Electrical System Problems of Hyundai Elantra - part 2

This seems to be a very common and serious issue with Hyundai vehicles. 2013 Hyundai elanta, believed to be a frequent crankshaft position sensor issue. When driving the car, they vehicle will feel that it is losing power. When coming to a stop the engine will idle so low that it feels like it will stall or it does stall. The tachometer registered zero rpm's, even when accellearting. Attempting to accelerate up any incline and the car can not provide enough power. Sometimes the car will crank up, other times it will require time to restart. The car has stalled and low power idling multiple times, but it did happen in the middle of a 4 way intersection twice, and when the issue is present. Although we've been fortunate, no accidents have occurred, it is very unsafe for the owner and other drivers. This occurance has happended several times over the past year. Two times it was immediatley brought into the dealer service, the second time it did stall with the service member there. Both times they were unable to diagnose the problem and stated no error codes were reported. You have already issued a recall for this same issue with a different model. Oct. 13, 2017 – Hyundai motor America has recalled more than 400 vehicles potentially equipped with defective crankshaft assemblies, according to documentation submitted to the national transportation safety administration. There are so many others that have reported this same issue and have been corrected with the replacement of the crankshaft position sensor. . Read more...

See all problems of the 2013 Hyundai Elantra 🔎.

Headlight housing mechanism for high beam and low beam lights do not allow headlights to stay on high beam. Will not pass massachusetts motor vehicle safety inspection.

See all problems of the 2019 Hyundai Elantra 🔎.

My auto has a problem with the brake light on the drivers side not working at some times. The issue seems to happen almost every 6 months or so. The first time it stopped working, I took my auto to the dealership where I purchased it from costing me about $65. 00, the second time 6 months later the brake light went out again. The bulb was replaced by the dealership at no charge, I was told that the bulb was put in wrong. The brake light is now out again. I noticed that it may come on but when I press the brake pedal and release the emergency brake, it goes out and stays out until I shut the auto off for a long period of time. Often it will be on when I'm driving and then it goes out.

See all problems of the 2017 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 🔎.

I started to see the oil light on the dashboard and I heard a hard sound from the engine so that I changed the oil then after a couple days I saw the light again on with a little bit high temperature, so stooped by a gas station and I added some more oil after I shut the car off and waited to cool the engine down and I started the car, the oil light was gone and the engine sound was smoother then I started to get the same issue every couple days and I used to fix it the same way and I've had the same experience with my previous car which was the same brand but different year band model which I found a recall on the engine after it blown and the agency or the manufacturer changed the engine for free for that car and the current car has the same issues and it's included in the year range for that recall which from 2012 to 2019, that scares me because I drive everyday for rideshare and that can be dangerous for me and my clients who ride with me, also some of them stopped calling me for rides once they knew about that issue. And today I noticed the car beep which I used to hear when I lock the car with the remote has stopped too.

See all problems of the 2014 Hyundai Elantra 🔎.

The horn has failed four times on my vehicle, and I have owned and maintained it since November 2022. While Hyundai has replaced it under warranty at no charge, I foresee this being a continuing issue.

See all problems of the 2023 Hyundai Elantra 🔎.

My vehicle was towed to manly Hyundai in santa rosa CA June 18,2025. The vehicle when driving steered all over the lane then locked up on me almost causing a crash. The dealership says it’s the electrical column assembly. My vehicle is a 2017 Hyundai Elantra but don’t see any recall on it and I am being charged $3400. 00. The red steering wheel light went on . I’m looking for a recall on this vehicle seems many others have had the same issue. I do not have any receipts yet since it was towed and parts are being ordered and work will start this week. As soon as I have paperwork I can forward it to you. Thanks for your help in advance. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

This is a repeat incident. While driving, the speedometer stops working, tachometer, all of the collision warning systems start going through a self test, the check engine light comes on, and most concerning is the power steering. It becomes heavy, as if it is working at half power. The dealer kept the car for over a week recently, and they said that they were unable to duplicate the issue. It happened again while I was on a road trip , and I stopped by five star Hyundai in albany GA. The service advisor was aware of similar issues have occurred on Hyundai's, but that they were too busy to look at it. She wouldn't even come out of the building to look at the car and wasn't interested in looking at my video. I tried to upload video to this form, but was unable to do so.

