10.0

really awful
Crashes / Fires:
1 / 5
Injuries / Deaths:
2 / 0
Average Mileage:
13,478 miles

About These NHTSA Complaints:

The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.

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« Read the previous 20 complaints

problem #20

Apr 142019

Sonata

  • 2,787 miles
I own this 2019 Sonata since 1/16/19. Was runing good at the first. But couple times start showing the engine light for seconds. But on April Sunday 14 2019 my car shows the engine light and the tire control stabilizer at the same time then the car start shaking lossing speed, the brakes getting hard and power steering.. lucky I went at 10mph to 15mph.the vehicle will be placed in a temporary engine protection mode with reduced power and acceleration. No speed no acceleration then I park in a parking lot for towing at the nearest Hyundai dealership. Technitia found code( P0638 ) active code and (P211935002A00 throttle body carbon cleaning- adjustment and found rubber grommet stuck in the throttle body roved grommet. This cause trouble with the intake and injectors making the car limp and state in protection mode. I have lucky I wasn't in the freeway at 55,60 to 65 mph. O can be a different risk and dangerous for me and others drivers. Please take this note seriously before something worse can happen to others drivers. Thank you so much.

- Waterbury, CT, USA

problem #19

Mar 162019

Sonata

  • 8,087 miles
The contact owns a 2018 Hyundai Sonata. The contact took the vehicle to fuccillo Hyundai of syracuse (2601 erie blvd E, syracuse, NY 13224, (315) 445-7900) for a 4,000 and 8,000 mile check up. The dealer performed a computer check on the vehicle. The following day, the vehicle began hesitating and sputtering. The contact managed to drive vehicle home with the check engine indicator illuminating. The vehicle was taken back to the dealer and a loaner vehicle was provided. The dealer diagnosed that the vehicle may need a new engine and was waiting to hear back from the manufacturer. A month passed and the contact called the manufacturer. The manufacturer stated that the delay was caused by a large amount of people having the same failure. The contact researched the failure online and requested a buy back. After a few days, the manufacturer called back and offered a repurchase review and promised to call back. The contact received a call back and was informed that a repurchase review would take another month to review. The manufacturer stated that they needed to conduct research to see if it fell under the repurchase review or lemon law. The contact was still waiting to hear back and contacted his state's attorney general's office. The failure mileage was 8,087.

- Syracuse, NY, USA

problem #18

Mar 062019

Sonata

  • 3,050 miles
The contact owns a 2018 Hyundai Sonata. While driving approximately 15 mph, the vehicle would not accelerate properly and the check engine indicator illuminated and continued to flash. The contact indicated that the vehicle was serviced by brown daub Hyundai (1650 butler St, easton, pa) the previous day for an engine computer update. The vehicle was towed back to the dealer, but the cause of the failure was not yet determined. The manufacturer was notified of the failure. The failure mileage was 3,050.

- Washington, NJ, USA

problem #17

Feb 222019

Sonata

  • 22,000 miles
The contact owns a 2018 Hyundai Sonata. When the vehicle was started, it sputtered and failed to accelerate over 30 mph. Also, the check engine warning indicator illuminated. The vehicle was towed to titus-will Hyundai (255 carriage loop sw, olympia, wa 98502, (888) 287-9396) where it was diagnosed that the engine and wiring harness needed to be replaced; however, the parts were on backorder. The vehicle was not repaired. The manufacturer was contacted and provided case number: 15586896. No further assistance was provided. The failure mileage was 22,000.

- Centralia, WA, USA

problem #16

Apr 092019

Sonata

  • 4,221 miles
I took the car for his first oil change and they applied a recall "software update" right after going out driving in the highway the engine started stalling not going more that 22mph, check engine on and problem in screen saying to return to dealer. I did right after and they said it was the engine wiring harness.. they game me a rental car because the harness is not in "stock" so lets see how long it takes..I just noticed there is a lot of the same problem reported to this car with the same problem. 4221 miles brand new sel+ model...

- West Des Moines, IA, USA

problem #15

Mar 252019

Sonata

  • 35,000 miles
January 2019, vehicle to dealer for recall for engine failure. March 2019, went to start vehicle. Flashing engine light. Could not get above 2000 RPM. Dealer advised to tow vehicle. Dealer advised car is in limp mode. Dealer advised possible engine replacement. Two weeks later, car is still not repaired. Now they are possibly replacing 'harness'. advised that they would have vehicle another two weeks.

