Vehicle Speed Control Problems of Hyundai Elantra - part 1

While it may sound bizarre, I can definitively demonstrate that whenever I am present inside a car, the car become very unstable and bouncy and unsafe to operate. Not only does it not steer straight the car also becomes incapable of coasting smoothly and is constantly racing or aggressively slowing down. I can’t be the only anomaly and whatever is causing this could be widespread and is certainly dangerous. I have found it to occur only with the cars which I am inside. I would like to demonstrate this in person if possible to an investigator.

See all problems of the 2024 Hyundai Elantra 🔎.

The contact owns a 2013 Hyundai Elantra. The contact stated that while in the process of parking the vehicle at the residence and driving 1-5 mph, the brake pedal was depressed, but the vehicle unintendedly accelerated and hit another unoccupied parked vehicle, causing the other vehicle to move 50-60 ft. Away. The rear end of the other vehicle was damaged, and the front end of the contact's vehicle was damaged. The air bags did not deployed. There was no injury sustained. The dealer was not notified of the failure. The manufacturer was notified of the failure, and a case was filed. The failure mileage was approximately 72,000.

See all problems of the 2013 Hyundai Elantra 🔎.

On [xxx] and [xxx], while driving at approximately 50 mph, my vehicle experienced a sudden and complete loss of power, presenting an immediate safety hazard. The incident unfolded as follows: without warning, the car emitted an alarming sound from the cabin. Simultaneously, a message appeared on the dashboard stating "check hybrid system" and instructing me to "pull over safely. " this was the first and only warning; there were no prior indications or symptoms of any problem before this sudden failure. Immediately upon this warning, the vehicle experienced a total loss of power. The component that failed appears to be the hybrid system itself, leading to a complete electrical system shutdown. The vehicle is currently available for inspection upon request. After safely pulling over and turning off the car, all electrical functions ceased. This included essential safety features such as hazard lights, rendering the vehicle completely inoperable and "electrically dead. " my safety and the safety of other motorists were severely put at risk due to the sudden and complete loss of propulsion and all electrical systems (including safety lights) while the vehicle was in motion. This left the vehicle vulnerable and invisible to other traffic, particularly concerning if this occurred on a highway or at night, as it creates a high risk for rear-end collisions or other accidents. I have personal video documentation of this incident, which clearly shows the dashboard warnings and the vehicle's subsequent electrical failure. I am prepared to share this video upon request. Following this alarming event, I took my vehicle to the wolfchase dealership in memphis on may 16 2025. The problem has not been reproduced or confirmed by the dealership. Despite their inspection, the dealership claimed they could not find any issue, stating that "no system of record is recording such code in the vehicle. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2022 Hyundai Elantra 🔎.

The cruise control function ceased to properly function after automatically increasing the speed to 110 mph. The vehicle is available for inspection upon request. This is a safety risk for myself and for others on the road. If another combination with this fault were to occur (either physically to the driver or to the software), this could lead to an extreme hazard due to the potential for excessive speeds. The first occurrence for this vehicle happened on 4/21/2025; however, additional instances have been reported going back at least a year for other owners of this same model. Initial issue occurred while setting cruise control from 45 mph to 35 mph and then back to 45 mph. The last instance of 45 mph is when the cruise control quickly increased the set speed to 110 mph. The set speed could not be reduced after the issue occurred. This issue is difficult to reproduce, but will always occur after the first instance until the vehicle is restarted. The vehicle has not yet been inspected by the manufacturer. This is a known issue that has occurred for more than a year now. It appears to not be addressed due to the lack of reproducibility. However, when the software issue happens, it is continually reproducible until the vehicle is restarted. No other warning lamps or erroneous events occurred at the time of the software malfunction.

See all problems of the 2023 Hyundai Elantra 🔎.