See all problems of the 2024 Hyundai Elantra 🔎.

Rear camera suddenly stopped working while reversing. Happened approximately at 19,000 miles. Don't know the cause but seems like a safety issue since rear view cameras are federally mandated. The usual camera view is now replaced by green error screen that says "no signal received. Please try again later".

The issue involves the hybrid electric powertrain or electrical control system in my 2023 Hyundai Elantra limited hybrid. The vehicle has shut off multiple times while driving, with complete loss of power and propulsion. This poses a serious safety risk, as it happens without warning in the middle of the road. Restarting the car requires shifting into park and trying multiple times to turn it off, but the vacuole turns back on the first try. I have experienced this issue several times, including twice during a 300-mile highway trip. After each shutdown, the dashboard displays multiple warning lights, including the check engine light, battery light, oil pressure light, and hybrid system warning (orange car icon). I took a photo immediately after the most recent failure to document these warnings. The vehicle has been inspected three times by two different Hyundai dealerships. Both confirmed the vehicle is under warranty but have not repaired or diagnosed the issue, citing that they cannot replicate it. They have driven it ~200 miles without success. However, they have not pulled ecu data or freeze-frame codes, even though warning lights were active at the time of failure. There are no symptoms or warning messages before the failure — the vehicle shuts off suddenly. The car is available for inspection, and I am in the process of opening a formal case with Hyundai. This is a significant and recurring safety hazard that must be addressed. This issue has an occurred a various speeds including during acceleration and braking. The picture attached is the dashboard after the I indent has occurred and have shifted to park after stopping to try and restart the car to get out of the middle of the road.

Constant misfire issue causes vehicle fo completely bog down while driving. .

I own a 2010 Hyundai Elantra that has experienced a sudden loss of power steering assist on multiple occasions. When this happens, the steering wheel becomes very difficult to turn, especially when maneuvering at low speeds or parking. The eps light comes on and stays illuminated. This creates a serious safety hazard, particularly when driving with children or in traffic. I am aware of Hyundai recall 127 (NHTSA campaign 15v100000), which addresses the same issue, but my VIN is not included. I am requesting that Hyundai investigate and provide the same repair remedy for vehicles outside the initial recall VIN range that are experiencing identical failures.

See all problems of the 2010 Hyundai Elantra 🔎.

Cluster screen was black. Lasted for 30 minutes the initial time. Happened again, lasted for 3 days before turning back on. No turn signal sound when using turn signals. No speedometer or any of the main screen shows. No blind spot indicator lights or sounds either. No engine lights or any other lights visible before this occures. Safety was absolutely at risk. Couldn't even tell the speed I was going .

Car stop working once I got home I notice while I was driving the car kept back firing and jurking while driving . Had a mechanic look at the car he tried to start it but it started and shut off. . He even tried to jump start the car with the jumping cables but it will not start. . He told me it was electrical. . I have a brand new battery and a complete tune up on the car. . I have not been able to drive the car in 3 weeks.

See all problems of the 2011 Hyundai Elantra 🔎.

1- horn. 2- was not able to warn other driver of improper lane change. Was not able to warn driver backing out of parking space almost causing accident. 3- yes, by dealer. 4- yes, by dealer. 5-no warning. Horn just stops working. Appeared at first 5k miles. Note: this is a common complaint in Hyundai forums for many years.

Abs and traction control lights on as well as e brake light this is all after I had recall work that was supposed to fix this problem but only made it worse I am dealing with Hyundai but I don’t see a solution for this problem my car is inoperable and very unsafe it is my main source of transportation to and from my place of work and without this vehicle I am at a great loss I have lost brakes completely at times and am mentally and physically unable to drive this car it’s that bad financially strapped from sinking money into this problem only to find there’s a recall but the recall work didn’t fix the problem and Hyundai knows it won’t fix the problem.

