general problems of the 2018 Hyundai Elantra

I have been having transmission issues with my car since before July 2024. The transmission would stutter or not engage when I put my foot on the accelerator. The transmission failed in November 2024 and was eventually replaced by Hyundai in may 2025. I noticed stuttering the first day of having my car back but was told there was nothing wrong with it. Today, sept. 11, I was making a left turn on a busy two lane road. I had enough distance between the oncoming truck to make the turn. When I put my foot on the accelerator, my car rolls into the road but clutch is not engaging. As the truck is now fast approaching my car that's basically sitting in the road the clutch engages. Since my foot had been on the accelerator the whole time, I was probably at like 3000rpm so we lunged forward slamming our heads into the seat. Every time I have taken this car to Hyundai complaining about issues with the transmission they say it's perfectly fine. Since their certified technicians say it's perfectly fine, then I am only left to assume that there is an inherent flaw in the transmission that is allowing events like this to occur and based on my experience have the potential to result in a crash.

Had to do 3 oil changes in a month had to change ignition coil that had been changed a month ago spark plugs were completely covered in oil was driving and it literally just stopped every time the oil would be checked it wouldn't be any on the dipstick.

I bought my Hyundai Elantra 2018 in 2022. It started knocking by 2023 and I was told by the dealership it was plastic hitting the tire. I brought it back & had it scanned prior because the knocking never stopped. And another dealership confirmed it was the sealed transmission. There is no dipstick to check the fluid & it says in the book the fluid is good for the life of the transmission. The dealership I initially bought it from acted like it was my fault so my car sat may until August 2024. Finally, after I found out the unlimited warranty I paid for was never submitted in 2022 it was approved. They then replaced it with a refurbished transmission which I didn't know until I got my car back. I had mentioned an oil leak & lots of play in the engine that November after replacing it. They said there was no leak or play in the engine. Now in January I had died at the four way & almost coasted into the parking lot nearest to me. Mid me picking my daughter up from school. Due to the leak.

Engine is knocking cannot find a solution for this problem car stalls wen coming to a stop the car completely powers off , noticing a weird smell now ,.

While driving on the expressway, my vehicle suddenly stalled out. I was able to restart in but the car would not go over 25mph. I was able to pull off the next exit and call for a tow truck. My vehicle was brought to a local shop and they pulled the engine and find that it was shot. Due to Hyundai, they requested to do their own diagnostic and found the same issue. The vehicle ad less than 80,000 miles on it. I received an invoice for repairs required which was over $16,000 in repairs including replacing the engine. I pleaded that they cover the engine and this seems to be a recurring issue with this model. They refused. I am stuck with a vehicle I cannot a drive and is now sitting in my driveway with no option but to wait for a open recall.

While diving the vehicle started to sputter and the ignition turned off. I was able to start it but the vehicle was making loud clunking sounds and max speed of 10mph. I pulled off on the side of the road and called for a tow to a reputable repair clinic. I told them what happened and they stayed they would be required to remove the engine to determine the issue. $$$ I paid the funds and they informed me the engine was shot. The vehicle has just over 80,000 miles. I contacted Hyundai directly and was told the manufacturer 100,000 mile powertrain warranty was invalid due to me not being the I original owner. I convinced them to take a look and make their determination. After paying out of pocket again for towing and the $175 I initial service fee Hyundai again told me the engine was shot and their was other issues alongside the engine that would need to be fixed. They gave me a quote of over $16,000+ on a vehicle that was less than 6 years old and under 85000 miles. None of which they stated was covered under their powertrain warranty. The vehicle is blue booked at about $5,000 and I spent less the what would be required to repair the vehicle. Hyundai has been zero help, they have not supported their product even after I was told by a reputable resalesman that there is a silent recall on this engine for this issue. Im left without a car, still being required to pay the car payment to the loan company and keep full coverage on a car that hasn't driven since early may 2024 and the insurance company isn't helping because the vehicle wasn't in a accident and is an electrical/manufacturing issue, regardless that I have loan lease payoff. I honestly need some advice. Not to mention I am a disabled veteran, Hyundai will not pull any strings. It's sad because I know this is no fault of my own and had taken care of all the vehicles needs when required (oil, tires, spark plugs, alignments ect. . What should I do??.

