2024 Hyundai Ioniq 5 Complaint Log

Had car in for regular service. No problems reported by service department. Immediately after leaving the dealer, less than 1 mile away, a warning message came up on the screen that the car "may have experienced a charging/electrical event, and to contact my dealer immediately of service. Risk of system failure. I immediately returned to the dealer, and they did a quick diagnostic check, which revealed DTC code P0AA600. This is the second similar incident with this car. On 1/10/25 this car had recall campaign 272 performed, which was supposed to fix this problem. On 8/22/25 the car would not start and had to be towed to the dealer. They replaced the 12v battery and claimed the battery was defective.

Warning light came on stating that we needed to have the electrical system checked asap. Vehicle would not charge from Level 2 charger. It needed to be towed from our house to the dealer to get its ICCU replaced since there was a risk that it would no longer power vehicle on 4 mile drive to dealer for repair. Problem was fixed in one week by Roseville Hyundai by replacing the ICCU in the vehicle

While driving, I heard a loud pop in the rear passenger side and subsequently, the dashboard showed an error to "stop vehicle and check power supply". After driving about 15 minutes, another error showed on the dashboard "12V battery voltage low. Stop safely". After coming to a stop, the vehicle completely shut off and would not turn back on. A tow truck was called and my vehicle was towed to a Hyundai dealership. The vehicle is now at the service center at a Hyundai dealership. The dealership confirmed it was an ICCU failure. While there was not a crash or any injury, the known defect from Hyundai left my wife, my [XXX] daughter, and me, stranded 60 miles away from home, in the middle of the night. Luckily we were pulled over safely and not in the middle of the highway. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On December 28, 2025, the vehicle displayed the dashboard warning "Check electric vehicle system." It was brought to the dealership and has been sitting there for 24 days so far due to a drained 12v battery and failed ICCU system. The dealers informs me that the ICCU is on a "national freeze, meaning that the part is on standby for further review by Hyundai engineers. The safety of everyone in the vehicle was at risk because the electrical system could have powered down in traffic without warning.

The ICCU failed while driving. A loud pop occured then a red warning light came up asking you to stop the vehicle and check the power supply. The car went into turtle mode where I could at best drive 25 miles per hour. This car was part of a recall last year to prevent this issue, however only a software fix was performed. Luckly I was able to get the car home on a very cold day.

Almost immediately after shifting into reverse in my garage, I heard a loud pop come from the back seat. The car began to flash warnings on the dash about the electrical system, which turned to an emergency error after about a minute. I ended up having the car towed to the dealer, who confirmed the ICCU blew. I had not had the car on a charger in over 2 weeks and it is only charged on a level 1 charger in my garage. It has now been 2 weeks since the dealer received my car and are claiming that the part is still on back order.

all suddenly car started to show : Check electric vehicle system" And slow down to 25 miles and eventually 10 miles. Make it not drivable. Looks like ICCU issues

I am writing to formally document a serious and ongoing safety concern with my 2024 Hyundai Ioniq 5 SEL RWD Long Range Vehicle Information • Vehicle: 2024 Hyundai Ioniq 5 SEL RWD Long Range • VIN: [XXX] • Purchase Date: January 2024 • Purchase Price: $44,139.80 Summary of Events • May 2, 2024 – Recall performed: DTC CHK ICCU FUSE RPL24-01-0234 at Casa Hyundai Las Cruces • March–April 2025 – Repeated 12V battery failures. After two visits to Casa Hyundai Las Cruces, I was told an app on my phone (El Paso Electric charging discount app) was “checking in” too frequently. I deleted the app, and the issue temporarily subsided. • December 20, 2025 – Vehicle would not start after sitting for approximately one hour. Required a jump start from USAA. • December [XXX] – Vehicle would not start again; service appointment scheduled. • December [XXX] – Vehicle was jump-started and driven toward Findlay Hyundai St. George. While driving on the highway, the vehicle suddenly lost power. I was able to pull off the freeway, but this was an extremely frightening and dangerous situation. I was fortunate that my husband was following me. The vehicle had to be towed to the dealership. As of now, still waiting on parts (ICCU replacement) with no date given on backorder. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ICCU failed. Confirmed by dealer diagnostic.

