Electrical System Problems of Hyundai Elantra - part 1

I own a Hyundai Elantra with approximately 103,000 miles. The vehicle has developed an intermittent issue where the engine will suddenly stall while driving. This most often occurs when I am decelerating and turning, such as when entering or navigating roundabouts. At the time of the stall, multiple warning indicators appear simultaneously, including the check engine light, battery warning light, and a “no key detected” message. There are no prior warning signs before the failure occurs—no unusual noises, no loss of power leading up to the event, and no dashboard warnings in advance. The stall is sudden and unexpected. When the vehicle stalls, I must quickly shift into park and restart the engine. The car restarts immediately without hesitation, and all warning lights disappear. The vehicle then operates normally again until the issue randomly reoccurs. This has happened multiple times. This issue creates a safety risk because the vehicle loses power unexpectedly while in motion, particularly during low-speed turns and in roundabouts, which could increase the risk of a collision due to sudden loss of propulsion and reduced control. The problem has not yet been formally diagnosed by a dealer or independent repair shop, but based on research and similar reported cases, it may be related to an intermittent engine or electrical signal failure. The issue has not yet been inspected by the manufacturer, police, or insurance representatives. Unknown as to the exact failed component, but the failure appears to involve a sudden loss of engine operation without warning, followed by immediate recovery upon restart.

See all problems of the 2017 Hyundai Elantra 🔎.

My mother's vehicle caught fire while in park and it’s listed under a fire-risk recall. Another car got damage with the fire. I want to open a claim.

See all problems of the 2013 Hyundai Elantra 🔎.

Within a matter of a few days my car has been stopping by itself. The car was smoking and stopping in the middle of the highway, my dealership is proving me with a new engine but is trying to have me come out of pocket for an fuel injector, please help !.

See all problems of the 2020 Hyundai Elantra 🔎.

I am writing to formally report a safety concern regarding my 2018 Hyundai Elantra. The vehicle has experienced a failure of the heater hose/pipe, which appears to be made of plastic and connected to a metal component. This failure has resulted in a coolant leak, creating a serious risk of engine overheating. This issue is not only inconvenient but also dangerous. A sudden loss of coolant while driving can cause the engine to overheat without warning, potentially leading to engine failure, loss of vehicle control, or leaving the driver stranded in unsafe conditions. This is especially concerning while driving on busy roads or highways. Based on my experience and discussions with repair professionals, this appears to be a known issue with this model, as the part is not widely available outside of Hyundai/kia and may indicate a design flaw. A critical cooling system component should not fail prematurely under normal driving conditions. Given the safety risks associated with this defect, I believe this issue warrants further investigation and consideration for a recall or extended warranty coverage. Consumers should not be responsible for costly repairs caused by a potentially defective design. I respectfully request that Hyundai review this issue and provide assistance with the repair, as well as take appropriate action to ensure the safety and reliability of affected vehicles. Sincerely, [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2018 Hyundai Elantra 🔎.

The horn on my vehicle all of a sudden does not work. Im afraid that I'll be in a accident because im unable to blow it. Plenty times ive almost been in a accident & it was literally nothing I could do because my horn isnt working. Secondly, something is going in with the suspension on the right side of my car. Too much rattling noise. I see in the complaints im not the only one having this issue. Third but not least, the ac isnt working. Blowing out hot air. Ive also seen where alot of people is complaining about that ive had this car only a year and it has too many recall issues.

See all problems of the 2022 Hyundai Elantra 🔎.

My vehicle has been in the shop here at mcgrath Hyundai in chicago, IL 30+ times since I bought it 5/21. Electrical, (rear), 6 horns, 6 blower motors, multiple warranty and recalls and now my front driver seat belt. They’re refusing to fix it even though I have reported it before. They’re saying over 60,000 miles makes it no longer under warranty. I reported it before and they said that it was okay. It was not okay and still isn’t okay and they think I’m going to pay $1500 to get it fixed now as well as re wiring the back of the vehicle for $600, which I have been reporting issues with for years.

See all problems of the 2021 Hyundai Elantra 🔎.

