The engine started to make a loud ticking/knock when cold. Hyundai will not do anything saying it is "normal". this car has a 2.0 liter nu engine on the atkinson cycle. There were recalls in the past for the nu engine and it looks like there needs to be another one.

- Hackettstown, NJ, USA

1. low RPM approx 300, rough idle. A/C usage increses the random intermittent occurrence. 40,000 miles when issue was noticed. 2. relay switch, rapidly turns on and off. Usually at stops and idle. (sound location under hood/ engine compartment.) 32,000 miles when issues was noticed. 3. passenger side, front occupant seat sensor. Overly sensative, warning for seat belt when no passenger. Cell phone and or weight less than 5 lbs. 5,000 miles when issued was noticed

- Fresno, CA, USA

My car have problem with electric system the brake light fail every 2 weeks. When change the shift to drive to reverse loss the reverse

- Fajardo, PR, USA

The contact owns a 2017 Hyundai Elantra. While driving various speeds, the vehicle lost power and failed to accelerate. All the warning indicators illuminated on the instrument panel. The contact powered off the engine while in traffic. Once restarted, the vehicle was able to drive normally. In addition, while at a traffic light or stop sign, the vehicle would stall and all the warning indicators illuminated. The vehicle was able to coast to the side of the road, where it was powered off and restarted. The vehicle was later taken to atlantic Hyundai (located at 193 sunrise hwy North service rd, West islip, NY 11795, (631) 587-0700), but was not diagnosed or repaired. The manufacturer was not notified of the failures. The approximate failure mileage was 3,000.

- Bay Shore, NY, USA

The car is slow accelerate like something is wrong with it. It started the year 2018. The care was purchased 2/17/17 with 25 miles on it. The dealer claims they can find nothing wrong.

- Cleveland, OH, USA

34000 miles, equipped with smart key. Key was functioning, allowing entrance and unlock/lock/alarm functionality, but car would not start. Used roadside assistance to have towed to Hyundai dealership where they diagnosed the problem as a faulty starter. Vehicle was parked and had previously shown some hesitation with earlier attempts to start.

- Arlington Heights, IL, USA

The contact owns a 2017 Hyundai Elantra. The contact stated that the vehicle lost power without warning while driving. The vehicle was able to be coasted to the side of the road. The vehicle was restarted and was able to drive normally. The vehicle was taken to team Hyundai of bend (2250 ne hwy 20, bend, or 97701, (833) 236-6111) where it was diagnosed that the lack of oil changes caused the failure. The vehicle was not repaired. The manufacturer was notified of the failure and opened case number: 11617234. The approximate failure mileage was 26,400.

- Klamath Falls, OR, USA

Coils have been replaced to both number 2 and number 3 cylinders and the car does not have 20K on it yet. The symptoms were poor performance, including a feeling like the vehicle was going to stall and the inability to go much over 45 mph. Check engine light came on both times that this happened.

- Lake Mary, FL, USA

I first experienced the problem 08/14/18 driving home from work on I295N, the check engine light came on and the car didn't want to accelerate. On 08/16/18 the same problem occurred but this time it lasted until I made it late that evening. I took it to Hyundai of orange park 08/17/18 here in jacksonville and the problem could not be duplicated. As I was driving to work 08/22/18 my car started doing the same thing only this time you could feel the vibration of the car not wanting to accelerate and the check engine would go off as I'm changing gears and soon as I am done shifting it stays illuminated.I called the service center again and she says to bring it back in for testing and they can only fix it if they can duplicate the problem. I am very uncomfortable with driving this vehicle in traffic not knowing if it will cutoff and I am hit.

- Jacksonville, FL, USA

Engine light came on. Whole engine had to be replaced. Found out engines are dangerous and have exploded. Engines are on back order because of so many Elantra needing a new engine. This should be investigated because no one is warning Elantra owners about this until the cars break down. I am still without my car since June because engines are on back order until late August/early September.

- Mesquite, TX, USA

The contact owns a 2017 Hyundai Elantra. While reversing the vehicle, the back up camera became inoperable. The vehicle was taken to the dealer (gerald Hyundai, 209 hansen blvd, North Aurora, il 60542), but the failure was unable to be duplicated. The vehicle was not repaired. The contact also stated that the vehicle would intermittently start and then turn off, and the driver and passenger windows failed to operate correctly. The vehicle was taken back to the same dealer where it was diagnosed that there were failures with the engine bracket mount and electrical system. The vehicle was repaired. While driving various speeds, the steering wheel seized. The vehicle was returned to the dealer where it was diagnosed that the mdc bolt needed to be replaced; however, the dealer recommended that the steering column be replaced. The vehicle was repaired. The manufacturer was notified and informed the contact that they would assist by deducting one vehicle payment. The failure mileage was approximately 4,200.