- Lawrenceburg, IN, USA

problem #14

Mar 282019

Sonata

  • 5,000 miles
The contact owns a 2018 Hyundai Sonata. The contact stated that the check engine warning indicator illuminated shortly after the vehicle was purchased on March 5, 2019. Hyundai of kennesaw (2878 barrett lakes blvd, kennesaw, ga 30144, (678) 809-6990) diagnosed that the knock sensor harness needed to be replaced. The vehicle was still at the dealer receiving further testing. The manufacturer had not issued a recall for the 2015-2018 models, excluding them from NHTSA campaign number: 17V226000 (engine and engine cooling). The manufacturer was notified of the failure. The approximate failure mileage was 5,000.

- Jasper, GA, USA

problem #13

Mar 302019

Sonata

  • 4,000 miles
I have a 2018 Hyundai Sonata. I bought it on 12/26/2018. I now have 4,000 miles on it. Last month the dealership performed the computer software upgrade. Today I got a message: A possible condition with your engine control system has been detected with your 2018 Sonata [xxx] on 03/30/2019 at 04:24 pm est. A full system check is recommended to be done when convenient. The car feels like it is going to die. Is this a common problem? update 04/01/2019 well I just got back in from taking my 2018 Hyundai Sonata to the dealership. They informed me after running some test they were going to have to replace the wiring harness. That'll take about a week before they get it. In the mean time they gave me a rental from enterprise which was a 2018 Hyundai elantra. 'information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Georgetown, IN, USA

problem #12

Mar 132019

Sonata

  • 4,000 miles
The contact owns a 2018 Hyundai Sonata. While driving at an unknown speed, the vehicle stalled without warning. The vehicle had to be jumpstarted in order to operate. The vehicle was taken to boucher Hyundai of waukesha (1583 E moreland blvd, waukesha, wi 53186) where it was diagnosed that the wiring harness on the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 4,000.

- Elm Grove, WI, USA

problem #11

Feb 262019

Sonata

  • 3,000 miles
My 2018 Sonata went to the dealer for the champaign 953 software update, for engine knock sensor enhancement. After the update was completed the car immediately went into to protection mode causing the car not to accelerate when pulling out of the dealer onto a 4 lane highway, nearly causing 4 people to injured. I have been told by the dealer and by Hyundai that they have never heard of this happing before, but there are numerous complaints about this same instance happing to people on complaint sights. Hyundai needs to male it mandatory that these cars get test driven after the updates before turning the cars back over to the owners. It has now been 3 weeks since our Sonata went in for the 953 update, we still have not received our car back, the dealer states they are waiting on a wiring harness to come in. So they are performing a software update to detect engine noise related to the knock sensor, because metal debris are coming off the internal motor parts causing failure and fires, that causes the car to go into protection mode. When a car immediately goes into protection mode after the 953 update is done, they say its a bad wiring harness picking up to much noise. Isnt that a sigh of engine wear that they want to cover up with replacing a harness that will not detect the noise. It does not take a engineer to see T.hat this is a major cover

- Locust, NC, USA

problem #10

Mar 012018

Sonata

  • miles
I was one of the first people to drive off with this 2018 Sonata 2.0T trim in ending of 2017. Fast foward to now, I have been having electrical, lighting and engine problems. When driving at night, it is hard to see what's 30 feet from you on the ground because there's some parts that the light doesn't illuminate very well. When I have my car's interior lights on auto meaning to turn on, whenever I open the driver's door, it doesn't turn on. Sometimes my headlamps won't turn on neither, when I press the unlock button from my keys. Couple of months back and still is happening to this day my cars engine will start up funny or start up a couple of seconds late after pushing the start button. It even happens when I let my car sit for a day without driving. I've been to the dealer now and told them about the issue with the interior lights and I am waiting on them to get me some new lights for the interior (pretty sure that's not the problem). I know now that it's something electrical seeing all these comment/issues left on here. I paid too much to have this happening to my car. Maybe I should of just stuck with Japanese smh. Help please.