Component failure (ICCU module) lead to loss of power while driving. Vehicle required tow.

I was driving and emergency lights went on declaring no more energy to the car despite being at 68% charge. I was able to pull the car off the road. A tow to the Hyundai dealership revealed it was an ICCU failure. I had done the ICCU recall. It was towed to the dealer on 12/21/2025 and the car was fixed on 1/12/2026 (they needed to wait for the new ICCU unit to arrive).

My 2024 ioniq 5 has no recall but they have a well known issue where the ICCU does not charge the 12v as expected. this results in loss of power. In my situation, i was driving on the freeway at 65MPH when i got the low 12V battery message and my car slowed down and I was not able to accelerate at even street speed. I was fortunate enough to pull the car over from the left lane to the right shoulder as the traffic was light. This could have easily resulted in an accident. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On Monday Dec 15 I was on the Coranado bridge in San Diego heading on the island. A warning flashed about the electric system. Then, towards the end of the bridge, the car immediately slowed down suddenly and I could feel the regenerative breaking. I had to time or opportunity to get over. By the grace of God, traffic started to slow as we got near the end of the bridge and the car was able to go roughly 20 MPH on the side roads with my foot all the way down on the accelerator pedal. With my hazard lights on, I was able to drive closer to where I was meeting my wife and find a parking lot to turn into so a tow truck could get me. It was terrifying. I’m alive by some miracle and I’m very lucky I was meeting my family and they weren’t with me.

The ICCU on my car failed after hearing a loud pop (fuse blown) while driving on the freeway. This was an incredibly dangerous scenario in which I went from 70 mph to 25 mph, in an area with no shoulder. Hyundai is aware of the issues with the ICCU and I believe they should expand the recall to include EVERY Hyundai Ioniq 5 and 6. Interestingly, the technician at the dealership states in the summary of service that my car is subject to the recall due to the fault code (P1A9096). Why did I have to experience this failure to be subject to recall? My car should be subject to the recall/service based on VIN, but according to [XXX] it is not. Also at issue is the time it took to Hyundai's tech line to work with my dealership, and the time they are suggesting to provide replacement parts. My car was delivered via tow truck to the dealership at 11:16 AM on 12/11/2025 and I got the message regarding the diagnosis and solution to my car's issue on 12/19/2025 at 10:01 AM. It should not take 8 days to diagnose this issue, nor should it take 2 weeks for parts that are a known issue for Hyundai. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The vehicle was returned to me after a manufacturer-authorized high-voltage battery replacement that was completed on December 10, 2025. Immediately after pickup, the vehicle began exhibiting safety-related issues. I experienced abnormal and hard steering operation, repeated low coolant warnings, and battery management system (BMS) and electrical warning messages. These warning messages appeared immediately after the repair and before the vehicle was driven by me. I returned the vehicle to the dealership multiple times for the same issues. During the final visit, the dealership retained the vehicle for approximately 12 days. After this inspection period, I was informed that the vehicle had underbody damage affecting the coolant system and high-voltage battery and that the damage was likely caused by road debris. The issues began immediately after the battery replacement and involved safety-related systems including steering, coolant, and the high-voltage battery. The vehicle was returned with unresolved warning messages related to these systems. I am concerned that the vehicle was released after a major battery repair in an unsafe condition and that the affected systems may not have been properly inspected or repaired prior to release.

The ICCU failed while driving which left me with an undriveable vehicle on the side of the road. The vehicle was towed to the dealership and repaired; however, the part is the same and may fail again.

“While stopped at a red light my 2024 Hyundai IONIQ 5, the car moved forward slowly the brake pedal became completely unresponsive and would not slow or stop the vehicle. I had to turn off the engine to bring the car to a stop. This is a complete brake system failure on a vehicle with only approximately 10,000 miles that was purchased new on September 28, 2024. This is a critical safety defect that put myself and others at serious risk.”