There was a recall electronic power steering (eps) motor connector that was being done for 2017 Hyundai Elantras and my car is affected by it. Hyundai is saying my car is not affected by the recall that they put out for this issue.

Nhtsa 20v-061 (Hyundai 188): abs/hecu module NHTSA 15v-100 (Hyundai 127): electric power steering (eps) NHTSA 13v-113 (Hyundai 110): brake light switch.

See all problems of the 2009 Hyundai Elantra 🔎.

Electrical component with car has been malfunctioning. Adas system malfunctioning (all the lights on the dash have been coming on in and out at different times) despite turning the car on and off. Video and picture evidence has been collected on different days and times this issue has been happening. Blinkers do not work when this is happening. Concerned for safety while driving. Hyundai dealership is not helping and blowing me off.

See all problems of the 2023 Hyundai Elantra 🔎.

[xxx] is subject to safety recall 20v-755 Hyundai recall 251 for a defective abs module that may leak brake fluid, cause an electrical short, and increase the risk of an engine compartment fire. The recall remains open and has not been performed. On Feb 2, I brought the vehicle to mcgovern Hyundai of arlington and disclosed an active brake fluid leak consistent with recall 251. I also stated that brakes were recently replaced 4 weeks ago. The service advisor incorrectly said the recall was just for a fuse and unrelated to brake fluid. The dealership drove the car for a state inspection despite knowing about the leak and open recall. They stated the brakes are bad and requested payment for a diagnostic, which I declined. No diagnostic testing was performed. The dealership informed me the required abs module part was unavailable and instructed me to return Friday, waiting 3 5 business days. The recall repair was not completed, and no towing or alternate transportation was offered. The dealership invoice documents the incomplete repair. I live in east boston, MA, a densely populated urban area with street parking. If the defect causes a fire, it could endanger nearby vehicles, residences, and public safety. I am filing this complaint to document the unprepared safety defect, dealership misinformation, and ongoing community fire risk. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

No accident has occurred as of yet (for my case). Ongoing issues with Hyundai left brake bulb and center brake bulb burning out due to over-amperage. These two are on their own 10a circuit separate from the 5a circuit for the right brakelight bulb. It appears that these two bulbs are possibly receiving 15a and therefore burning out prematurely (3 months or less). I recently replaced these two bulbs at the same time, and now my battery is shorted. To keep my battery charged, I need to pull my 15a brake lamp fuse while the car is parked. This has now caused my abs light to come on, as that system relies on the signal from the 15a brake lamp circuit. I suspect that some 15a components (10a+5a) received 20a (15a+5a) and welded shut. I am still looking for it to trace it down, resources are limited and I'm intent on just buying the $35 diagnostics book. Hyundai dealership did not inform me that this fuse was pulled while I drove home from the shop yesterday, creating an unsafe condition. They quoted me $500 to replace a brake lamp relay and the abs (I'm assuming the whole abs, but maybe just the control module), I declined. My plan for now, as this car isn't driven much, is to trace it down and find the shorted component. From my research, this is clearly affecting many years of Hyundais and kias, not just my Elantra and not just my year. In fact, it's so common that there are facebook groups (such as this one [xxx] ) dedicated to helping owners remedy this defect. I think a recall service, and a full investigation of what is electrically wrong with these cars, and what the actual remedy should be, is necessary based on the amount of cars that could be impacted. Hyundai & kia technicians I am sure are intimately knowledgeable about this issue by now and us owners are on the hook, having only 80,000 miles of warranty on anything purchased used. Please reach out with any add'l questions. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2016 Hyundai Elantra 🔎.

1: driver’s window: don't go up or down, it doesn't respond to control. 2: headlight warning lights is on all the time because bulbs are burn out so soon after replacement .

