2022 Hyundai Tucson Hybrid

The contact owns a 2022 Hyundai Tucson. The contact stated that while driving 5 MPH, the brake pedal was depressed; however, the vehicle failed to stop. The contact stated that the vehicle independently accelerated. The contact stated that the brake pedal was depressed with force and the vehicle came to a stop. The failure occurred intermittently at first but became a persistent failure. The dealer was contacted by phone and made aware of the failure. The failure mileage was approximately 17,000.

My vehicle suffered a disabling failure 325 miles from home due to an open Safety Recall campaign. The vehicle is repaired under Campaign Claim #43195279, but Hyundai Corporate is actively denying both a reunite transport tow and travel rental accommodations to retrieve the vehicle. The manufacturer is failing to provide a reasonable or accessible remedy, leaving me completely carless at home for 3 days due to an admitted safety defect with no way to retrieve my vehicle 325 miles from home.

System/Component Failed & Inspection: The vehicle suffers from recurring failures across the engine, powertrain, electronic throttle control, and exhaust gas recirculation (EGR) control systems (DTCs P0524, P0642, P2118, P022100). The vehicle is fully available for inspection upon request. Safety Risk: While driving, the vehicle suffered a complete, sudden loss of motive power on an active highway entrance ramp. The engine stalled in moving traffic with zero throttle response, creating an immediate collision hazard before requiring a tow. Confirmation by Dealer: Technicians formally confirmed these defect patterns. In May 2026, diagnostics logged major engine and emission/EGR control codes, but corporate refused goodwill repair. In August 2026, the highway stall recurred. Diagnostics confirmed active low oil pressure and throttle failure codes, which the dealer resolved by applying 4 factory ECU software updates under TSB 25-01-010H. Service personnel explicitly confirmed these engine control issues are manufacturing defects, not wear-and-tear or mileage-related. Inspections: Inspected, diagnosed, and serviced by authorized dealership service department technicians during both the May and August 2026 failure events. Warning Symptoms & History: Engine issues began at 341 miles when purchased new (settled). In May 2026, check engine lights returned with diagnostic codes for engine and EGR/emissions systems. In August 2026, total power loss occurred, preceded by check engine, fo

While driving my 2022 Hyundai Tucson Hybrid, the vehicle suddenly lost power, began shaking, and all warning lights illuminated at once. The car would not accelerate properly and became unsafe to operate in traffic. After pulling over and restarting the vehicle, the warnings cleared, but the issue has occurred more than once. It first occurred 3/25/26. The dealer was not able to reproduce the issue but found numerous faults and reset them. This is a serious safety concern because the vehicle can unexpectedly lose motor power while driving, creating a risk of collision. The problem is intermittent and unpredictable.

I am reporting a critical Exhaust Gas Recirculation (EGR) valve and electrical circuit failure on my 2022 Hyundai Tucson Hybrid. The failure resulted in the check engine light illuminating, diagnostic codes identifying an EGR system malfunction, and visible corrosion found within the EGR connector and extension harness. This component breakdown causes severe performance risks, risk of sudden loss of engine power, and compromises vehicle safety. Diagnostic & Technical Details: Error Codes Captured: Diagnostic trouble codes in the P0400 series (EGR system flow/circuit malfunction) along with connector/wiring degradation were confirmed during inspection. Root Cause & Symptoms: The failure stems from degradation and electrical shorting risks in the EGR valve assembly and its immediate wiring harness connection. Manufacturer Response & Escalation Denial: When addressing this failure, I discovered that Hyundai has acknowledged widespread EGR valve assembly defects, electrical short risks, and solder flux contamination issues across multiple model years and production lines (such as NHTSA Campaign 24V-308 and subsequent service campaigns like 9B3). However, Hyundai restricts safety recall and warranty coverage strictly based on narrow VIN manufacturing parameters, leaving owners with identical, failing hardware to shoulder exorbitant out-of-pocket repair costs—in my case, quoted at over $2,013. Because a compromised EGR system and corroded electrical harness can cause sudden engine