While accelerating onto a road with cars approaching from behind, vehicle entered limp mode and was restricted to 25 MPH. I was forced to leave the roadway to avoid a collision with the vehicle behind. The street this occurred on has a speed limit of 40 MPH. The vehicle's normal acceleration was sufficient to ensure a safe gap to the approaching car, but the time it took to recognize and react to the unexpected behavior reduced this gap. The dealer diagnosed this as an ICCU failure related to safety recall 272. All prior recalls were complete at the time of the incident.

The vehicle is less than 1 years old. Had 91% charge left. Turned in the car as usual. Turned in heated seats and heated steering wheel as the outside temp was 34 degrees. A pop noise occurred and my entire dashboard flashed like a Christmas tree saying electrical system failure. Pull over safety. The cars speed was reduced to 20 mph. This was extremely scary as this happened on a main road where the speed limit was 55. The ICCU failed according to the dealer. This has been a common issue among Ioniq5 cars and the manufacturer has failed to fixed this issue. This car presents a high failure rate of the ICCU computer that controls the entire car. Once this chip fails, the car can not be driven and it must be towed back to the dealership. This is not a one off. Hyundai also quietly remove the remote start feature to activate the heated seats. They must know that turning on the heated seats might trigger an overload causing possible risk of iccu failure.

On November 21, 2025, while driving at approximately 60 mph and with approximately 15,685 miles on the vehicle, my 2024 Hyundai Ioniq 5 suddenly experienced a loss of automated systems including adaptive cruise control, lane keeping assist, and forward sensors. The failure occurred without warning. The following day, the 12V battery was completely dead and the vehicle required a jump start to operate. The vehicle was diagnosed with a failed ICCU (Integrated Charging Control Unit). The ICCU was replaced by the dealership on January 6, 2026, under warranty. There were no crashes or injuries as a result of this incident. The sudden loss of driver assistance systems at highway speed poses a significant safety risk, as drivers may be relying on these features and have no warning before they cut out.

The ICCU failed at 11,000 miles and 11 months into the lease. When the ICCU fails, the car becomes inoperable. This was a major safety hazard since it broke down on a major US highway and I was barely able to get off to the side of the road. This seems to be affecting a large number of Ioniq 5 and Ioniq 6 models.

While driving, heard a pop sounds from back seats. Then a warning appears on front screen : Check Electric Vehicle system. The car lost all power and stopped beside the road. The car has only 14K kms on it.

ICCU failure

When I started driving my car a warning to check the electrical system came on the display and the speed of the car dropped to less than 25 mph. The road we were driving on was over 45mph without a safe shoulder. After it was towed to the dealer, they diagnosed that the ICCU had failed and replaced it and a fuse. This was after all recalls and other software updates were performed many months ago.

Horn keeps breaking and doesn't work dealer said this is a known issue. This will be my second time replacing it when I schedule appt maybe water keeps getting inside it and ruining it? Please fix this it is a safety hazard

What component or system failed or malfunctioned, and is it available for inspection upon request? - It was ultimately diagnosed as an ICCU failure. The part is no longer in my possession. How was your safety or the safety of others put at risk? - Occurred on public street, fortunately a slow moving 25MPH speed limit several blocks from my workplace. I was able to limp the vehicle to a nearby parking lot and call for towing. Unfortunately, several hours later the vehicle was unable to be moved, leaving me stranded, and requiring it to be towed to local Hyundai dealership. I was ultimately without a vehicle for >1 week. Has the problem been reproduced or confirmed by a dealer or independent service center? - Yes, confirmed as ICCU failure. Additionally, my vehicle had the software update at the time that was supposed to fix / greatly decrease the rate of ICCU failures. I had no outstanding recalls on the vehicle. Vehicle was ~1 year old and had less than 12,000 miles on it. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? - Yes, at least local Hyundai dealership mechanics Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? - Initially the error message "stop vehicle and check power supply". The next day, that message, then a yellow turtle and "Power Limited"

ICCU failed while driving. This resulted in the vehicle going into limp mode while driving, cause the speed to slow dramatically and rendering it unable to be driven. Luckily, this happened close to home and I was able to get a tow truck to bring it to the dealership. Otherwise I would have been stranded. This problem is know, and was repair by Hyundai but there is no true fix as of yet, which continues to put drivers at risk. At the time of the failure the warning light "check vehicle electrical system" and "power limited" came on.

