Electrical System Problems of Hyundai Tucson - part 2

Bought new, less that 400 miles in November 2025. Within 2 weeks dash board went blank/black. I consider this a driving distraction especially at night when nothing shows, no speed no gauges. Blackout time varies each occasion. Sometimes after a few seconds all warning light come on and stay on until vehicle shut off . Sometimes a no gignal message. Contiued after service visit with update to vehicle at about 7300 miles in January 2026. Service department acted like they have never heard of this issue.

See all problems of the 2025 Hyundai Tucson 🔎.

2 times, while driving 35-40 mph, the vehicle automatically slammed hard on brakes to full stop without any danger or other vehicle near, causing neck pain/whip lash. 3 days ago, I attempted a u-turn in busy intersection, suddenly the vehicle braked hard and came to full stop without any danger near. The dash lights lit up, the vehicle stalled. I was in middle of very busy intersection. It would not move forward. I reversed just in time to miss being slammed into by fast moving oncoming traffic.

Component that fails & available for inspection upon request? hvac heat exchange and faulty gas gauge. I drive from minneapolis to warroad, mn frequently and the floor wells has insufficient heat hence impairing use and safety in minnesota's severe climate. I have videos on the following but I am unable to upload videos to your site: (1) when I have heat on high, full blast and to foot well only, the dashboard vent is 115-143 degrees (using a digital food thermometer) and a ~60 degree difference with the footwell at 65-85 (although 85 degrees sounds warm at 1 degree outside my feet are very cold - I would be happy to have you test this with me). (2) brand new SUV consistently 1. 5 - 3 hrs to warm up. I explained to Hyundai this is not a software issue rather an hvac air exchange issue. (3) the gas gauge consistently underestimates the remaining fuel available by 50% in cold weather - an issue that between bemidji, mn and baudette, mn (102 miles/1hr 45min) there are few gas stations. On 11/11/2025 I took the SUV to first bloomington Hyundai - they said it is working as designed. Then 11/20/2025 to morries Hyundai said they are aware of a similar situation with the eon. However, without an "error code" Hyundai is unwilling to fix the air exchange. Additionally, I opened case#: xxx[xxx] -68 with Hyundai corporate - additionally they are unwilling to admit fault - this vehicle should not be sold in minnesota's extreme climate conditions. How was your safety of others put at risk? if I run out of gas, my passengers and I risk frost bite or fatality of hypothermia. Has the problem been reproduced or confirmed by a dealer service center? yes. Has the vehicle or component been inspected by the manufacturer? yes. Were there any warning messages or other symptoms of the problem prior to the failure, and when did they first appear? no warning messages have ever appeared. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Car often does not accelerate when hitting the gas. Was turning onto highway from a stop car did not accelerate causing other vehicle to swerve to avoid hitting me as my car would not move. Couple seconds later it moved.

See all problems of the 2016 Hyundai Tucson 🔎.

Blindspot detection did not pick up car on my right side two times. Front collision warning is effected by the angle of the sun at certain times of the day. Dashboard dims randomly. Could be for a minute or much longer. Could dim on and off, or stay dimmed for over twenty minutes. Brought the car in twice for this problem. Claimed nothing found and tech reset the codes. Bought it in two weeks later, stating problem not fixed. Told them to check connection, suggested they might want to replace the cables, and its a known problem. Again, reset the codes. Only this time they fiddled with the dimmer control on the console and I can no longer adjust the setting.

The faws forward assistance warning system incorrectly identifies a "sleepy driver" and turns off adaptive cruise control. Faws has a dozen triggers that will cause this system to incorrectly alert the driver that his eyes aren't looking at the road and it turns off acc. The faws has a turn off switch but it does not turn it off. So, without this safety feature of adaptive cruise control, the driver just gets constant alerts to stay alert. Hyundai claims it is working "as designed" and has a suggestion to invest in specific sunglasses, or not be taller than 6'1" so the eyes can be detected, or don't wear a hat. Seriously, these are in the manual.