- Baytown, TX, USA

problem #9

Feb 192019

Sonata

  • 22,000 miles
The contact owns a 2018 Hyundai Sonata. While driving approximately 55 mph, the vehicle shut off without warning. The vehicle restarted itself and would not exceed 20 mph. The vehicle was driven to the contact's residence and later towed to johnson Hyundai of cary (919-439-2059, located at 5000 old raleigh rd, cary, nc 27511) where it was diagnosed that there was a knocking sound in the engine and the engine may need to be replaced. The manufacturer was made aware of the failure and ordered the dealer to perform more diagnostic tests. The vehicle was not repaired. The failure mileage was 22,000.

- Clayton, NC, USA

problem #8

Feb 142019

Sonata

  • 13,000 miles
While driving my vehicle at nearly 70 mph on the freeway, my car suddenly felt like I hit a brick wall and my check engine light came on and began flashing. I was then unable to accelarate past 55 and felt my car had a very sluggish response when stepping on the gas pedal. I was nearly hit by another car because there was no warning (break lights) when my car immediately slowed down. I then had to have my car towed 50 miles from where I was to the dealership near my home. When I brought in my car they said they had another car with the same exact issue. I called after my car had been there for approximately three days to get a status update and they said they still didn't know what was causing the issue, but that a third vehicle had now been brought in for the same issue. Today a week later, I called to get an update and the other two vehicles they are fixing with a new wiring harness; however mine they stilll are unsure what the issue is. This is now the third issue I've had with my car in less than 13,000 miles. Previously my car was having trouble starting the dealer said everything was fine. Also my front running light burned out at nearly 7K miles.

- Simi Valley, CA, USA

problem #7

Feb 112019

Sonata

  • 5,400 miles
I went into purchasing dealer for first oil change at 5100 miles, they flashed computer and loaded update Hyundai campaign 953 product improvement. About 50 miles after the recall was performed my car went into limp mode and is barely driveable. Car was also hesitating, and bucking a bit. Took it back to dealer they stated the code didn't apply to my car and flashed it again. It again went into limp mode after 50 miles or so. The recall is supposed to place the vehicle in limp mode due to rod bearing wear. My car has 5,400 miles on it and it now at a different dealer. Got information from that dealer regarding a tbs #19-01-002 and looks like engine replacement or wiring harness.

- Cambridge, MD, USA

problem #6

Feb 022019

Sonata

  • miles
I want to have all changed after the oil was changed the engine light came on in the car I wanted to stall

- Aurora, IL, USA

problem #5

Jan 302019

Sonata

  • 5,560 miles
I had a recall performed on my car. 'Hyundai campaign 953 product improvement '. 10 miles after the recall was performed my car went into limp mode and is barely driveable. The recall is supposed to place the vehicle in limp mode due to rod bearing wear. My car has 5,560miles on it and the engine is already failing.

- Lucas, TX, USA

problem #4

Jan 242019

Sonata

  • 19,500 miles
Had oil changed on 1/24/2019, they did the ECM update for the knocks senser and afterwards on the way home the car went into limp mode and check engine light came on. I also received an email from Hyundai blue link saying that an engine component had failed. Took back to dealership and they gave me a loaner. They said they would have to hear back from Hyundai in ca"? sounds like nobody knows what is going on?"

- Taylorsville, NC, USA

problem #3

Jan 192019

Sonata

  • 17,000 miles
I had an oil change on Friday 1/18/2019 the next day I'm driving on the interstate using cruise control and my car cut my cruise control off and the check engine light started flashing and my car would not go over 20mph even with the pedal all the way down to the floor. The screen in my car popped up a message that said the engine control system had some type of failure. 2 days in at the dealership and no one knows what the problem is. It's not even a year old, idles fairly hard, and now won't accelerate.

- Gray, TN, USA

problem #2

Jan 182019

Sonata

  • 4,200 miles
Dealer installed download #953 pursuant to a Hyundai recall. Afterwards the car went into "limp" mode as if there was a problem, and cannot be driven. Dealer does not know how to fix this, and is holding my car and waiting for Hyundai in California to come up with one. Mine was second car that morning that this happened to.

- New Bern, NC, USA

problem #1

Aug 012018

Sonata

  • 1,100 miles
Purchased new 2018 Sonata sel model in California. While driving, the transmission starts to hard downshift when the brake is applied. I found out that this hard downshifting and jolting/thumping of engine and transmission only occurs when coming to a stop at speeds between 10 to 15mph. It can be described as follows, after the brake pedal has been gently applied and lightly released but then the car itself applied its brake again. It terrifies the driver's driving conditions, mentally and physically.

- Los Angeles, CA, USA