In early may 2023 I was driving my 2018 Elantra vehicle on the expressway. I had hot an area where there was traffic and had to slow down and move along with the speeds everyone else was going. When I slowed down my engine quit. Everything turned off and the car was stalled. I was able to turn the car back on and start the engine but there was a loud knocking sound coming from the engine and when applying my foot on the gas it wasn't going anywhere. It stalled in traffic again. I put it in park, and restarted it and got enough gas for it to move and get off the main road. I called a tow company and had a certified mechanic take apart the engine $600 and inform me the engine was shot. The car had maybe 80,000 miles on it. I had no idea what to do. The car sat at the repair shop for several weeks while I figured out what to do. I had it towed to a Hyundai dealership and had them look at it. They told me that there was no recall and that since I wasn't the original owner their powertrain warrenty was not valid. They did their diagnosis, another $300 just for them to tell me the same thing the other mechanics told me, the engine was shot and needed to be replaced. They put together a list of items that needed to be replaced and repaired and it came out to over $17,000 and Hyundai would do nothing for me. A vehicle with less than 80,000 that's engine fails is a recall in my book. It's now been over 2 years and I continue to pay for a car I cannot drive, and Hyundai still doesn't accept responsibility. This is a faulty car and would never recommend to anyone. Look at all the complaints regarding the engine and powertrain, obviously this is an issue. Hyundai needs to acknowledge this and replace these failing engines. Maybe by the time I'm done paying this car off they will take responsibility and the NHTSA will fully support the individuals that are owed a vehicle or engine replacement.

Dual clutch transmission (dct) hesitates when slowing to a stop, then accelerating. The car completely looses power and limps for a second or two until finally it engages and power finally goes to the wheels. Also, the dct clutch completely failed at 117,000 miles while traveling 65mph on the freeway, and Hyundai won't replace the clutch. Hyundai will only sell a new complete dct.

Without any warning, the vehicle suddenly shut off while driving in a very busy intersection. It was able to be started two times as we tried to get out of the way of other moving vehicles but it eventually had to be towed. There were no warning lights that appeared on the vehicle to give us any indication something was wrong. It was towed to the dealership and we were told that there was engine damage, the engine needed to be replace and that it would not be covered.

My daughter is in college in tallahassee. About 4 months ago, she told me that when she presses the accelerator, the car doesn’t go as fast as it should. In July 2022, the car was serviced in tallahassee at the dealership; however, none of this is reflected on the receipt. In November she came home to palm beach county, on her way back, she told me that she was having the same issue when she pressed the accelerator. She made it to tallahassee and I had her take it to the dealership. The service manager called me and said she had gone over the recommended miles for an oil change and this may have caused damage to the engine; however, he decided to change her oil and spark plug which coated about $318. She drove the car for a few days and noticed a loud tapping noise; also, the car rolls in all gears, and the same issue with when pressing the accelerator. Upon taking it back to the dealer, they told me that the engine would have to be replaced at a cost of $9500. The car had sat at the dealer since November 14, 2022 because no one would call back; provide updates after I started questioning the issues with other vehicles like this one based on my research. In addition, I was told the manufacturers warranty did not apply to my daughter’s car because she was the 2nd owner. I had the car towed today, November 30, 2022 to aamco. It is available if needed. This issue has put my daughter at risk because tallahassee is very hilly. The vehicle not getting enough speed to drive up a hill, pass vehicles or possibly be hit from behind puts my daughter and others at risk. The dealership has indicated there is a problem with the engine that will require it to be replaced. The vehicle was inspected by werner Hyundai in tallahassee who said there was an issue with the engine. It is now at aamco. Outside of my daughter indicating the problem, I am not aware of any other warnings.

Unknown - for the past several months, since my car hit the 70,000 mileage mark, my check engine light has come on while experiencing hard idling, delayed acceleration/power while driving - particularly on gradual inclines and hilly roads. I would suspect it has something to do with the power or fuel system. I have changed oil twice and had a diagnostic test done and mechanic is unable to pinpoint issue since it is not consistent.

Engine stalls while driving. No warning, intermitted full shut down of the engine. Can happen multiple times in a row, only making it a few hundred feet before stalling again. The only remedy is to put the car in park and start the engine again, however, that is not always easy to do when on the road, and the car can only drift and brake. It is not safe when the car stalls, especially in traffic -- can be dangerous to myself and others on the road if I am unable to pull the car over or get it to start up again on the interstate. I have been to a mechanic, and 2 dealerships who claim they cannot replicate the problem, and even when it stalled in the parking lot when I was leaving, there were no error codes on the computer. This being said, without a code or a proper diagnosis, I am at a standstill because "nothing can be done or authorized' by Hyundai without a code. I have been suggested by both dealerships to try and run it and 'kill the engine' because it is still under warranty for another 15,000 miles--but this puts myself and other drivers at risk because the car is unsafe to drive. There is a code from July 16, 2020, a little less than 2 months before I purchased the car about an engine light, this has yet to be addressed. This problem appeared out of nowhere one day while driving on the interstate and has been an issue ever since.