My 2018 Hyundai Tucson experienced complete engine failure at around 118,000 miles. The motor suddenly blew without warning. This vehicle uses an engine type known for widespread engine defects, including bearing wear and internal failure. I bought the vehicle used in 2023, maintained it regularly, and there were no warning lights or overheating before the failure. I had to put oil in my vehicle every week. I had to use 5qts of oil. It smelled like fumes coming through the vents. It then stalled on the highway while we had our son in the vehicle and shaked profusely. Mind you we had our son in the vehicle. How unsafe is that. I then did my research and found out Hyundai engines of this generation have a history of stalling, seizing, and internal damage. I am filing this complaint because this appears to be part of a known safety defect that can cause sudden loss of power while driving. We took it to shop and confirmed the motor blew. It was faulty. Also, sometimes the electrical components would turn off in vehicle such as radio and would go black. Also the turn signal would be on and then turn off. It would also shake while driving. This needs to be taken care of ASAP as it almost caused danger to my family and also caused financial strain on my family too as I now had to roll over my vehicle loan into a new safe vehicle. I would like to be contacted in regards to this. Thank you.

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Sensors something to do with the motor and not sure where the other sensors is related to could be the motor as well. The safety was not good due to it shut off in the middle of traffic and making wraddling noise. I took the vehicle to the dealership where purchase from. They have done nothing besides fixed one thing that I know of supposed to been the surpension. But the other problems was not fixed no it has not been inspected by anyone the warning lamp come on and just blinking none stop.

See all problems of the 2017 Hyundai Tucson 🔎.

As I was driving I was stopped & told my car was on fire. I immediately stopped & hopped out & less than 30 seconds later half of the hood caught heat/fire & flew into the windshield breaking it. At least half the car is burnt to ashes.

As I was parking my car in a parking spot going about 5 miles or less. My car surged forward at a very accelerated speed, and I ended up running into a brushed and a metal fence, which is what stopped me. There were no warnings that went off on my car. No emergency brakes, nothing.

See all problems of the 2023 Hyundai Tucson 🔎.

In October 2025, the center display screen in my 2025 Hyundai Tucson hybrid began shutting off repeatedly while the vehicle was in motion. The screen controls essential functions including speed information, navigation, backup camera, safety alerts, and hybrid system data. When it shuts off, all of these features become unavailable without warning. The failure is intermittent and continues to reoccur. The component involved is the center display/infotainment system and may affect related radar and safety-system warnings. The dealer stated they duplicated the issue and reported that it was repaired, but the same display failure occurred again afterward while I was driving. The vehicle is currently with the dealer and is available for inspection upon request. My safety and the safety of others is put at risk because when the screen shuts off, I lose access to critical vehicle information. This has happened at highway speeds, including one instance where the display shut off approximately eight times within 20 minutes. In addition, the radar warning system has activated when no nearby vehicles were present, creating distraction and uncertainty. The problem has been reproduced by the dealership, documented by me on video, and reported to the manufacturer. The vehicle has been inspected multiple times by an authorized Hyundai service center and reviewed by the manufacturer’s customer service department. There have been no police or insurance inspections because the defect has not resulted in a crash, though the safety risk is significant. Warning symptoms include intermittent radar system alerts appearing without surrounding traffic. These symptoms began in October 2025 and have continued even after dealer repairs. The display failure persists and the vehicle remains unsafe to operate. P. S. I cannot upload video evidence as the website would not allow me and I have to start over.

The contact owns a 2020 Hyundai Tucson. The contact stated that upon starting the vehicle, the brake auto hold was engaged unintendedly and failed to disengage upon pressing the button, which required the contact to turn off, restart, and drive the vehicle for some time for the brake auto hold to disengage. The contact stated that the failure had been recurring. The contact stated that the infotainment system was inoperable. Additionally, the passenger's side rear seat belt failed to buckle as intended, and the passenger's side rear door handle fractured while the contact was opening the door. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 102,000.

See all problems of the 2020 Hyundai Tucson 🔎.

My 2017 Hyundai Tucson has completely broken down will not go into reverse had a diagnostics at Hyundai. I thought it was going to be covered because of the class action suit. My car apparently was not in the recall or the suit. I don’t understand I have the identical problem of the dual clutch transmission issue. I’ve tried to get Hyundai to do good-faith repair they refused. I’ve contacted carmax where I purchased the vehicle. They had the car when the lawsuit was finalized I didn’t know anything about the lawsuit or the problem with the vehicle. I’ve had the car for five years it’s at 85,000 miles. I don’t know what to do.

Got vehicle registration notice and recall notice was on the form regarding a possible electrical fire while parked or driving. I just got this car about 9 months ago, dmv is still showing nothing has been done.

See all problems of the 2012 Hyundai Tucson 🔎.