Vehicle: 2022 Hyundai n line mileage at initial incident: ~17,000 miles components involved: engine and engine cooling; exhaust system / emissions; air bags (srs) I am submitting this complaint to document unresolved emissions system and supplemental restraint system (srs) safety concerns involving my 2022 Hyundai n line, as well as the manufacturer’s refusal to ensure proper diagnosis and corrective action following a documented dealer service error and subsequent warranty repair. At approximately 17,000 miles, a Hyundai-authorized dealership failed to reinstall an engine oil seal during a routine oil change. This error caused rapid engine oil loss at highway speed, activation of the oil warning system, and oil discharge onto the roadway. The incident is documented in Hyundai service records and is not disputed. Sudden oil-loss events of this nature are known to cause latent or progressive damage to internal engine components and federally regulated emissions systems, even when immediate engine failure does not occur. Despite proper maintenance after this incident, the vehicle subsequently set dtc p0420 (catalyst system efficiency below threshold – bank 1) at a mileage far below expected durability. Hyundai replaced the catalytic converter under warranty. I requested diagnostic data, inspection findings, and documentation supporting the repair, but the dealership refused to provide anything beyond a basic repair invoice. Immediately following this Hyundai-authorized warranty repair, the vehicle developed a new drivability defect, specifically hesitation during acceleration, which was not present prior to the catalytic converter replacement. This indicates a post-repair nonconformity and raises concern that emissions-related components may not have been fully repaired or that additional systems were affected during the warranty repair process. When I returned the vehicle for evaluation, the dealership stated that it would not diagnose the vehicle unless an acti.

Horn is inoperable due to internal fault. Horn receives power when button is depressed, relay actuates, but horn does not sound. There is no warning system in place for this fault.

This is the 7th time my vehicle has been parked and over night killed a battery. It’s been replaced 3 times and this battery lasted 8 months and now my vehicle is dead again. Also you can’t lock your vehicle if the battery is completely dead.

What component or system failed or malfunctioned, and is it available for inspection upon request? the car began stalling and started to become unresponsive while I was driving to work. While I was not 100% sure of what component was malfunctioning at the time, I suspected that it might be a timing chain problem because I had this same exact issue happen to to this car back in January 2025. I did not expect this issue to occur again because at the time of the previous problem, the dealership confirmed that issue was the timing chain and the vvt system, and replaced those components with new parts. How was your safety or the safety of others put at risk? the car started stalling and sputtering, then became unresponsive while I was driving. If I were in a high-traffic area, I'm not confident that I would have been able to accelerate, stop, or safely pull over to the side of the road without putting myself and/or someone else in harms way. Has the problem been reproduced or confirmed by a dealer or independent service center? yes, the car is currently at the dealership and they confirmed that the issue is the timing chain and the vvt system. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? yes, the car is currently at the dealership and they confirmed that the issue is the timing chain and the vvt system. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? no, there were absolutely no warning lights, messages, or symptoms prior to the failure.

The contact owns a 2012 Hyundai Elantra. The contact stated that while driving at an undisclosed speed, the instrument panel became inoperable and failed to operate as needed. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and a complaint was filed. The failure mileage was approximately 66,000.

See all problems of the 2012 Hyundai Elantra 🔎.

Driver side wheel baron was scrubbing together and brake fluid was leaking I lost speed can't go over 35 miles on the speedometer my airbag light is on on the dashboard, abs, the car with 2 lines and tire along with engine sign is on I look up for recall and it listed everything my 2012 Hyundai Elantra is doing I took it to Hyundai dealership in orlando florida on west colonial drive and 2 hours they called said it was ready they didn't do anything all the the same lights still on on the dashboard still leaking brake fluid and wheel baron and my brakes still scrubbing against each other speed reduction they claim they did the recall would not look at it again said they did it nothing changed I'm taking a risk of fire starting from brake fluid hitting the electrical box and wheel coming of and again all the lights on the dashboard is still on my name email address and everything is wrong on the paperwork except my phone number and I gave him my license with my information on it I'm asking the advisor how can he tell me that the work was done and recall doesn't necessary fix the problem but he knew my car remember everything that's impossible I told him why the lights still on and nothing changed also I asked him how do he know it's repaired he showed me no parts came off my car to say it was replaced nothing was replaced.

The car was being driven nomore than 1hr. It began to smoke under the hood. The abs emergency brake light, check engine then the eps lights were on. The vehicle was pulled over and stopped. Fire was then observed falling from under the car. The hood was then popped to see the engine mainly on the driver side was totally catching fire. Then it spread. The engine needle never showed over heated. The car took no more than 6 minutes to catch fire from the time it started smoking. It was very scary.