Towards the end of January, my car computer was reset because the car was telling me that I needed an oil change early and the dealership told me it could just be a computer issue. I then took my car to get an oil change and full vehicle inspection on February 24th, 2 days after that on the 26th I was leaving my school parking lot when the vehicle accelerated awkwardly when I was leaving out of a parking spot, I was then able to gain control back over the speed until the vehicle again abruptly accelerated and jerked to the left sending my car over a curb, deploying the air bag, and completely totaling out the vehicle.

Drove my 2015 Hyundai Elantra on the coldest day of the year to an appointment. Car was fully warmed up. Pulled into a gas station to park and was going less than 3 mph, making a left hand turn into the space. Elantra suddenly accelerated hard and the car hit a cement pole, causing extensive front end damage. If car had full insurance coverage, it would have been a write off. Hood crumpled, radiator damaged, front grill broken, bent the engine bar in half. Significant damage but the air bag did not deploy. Had to have it towed home 35 miles. Damage was in the middle of the front of the car, so I was already in the parking space. No warning lights of any sort before this happened. Very dangerous and I would never buy another Hyundai. I bought this car brand new in 2015 and have had recalls taken care of (anti theft software one). Over the course of owning this car, other odd things have occurred as well, such as white smoke coming out of the engine upon acceleration, accelerated wear on the tires due to the back end, and engine will suddenly stop for no reason while driving (this happened twice) inferior product!.

See all problems of the 2015 Hyundai Elantra 🔎.

Sometimes when the cruise control is turned on the car starts the cruise setting at 110mph and then starts accelerating the vehicle to that speed. It does not allow the mph setting to be turned down using the controls on the steering wheel, the only way to take it out of the stuck 110 mph setting is by turning cruise control off or braking. This situation happens rarely but does occur with only the cruise control being turned on, without any further prompt. I have a video of the occurance but the website does not allow me to upload a video.

While driving at highway speeds the vehicle will suddenly decelerate forcing vehicles behind said vehicle to make defensive maneuvers to avoid hitting our vehicle. We have taken the vehicle to the dealership twice for this condition. This time we were told it was the egr valve, but it was on backorder. We are now forced to drive this vehicle until it is repaired.

The contact called on behalf of their son who owns a 2020 Hyundai Elantra. The contact stated that while their son was decelerating, speed was unknown, and coming to a stop sign. The next thing their son was able to recall was that the vehicle had suddenly turned right crashing into an electrical pole nearby. The air bags deployed. The driver had lost consciousness during the crash making it difficult to recall all that occurred. The vehicle was towed but they had not yet received any confirmation if the vehicle had been totaled. The electrical pole had fallen and began to catch fire. The fire department had put out the fire. The contact was not completely sure of the damage done to the vehicle. The driver lost consciousness and received an injury on their right arm. Medical attention was needed. The contact could only assume a police report had been filed but had not heard from the police department to confirm. The dealer was not contacted. The manufacturer was not made aware of the failure. The failure mileage was unknown.

See all problems of the 2020 Hyundai Elantra 🔎.

Car will accelerate and get stuck in a high gear rpm gauge will not work as well you will come to a stop not knowing you are stuck in a high gear car will not downshift. I tried to cross the intersection from a stop and almost got hit because I could barely accelerate. I was stuck in 5th gear. Car will also stall while stuck in in a high gear at a stop I can turn off the vehicle and start it and it will reset the car to normal. It will drive fine for a while. Randomly this will happen. From my research I found this is a common problem with many different model years of Hyundai's . Most people say the solution is a new crankshaft sensor . When I ran a diagnostics there are no error codes for this problem. Many other individuals with this problem have said the same from many different online forums I have read. Other individuals I've said they were also stuck in the high gear at a stop and did not know until they accelerated. Some have been in accidents because of this issue. I would assume Hyundai would be aware of this. If there's not a recall on this, I believe there should be.