On XXX the vehicle lost motive power while my wife was accelerating to merge onto a highway with our two young children aboard. It would not accelerate and she was forced to pull over in an active merge area. Simultaneous warnings illuminated: Electronic Parking Brake, ESC, Forward Collision Avoidance, Blind Spot Detection, and hybrid system, with "Check Hybrid System" displayed. No crash or injury occurred, but loss of propulsion during a highway merge created serious collision risk. This is a recurring defect documented since early 2023: Hyundai's own Blue Link telematics auto-flagged an Engine Control System DTC on XXX; a jump-start was required XXX (dealer RO #XXX); check engine light and stored CAN-bus codes U100387, U100100, U004600, U010100 on 08/10/2023 (RO #XXX); and a September 2023 incident in which the center display shut off during reverse, disabling the backup camera. Hyundai performed Service Campaign 9B4 (BMS software update, DTC P1BB20, TSB 25-01-010H-1) on this VIN on XXX; the same failure category recurred 84 days later. The vehicle was towed to Safford Hyundai of [XXX] onXXX and has remained there 65+ consecutive days. The dealer replaced the 12V battery (defect persisted) and the Hybrid Power Control Unit (HPCU); per Hyundai Consumer Affairs' own written email ofXXX, the check engine light returned after the HPCU replacement and the cause "remains unidentified." The dealer states it cannot determine the root cause. The vehicle IS available for inspection

This is the 4th time that a new fuel pump has been replaced on this 2022 Hyundai Tucson hybrid. I think the car part needs a recall because the fuel pump keeps breaking.

The contact owns a 2022 Hyundai Tucson. The contact stated that while driving, after an hour, the vehicle was shaking and shuddering abnormally and the vehicle lost motive power. The driver was unable to maintain a steady speed while driving the vehicle. The vehicle was making an abnormal sound while driving at 60 MPH, and the vehicle was struggling to accelerate. There were no warning lights illuminated. The blue link indicated that the failure was associated with DTC: P03600. The vehicle was taken to the local dealer, who was unable to retrieve a diagnostic trouble code. The vehicle was diagnosed as needing the fluid, tires, and brakes to be changed, and the low jack to be removed. The vehicle was not repaired. Another local dealer, Napleton Hyundai (4333 W Ogden Ave, Aurora, IL 60504) was contacted, but there was no response. The manufacturer was contacted, and a case was opened. The failure mileage was approximately 48,000.

My 2025 Mazda CX-5 has an intermittent defect that causes Android phones connected to Android Auto through the vehicle's USB-C port to unexpectedly perform a complete device reboot while the vehicle is being driven. The problem began in August 2025 after I purchased a Google Pixel 9. I initially believed the phone was defective and spent several months troubleshooting the phone. After the same problem occurred with my son's Google Pixel 10, I determined the issue was not phone-specific. I reported the problem to Mastria Mazda in March/April 2026 and returned again in May 2026. I opened a case with Mazda Customer Experience on June 4, 2026. The vehicle software has been updated, but the defect remains. The failure is random. It does not occur immediately after connecting the phone and is not associated with navigation, music, phone calls, messaging, or trip duration. It can occur once during a trip or multiple times during the same trip. The defect has been reproduced with two different phones (Google Pixel 9 and Pixel 10) using multiple USB-C cables. The same phones were then tested using wired Android Auto in another 2025 Mazda CX-5 (loaner driven for one week), a Mazda3, a Mazda CX-90, and a Tesla. The problem did not occur in any of those vehicles. My Pixel 9 also works normally in my vehicle when using wireless Android Auto. The reboots occur only through the wired USB-C Android Auto connection in my vehicle. This creates a safety hazard because Android Auto immediately d

WIPERS STOP WORKING. THEY WILL FREEZE AND STOP MOVING ACROSS THE WINDSHIELD. SO FAR I CAN FIX THE PROBLEM BY TURNING THE WIPERS OFF AND THEN BACK ON. MY CONCERN IS THAT MAY NOT WORK IN THE FUTURE. ALSO, IN HEAVY RAIN AN ACCIDENT MAY HAPPEN BEFORE I CAN RESTART THE WIPERS. I BROUGHT THE CAR IN TO THE DEALERSHIP, BUT THEY COULD NOT FIND ANYTHING WRONG.

The issue involves the vehicle’s drivetrain and hybrid/electronic control system, where the car suddenly jerked forward in stop-and-go traffic on the freeway as if it had been struck from behind. Immediately following this event, the vehicle would not accelerate beyond approximately 40 mph, indicating a loss of normal power. This created a significant safety risk, as the sudden jerking could have led to a rear-end collision, and the inability to accelerate properly made it difficult to keep up with traffic on the freeway. I was barely able to safely pull off the freeway while surrounding traffic continued at higher speeds, increasing the risk to myself and other drivers. The problem appeared to resolve after turning the vehicle off and then back on; however, this raises concern about intermittent failure. The vehicle was taken to a dealership for inspection, but they were unable to reproduce or identify the issue. The vehicle remains available for inspection upon request. The vehicle has been inspected by a dealer but not by the manufacturer, police, or insurance representatives. Prior to the failure, there were no warning lights, messages, or noticeable symptoms indicating an issue. Based on similar reported experiences, this event may be consistent with a “limp mode” condition or a malfunction in the transition between the electric motor and gasoline engine, potentially involving the transmission or hybrid control system.