Vehicle propulsion system failed, as a result vehicle rolled down an inclined driveway in to the street and was stuck in the middle on the street in traffic. Vehicle had started normally, was able to shift into drive, no obvious warning lights or error messages displayed. Vehicle would shift into drive/park/reverse as required but would not move. Upon shutdown an restart two warning lights were display but vehicle would still not move. Vehicle only had 168 miles on the odometer. Vehicle is a hybrid, engine was running and battery charged. Apparently the problem was a failed "over the air software update", this was corrected by dealer (see attached file). Safety issue is that the vehicle, 1 failed to display any error regarding a failed update, 2 failed to immobilize the vehicle allowing to move in an unsafe state, 3 failed to notify owner that updates had been done, 4 proceeded with an over thew air update that could potentially place the vehicle in an unsafe state.

Approximate date 10/7/2025. Driving 20mph clear daylight sunny conditions in right lane,another vehicle in left lane put on right blinker to merge in front of me into my lane. The merging vehicle was 3 car lengths ahead and had plenty of space to merge. Merging vehicle was only half way into right lane when without touching the brakes and no warning alarm the wheels locked up completely,skidding to a complete stop,almost got rear ended. 2 days later on 10/9/2025 same weather conditions while driving on highway the traffic was stop and go,speed 40mph. A vehicle ahead of me applied their brakes,no imminent threat, I placed my foot on brake pedal as a precaution,then brakes locked up so I pumped brakes thinking what else could I do? this did nothing,brakes remained locked until vehicle stopped. Almost got rear ended again. I can’t remember if any audible alarm or dash warning. These were the only 2 incidents with braking failure. Hyundai dealer booked appointment but they could not find any issues with the braking system on 10/2025. Mechanic could not reproduce braking issue. When I picked up vehicle I spoke to the mechanic. He said “ if the braking issue occurs again please make another appointment. The salesman who I purchased the vehicle said “shut off the warning system”. Which I declined his offer. Thank you!.

All warning lights illuminate and the dashboard showing the speedometer shuts off while driving as well as the heads up display. You have no idea how fast you are going or if you are have any warning lights.

My instrument cluster goes off/on intermittently causing a safety issue (I'm unable to see how fast I'm driving etc). The problem has happened to me everyday for the last 1. 5 weeks, however the dealer has had the car for a week now and claims they can't replicate the issue to get the code to order the part (I have filed a complaint with Hyundai). I want to go on record as this is not a recall with Hyundai yet, but I am aware it is a well known problem with 2025 Hyundai Tucson's according to a north America facebook page I belong to where we discuss various topics (positive and negative) regarding our cars.

I have experienced 4 repeated issues within 4 months with my vehicle. Starting in September 2025 and the 4th and current issue today 1/12/26. Driving when all of a sudden all of my brake components lamps come on dash oard, forward collision alert, and check engine, my vehicle struggles to accelerate accurately. Blue link diagnostic throws various codes such as ecm, transmission control system, even "multiple possible issues". Each time my vehicle has been at Hyundai dealership for repair. Each time they repair something different 1st- replace abs module and hydraulic brake, 2nd - happened out of state at my mother funeral and replaced my ecm, 3rd couldn't figure it out and guessed it was my forward collision camera and replaced it, 4th - is today and awaiting dealership diagnosis. This issue has left me stranded several times local and long distance, occured in middle of driving including on highway, and overall uncertain of the safety and reliability of the vehicle as each time it has been the same type of issue. I have been in communication with Hyundai corporate since October and they stated that even tho I only have 24k miles on the vehicle that it is outside the state of in lemon laws for a buyback. If I hadn't purchased an extended warranty I would be in even more debt or unable to put it in the shop even tho I don't feel like this should be my burden when I have kept this vehicle in great shape, low mileage, frequent oil changes, etc . However the safety of my vehicles goes unresolved. At this point I am uncertain that Hyundai is properly diagnosing my vehicle and not certain how these issues are impacting other components of my vehicle such as brakes, transmission, engine, sensors. I am the only owner of this vehicle bought brand new. I have checked repeatedly for any recalls that I have not addressed and at this time none are pending. I fear that this vehicle will continue to have more safety issues.

Both horns needed to be replaced three times due to both stopped working and I listed the dates below. First time replacement: 4-6-24, second time replacement: 10-9-24, third time replacement: 1-16-25. Now on 9-26-25 both horns stopped worknig again, I checked the horn fuse and that is good. I now need to call the dealer to have both horns replaced for the fourth time. I also contacted Hyundai's national customer service to log a complaint as well. To me this is a safty issue since the horn is used to possible prevent an accident. I check the horns when I drive the car since they go bad so often and I have under 28,000 miles on the vehicle.