Unintended acceleration is happening. After about 15-30 minutes of driving, accelerating from a stopped position becomes very difficult in the sense that the vehicle does not accelerate when gas pedal is pressed. This can be extremely dangerous as you do not know when the vehicle will no longer accelerate and could get hit when crossing an intersection or turning onto any road at all. Esc warning light came on today and vehicle will no longer start but goes into auxiliary mode. This is not the first time, second, third, nor even 5th time a report on this vehicle has been made and with each report more issues are arising with seemingly no fix in sight.

See all problems of the 2021 Hyundai Elantra 🔎.

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 ,.

See all problems of the 2018 Hyundai Elantra 🔎.

The car was giving me an issue with the forward radar blocked which was coming and going as if the radar was loose. This issue persisted for a week and the error was still coming and going after every 10-15miles of drive. Later after a week the error was constant screen and the radar is still intact to the car. Error on the screen: ######forward safety system disabled. Radar blocked. #####.

Car is almost stalling randomly on the highway . The rpm’s go up and car won’t speed up slows down . Stalls very randomly I am terrified to drive it , I used to have so much confidence on a newer Hyundai .

The engine of my vehicle malfunctioned. It is available for inspection upon request, it will have to be towed. The problem put myself and others in danger as the car stopped as I was driving in the middle of a 3-lane highway in the far left lane. Others were put in danger as they had to swerve to avoid hitting me. That itself could have caused a chain collision as other vehicles in the middle lane were put in danger. I was also at risk to get rear ended as one might not notice that my speed has stopped increasing. I have already had it towed to a local Hyundai dealership and auto shop; both said it needs a new engine. Towing receipt is shown below. I had no warning lights on my dash prior to the engine failure. A battery light and check engine light appeared after I was able to safely pull to the side of the road and try to start the car again.

See all problems of the 2017 Hyundai Elantra 🔎.

This has occurred three separate times, but this report explains what happened during the most recent occurrence. I was driving at 40 mph. The car in front of me hit their brakes, so I lightly tapped my brakes to slow down. When I tapped the gas pedal, the car would not increase speed. The check engine light, oil light, and battery light each turned on simultaneously. The car then stalled completely, but the lights remained on and the car didn’t lose power. I hit the brakes (which were now hard to push down), hit my emergency flashes so that the car behind me would pass me, pulled over to the side of the road, and then I turned off the car. When I turned the car back on, 30 seconds later, all of the lights were off and the car started with no issue.

See all problems of the 2014 Hyundai Elantra 🔎.

My wife was driving down the road, traction control light came on & one of the brakes locked up and she nearly avoided an accident. I took the vehicle to a local shop & they pulled a c1283 code. I was told it was part of a recall & take it to the dealership. I took it hanania Hyundai & they told me it's not part of the recall. I have the TSB and will attach it. If my car is not part of it, I believe it should be because it describes my incident to a tee.

See all problems of the 2012 Hyundai Elantra 🔎.

Vehicle has an unintended acceleration recall and I have experienced it a few times during the past few months. Almost crashed into vehicle before me after the traffic stop.

Air bag light is on as soon as car power on until it turns off passenger airbag is off I dont know if my airbags will deploy if I get in an accident . While driving steady speed of 50-60 mph while pressing gas sometimes it doesn’t increase speed but instead jerks until I let go of the gas and then depress it again it happenes maybe 2-3 times during a drive .

See all problems of the 2009 Hyundai Elantra 🔎.

