July 15 2016 and had to pay a extra $75 for air filter change. Now before I got the oil change my car was fine. So on Monday 18, 2016 leaving the restaurant my car will not start.I press the botton and nothing happen I smell and saw smoke. Left up the hood nothing out of the ordinary. I read on media network, so many people having problem with their 2012 2.0 T Sonata Hyundai, car not starting and mines is one of them. I just got the car March of last year and now the car is acting up. I don't have $1200 to pay what medlin Hyundai in rocky mount can't find. The service guy says it mybe the computer of the car, when someone tried to jump start it throught it off. But I told him that before I even got a jump start. The car made a noise and white smoke came from the hood of the car. They still blaming me but I think its their fault. The services guy said that the person that change the oil and air filter the car act like it didn't want to start. So why didn't they tell me that? I feel that they mess it up or there is a issue with all the 2012 Hyundai Sonata 2.0 T that a recall need to be so the dealership car fix the all problems free. I need this to go to CEO of Hyundai. There is something truely wrong with 2012 Hyundai 2.0 T Sonata. And you know the dealership service don't even know what the problem is. He said it was no fuse blown, only thing they can assume that it's the computer is dysfunctional cause of the jump. But the car was smoking and didn't start before the jump. These Sonata is killing our pockets, even the use ones too expensive. I don't gave $1,000 and $1,000 to pay out, that they don't know what problem is. Got car from gabe rowe.

- Rocky Mount, NC, USA

problem #10

Jul 072016


  • 94,000 miles
I was on my way to work on I-65 in birmingham, Alabama and my sunroof exploded. It sounded like a bomb going off and shattered pieces of glass hit the cars behind me. Nothing hit my car. I wasn't going under an overpass, nor were there trucks around me. The dealership nor Hyundai will replace it so I will have to file a claim with my insurance and pay a $500 deductible. Hyundai has recalled other vehicles (veloster) for this exact same reason but will not fix the situation with the Sonatas! my car has the panoramic sunroof, just like the velosters. This is an extremely dangerous situation and Hyundai needs to address it!! this needs to be investigated because many people are having the same issue.

- Sylvan Springs, AL, USA

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problem #9

Dec 182015


  • 63,000 miles
Frequent issues with brakes. Latest issue, calipers needing to be replaced at 63,000 miles because the calipers are not properly decompressing. A search of recalls seems to indicate a similar issue with 2015 Sonatas. I am told by the mechanic that Hyundai Sonatas have a lot of brake issues and it is uncommon for calipers to need replacing at this stage.

- Philadelphia, PA, USA

problem #8

Jan 232016


  • 73,000 miles


1/23/2016 8:02 am I received a call from my wife who was driving her 2012 Hyundai Sonata on the I-95 in South Florida on the way to work going approximately 70 mph, when she went to accelerate to overtake a car driving slower. All the lights on the dashboard went on and the car completely lost acceleration power and the speed dropped all the way down to 40 mph. When the speed reached 40 mph, she could not accelerate anymore and hence quickly pulled off to the side of the road (upon my request). Due to the heavy traffic, she was extremely lucky not to get into an accident. When I arrived to switch cars with her, the car started fine and accelerated appropriately. I took it straight to the Hyundai dealership who after running diagnostics came up the following: No codes stored in memory and no signs of what could have caused the car to act like this. They recommended a throttle body cleaning which is currently being completed (I am writing this from delray beach Hyundai). They stated the throttle body sticking may be the cause, but went on to admit they really had no idea as diagnostics gave them no information. After this incident, we are concerned that the car is no longer safe to drive and the fact the dealership has been unable to come up with any cause is even more of a concern.

- Boynton Beach, FL, USA

problem #7

Dec 182015


  • 60,000 miles
The vehicle has a history of losing power completely. At this point I am unable to enter the car with the keyless entry, you have to do it manually. The car was parked on the street. Once you put the key in the ignition the horn/alarm goes off and doesn't stop. It also seems to be revving while it is in park. While driving I experience little power surges from the car where it accelerates with me trying to do anything. There was also another instance where the car would not start once the emergency brake was engaged. Once disengaged the car started with a little hesitation. I only had the car for 6 months and have had to bring it back to the dealer at least 6 times.

- Mount Vernon, NY, USA

problem #6

Nov 162015


  • 51,000 miles
Early this year when I started my 2012 Sonata in the morning for work it started to stall. In March when I took it to the dealer for oil change I notified them of this issue. They said the battery needed replacing. It got better afterwards until two weeks ago. I thought maybe the keyless remote needs new battery and so switched to the spare remote that I had barely used. It did not help. But I noticed the stall happened in the morning when I leave for work, not in the afternoon when I go home. Maybe because I have to use the remote to unlock the car in the afternoon and make the car connect to the "key" rather than display " key not detected." This morning I could not get the car started after tried all my tricks for numerous times. I was stranded and had to use my vacation for work. Made an appointment last week with the dealer for this Tuesday. Wonder how I am going to haul the car to the dealer if I can not get it started.

- Broken Arrow, OK, USA

problem #5

Jun 152015


  • 50,000 miles
Motor has rattle in when driving and cranking it

- Colquitt, GA, USA

problem #4

Sep 282015


  • 15,274 miles


I saw the recall notice in the paper. Call dealer, had appointment today. When arrived told that there was not a solution to the problem yet. This is bull I think Hyundai is trying to figure out a cheap way to fix the problem. What happens if I am kill or injured before they find their cheap solution. This is my only car and because of my husband recent death, I cannot afford to buy another vehicle. Please try to expedite Hyundai to fix.

- Essex, MD, USA

problem #3

Feb 072015


  • 12,000 miles
The front-end will wobble at certain speeds, around 25 & 45 mph. It has been to the dealer 3 times now. First, they fixed the alignment. Next, they said they couldn't detect anything wrong. Thirdly, I drove with the service manager, and he immediately detected a problem. He had the front 2 tires replaced, with alleviated the problem for a time, but within a couple weeks, the wobble could be felt easily again, at the same speeds as before.

- Cleveland, OH, USA

problem #2

Sep 192013


  • 6,800 miles
I was in my parking space and had to put the car in reverse to get out of the space. With my foot on the brake and the car in reverse, it took off at an incredible speed, did a semi-circle, and hit another car. I brought the car to my local Hyundai dealer who was unwilling to do anything about the event or check out the car. I plan on contacting Hyundai corporate to provide them with this information.

- Pembroke Pines, FL, USA

problem #1

Mar 082012


  • 6,500 miles
Vehicle check engine lit and all dash lights lit upon starting the car. It would not let me shift it into any other gear. Car was towed to dealer for several days with them consulting with Hyundai. They replaced some control module to repair it. -------------------------- two weeks later, the same problem occurred. Idiot lights were on after starting the car, but I could not shift it out of park. Dealership swears its a different issue and they are consulting Hyundai yet again. My car has been in the dealership for over a week now and they can't tell me when I'll get it back.

- Cumberland, RI, USA

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