Electrical System Problems of Hyundai Tucson - part 2

The vehicle is currently in the shop due to safety concerns involving malfunctioning exterior lighting and a serious incident of the vehicle entering limp mode. 1) with automatic headlights activated, all exterior lights shut off while driving at night, posing a significant safety risk. 2) during daylight hours, the automatic headlight system inconsistently toggles between different lamp settings, switching off and on erratically. 3) while attempting to turn left during morning rush hour traffic (on a 40 mph road where vehicles often travel 50+ mph), the vehicle entered limp mode upon acceleration. It bogged down in the middle of both lanes, unable to exceed 13 mph, placing me in a highly dangerous position. After pulling over and leaving the vehicle off for 5 minutes, the issue temporarily resolved upon restart. 4) the vehicle is stored in a garage, and following the limp mode incident, I received repeated “door unlocked” notifications every 30 minutes from 2:30 am to 5:30 am, though the vehicle had not been accessed. These issues are of serious concern and appear comparable to conditions outlined in recall #149 and recall #236, both of which address similar malfunctions related to exterior lighting and powertrain performance. VIN# currently is not within the recalls.

See all problems of the 2022 Hyundai Tucson 🔎.

Main dash (with speedometer and other driver notifications) and hud went black. Blinking "no signal" on 7/27/2025. Came back on after extended power off, but is flickering in and out when I go over a bump. All warning lights will light up, or the screen will go blank with "no signal" or restart as if I had just turned on the car. Hud comes in and out. Infotainment is working fine.

Intermittent failure of hud and instrument cluster. Hud disappears from view and instrument cluster goes dark. Unable to read speedometer and information. All warning lights are lit. Cluster has a message no signal. Dealer has on order a replacement wire harness. Problem started after 1 month and 1000 miles. Replacement part on back order will take several weeks. Loaner car has been provided. No injuries or property damage.

While driving on highway going 65 mph my car 22 Hyundai Tucson sel dashboard lights turned red and shut off on the highway with no warning, was not able to put in park for 10 minutes. My safety was put at risk, the vehicle stopped mid drive on the highway with other vehicles. Dealership has not fixed or looked at the issue.

Dashboard and hologram in windshield went off - repeatedly went out when I hit bumps and then eventually caused all dashboard lights to come on even when the car was off (7/22). Subsequently dashboard cluster was replaced and repaired on (7/30) same day in the evening it began doing the same thing again. Hyundai notified again of issue on 7/31. Car purchased in April of 2025.

The contact owns a 2025 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the dashboard went blank for several seconds. The failure occurred several times. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 2,300.

The controls (buttons) on the right side of my steering wheel progressed from slow to respond to completely unresponsive, and then the driver airbag light started coming on. At first it was intermittent, then constant. I didn't expect those two issues to be related but did come to learn it was the clock switch. According to my Hyundai dealer, this is a known issue in several other years/models of Hyundais and they have extended those warranties, "but it hasn't reached the Tucson yet". I was told that either 1 - my airbag wouldn't deploy or 2 - it would deploy randomly when I was driving the vehicle. I spent nearly $1000 in diagnostics and repairs.

See all problems of the 2017 Hyundai Tucson 🔎.

Heads up display and gauge cluster will intermittently flicker and/or reboot. When gauge cluster comes back on it will sometimes have all warning lights stay on. Have had it happen once where gauge cluster rebooted and then flashed "no signal" while repeatedly rebooting. Both hud and gauge cluster do shut off together sometimes so I am no longer able to see my speed when that does happen.

There are several electrical issues occurring that have put me in danger when driving. First the screen both on the windshield and the speedometer screen randomly go out completely and I have no idea how fast I am going or any other important features like how much gas my vehicle has, if the vehicle is over heating. The forward/ break feature has gone off multiple times and the vehicle has stopped in the middle of traffic and the freeway with zero warning and with several car lengths between me and the car in front of me. Almost hit from behind when this happens and has put the vehicle in park on the freeway. Steering wheel has jerked to the side when driving making the vehicle almost hit curbs and other vehicles. Has come back to my vehicle that is off and locked and the ac has been running causing the engine to be hot. All the warning lights have turned on and won't go off even after stopping and restarting the vehicle. The vehicle is currently at the dealership with them having to answer to the problem, stating Hyundai is aware of the issues but does not know how to fix it. I bought the car in April 2025 and there is just under 2800 miles on the vehicle.