We were on our way home from the beach on [xxx]. Coming through birmingham on [xxx] in the far left (fast) lane traveling 78-80 mph with traffic flow, the car starts sounding a loud alarm with red flashing lights on the dashboard. The notification flashing said to “check hybrid system hev battery, stop safely”. The car began to power down with no acceleration. I was unable to get across to the far-right lane to pull over, we had to just squeeze in between the concrete barrier and the cars flying by. Not to mention no flashers – nothing. The car is dead. We started to google hoping someone else had this issue and posted what we could do. There was a video for this exact issue stating to push a button on the left side of the dash that would reset the battery. We did that and it began to power back on. We rode in the far-right lane for the rest of the ride home, worried it would happen again. It did. On [xxx]. , I was able to move over while it was powering down and get out of traffic. We received a notice from Hyundai around this time stating there were 3 recalls that needed to be fixed and one involved the hev battery. We assumed it would fix this issue. We got another notice about 3 additional recalls (one also involved the hev battery) and we called to get it scheduled but they were already booked out until sept. So, we scheduled that appointment for the 2nd week in sept. Fast forward a few weeks after making that appointment and after the recalls were done, it did it again 2 days in a row on my way home from work. One of these times it powered down and the only place to pull off was in a turning lane. The turning lane happened to be for oncoming traffic, but I thought I could hit the reset fast enough to be safe. It took a little longer than expected and I have many videos of this and cars were having to go around me to make their turn. I have one other I can go into more detail another way. We dropped the car at a dealership on 8/12 and have h information redacted pursuant to the freedom of information act.

Issue: manually setting cruise control to current speed (say 55mph) sets the cruise to 110mph . This has happened more than 10 times in 2 years of my ownership. This happens randomly and not possible to reproduced on-command. The dealers have refused to note this info and send it to Hyundai for investigation. Car accelerating to 110mph all of a sudden while you expect it to stay at your current speed can make one loose control of the vehicle, drive off the road if this happens near a sharp bend and potentially hitting other cars. This issue has definitely put the safety of me and other were put at risk. I believe this is a software issue and the dealers cant diagnose this on the spot. Hyundai does not seem to collect such non-reproducible complaints on their end which is really irresponsible.

When gas is pressed (even to floor) in drive, vehicle stalls, does not accelerate. Then vehicle jerks into propulsion after revving. Other instances, at deceleration the car will jerk and shake to a stop. I have mentioned the problem at every scheduled maintenance.

I was driving about 45 mph when the car just turned off the first time. I was able to put it in neutral and start it back up to get to the side of the road and it died on me again. I was about 30 feet from my destination at this point so I got it where I was going and turned it off. When I turned it back on it was making a terrible knocking/grinding noise. It didn’t have a drop of oil in it (about a thousand miles after my last oil change mind you) so I put oil in it and started it again and the sound quit. I went to drive it and it died before I could accelerate to a decent speed, got it cranked and rolling again and it slowly got up to 40 mph, but the second I started to slow down again it would die. So I had it towed to my mechanic who at first thought it was because the timing chain had a lot of slack in it, assuming it jumped time so he changed that, but it was still dying. He ended up finding the cause to be the exhaust cam sprocket? I’ve never heard of this before but I do know that ever since I bought the car 3 years ago it never felt like it would get up and go whenever I hit the gas. Since I picked it up from being fixed, this thing zoom zooms everywhere now! but it is still using an ungodly amount of oil between oil changes.

Reporting my previous VIN in case it helps the new vehicle owner since I am sure they are facing similar defects that I am with my "brand new 2016 Hyundai Elantra". I previously owned a brand new 2015 Hyundai Elantra and had to file a claim after flooding occurred in kyle, texas. The 2015 Elantra title was transferred to usaa after filing a claim for total loss due to engine flooding on October 30, 2015. Odometer reading on date of total loss is 7,673 miles. Vehicle appears to be sold again with same odometer reading January 2016. Both of my Hyundai Elantra's were purchased at ron carter Hyundai dealership in texas (dealer number p113588). This dealership is now called big star Hyundai after dcg acquisitions represented the sale in 2021 - just in time to deny and delay warranty covered defects to consumers who thought they purchased a brand new car. Hope this helps the current vehicle owner in case they are also over spending on dealership recommended "repairs" for their lemon.

The contact owns a 2024 Hyundai Elantra. The contact stated while driving 35 mph, the vehicle unintendedly decelerated to 20 mph with a message was displayed "school zone, 20 mph", however the contact was not driving in a school zone during the failure. The contact stated that occasionally while driving at various speeds, the instrument panel and the center console display went blank. The vehicle was taken to a local dealer where the vehicle was diagnosed, and the contact was advised that the failure could not be duplicated. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 10,000.