Hyundai is ignoring the fact that many Ioniq 5 have an ICCU defect that happens without warning and can leave you stranded with a bricked car that you can’t drive. They have a software recall for it that I had performed at the dealer. This did not solve the problem because it failed yesterday and I was stranded far from home. They continue to put this same part in the 2025 model. I have a 2024. Brand new cars are having the same problem which requires the whole unit to be replaced with the same unit that can go bad. I know people who it has happened to multiple times. They need to issue a recall that replaces the entire unit with a redesigned one. Not the same exact part. Everyone of these cars is a ticking time bomb that can leave a person stranded.

Potential Failure of Integrated Safety Systems: On modern vehicles, the telematics/infotainment unit is often integrated with other vehicle systems. This failure raises concerns about the reliability of connected safety features, such as automatic crash notification through the Bluelink system, stolen vehicle tracking, and emergency service button functionality. I cannot verify if these critical safety systems are operational, which compromises my sense of security and the vehicle's intended safety package. Remote Start Failure as an Environmental Safety Issue: While remote start is a convenience feature, its failure in extreme weather conditions (extreme heat or cold) forces me to enter an unsafe vehicle environment. In cold climates, this means driving with frosted windows and a cold, stiff cabin, impairing visibility and driver reaction time. In hot climates, it can lead to dangerously high interior temperatures before driving. A feature sold with the vehicle to mitigate these risks is inoperative. Uncertainty and System Integrity: The root cause of this total system failure is unknown, as Hyundai Motors has provided no diagnosis. This uncertainty about the stability of a core electronic control unit is, in itself, a safety concern, as it may indicate broader electrical or software vulnerabilities that could affect other vehicle functions. I first reported this issue to Hyundai on October 29, 2025, ticket number [XXX]. Despite multiple inquiries, I have received no substantive update, no diagnosis, and no estimated timeline for repair. The manufacturer has effectively stated they do not know what is wrong with my vehicle or how to fix it. This is an unacceptable failure to uphold the vehicle's warranty and address what I believe to be a safety-related defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The ICCU failed at approximately 14,000 miles. I was driving on a residential street and was able to park on the side of the road, so there was no danger, but the car became undriveable

The tubing that is used to connect the windshield washer reservoir to the nozzles that deliver the washer fluid to the windshield is prone to rodent activity. This tubing has been punctured by rodents twice now - with one intervening tube replacement. I have to replace the tubing again today. It has been less than two weeks since I last replaced the tubing. The replacement tubing was purchased from a Hyundai dealership. It appears that this will be an ongoing issue that will impact the operational safety of the vehicle.

Pop sound while driving. Lost ability to drive at normal speed. Was able to take car to repair shop and was informed of ICCU failure

On [XXX] at [XXX] Pacific Time , I was entering my garage when my vehicle had a surge of acceleration and went through thee wall seperating the garage from the kitchen. There wasn't any emergency braking , even with myself applying the brake , my vehicle refused to stop. My vehicle was totaled by Progressive Insurance .I am now furnishing the Progressive claims name and adjuster"s phone number: Grace Villard 440-910-6852. North Las Vegas Police Dept Accident report #[XXX] It was the Progressive Insurance aduster ,vehicle inspector who called me and told me there was a safety issue with my vehicle and declared it a total loss. Whatever aid you can avail me to I'd appreciate.. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ICCU failure, resulting in 12v discharge and complete immobilization of car. The car's safety systems gave sufficient warning to allow me to get somewhere safe -- but the nature of the failure also disabled it's ability to maintain a call with blulink to coordinate a pickup. Luckily my cell also had service.

The yellow airbag SRS critical safety restraint wire runs exposed and loose and drooping beneth the front seats with NO space between the harness and the floor (it could have been run above the seat plate or otherwise protected. Mine snagged on something and was torn from the terminal block and has disable the airbag. Hyundai denies it a defective design or assembly and had denied warranty coverage but wants $10,000 to enable it - $6,933 for the part - $3,000 labor. The driver seat moves back and forth automatically when entering and existing - there is no control of the movement and anything more than 1/2 high is able to become tangled and disable the airbag without warning. Hyundai via emails to their legal counsel as well as customer care is fully advised but has denied warranty status or other fix or accomadation. The warrenty for this car - for which coverage has been denied - is in full force per Hyundai's express terms. This is a critical safety issue which upon limited investagation effects numous ioniq5's of multiple years besides the 2024 limited. Note also the 2024 limited has a movable drivers seat foot rest which is prone to sweep matters under the seat when lowered.