- Geneva, IL, USA

This complaint is involving usa auto care and abc Hyundai I went to have an oil change done at usa auto care and a week later my oil plug fell out of my car and I lost all my oil had my car towed to Hyundai Hyundai put a new plug in there refilled with oil show me everything was okay so I proceeded to go to usa auto care number for and try and get the money that I paid to abc Hyundai for the oil in the plugs on my way my engine locked up car came to a stop and shut off I then have the car towed back to Hyundai and was notified by Hyundai that my engine was pretty much done for call progressive insurance my insurance at the time notified them of the claim they sent someone down to take pictures they got back with me after a few days and my case was transferred to about three different people because the original agent had to leave for maternity leave and I was notified by one of the other agents that was on my case that it would not be covered by progressive insurance because it was a non comprehensive accident and that it wasn't in a physical accident causing body damage I also called my warranty because my car is brand new and they told me it was boy because I did not have the oil change done at Hyundai after a couple of weeks I was notified by abc Hyundai that my car was fixed thought it was through the warranty and they change their mind but my insurance went ahead and completed the claim they never notified me of them taking the claim no emails or correspondence what I was notified by abc Hyundai to come get my car I was told that I had to pay a $1,000 deductible and that my insurance went ahead and completed the claim I am on social security I do not have $1,000 sitting around and I was also told that progressive could not cover it now I'm stuck because I can't afford the deductible and I can't use my car to do uber and make the money I need some guidance in this

- Las Vegas, NV, USA

Blows cold air when idling in cold weather(below 0) temp guage drops to cold, windshield starts fogging up have to pull over turn blower down one speed or it won't heat up again !! pretty dangerous in highway traffic ! had it back to dealer twice and said it was thermostat, but it did not fix problem........have talked to other same vehicle owners as well as internet search and seems to have been happening to other older Elantra vehicles. What is being done about this ongoing problem and definite safety and nuisance problem "????"

- Nipigon, MN, USA

I was driving home from work one night and after leaving gas station pulling out of parking lot I was stopping behind car in front of me when my engine stalled so I put car in park and restarted it only to move about five feet when engine stalled again was able to restart and get out onto highway until I came to a red traffic light as I proceeded to stop engine stalled again after restarting it no issues all the way home two days later I was heading out of work to get lunch and coming around a jug handle car engine stalled again restarted and made it back to work. Now I am writting to try and solve this dangerous issue at hand.

- Old Bridge, NJ, USA

The contact owns a 2017 Hyundai Elantra. While driving at unknown speeds, the accelerator pedal was applied and traveled to the floorboard. The vehicle hesitated and stalled without warning. The vehicle was taken to cardinale way Hyundai (2525 wardlow rd, corona, ca 92882), but the failure was unable to be duplicated. The vehicle was not diagnosed or repaired. Additionally, the vehicle was taken to riverside metro auto group (8330 Indiana ave, riverside, ca 92504), but they were also unable to duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The failure mileage was 17,000.

- Corona, CA, USA

Below 50 degrees it takes the heater an extremely long period for the car to reach normal operating temp and then when the heater is turned on it falls back to almost into the cold position and begins to blow cool air. The temp gauge will then go up while driving but will go down toward the cold position while idling. My other car is a 2011 Elantra and have no issues with it as it warms up in just a couple of miles and stays warm and blows hot air. Dealership has checked it out and says its working fine but there are several cases on the internet reporting the same with other owners and even found where hyundia has issued a tsb replacing some thermostats in the 2017 models.

- Shawnee, KS, USA

Intermittently the engine idles erraticly and check engine light come on, looses power.it happens when car is moving or stationary

- Jacksonville, FL, USA

Car stalled while driving down road. Hyundai replacing engine.

- Middle Grove, NY, USA

My car will not start sometimes, and the keys won't handle the signals to the car. If I were to want to turn it on it won't, when this situation happens. Also, this has happened twice. I park my car, and it won't turn on, not even the dashboard lights. The engine light does not come on so I the dealership can't scan it supposedly. I am worried this will happen while I am driving.

- Rincon, NM, USA

Was driving on interstate 287 w when the car shut down. There was no warning light. I had to quickly try to get the car to the shoulder. There was a burning smell when the car shut down. The Elantra was bought new and I only owned it for 5 months. I called aaa and they towed us to their gas station in NY. From there, another tow truck took us to the Mazda repair location, in NJ, which does repairs for the Hyundai dealer. They put oil in the car and then realized that there was no oil in the car. They stated we needed a new engine and it would take one month to order and install. Only two weeks earlier, we went to that same repair location for a 5,000 mile check up where they did an oil change. Nothing was wrong with the car. I am 88 and very lucky I knew what to do when the car shut down. I hope this does not happened to a new driver.

- Pequannock, NJ, USA