Initial report on March 7, 2022 (approx. 94k miles), second report on Dec. 12, 2023 (approx. 111,700 miles). Third report March 27, 2024: recent event occurred on March 23, 2024 (approx. 112k miles) when my vehicle suddenly stopped moving while driving 55mph on a freeway with child passenger in the vehicle, putting both of us at risk for collision. Vehicle did not have any warning lights turn on prior to or during event. The vehicle did not move again after multiple attempts to accelerate to exit freeway safely. After shifting to neutral and back to drive, the vehicle suddenly jolted and accelerated randomly while holding foot on the gas pedal (no control over timing of acceleration). We were able to exit the freeway safely. This same issue repeated multiple times while driving us to a safe area to call for a tow truck. The vehicle was towed to dealership location it was originally purchased at on March 26, 2024. Diagnostics appointment scheduled for March 28, 2024. I have completed oil change services on this car about every 1,200 miles to keep the engine running since there was no solution for any of my previous reports to dealership (even when opening a case with Hyundai), their previous determination was to close case since the diagnostics report did not show error codes in report. Previous dealership advisor made a verbal comment that the real problem is something their computers do not scan codes for, and his recommendation was to "drive it til the wheels fall off" after paying thousands in services that did not solve the root problem. Hoping this appointment will lead to a safer outcome.

See all problems of the 2016 Hyundai Elantra 🔎.

Report to NHTSA* trouble getting response from hma case manager. Delaying/not responding to multiple emails/calls/contact forms. Please advise. 1. What component or system failed or malfunctioned, and is it available for inspection upon request? - multiple systems continuing to fail/malfunction. Multiple attempts to repair at Hyundai dealerships. Vehicle is currently at the dealer service center where it was originally purchased on January 2, 2016 (dealer number p113588 , ron carter Hyundai) now big star Hyundai. Yes - please conduct VIN inspection on this vehicle. I am waiting to hear back from dealer & hma case manager to confirm vehicle specifications relating to VIN in their system and full engine inspection results. 2. How was your safety or the safety of others put at risk? - first reported and diagnostics completed by dealer December 13, 2021. Problems with engine have continued and escalated to current. Latest safety risk event occurred March 23, 2024 while driving on high traffic freeway in houston, TX with child passenger. Vehicle lost ability to control speed/driving power suddenly stopped/failed resulting in tow to dealership. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? - yes. Included notes in attached reports from previous dealer visits. Symptoms, reporting & attempts to repair started within warranty window. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? - previous inspection reports attached. 5. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? - cel was on and off at the start of symptoms Dec. 2021. Dealer replaced map sensors and the issues continued without warning lamps. Dealer stated they could not diagnose anything without warning lamps. Dealer reported unknown diagnosis and closed case.

The contact owns a 2015 Hyundai Elantra. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to respond as intended. Additionally, the vehicle jerked and hesitated. The contact stated that an unknown warning light illuminated with a message not to drive the vehicle until the vehicle was serviced. The vehicle was taken to an independent mechanic where it was diagnosed with a failed transmission and that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.