The car was down to 16% charge on the battery so I put it on the 220 v charger at my house. The next day I went to leave and removed the charger from the car and started it. I heard a pop and thought the garbage truck doing weekly pickup had run over something but now I think it was a noise from the failed component. Got in the car and started it and saw a yellow circle with the words “check electrical system”; I had seen this error message once before following a software update to the ICCU back in September 2024 [turned the car off and back on and the error went away] so I did the same thing again but the error didn’t go away instead the circle warning on the screen went to a red circle and read “stop the car and check the electrical system”. Went inside the house and called the closest Hyundai dealership [in Longmont since the one in Boulder closed with no warning] and after some back and forth they told me to have the car towed in since the 12 v battery charging system wasn’t working and it controls many things like power steering and regeneration braking and can cause a loss of power making the car undriveable and unsafe. Towed the car in and got a diagnosis of a failed ICCU module. The part is on order and I have no idea when it might actually come in and get installed. Hyundai is aware of problems with the ICCU and 12 v charging system and has issued several software recalls; this ICCU problem is all over the Hyundai Ioniq 5 forums and is a widespread issue with the Ioniq 5. I’m lucky this failure occurred at my home versus when I was driving or many miles away or at night cuz I would have been stranded.

I was driving 10-15km/h over speed bump suddenly my car going backwards I took a glimpse on my display panel and it showed that the car was in D mode. This is seriously can cause accident!

I have a lease on a 2024 Hyundai Icoprniq 5. There is a recall due to ICCU issues. We had this car in service but it did not fix the issue. The car is now sitting dead in my driveway and will not move. Hyundai is refusing to do anything to fix the problem.

I was driving on a highway during traffic on June 17 2025 and my ioniq 5 car started to make weird sound. Then after a minute, it abruptly started to push back and forth and the noise became stronger. A couple of minutes later, the "Check electrical vehicle system" sign was displayed on the screen. I pulled over due to the scare and turned off the car. A minute later, turned ON the car and drove. Same exact thing happened a day before too. This has not happened before since I got the car in Dec 2024. Car's battery was at 82%.

The car made a loud popping noise and immediately started displaying electrical system fault errors. The car propulsion stopped within 15 seconds and was not able to be moved after. I was on the freeway and just barely made it over to the side. Car was not able to be towed by a regular tow truck because the electrical system was gone and the car was not able to be shifted into neutral. Jump starting the battery did nothing. Car was sent to the dealer who confirmed that the car sustained an ICCU failure which controls the entire battery electric system. The ICCU had to be replaced. There is already a mandatory recall on the vehicle regarding the ICCU. The recall was to check the status and confirm that the ICCU was working properly and in good condition. I had this recall done BEFORE the ICCU failed, so even though the recall check was performed, the ICCU still failed and put me in a very dangerous situation. The car is 6 months old and has 6200 miles on the odometer.

While backing into my driveway if a car passes in front on the street my car will not continue backing up. This also happens in parking lots. While backing out of my driveway onto the street and staying in the lane closest to the driveway, traffic in the far lane will cause the car to stop moving even though the street is more than wide enough to accommodate both cars without crossing the double yellow lines. As I live on a busy street this can cause an accident. In both cases turning off the parkin sensors with the dashboard button has no effect.