See all problems of the 2022 Hyundai Tucson 🔎.

My vehicle was purchased new and has less than 5100 miles on it. The screen and heads-up display randomly begin to glitch and then simply go dark. I can't see my speed, fuel or charge levels or any important data while driving. This has happened multiple times already. My vehicle is a 2025 model. Interestingly, Hyundai had the same type issue on 2024 models and issued a TSB to resolve this issue, but have not issued any repair for the 2025 models. This is a major safety issue.

The backup camera is not working and theres a glitch on the screen when on reverse gear. In addition the adaptive cruise control is not working 8-9 out of ten times.

Front passenger door will not open using the key fob. It has to be opened from the inside door handle. If there was an accident the door would not be able to open from the outside. This is a serious safety issue. There have been numerous issues with this problem. Hyundai should recall these vehicles for this safety issue.

Parked subject car in garage at approximately 11:15 am after turning off ventilation fan and cutting engine off, which displayed "off" at dash button. At approximately 7 pm (same day) went into garage to retrieve item and heard this loud noise similar to an electric clothes dryer running - wasn't dryer. As I got close to car, heard this same sound. Raised hood and could feel air movement . Checked engine oil - not warm. Backed car out of garage into driveway out of safety concern in case of fire. Will contact Hyundai motors to report this incident and for instructions what action I should take next. This is the first incident regarding my car"s electrical system. During the 3 hours driving that morning, I had no warning signs on dashboard or fan motor running after turning engine off. Had made 3 stops and engine start ups during that time.

The contact owns a 2020 Hyundai Tucson. The contact stated that the vehicle unintendedly shut off while driving. The vehicle was restarted. There were no warning lights illuminated. The local dealer was contacted and scheduled an appointment. The vehicle was not yet diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 70,000.

For about a year I have had issues with my car not accelerating in stop and go traffic. I push the gas pedal and it moves a little then will not go for about 20 seconds. Sometimes the engine will flutter. I have taken it to Hyundai and was told no diagnostic codes show and they can't find anything wrong despite bringing the reports from my auto shop of these things occuring. My car is going in yet again this week because this issue continues to get worse and I have almost caused several accidents in traffic due to not being able to drive. There is a recall however Hyundai says my car is not in the recall despite the same issues the recall is for. I have all routine service done when needed and have taken care of this vehicle but I feel like Hyundai should step up because this is very dangerous not only for myself but other commuters as well. The Hyundai dealership literally said they just have the sign on their building they don't support these issues.

I was driving the vehicle at 30 mph when the power to the instrument cluster, infotainment center and headlights went out for approximately 1-2 seconds before recovering. Engine maintained power and acceleration during this period. During blackout I was unable to view speedometer nor other instrument information.

I have had two incidents with this vehicle (that I have owned for less than 90 days) that have raised safety concerns. Both involved the loss of all information on the "instrument panel" aka dashboard. In the first (August 18, 2025), all of the warning lights came on, then the screen went dark - there was no information on the two screens and no head's up display. This happened while I was on the highway doing about 65 mph. After I was able to pull over safely, it took several attempts to get the vehicle started again and in gear. I took it to the dealer the next day and they were unable to replicate the issue and saw no codes. The second episode occurred yesterday (9/6/25). This time the screen went dark except for a large red warning "no signal". The screen came back after a few moments; I am taking it to the dealer tomorrow. Both of these involved losing all information as to the speed of the vehicle - which I believe is a safety issue. Both of these issues have also been reported by others on facebook ("Hyundai owners") since late last year and it appears to be some sort of electrical issue but there has been no TSB or recall by Hyundai yet.