I bought the car used, I took it in for diagnostics on my transmission. They claimed I needed a new one, not claiming I need a new clutch. My car’s model and year match the dct recall problems. But not the VIN. When my car was in the heat or accelerating it had the same issues listed. I believe this is a manufacturing issue.

See all problems of the 2016 Hyundai Tucson 🔎.

While driving I noticed my abs, traction control, aeb, and a couple of other lights came on. Upon restarting my car it was still there but the lights went away on their own after a few minutes of driving. They have been periodically turning and and off as I've driven the past couple of days. I went to the local mechanic shop who performed a diagnostic and found it to be a faulty left rear wheel speed sensor. When researching online, I've come across many people with the same make, model, and year as my car that have experienced this issue.

The contact owns a 2019 Hyundai Tucson. The contact stated that while at a red light, the missing key warning light illuminated. The check engine warning light illuminated. The hazard lights were independently deactivated. The contact became aware of an abnormal odor and smoke on the interior of the vehicle and the exterior of the vehicle. The contact stated that all the door latches were independently locked, and the engine seized. The contact stated that her minor child was also an occupant of the vehicle at the time of the failure. The contact stated that a nearby police officer and other bystanders assisted with removing the contact and the minor child from the vehicle. The contact stated that it was a very traumatic experience, and the contact was very fearful for the lives of her minor child and herself. The contact had a doctor's appointment scheduled; however, because of the failure, the appointment had to be rescheduled. The vehicle was towed to the dealer; however, the vehicle was not diagnosed. The contact was offered a trade-in option. The contact declined the trade-in option. The manufacturer was not made aware of the failure. The failure mileage was approximately 52,000.

See all problems of the 2019 Hyundai Tucson 🔎.

1. 2 sundays ago the car just slowed to almost a stop while driving. The radio turned off and the lights on dash came on. Took to service next morning and of course they couldnt duplicate problem. 2. Last week, the radio blacked out.

While driving, without warning, all malfunction lights came on the dashboard and stayed on, including check engine light. The speedometer and rpm show as zero even though I’m moving. The power steering locks up. Scary as hell! this has happened 5+ separate times within the past 2 months. The first time I had it towed to the dealer and they said it was caused by a karr alarm that was pre-installed by the dealer prior to my new purchase which I never authorized and was never activated. They said it was causing a short even though it happened 2+ years after purchase. It was removed by the dealer for free and the electrical issue happened again the next day while driving. It was towed to the dealer again and after a week the car was returned to me with no diagnosis as they were unable to replicate. It happened 2-3 more times and I got it towed to the dealer for a third time as I don’t feel safe driving this car at all. I am scared the car will die while on the highway. Car still at dealer.

The contact owns a 2025 Hyundai Tucson. The contact stated while driving approximately 35 mph, the instrument cluster went black; however, the radio was still playing. There were no warning lights illuminated. The contact stated that the failure was intermittent and occurred while driving at various speeds. The contact stated that occasionally the failure lasted for 20 minutes before the instrument cluster returned to normal function. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the coaxial cable needed to be adjusted. The vehicle was repaired; however, the failure reoccurred. The contact had taken the vehicle back to the same dealer who diagnosed the vehicle and informed the contact that the instrument cluster wiring harness needed to be replaced. The vehicle was not yet repaired. The manufacturer was informed of the failure. The failure mileage was approximately 5,000.

Limp mode check engine light code p1326.

I think when its hot like in illinois its been super hot the screen keeps going black!! I can't see the dashboard I called my Hyundai dealership will get it looked at seems like I am not the only one dealing with this issue. Main screen on left goes black or it has problem logos on it randomly.