Dear NHTSA, On [XXX] at [XXX] CST, my 2024 Hyundai Ioniq 5 SEL experienced a sudden ICCU failure. While reversing into my driveway, I heard a loud “pop,” followed by warning messages: “Stop vehicle and check power supply” and “Check electric vehicle system.” A DTC scan showed code P1A90(96). The car became inoperable and had to be towed to a Hyundai dealership. The dealer confirmed ICCU failure and replaced both the ICCU and fuse on 6/17/2025. However, the replacement was not a redesigned part—it was the same model that failed. I purchased this vehicle in March 2025 as a Certified Pre-Owned with ~12,000 miles. All recall-related ICCU updates had been completed before this incident. There were no warning signs before the failure. This failure could have been dangerous had it occurred on a highway, in extreme weather, or far from help with my [XXX] daughter with me. I no longer feel safe driving this car. Hyundai’s recall remedy is clearly not effective, and they continue replacing defective ICCUs with the same flawed units. They have not disclosed the root cause or implemented a permanent fix. I urge NHTSA to: Investigate ongoing ICCU failures despite recall compliance. Mandate a stop-sale of affected vehicles until a real fix is found. Require Hyundai to disclose the root cause. Consider a buyback program if no safe solution is available. This is a serious safety risk. These failures will continue without regulatory action. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Got a “check electrical system” alert and then a “stop vehicle and check power supply” and “12V battery voltage low. Stop safely” before my car completely turned off. This started on May 30 and June 2nd 2025. Car was towed to the dealer and pending diagnostics.

I am the owner of a 2024 Hyundai Ioniq 5 with Vehicle Identification Number [XXX] I purchased/leased this vehicle on [XXX] from Stockton Hyundai. Over the last couple of months my vehicle has experienced an ongoing charging defect: it only charges on Level 1 but fails to charge properly using Level 2 or DC fast chargers, which significantly impairs its use, value, and convenience — a key feature advertised for this vehicle. The issue has not been confirmed by the dealer as they have not been able to figure out why it’s happening and the vehicle has not been inspected by anyone else I also feel like it’s a safety risk because I’m at risk of being stranded. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Vehicle lost power on a two lane highway with a 55mph speed limit, which increased the risk of an accident. Warning lights appeared after the failure occurred; essentially giving the driver little to no warning. The vehicle kept slowing down to 30-25 mph, but fortunately close enough to home and was able to slowly roll into the garage. The vehicle was towed to the dealership and will take 2 months for the ICCU and ICCU fuse to be replaced due to backordered parts. This occurred after an ICCU update was done in 12/24.

I had ICCU software recall done in spring 2025 then Vehicle died twice while driving on highway, ...suddenly. "warning 12 volt batt low pull over" stranding my family twice on highway. could not operate anything. Mc Govern Hyundai said it was fixed after 44 days. 2 days later failed again .dealer said it was ok again but would not replace ICCU or 12v batt. the amber light that indicates when !2v batt. is being charged would never come on. they said they found nothing wrong.

Multiple 12v batteries, the battery management system, and ICCU have all failed on my Ioniq 5. During my 13-month lease, this vehicle has been inoperable for more than 30 cumulative days due to the same recurring defect. The vehicle was taken to an authorized Hyundai dealership multiple times, but the defect was repeatedly misdiagnosed and not corrected, resulting in continued failures and extended loss of use. The defect causes sudden loss of power and complete vehicle shutdown, including the inability to restart the vehicle. If this occurs while driving, it creates a serious safety hazard by eliminating propulsion, power-assisted steering, and braking assistance. The vehicle may become disabled in traffic or at intersections, increasing the risk of a collision, injury, or stranding occupants in unsafe conditions.

On Monday May 12, 2025, while driving my Ioniq5 (2024) several warnings appeared concerning the EV electrical system. One warning dealt with 12 volt battery issue and other warning alerted the entire vehicle's electrical system was failing with instruction to stop driving vehicle immediately. I was out of town and my car was towed to local hyundai dealership. The problem appears to be a faulty ICCU component and parts have been ordered. Having my brand new EV turn off in traffic is scary and this experience has been frustrating and nerve wrecking. Knowing Hyundai was aware of this problem makes it even worse.

While driving the car on the highway at about 50 mph, the driver side door unlatched and opened.

There were no dash warnings. The car slowed to 20MPH and then stopped just as we were about to pull onto a busy freeway. The dash stayed on and then went blank while I waited for the tow truck to take it back to the dealer. The tow truck driver was unable to move the car without jumping the dead battery to get the car to pull up the tow truck ramp. We were told it was an ICCU failure. The car was in the Hyundai dealer for replacement of the ICCU unit for approximately 10 days.