Car is a Gas Hybrid (not plugin). 3 occurrences over the last couple of months. Car emits a warning sound and a message on the dash says "Check Hybrid System. Stop Safely". Basically right after this message the car starts losing power and stops. Doesn't matter if on freeway or not. You need to find a place to pull over or you stop traffic wherever you are. Looks like Hybrid Battery is completely drained. Can not be re-created. Dealer has it now for the 3rd time. Dealer in the past have not been able to find cause/cure since this issue is not posting any errors to the onboard diagnostic system. Temporary 'fix' is to power off car, and power back on. Looks like this is a 'known' issue though as its being reported by quite a few people online.

Repeat Repair Timeline – Loss of Acceleration Vehicle: 2022 Hyundai Tucson Hybrid Blue Issue: Intermittent loss of acceleration from a complete stop (safety concern) Occurrence 1 Approx. Date: 12/2025 Mileage: ~ 48000 Description: Vehicle failed to accelerate immediately after a complete stop. Pressed accelerator and experienced a noticeable delay before the vehicle moved. No warning lights. Turned on and off. Restarted normal. Action Taken: No service visit at this time. Occurrence 2 Approx. Date: 01/2025 Mileage: 12/2025 Description: Same issue occurred again from a complete stop. Delay in acceleration while entering traffic. No dashboard warnings. Action Taken: Issue noted for future service visit. Occurrence 3 (Reported to Dealership) Date: 50,000-mile service 01/14/2025 Mileage: ~50,000 miles Description: Loss of acceleration from a stop occurred multiple times prior to this visit. I informed the dealership that this was a very dangerous safety issue. Dealership Response: Vehicle was serviced as part of the 50,000-mile maintenance. Dealership stated they could not find anything wrong. No specific repair or explanation provided. Outcome: Issue was not resolved. Occurrence 4 (Post-Service) Date: January 28, 2026 Mileage: ~55,999 miles Description: After coming to a complete stop, I pressed the accelerator and the vehicle did not respond for several seconds. No warning lights or alerts. This occurred after the dealership stated no issue was found. This condition has resulte

Speed control on steering wheel not responding all the time. When car is on cruise control speed instead or decrease control not responding all the time. I was almost going to hit the vehicle on high way i decreased the speed according to front of my car but controller not responding speed didn't decreased I suddenly realized that slammed on break. Nothing was happened i already sent email to hyundai but no respond. I looks defective controller switch. Now other side of steering volume control switch also becomes loose

I’ve experienced repeated electrical and mechanical issues with my 2022 Hyundai Tucson Hybrid. These include full battery drainage without engine activation (leaving me stranded), multiple warning lights, and recently a heater failure that remains unresolved. I’ve had over 8 service visits in two years, and Hyundai has not responded to my formal letter. A detailed timeline is available if needed.

While driving the engine would not turn on and we were stuck EV MODE. Lost power , had to pull off to shoulder of road and had to turn vehicle off and back on in order for car to move.

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)

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.

Gas cap won’t open

The blind spot warning went off and locked all the brakes up. We were not able to move the vehicle and could not even pull off the road out of traffic. There is no way to disable the brakes when the computer or sensors are malfunctioning. We had to get the vehicle towed.

The car has had a check engine light on for a week. It sometimes jolts forward when pressing on the accelerator and it does it all of a sudden. Took it to the Hyundai dealership they say it’s due to the egr valve and sub harness.

I wasn’t even allowed to select all the issues I’ve had with this vehicle since day of purchase three years ago June, and upon picking up the car I have had issues. My leather seats have bubbled up. My car will not merge. It will suddenly accelerate my car drops down in the middle of the road. My moonroof opens on its own. My car windows were randomly roll down on its own. My car breaks itself. My car emergency brake won’t unhook my car. Every single light is now on it. They have attempted to fix numerous times and my life has been put in jeopardy and my child’s life numerous times. No one can fix this issue. I am now told her I will have to wait three weeks for a rental because everyone’s backed up in diagnosing these cars. This car is going to kill me in my child and is a safety hazard. It does this stuff with lights on and without and it’s random and no warning my EV warning has come on my brake system. Warning has come on my car has been unable to stop and coasted and suddenly was able to then stop.