Subject: ongoing electrical and safety issues with 2025 Hyundai Tucson limited complaint description: I am reporting a recurring and serious safety issue with my 2025 Hyundai Tucson limited. I am the original owner and purchased the vehicle brand new, directly off the truck. It has now been to the dealership four separate times for the same persistent “check user authentication” electrical issue. Most recently, the driver display screen went completely blank while driving and flashed a green “no signal” warning. This made it impossible to see speed, warning indicators, fuel level, or other critical driving information. Losing all visibility of this data while in motion is extremely dangerous and creates a serious safety risk. The dealership first said it was caused by loose coax cables from the factory, but the problem continues. I also experienced a sudden, complete electrical failure while driving. The instrument cluster and infotainment shut off, speakers went dead, and all charging ports lost power. The head-up display (hud) also failed during this same event. Restarting the car temporarily restored function, but the failure happened randomly and without explanation. The air conditioning system now loses power and restarts while driving. The dealership has had the vehicle for over a month with no resolution. Hyundai corporate is involved with multiple case numbers, but no permanent fix has been found. The most alarming event was when every major dash warning light came on at once: abs, power steering, traction control, stability control, afs, epb, and battery. These lights stayed on even after shutting off the vehicle and fully drained the battery. These repeated failures pose a serious threat to driver and passenger safety. I request that NHTSA investigate these issues, as they may affect more 2025 Tucson models.

While driving, on multiple occasions all warning lights will come on and the car will start to lose power. The headlights constantly go off and come back on randomly. Turn the blinker on and the rear window wipers intermittently come on. The vehicle has been towed to the dealership so many times and we either get “can’t duplicate” or needs oil change, which had just been done. Now we are being told that we need a second engine replacement. Unfortunately this time it will not be covered by warranty. We have reached out to Hyundaii motors 3 times and the bbb auto but they stand behind it not qualifying for the lemon law. Hyundai should have some obligation as all these issues are “known issues” just not recalls. The 2016 Hyundai Tucson is not a safe vehicle.

Safety issue having to replace multiple horns on the vehicle. Known issue from Hyundai America. Would like an investigation, maybe a recall.

1 forward collision unexpectedly slammed on the brakes when I was trying to go forward to make a left turn. There was no one in front of me nor each side of me. I had 2x4’s in my car that were thrusted forward damaging my dashboard and display. I was told to take it to the dealership on Monday 2 I was fine just hooked up, but the driver was pissed off at me thinking I was stopping short on him 3 randomly the rear sensor would go off telling me they are too close when I’m at a complete stop. It has randomly stopped short on me but I thought it might have just been an over sensitive sensor. I have previously owned an ioniq 5 and the sensor would never stop going off even if I was 2 car lengths away. 4 the car is going back to the dealership on Monday so it has not been expected yet 5 exactly 6 days after purchasing the car the airbag indicator showed up on my dashboard while I was driving. I was used to the ioniq 5 sensors always going on when I was stopped waiting for a green light that I just thought it was the same way. It had abruptly stopped on me three other times between the 6th and today the 21st. I have only had it for 3 weeks. I have never gotten any warnings before the car just slams the breaks on. After looking online about this issue I decided to make a report before I take it to the dealership so you have it on file. I am very disappointed with this vehicle and was so excited when I bought it. I have been a loyal customer of Hyundai since 2017 when I bought my first ioniq and I have purchased 6 other cars for my family members since then. I still purchased the Tucson after having to take a 15,000 loss because the ioniq 5 never held its value. Now I’m wondering if I should switch manufacturers.

My 2023 Hyundai Tucson has had the horn replaced twice. The technician indicated this is a common problem due to the location of the horn its susceptible to water damage rendering it useless. The horn is something rarely used and we were not aware it did not work until we tried to use it to alert a car entering our lane of traffic!.

See all problems of the 2023 Hyundai Tucson 🔎.

I purchased a new 2025 Tucson limited hybrid model. I owned it for five days when the dash display went blank, leaving me without any speedometer, warning indicators, or safety features, such as lane departure warnings. There is a manufacturers bulletin on this defect. Took it back to the dealer, and they tried to sort it out. They kept the car for a week and indicated that it was fixed. I picked up the car, and in 2 blocks it did the same thing. Car is now back at the dealer. I believe this is a significant safety concern, as all safety features should be visible, especially the speedometer.