See all problems of the 2015 Hyundai Elantra 🔎.

Driving on interstate at 70mph. Multiple, five or six, warnings pop up in rapid succession mostly dealing with the safety features such as distance to car in front, adaptive speed control, lane keeping. The last one was hybrid system - safely stop. The car then immediately lost all acceleration power leaving us coasting. This all happened within a few seconds. Terrifying. Luckily we had space to get over quickly. 30 miles sooner we would have been in downtown jacksonville with no place to maneuver. Extremely dangerous. A few seconds warning then nothing. Turned the vehicle off as soon as we stopped and car was completely dead, no electrical power to anything, including flashers. Not sure how you can’t have flashers on a hybrid. Basically no warning to no power at highway speeds and then no flashers. Something is seriously wrong with this.

A significant class action settlement, known as the Hyundai engine ii class action settlement, was established to address allegations of engine defects in various Hyundai models. This settlement includes vehicles equipped with the nu 2. 0-liter gdi engine, such as the 2014–2020 Elantra gt. The lawsuit claimed that these engines could suffer from issues like engine seizure, stalling, and potential engine fires. My vehicles engine is the engine listed above and has been experiencing those exact problems. My engine has been stalling and making a knocking noise. A professional mechanic evaluated my vehicle and diagnosed it with first stage engine failure. Engine failure of any kind while driving is extremely dangerous and could lead to sudden stopping on a highway, collision, and result in the loss of life of both the driver and other drivers sharing the road. In addition to the engine ii settlement, there was a separate class action settlement related to the theta ii engines, which are also found in some Hyundai vehicles. This settlement addressed allegations of engine defects that could lead to engine failure. Hyundai motors is refusing to honor their warranty coverage for my vehicle. They claim their refusal is due to my vehicle having a rebuilt title, however, nowhere on their website or per any other guidelines do they explicitly deny coverage for rebuilt title vehicles. They clearly state that only salvage titles and 'total loss' vehicles will not receive any warranty assistance, which my vehicle was never considered a total loss. Additionally, when speaking to a bob howard Hyundai representative, they informed me that they have previously honored warranties for people in my exact situation. The engine in my 2014 Hyundai Elantra gt is the original engine with a matching VIN number and the engine failure is strictly due to the malfunction of said part produced by Hyundai motors. I have maintained and preformed regular maintenance on this vehicle with receipts.

While driving in a parking lot. The car wouldn't accelerate. Kept pressing on the gas pedal but the car wouldn't move. After about 5 seconds the car shut down. I had to place the car on p then press the start button, pressed the brake pedal and then the start button again and the car turned back on.

Initial fault code: p0303 replaced all 4 spark plugs and all 4 ignition coils. The check engine light extinguished momentarily but returned, logging p0303 and a new p0301 replaced all 4 fuel injectors. Cel extinguished momentarily and then returned, logging p0303. Replaced the entire engine electrical harness. Concurrently, all related electrical components and connectors were meticulously cleaned with professional contact cleaner. Cel extinguished for significantly longer period of time, and then returned, re-logging p0303 and p0301. Thid suggested the ecu was "handshaking" with new components but re-logging the fault upon detecting the persistent core issue. A full compression test was performed. All cylinders reported results within specification. Using a borescope I inspected cylinder walls in piston tops. There was significant carbon residue buildup but nothing out of the ordinary for similar gdi engines. I still performed a pea gdi specific chemical cleaning. It was a a little smoother afterwards, but the misfire persisted and cel remained on. I also removed, cleaned, and tested common sensor faults, with no result. Also p0128 code and no start / electrical drain, and engine light started flashing numerous occasions had to stop the vehicle. I tried swapping the coils, but all that proved was that the coil was good, I did a power and ground test, it passed the connector had 12 plus volt power and a perfect resistance to static ground. The signal wire from the coil connector had perfect continuity to the ecu but had ol to chassis ground showing there was no short. A test light was used to see if anything was coming from the signal wire to the ignition coil and that test failed, there was no signal pulse. The diagnostic process has definitively proven a component-level failure inside the engine control unit. See attached file for more detailed information.