See all problems of the 2008 Hyundai Elantra 🔎.

I didn't know the horn wasn't working. I was driving and a vehicle almost backed into me on the drivers door. I couldn't warn them that I was behind them I was fortunate to move before they backed into me. I haven't taken the car to the dealer. I searched on the internet to see if this was an isolated incident and I found hundreds of incidents of people reporting faulty horns on Hyundai vehicles. This should be a safety and a recall issue/.

Daytime and night time running lights turn off and on randomly with brights engaging random as well. Turn signals not operating but intermittently and wipers not turning on intermittently. This started in Nov 2025. First time dealership could get it in was Jan 2026, stated multifunction switch was bad and covered under warranty, now not covered after getting it in 3. 5 months later. Due to the this being a known safety concern for Hyundai genesis with extended warranty put in place, would love a review on Elantra as well because there are several spots in threads stating the same issue. Thank you for your time and consideration.

While driving, pressing the accelerator pedal, the vehicle hesitated and stalled. No warning lights came on until after I attempted to turn the vehicle back on then the check engine light and low oil light were illuminated. My vehicle was towed to a local mechanic and I was informed that the engine was blown and to tow my car to a Hyundai dealership as I was still under the 10 year/100k mile warranty. After getting my car to Hyundai, I was told I had to get a combustion cleaning for $800 whether the cleaning worked or not before any warranty work could be completed. The cleaning did not work and it was then found that a pin was sheared off inside the engine. My engine was then replaced under warranty but I still had to pay for the cleaning. A second mechanic looked over my paperwork after getting my car back 2 months later and noted that the engine failure could have been diagnosed without the cleaning as the cleaning would not have affected where the pin was sheared off. My 2017 Elantra had 90,315 at the time of this incident.

Hat component or system failed or malfunctioned, and is it available for inspection upon request? the amplifier how was your safety or the safety of others put at risk? the amp controls the noises for blind spot sensors, rear cross traffic alerts and all the sound in the vehicle. Has the problem been reproduced or confirmed by a dealer or independent service center? yes has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? it has been inspected by the dealership at germain Hyundai of columbus and is currently being repaired. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? no. The sound just went out without warning.

See all problems of the 2024 Hyundai Elantra 🔎.

Low pressure oil light did not come on until the oil drain plug had completely fallen out. Once the light came on, the vehicle was slowed and came to a stop on the side of the highway within 2 minutes. The car completely shut off as if the battery were dead. It had to be jumped in order to put the car into neutral for the tow truck. The safety issue is that the hwy we were traveling on is 70mph. At no time, did we receive a warning until it was almost too late. The car is currently at an auto repair shop as the engine is most likely catastrophic and due to the car having no power, they want to replace not only the engine but also the 12 volt battery and it's module. The low pressure oil warning should have come on way before the plug completely fell out and the battery should not be dead. The mechanics can't even fathom why an engine would fail quickly and drain the battery as well.

The vehicle has less than 2,000 miles on it being a 2024 model (hybrid limited) and on more than 2 occasions without warning the car will be dead while parked. No accessories left plugged in to cause drainage, no warning from the myhyundai bluelink app, and the dealers are completely clueless. The vehicle gets driven every day, and in order to "fix" the issue temporarily, I have to unlock the car manually using the physical key, and press the 12v reset button. That wont last long before the backup battery dies too.

The eps light started coming on intermittently back in Nov. 2025 and power steering became very difficult. I could get it to reset by turning off the car and turning steering wheel all the way to right and then left and then back to center and restart. The steering ability returned but the light eventually came back on. I had firestone look at this in Nov. And they recalibrated but advised if problem returned that I should contact dealer due to recall for 2010 Elantras for same issue. The light came back on this weekend. I note the recall is for Elantras manufactured through April 30, 2010. My car was manufactured June 20, 2010…. 6 weeks after the dates of the recalled models. Clearly this issue is affecting my car also. I plan to call the dealer and try to get them to look at it and see if they will repair under the recall… but I wanted to report this to you also since is affecting models outside the original recall dates.