Battery management system failed safety-could not drive on interstate. Very unsafe. Dealer inspected problem afterwards. Warning lights appeared at time of problem. No warnings before. No signs of problem before it happened. Synopsis: after driving through a torrential thunderstorm on the interstate (06-13-25) and as we were getting ready to slow down for our exit on the interstate, we hit the brakes and our SUV gave us a warning. The warning said, "battery management system discharge". The SUV is a hybrid. At this point the SUV locked into e v mode. Our SUV would only go 10 mph which was very dangerous. It should be able to go up to 35 mph in e v mode and then past that, switch into gas mode. As stated, we could only go about 10 mph. We made it to our exit and found a spot to pull off the ramp. We let the SUV sit for a few moments and turned it off. We let it sit for a minute and then turned the car back on. The SUV when we turned it back on gave us a check engine light and still would not go over 10 mph. Luckily we were stopping for dinner. We were able to proceed to our destination. After dinner around an hour or so, when turned the vehicle back on, the SUV still gave us a check engine light. But was able to drive normally and switch between e v and gas modes. We made it home safely at the end of the weekend on 06-15-25. On 6-16-25 we took the SUV to be looked at by the dealer we purchased it from. Our phone app showed code dtc p0aa600. We gave the code to the staff. The staff inspected the SUV. The report stated, "customer states stopped driving and there code p0aa600 battery warning light npf could not duplicate problem. Tech scanned for codes code p0aa600 was found as a history code. Tech checked live data and everything came back within spec. Followed the flow chart procedure for the code. Check for bms isolation faults none found. Check 12volt battery. Battery is good". We drove it home and filed this report.

The contact owns a 2024 Hyundai Tucson. The contact stated that while the vehicle was parked, while attempting to enter the vehicle, the key fob failed to function as intended. The contact was unable to unlock the doors to the vehicle. The contact noticed that the battery was completely drained. The vehicle was taken to the dealer; however, the failure was not duplicated. The contact was informed that the vehicle needed to be started daily to prevent the battery from draining. The contact stated that the failure was persistent. The contact stated that because of the persistent failure, the contact was afraid to drive the vehicle. The vehicle was taken back to the dealer; however, the failure was not duplicated. The manufacturer was made aware of the failure. The failure mileage was approximately 900.

See all problems of the 2024 Hyundai Tucson 🔎.

Horn does not work. On going issue with this model per Hyundai Tucson forum.

Our Tucson was stolen in charlotte, nc on [xxx]. The pax rear window was broken and the thieves broke open the steering column to start the car. It appears they used the well-known "tik-tok" method. I have record that our Tucson had the "software update" installed, at a local dealership, a year ago. This update (which should've been a recall) was supposed to address this issue. Despite this update, the car was stolen in less than 2 minutes (I have ring camera pictures with timestamps). I have doubts now that the dealership actually did the update. Part of the update includes a specific window sticker that is to be applied to the driver's door window. That decal is missing. There is no evidence that it was ever there (I have pictures). The car was recovered but cannot be driven. It must be towed due to the damage. Another concern is the engine and drive train. Criminals were out joy riding in our stolen car on an almost full tank of gas. Because the car cannot be driven, I don't know if there is any damage to any part(s) of the drive train. We are now waiting for our insurance company to arrange to have the car repaired. I am very concerned now about the long term viability and reliability of this car. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Car cuts off when driving the speed drops down automatically stops the dash lights go out and can’t start it right away.

The heads up display and dashboard turns off and on, sometimes going black for 20 min at a time. This results in not having a speedometer or gas gauge, which makes it an unsafe vehicle to drive. Dealer has not been able to fix, despite multiple repair attempts. There are many Hyundai Tucson hybrid limited owners reporting identical issues online. Identification of affected vehicles, determination of an effective repair, and recalls are needed to ensure safety.