This relates to an Intermittent Braking Anomaly that started occurring within 1 year of this Hyundai Tucson Hybrid Ltd. purchased "New" in Aug. 2022. The 1st Service Invoices (Jun23 & Dec23) only reflected "Customer Requests Complimentary Maintenance Plan Tire Rotation," but did not reflect the braking anomaly; eventhough the braking anomaly was discussed with the Service Advisor at those times. There have been at least 7 Service Appointments that this braking anomaly was identified by the vehicle Owners to the Service Advisor. This has been, and is, an intermittent anomaly/problem that occurs most often when slowing down to stop, and especially when going downhill. There is a very noticeable "Shaking/Shuddering/Pulsating" recognized by the Driver, and when present, Passenger(s) also. On average, this occurs 1x/week , and inconsistent. One time it started pulling left towards oncoming traffic. Another time it was violent shaking, and almost unable to stop at stop sign. The Dealership 1st attempted to repair this by refacing front rotors in 2024. This did not fix the anomaly. In Dec 2024, returned to the Dealership, and a Tech. was able to duplicate the braking anomaly. With that, they then replaced both Front Rotors (51712-L1100 Disk) and Brake Pads (58101-P0A011 Pad Kit) in Jan. 2025. The braking anomaly continued later that very same day the Front Rotors and Brake Pads were replaced! Returned to the Dealership the next day and discussed this braking anomaly with the Service

- Component that Failed: The Panoramic Sunroof (glass side that opens) - Safety Risk: Glass shattering above your head while driving, tons of glass falling below to the driver & passengers in the car | Shock of a loud gunshot while driving - causes wrecks - Vehicle Inspected: Currently at Hyundai, figuring out what to do - Warning signs: ABOLSUTLEY NONE - spontaneous explosion My husband, two friends, and I were traveling down the interstate at 55 mph, we heard a loud bang (like the sound of a gunshot)! Our panoramic sunroof sunshade was pulled back with the sunroof closed. Instantly, the sunroof exploded into a million tiny pieces of glass that partially rained down on our heads and shoulders and all over the rest of our car. It was quite a startling sound. There was a hole about 10 inches across in the sunroof and more pieces were continuing to fall out. To protect our heads, I closed the sunshade. Then, we could hear pieces hitting the shade and glass falling behind us on the road. Once we got home, the hole became much larger.

The contact owned a 2012 Kia Optima. The contact stated while driving 65 MPH, the vehicle lost motive power and was driving slowly. There was no warning light illuminated. The vehicle was taken to the dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that the failure persisted. The contact stated that recently, while driving 65 MPH, the vehicle lost motive power and stalled with an unknown message displayed. The contact was helped over to the side of the road. The vehicle was restarted. The manufacturer was made aware of the failure. The failure mileage was approximately 20,000.

1. What component or system failed or malfunctioned, and is it available for inspection upon request? The hybrid powertrain system, transmission, or engine appears to be malfunctioning. The vehicle hesitates or stalls when pressing the gas, losing power as if it doesn’t recognize when to transition between EV and gas mode. Yes, the vehicle is available for inspection upon request. 2. How was your safety or the safety of others put at risk? The issue caused the vehicle to lose power unexpectedly, particularly while driving at highway speeds, which forced me to pull over multiple times for safety reasons. This happened on [XXX] before the [XXX] Tunnel, creating a hazardous situation in heavy traffic. If the vehicle stalled at the wrong moment—such as in an intersection or while merging—it could significantly increase the risk of a crash. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? No. I have taken the vehicle to a Hyundai dealership, but no official errors or diagnostic trouble codes (DTCs) have been detected. The dealership has not confirmed the issue unless I agree to high-cost diagnostics that may not guarantee a resolution. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle has been looked at by a Hyundai dealership, but no official findings or resolutions have been provided. The issue persists, and no recall or technical service bulletin (TSB) has been

Hyundai has a service bulletin for their 12V battery but isn’t notifying owners. Today my vehicle stopped working and lost all acceleration on a busy 3 lane street that is 55mph. I was able to limp it to a left turn lane where I had to research the issue and found many others had instances like mine. The battery stops working and subsequently stops the vehicle from accelerating and tells you to ‘stop safely’ with no warning or indication that you’re about to stop moving on a road.