See all problems of the 2010 Hyundai Elantra 🔎.

Driver side lock cannot be opened. Defect.

See all problems of the 2019 Hyundai Elantra 🔎.

We were heading back to ohio at mile marker 8 75n kentucky when we heard a boom. Then we saw smoke as my husband was pulling over. We jump out to get our child out of the car seat and at the same time a pickup truck pulls up with two guys. They yell that our cars on fire and began putting the fire out with a fire extinguisher. We had an oil change before we left ohio by valvoline. This area of the hwy isn't really patrolled and only has a volunteer fire department. A constable just happened to pass by us on the way to indiana.

My fuel pump comes up and my check engine light saying that it needs to be replaced when I fill up my car it automatically resets my mileage for aaa and trippy and it will tell me that I have no gas even though I just filled up or it will say I’m full when I know I’m empty so it’s not reliable. It comes and goes. And then for an electrical issue my car will randomly stop working and then like come back up and it was underneath the positive plug. There is a clip that someone had to extend because it was too short and causing electrical surges so it’s still a problem if I go over a bump it gets loose so that clip under the positive terminal I believe is loose and makes my car shut off in the middle of driving at once and then it came right back on.

Where the Hyundai place tell that I don't need drive that because recall on the light shower! on my car and how electric part in the car. I still a note the balance 14,700. The paying balance need be 9,900. Because the wiring and light show balance I would owe. 6,000.

Vehicle information: 2014 Hyundai Elantra se sedan, 4-cylinder, 6-speed automatic, fwd build location: USA-built version (montgomery, al - VIN '5np') ownership: second owner, purchased certified pre-owned (cpo) from the Hyundai of new port richey dealer (florida) in March 2016. Vehicle is owned outright. Mileage: 128,638 approximate date incident noticed: October 1, 2025 description of critical safety defect & warranty rejection I am reporting a failure of the clock spring assembly, which compromises critical safety features and poses an unreasonable risk, especially since this vehicle regularly transports passengers, including children. My VIN was rejected by the Hyundai txxa clock spring extended warranty validator despite exhibiting the exact failures covered by the campaign. Safety failures: airbag (srs): warning light is constantly illuminated; driver-side airbag is disabled and will not deploy, endangering the driver and front passenger. Horn: completely inoperable, eliminating a vital safety communication feature required to warn other drivers. Cruise control: buttons on the steering wheel are non-functional. These failures are caused by a broken electrical connection within the clock spring (which typically runs the airbag, horn, and cruise control circuits). I believe the denial is related to my vehicle being the USA-built version (VIN '5np'). I request that NHTSA investigate why this safety campaign arbitrarily excludes USA-built Elantras (but not korean-built) experiencing the identical failure, thereby placing an unreasonable repair cost burden on owners for a critical safety component.

See all problems of the 2014 Hyundai Elantra 🔎.

Electric horn is not working horn issue technical service bulletin (TSB) 25-be-005h published on Hyundai tech info under Hyundaidealer. Com but it does not include 2019; it includes 2020 -2022 model years.

During the incident, there was an aggressive flow of smoke coming from behind the steering wheel within the dashboard indicating overheating and/or a fire. My vehicle was inspected by my local dealer, ed voyles Hyundai, who stated that their inspection found a burning left rear tail light assembly with fluid inside of it. No warning lamps or prompts appeared during the incident.

I've replaced the headlights 4 times and the daytime running lights 20 times! bought and installed 2 entire headlight assemblies. . . 5 days later right headlight blew out. Ive entered many complaints about this 1 vehicle and conveniently for Hyundai no recalls!!!! continuous oil level issue reported the very first time I put the car in the shop.

The contact owns a 2020 Hyundai Elantra. The contact stated that while his son was driving at an undisclosed speed, the lane assist safety feature failed to function as intended. The messages “forward collision avoidance”, and “lane assist camera disabled” were displayed. The vehicle was taken to a local dealer, where it was diagnosed, and determined that the forward collision avoidance and lane assist camera needed to be replaced. The vehicle was not repaired because the warranty was invalid. The manufacturer was made aware of the failure. The failure mileage was approximately 110,000.