On December 28th I was parking in my parking spot outside my house, went to pull up 3 more inches in my parking spot when the vehicle accelerated at an extremely rapid speed, went over the high curb, up my front lawn into the tree in my front yard. It was a battle between the brake and the gas acceleration event. Then I put it gently in reverse, my car fled rapidly down into the parking lot at such a high rate of speed, I turned the wheel, my car hit 3 cars across the parking lot, shot across the parking lot, popped over that curb, went down an extremely steep hill, hit the cross street, went still in reverse over an island, wiped out two signs and crashed into a car in the middle of the 4 way stop and stopped. My insurance is blaming it on driver error like they are blaming thousands of drivers over the same experience, stating that I mistook the gas pedal instead of the brake and also stating that I did not attempt to brake, that is so far from the truth, you can look at the track marks on the ground and tell I was standing on the brake. What is being done about these awful scenerios. My car is currently in copart being assessed. My car was serviced at the Hyundai dealership ever since I purchased it, all the records are there and in my possession, I had low mileage, less than 48,000 miles and planned on holding onto the vehicle for at least 6 more years. Now my car is sabotaged, being blamed like 1,000 of other drivers over the car malfunctioning. There is a sensor for the throttle, a sensor for the gas accelerator that the computer control unit brain waits for the analytical data from both sensors and adds additional throttle to the situation. Once the car is turned off the entire system resets itself, so there is no evidence of high throttle, gas accelerators sticking and the driver is blamed. Since the insurance companies have insured these vehicles there is a lot at stake for these cases to be proven and for the Hyundai manufacturer as well.

My car is only at 46000 miles. Sincei'm purchase from dealer it has given me the same issues of rpms shooting up &speedometer going out of control the car wont go past 20mph & jerks back & forth, tyrning off while driving & has had a b"bad" drive since purchase. I dont know the issue and its never been fixed by dealer even though I took it in a few times for these issues. It now foing it again. My life is in danger with this care since purchase & Hyundai shouldve replaced my car or engine but they do not care. This car is a lemon. And now the car can go on fire parked or driving? what can be done. . On the nextvpart of complaint im putting down ladt week sice this is the newest incident of the desc.

My vehicle keeps shutting down while I’m driving. It happened 5 times in the past week and twice today. It happens when I’m driving slow to make a turn or after the car has been stopped for a while (I. G. Stop light and drive through window). Three out of five times were in areas where I could safely restart my car. The other two were in the middle of a busy expressway while making a turn and passing through a busy intersection. I was almost hit from behind. The car that swerved to avoid hitting me was also nearly hit by a vehicle in the other lane. I’ve done research and several other people had this issue but there’s no recall on my car. I don’t know if it’s a battery issue or electrical wiring, etc. , but it is terrifying. Each time it happens my vehicle makes a strange rattling nose and I can’t quite tell where it’s coming from. The car also shakes for a while afterwards.

When I drive my car shuts off in the middle of driving in traffic I almost got into an accident with my kids in the car the dealership doesn’t know what’s the problem they fixed a code of p0011 can anybody help because it’s a safety hazard with me and my family in the car please help feel like I’m just wasting money.

Engine seized while going 55-60mph with warning lights only 15 seconds before my vehicle completely stopped on the highway (route 18 east brunswick, NJ) the engine was replaced by Hyundai along with the manifold and catalytic converter. Vehicle lost all control and power and started excessively knocking while I tried to get to the shoulder but only made it to the right lane. The safety of others and myself were out at risk due to no control of the vehicle. Repair order attached.

What component or system failed or malfunctioned, and is it available for inspection upon request? available for inspection upon request. Please do! loss of power. Reported same issues a year ago. Brought to dealership, sold on other services that did not solve problem. Opened a case with Hyundai. No solution. How was your safety or the safety of others put at risk? random loss of power. Hyundai rep stated it’s a problem their systems do not actually scan for so it’s common this won’t appear in inspection reports. Has the problem been reproduced or confirmed by a dealer or independent service center? dealer rep drove my car and mentioned he noticed it tries to accelerate when idle, but without a code he can’t do anything about it. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? a Hyundai dealership inspection was completed. Suggestion I buy a new engine. I declined since the multiple repairs paid for already were supposed to fix the problem, but they didn’t. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? no warning lights for anything in over a year but I am still dealing with same loss of power and acceleration control issues.

The piston rings do not seal leading to increased oil consumption and very low oil. My safety was put at risk because when I pulled out into traffic that was going at a high speed I could not accelerate. There was no warning or indication that this was going on prior to this incident. Yes this has been confirmed by a Hyundai dealership and the component was inspected. There was no warning sign before this incident.