See all problems of the 2018 Hyundai Elantra 🔎.

My car started hesitating when shifting gears in Smart and normal mode smelled like something was burning. Car only drives in sport mode, shifts hard, engine lags, and the check engine light has not come on. This is the second incident with this car. The first time I lost all power to the car and the entire electrical system shut down, when it was towed to the dealership they said nothing was wrong with it. I keep up on all the maintenance.

The horn stopped working in our 2024 Elantra. This is a widespread issue (see NHTSA complaints and reddit posts). I called ahead to verify with the san leandro dealership that parts were in stock to perform this repair under warranty (prior to scheduling appointment). We arrived and were told that parts were actually not available (after a 3-hour diagnostic). What changed? Hyundai issued a TSB (technical service bulletin) informing dealerships of how this issue is to be repaired (designating a specific part number, while excluding otherwise qualified Hyundai parts). Without TSB, the dealership could have performed this repair under warranty with the in-stock parts. The dealership could still perform the repair, but Hyundai would not reimburse them under warranty. With a[xxx] wife, I was unable to wait and return later for the warranty to cover the repair. I paid $429 to the dealership for the repair to be done with in-stock parts. I left the dealership with a genuine & working Hyundai horn, but it was not covered by Hyundai’s warranty. Hyundai has refused to reimburse us. Two key takeaways: 1 - Hyundai is denying there is a widespread issue while secretly telling dealerships how to address it. The unpublished TSB demonstrates that Hyundai is aware of a widespread safety issue, and is failing to issue a recall. The majority of nhsta complaints for this vehicle reference horn failure. This is a safety issue. I was involved in an accident where I could not warn another driver before the collision. 2 - the TSB is a mechanism by which Hyundai is refusing to perform repairs that should be covered by warranty. This is a violation of Hyundai’s stated commitment to customers that is not stated even in the fine print of the warranty. [xxx] [xxx] [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

No incident - high beams inop.

See all problems of the 2020 Hyundai Elantra 🔎.

The contact owns a 2013 Hyundai Elantra. The contact stated that while attempting to start the vehicle, there were several warning lights illuminated. The contact pressed start/stop button several times before the vehicle started. The contact stated that the instrument cluster went black, and the radio and clock were inoperable. The contact stated that on other occasions the key fob failed to unlock the vehicle. The contact had the vehicle towed to a dealer to be diagnosed. The vehicle was diagnosed; however, the dealer was unable to determine the cause of the failure. The vehicle was not repaired, and the failure reoccurred several times. The contact had the vehicle towed back to the same dealer. The dealer diagnosed the vehicle and determined that the 12-volt battery needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The manufacturer was not informed of the failure. The failure mileage was approximately 99,000.

The 2022 Hyundai Elantra hybrid blue intermittently displays check hybrid system stop safety in instrument cluster screen, which stops the car from driving in either Smart or normal. This happens on the roads and highways. This is very unsafe because at high speed when this happens you could easily get rear-ended because the car drops its speed and cannot accelerate any faster than 30 miles per hour and then it degrades to 20 miles per hour until I can find a safe place to park and turn off the car to do the reset to be able to drive again. This happens because the 12-volt lithium battery is not providing an acceptable amount of charge to the hybrid battery. This was also confirmed when I took the battery to get tested and it failed the test. The next part that is unsafe, is replacing the low 12-volt lithium battery, because it is connected to a high voltage 240-volt lithium-ion polymer battery; there a normal person cannot simply replace it. You have to know electronics to make sure you do not get electrocuted. In addition, it takes hours to take out the battery and then it’s hard to find to purchase. I feel Hyundai makes this process difficult as after spending hours to screw it out, you cannot locate the item anywhere. When I spoke to the Hyundai parts person, they could not locate it until I actually brought in the battery. The 12-volt lithium battery was nonrefundable and cost twice as much ($545. 92) as I saw online, as low as $282 once I obtain the part number from the Hyundai order, which again is nonrefundable. I feel they make sure this cannot be found to force you to come to them to buy the battery, because all the labels or characters on the battery were not able to locatable. This was proven by me emailing the battery images to the parts person who was trying to find it, but could not until I bring in the actual battery. I was also told it is a special order and that they do not keep them onsite and have to be ordered and wait 7 to 10 days(pdf attach).