The following problems began 5 months ago, 8 months after purchase with about 4770 mileage and current mileage of about 7623: multiple occurrences of check engine light coming on, sometimes setting dtc code, but often not setting code. Multiple occurrences of crash warning light coming on; it may have set a code or codes, but usually not. I think neither dealer was able to reproduce these 2 intermittent problems. Engine light, so far, has not occurred since it was traced to faulty connectors. As far as I know, the crash warning light has not come on since the dealer reduced front camera sensitivity. Also, for the past 5 months there has been intermittent, engine miss, skipping or cut-out. As of this writing it still occurs while driving and will lurch or buck if it happens under acceleration this is not frequent, but it happens erratically and it may happen only once or a few times in one day or several days between. This has not set a dtc code as far as I know; I think the following may be related to the skipping. Once, while coming to a stop, the engine stopped or almost stopped; it bucked when it happened, but continued to run. All warning lights came on for a second or two, then went off, except 3 warning lights and the warning triangle. Although the engine was running, the tachometer and speedometer read zero. The engine bucked as I slowly drove into a parking lot, then I restarted the engine; it seemed ok, then. About 3 weeks later, while driving at slow speed, just as I took my foot off the brake and was about to accelerate, the engine quit. When the engine quit, the audible crash alarm went off with a message saying the engine was not running, press the start button. I started the engine, it did not have normal power. I stopped, restarted the engine and it seemed ok. I have been to the dealer several times because of these problems; dealer is still troubleshooting the last incident. This could cause an accident, especially if it occurs at a higher speed.

While driving, my entire dash will go black. At times, all warning lights will also light up. There is no way to know how fast I am going since the display shuts down. Heads up display also goes out with warnings as well. With all warning lights coming on, there is no way to know if there is truly an issue with the car. The car was taken to the dealership and the cluster was replaced. This did not fix the problem. The car is now back at a dealership with no answers. I do have a case opened with Hyundai as well. Case # 41048985. I am a part of a facebook group were an additional 19 people have also said they have experienced the same issues. There seems to be no real concern from Hyundai. Safety risk - speed visibility, warning lights, overall safe operation problem as been confirmed by the dealership no issues with the vehicle prior to this.

While driving, my entire dashboard lit up with every warning sound and symbol for the car. It would cycle through collision, airbags, braking, all of it. Luckily I was able to drive to a safe place. I let the car sit overnight and the alarms stopped. Took it to service and they could not recreate it and no codes showed up. Second time it happened, the warning sounds and lights didn’t stop. The car would jerk when I tried to put it in drive, so I had it towed to dealership. They have video and photos of it. After 2 weeks, they said it was fixed-a pin in a connector was bent. Had car for 3 days and it happened again. Had it towed again. They have had their ‘senior’ techs looking at it, and none can figure it out. There are reddit posts with this same issue, as well as Hyundai group sites.

My catalytic converter caught on fire a couple months back then I hit a code for the knock sensor replaced it and it started to act up again I can’t go over 49 burning oil took it to Hyundai now they are saying my engine is going out and I’m still panting carmart got the car.

Intermittent flickering of the infotainment + backup camera screen. The screen displays glitching bands of static, loses touchscreen functionality, and reboots on its own. The flashing light presents a significant safety hazard when driving at night. Dealer has tried replacing the head unit and adjusting the coaxial cable with no success.

The contact owns a 2023 Hyundai Tucson. The contact stated while driving approximately 45 mph, the accelerator pedal was depressed while merging onto a highway, but the vehicle lost forward momentum. The contact stated that the message "limited to 20 mph" was displayed on the instrument cluster. The contact depressed the accelerator pedal, and the vehicle failed to respond as needed. The contact stated that the engine was not revving. The contact pulled off the highway and into a parking lot. The contact turned the vehicle off and on, and normal driving was resumed. The contact stated that the failure was intermittent and was occurring while accelerating. Additionally, the contact stated that upon starting the vehicle in the morning, the vehicle would jump forward while still in park (p). Additionally, the contact stated that the horn had stopped functioning after the last loss of forward momentum but had returned to normal function a few days later. The vehicle was taken to a local dealer, however, the dealer was unable to duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 26,500.