I've had several issues over the years with this vehicle but nothing too major but more so a nuisance. Such as the car hesitating when accelerating, light bulbs constantly burning out on the vehicle within less than a year of being replaced by myself , etc. It is now April 2022 and vehicle problems begin arising, I heard a weird noise coming from the engine (after much personal research learned this is a knocking sound). Which also happens to be the same issue from the prior year models. One day while out running errands the car just completely dies and goes into limp mode while I was turning onto a busy street (very dangerous). I drove it a very short distance back & forth to work a couple of times because thats as far as I felt going safety wise. The engine jerked forward one day but still continued to run. Then one day on my way home from work when I began slowing down to turn into a driveway. The car completely died again. It went into limp mode enough for me to creep and barely park it where I ended up having to get out & push the vehicle. It doesn't turn over or start at all now. The car gave absolutely no warnings no codes for me to turn to regarding what was going on etc. Hyundai says in order for it to be covered under the warranty that I have to provide them with information. Which I have no problem doing. However based on the research that I've done from other Hyundai Elantra owners others have had similar issues. My car is barely 4 years old & only has about 65,000 miles on it. I went with Hyundai's because I wanted something that would be safe and reliable especially because I had a child coming into the world at any moment. I ended up going with this vehicle which isn't even 5 years old & it has already become a lemon. Hyundai currently has the vehicle as I try to figure out what to do with it. Since I no longer feel safe driving it. There are no warning lamps etc that came on.

The contact owns a 2018 Hyundai Elantra. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed however, the vehicle did not drive smoothly. The contact stated that the vehicle was consuming an excessive amount of oil and fuel. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 130,000.

When taking a right turn onto a main road the car surged up to 7000rpms at at least 5mph, with no warning. Next morning taking it to work until Hyundai was opened it shifted odd and the check engine light came on. On lunch taking it to Hyundai the car would no longer reverse and needing pushed. After 3 weeks Hyundai said gear 1 and 5 was incorrect, slipping all gears. The new transmission they put in was delayed when shifting and would continue to reverse after switching from reverse to drive then hard shift forward. It is currently getting a third transmission.

The contact owns a 2018 Hyundai Elantra. The contact stated while driving from a complete stop, the accelerator pedal was depressed, but the vehicle failed to respond. The contact continuously depressed the brake pedal, and the vehicle responded significantly, causing the contact to depress the brake pedal to drive safely. The contact stated that the vehicle would shudder while responding on some occasions. The contact stated that the failure also occurred while driving at various speeds. The contact stated while driving 25 mph, the failure recurred, and the vehicle and the steering wheel were shuddering temporarily. The contact depressed the accelerator pedal, and the vehicle failed to respond. The vehicle was taken to the dealer, where it was test driven twice; however, the failure could not be duplicated. Additionally, the vehicle was taken to a local pep boys, but the failure could not be duplicated. The contact stated that the failure had been recurring while driving. The manufacturer was notified of the failure and several cases were filed. The failure mileage was approximately 38,000.

While driving my car it just stops. I have been complaining to the local dealership for 1 year and they keep turning me away. My battery was replaced and that is it. I was told I was exaggerating that this was not happening. Yesterday was different from the other times it stopped. My car stopped on a busy highway and I almost ran off the side of the rode a cliff because the wheel and brakes locked up. No one is taking this serious. As I am driving the car will just shut off. The local dealership advised me to drive even further to get it fixed. How is this safe? I was told by rich its my car I own it its not their problem.

No warning at all the engine blew apart sling oil in the road car lost all power I was turning into the drive way or about too when this happened I had to clean the road way and tow the vehical home hundyai would not help I cannot get help from hundyai dealer which told me it would be 3 months becor they could look at it or pay for it to be towed to memphis.

2018 Hyundai Elantra: the car only has 21k but the radiator hose clamp cracked and the hose burst open. The car's engine overheated causing it to be inoperable. Hyundai customer service denies any faulty/manufacturer's defect as well no reported cases with this model and make. This should further be looked into as it may cause significant distress for the owner as well as endangering lives. The incident occurred driving on a freeway under normal conditions. Hyundai refuses to accept liability, even though they are required to under their powertrain warranty, stating the vehicle must be sent to their dealership only.

When accelerating after stop car lunges and then starts to move, since bought it I have told dealership several times they say nothing wrong that how it is. Also tires have all fell apart or went flat and have wire showing on inside . I feel this is safety concern and when buying a new car tires should last longer than 1 year I should not acceleration problems either. I have some picture.

I bought the car about a month ago. And today I experienced the car while driving at 55mph when I went to accelerate to go the speed limit of 65 on the major highway going into salisbury, MD that the car wouldnt speed up. And about 30 seconds later the transmission seemed to have down shifted a couple gears due to the rpms going from 4600ish rpm down to 2000 rpms and than the car went back to normal. When I had gotten into salisbury and had to stop it braked just fine but when I started to drive again it start to feel like it was stalling and it's been doing it now for the whole day. As well as a burning smell which I'm 99% certain is the clutch. I have worked the automotive field for about 7 years. I have a dct transmissions 2018 Hyundai Elantra sport tech package. I went in the forum on facebook and some else has posted the same issues. And many other comments. I will be taking mine to the dealership after christmas is over. But I'll list screenshots below.

The aircondition internal circulation is automatically turning off after few minutes.