Hi the Smart junction box on this vehicle is acting up. When riding in free way all doors locked open automatically and then the headlights just went off, and all the 4 blinkers stopped working creating hazard to all people in the freeway including mine . Mechanic has quoted me 2k to fix the issue and replace the Smart junction box . Please provide me fairness in this matter.

The driver and passenger headlight has been replaced and the bulbs but the headlights keep going out was told it is an electrical problem and contact manufacturer. Also emergency braking did not work in recent accident nor did forward collision warning.

At approx 1000 the horn fuse blew and rendered horn inoperable. Fuse was replaced by dealer. At approx 1500 miles horn was inoperable again, dealer recommended horn replacement however the horns are currently on back order. In both cases, no lamps or messages were available in the car indicating the horn was inoperable.

My car has 62,000 miles on it just about three weeks ago. The air conditioner evaporator went out now the car is making a bunch of noise and it’s blowing very hot air. Car should not be having this issue with less miles is this. I took it to the dealership for a diagnostic check and they told me that this is a known problem with these cars I asked was there a recall on the part due to a failing with less miles, as such the mechanic told me I need to put in a complaint and maybe something will be done so I’m sitting with this car and I literally had to keep the windows down to stay cool.

I’ve gotten my horn replaced for the second straight time in the past year. Currently at the dealership and service advisors here at west herr Hyundai in williamsville state many horns go bad as of today they’ve replaced 7 of them.

Car keeps turning off every time I start it and won’t stay on.

The reverse camera does not work.

See all problems of the 2021 Hyundai Elantra 🔎.

For the second time in two years, my horn suddenly stopped working. About 6 months after purchasing the car, the horn began to sound high pitched. Then about three weeks later the horn stopped working, requiring the replacement of the horn. A month later, the horn sounded high pitched again. Hyundai advised me the horn is a "two-horn system" in which a high pitch and low pitch horn produce the horn noise. The low pitch keeps failing. About 4 months after the horn was only sounding a high pitched sound, the horn stopped when I hit the horn to avoid an oncoming driver.

Power windows stop working, car cuts off, heated seats stop working intermittently.

I had just drove back home from work and I was driving to pick up my child from his basketball game. I was able to pull out of my driveway and get through two stop signs before I came to a third and needed to make a left hand turn. I stopped and let the cars from the highway pass until it was my turn to go. I was proceeding through the sign and started to turn and in the middle of the turn my vehicle cuts off acceleration and stops moving in the middle of the street and turn. No lights. No warning. Just loses power. I pressed the gas and my rpm’s just reved extremely high. I couldn’t move out of the middle of the street. I pressed the gas again and the car started moving approximately 5-10 mph. Luckily the car driving by didn’t hit me as I was sitting in the middle of the road. I finally got to the side of the road and put the vehicle into park for a couple minutes and tried to take off again. I couldn’t go faster than 5mph at this time. I had to drive back home and by the time I got back I had lost reverse capabilities. Dealer said no recalls and mechanics said not much they can do because there isn’t a code or light on for them to check. I just have a new car that doesn’t drive or go into reverse. I’m going to the original dealer to see if they can help now. I believe this is possibly the transmission but I am not sure.