All warning lights and audible alarms started going off at the same time. Eps, abs, auto hold, collision warning, air bags, all wheel drive, brake system, and more. 1st time it happened was [xxx], while driving. The car was drivable but I did notice a difference in braking and acceleration. I parked and turned off the car. I did turn the car back on several times and the alarms continued. I finally turned it off for 10 min, and all alarms stopped, but the check engine light stayed on. Car sat overnight and all warnings had stopped. Took it in for service, and issue could not be duplicated. 2nd time it happened was [xxx]. I had to have the car towed since it would not move when in drive or reverse. Alarms were still going off when it made it to service. They replaced the brake harness. 3rd time happened on [xxx], 3 days after the brake harness was replaced. Towed it to service and they replaced the engine harness. 4th time was on [xxx], 2 weeks after engine harness was replaced. This time there were no audible alarms, just all of the visual ones. Same performance issues as stated before. This issue seems to have happened to several other Hyundai owners as well, as per complaints in reddit and on Hyundai forums. There does not seem to be a consensus for what is actually causing this issue. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

To be honest, this could have been happening for months and I just didn’t pick up on it. I typically look out the front window and use my heads-up display. I’m very rarely looking at the gauges while I’m driving down the street so this just happens to be when I began to notice it. 9-4-25 near 4 pm left side screen where gauges are located blackout -it didn’t last long, but it did frighten me and then it did it again and the second time it did like a restart because it came up with the ready to drive message 9-6-25 10:40am left side of screen black out 9–16–25 7:13 am. Left side screen where gauges are located blackout a second time at 7:12 pm 9-18/25 4:45 pm left side of screen black out 9-20 -15 10:45 am left side screen where gauges are located blacked out 11:24 am all gauges lit up on dashboard I don’t even know all these signs. These are the ones I recognize battery, brake, auto hold, ready, number of caution signs, airbag sign, afs, abs epb (image uploaded showing the car in drive) I turned off the vehicle. The lights remained on restarting the car made no difference. The next day car started normal no access dash lights took the car to the dealership on sept. 23, when I made the appointment, they acted like they had never heard of this happening . . . However when they called to discuss my car they said they have had several come in with the same issue. They stated they needed to replace a wiring harness, but it is on indefinite backorder according to the service person. I think his name was [xxx] . They were unable to tell me when they will be able to address this concern. I am concerned this sounds very similar to the Toyota's that are being recalled and if both companies need the same part how safe are these cars from Hyundai to drive. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The electronic dashboard and heads up display go blank for as little as a few seconds to over 30 seconds. This happens over and over again. Sometimes in doesn't happen at all but more often than not it does. I have no data when this does this, no idea what speed I'm going at, no data about the blind spot safety controls. Nothing. If it unsafe to drive without knowing what speed you are going and other information. The dealer said they could not reproduce the condition even though there is a hyundia technical service bulletin out for the same problem on a similar Hyundai and many, similar reports on the Hyundai forum. The dealer said they could do nothing even though I had to drive off in an unsafe vehicle.

While driving, the digital cluster (unit that displays speed, fuel etc) goes blank many times and this is a major safety issues as critical info is unavailable and also very distracting while driving as the unit flickers and reboots during driving. Here are a few videos of the issue: [xxx] I took the car to dealership where they replaced the cluster module but I still am facing the issues even after repairs. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The instrument panel side of the infotainment screen has gone completely black on multiple times . The heads up display flickers and goes out, therefore, no way to see what speed I’m going. . Extremely dangerous. . Also all warning “dash” lights come on. I have a video of the dash lights on and the screen going black and coming back on. . I dont make it a habit of driving with phone in hand. Your system will not let me upload my videos!.

This vehicle is a pile of hot garbage. Front end collision system slams on the brakes when you are not even close to hitting something in front of you plus it will auto brake randomly but often. I was backing into a parking spot and someone walked in front of the car and it slammed on the brakes. Dealer says only way to fix this is to turn the entire safety system off. The coffee break warning has zero rhyme or reason and will go off 10+ times in a trip even though I am not distracted and use my turn signal changing lanes. Dealer states there is no way to turn this off. Dashboard randomly flashes and goes dark along with all lighting in and outside the vehicle. Dealer was unable to duplicate the problem and returned the car with no fix. Drove the car in the rain for the first time and dashboard came up with a ton of errors and crash detection turned off. This is new and will be taking the car in for this and is now the reason I am filing another complaint. This vehicle is not safe and can be very scary to drive because you don't know when it will just take over for you.

Third time SUV was parked for multiple days without being started and the main battery did not keep the charge. First time was five days and required a battery jump. Then it was 22 days, and as expected, the battery did not keep the charge and required a jump. This week it was eight days and same thing happened. I know the SUV is a hybrid but the main battery should not be run down to not be able to start the engine after a short time not being started. My brother has a 2014 Ford product hybrid and does not have any battery issues when that hybrid vehicle is not started for a period of time.

See all problems of the 2024 Hyundai Tucson 🔎.