This problem has happened 4 times in the last two months. After about 15 minutes of either moving very slowly, or being parked and idling, the engine does not start when the gas pedal is pressed. The car accelerates as normal since it is in EV mode, giving the driver the impression the car is operating properly. After driving around 1/4 mile the car loses drive power very quickly - full speed to zero in several seconds - because the car is in EV (battery) mode only. This sudden loss of power twice occurred in traffic, which increased the risk of an accident. Fortunately the car was not running at highway speeds and the car was pulled over safely despite the traffic. After the car lost all drive power, the warning “check hybrid system“ appeared on the instrument cluster. There were no warning lamps, messages or other symptoms prior to the problem occurring. Twice a dealer was unable to reproduce or confirm this problem. An independent service center also could not reproduce or confirm this problem. The vehicle is available for inspection, but has not been inspected other than the dealer and the service center.

12-volt battery dead after 5 days sitting in garage without starting the car. As a result, the doors could not be opened without removing the cap covering the door keyhole. This cover was very difficult to remove and required roadside assistance. The dealer service department advised on 10/28/24 that the battery required replacement but that no batteries were available. The dealer service department advised that procuring a replacement 12-volt battery would take 1 to 3 months. The car is in the possession of the dealer service department and cannot be driven as of today, 11/23/24.

While driving down interstate, the panoramic sunroof panel above the driver and front seat passenger spontaneously exploded and shattered. This occurred on a clear sunny morning and there were no other vehicles on the road in the area at the time.

After dark, the headlights will randomly switch from auto to parking lights to headlights on or completely off. When using the selector sometimes takes a few seconds to switch from auto to off and sometimes won’t switch off. This just started three days ago. It happens while it’s parked and while driving the lights will shut off. You can use the switch to turn them on but both auto and off take a while to be selected.

A week ago, I was driving my 2022 Tucson Hybrid Limited on the highway on my way to work around 7:50 a.m. It was a bright day, good weather. I was in the center lane when my car suddenly braked HARD and came to a stop on the highway! My foot was still on the gas pedal, but the Automatic Emergency Braking light was on. I panicked because I had no control over what the car was doing. Thankfully, I was not rear-ended and didn't cause an accident. I put on my hazard lights, shifted into park on the highway's center lane, then back into drive and it seemed fine. There was not really any traffic in front of me that I remember, but there were some cars on either side and behind me that had to swerve around me. I don't trust this car anymore. It is going to get me or someone else killed. I took it to the dealer 2 days ago and the initial inspection didn't show any problems or error codes. They told me I could have it back since there didn't seem to be a problem or they could give me a loaner car and keep testing my car. I have a loaner. I hope they find something wrong with the car, otherwise, I am afraid of my car getting me or someone else killed. I am especially scared after reading about all the others here who have had this same issue.

The check hybrid system light came on just after I tried to accelerate from a complete stop and I had no acceleration. I had the accelerator pushed to the floor and I got no response and was not able to accelerate two different times within 5 minutes of one another. I was in traffic unable to accelerate. I took it to the dealer and they were unable to find anything wrong and told me to bring it back if it happened again.

On August 1st I was on the highway at 55 mph when my 2022 Hyundai Tucson decelerated to 20 mph and would not go faster. This occurred on the highway at 5:45 pm. This placed myself and others in danger as I was on the highway in the center lane at the time of the deceleration. After turning the car in, the dealership returned the car with no repairs but stating that I engaged a button that caused a limit to the car's speed. I didn't understand but took their word. I drove it from the dealership to the store and home. The very next morning while taking my grandson to school at 5:15 am the car decelerated from 45 to 20 mph with my grandson inside the car. This placed myself and a family member in danger along with cars around me. Each time I had to drive to the dealership in unsafe conditions. They stated that I was not engaging the brake enough to charge the battery. I do not know of ANY documentation stating the number of times the brake must be engaged per drive. I have never heard of such engineering that allows a car to only go 20 mph and create a hazard for the occupants unknowingly. The dealership has stated that refuse to fix the problem but I should engage the brakes more often when I drive. The car has spent several months in their care due to continued repairs over the time that I've had it and is currently their because of the engine light being on.

The Tucson Hybrid has died on the highway multiple times. Seems to happen on long drives the dealer has not reproduced this yet but my car has been at the shop for over 60 days. Car will stop accelerating even when gas pedal is pressed to the floor. Does not seem to be switching from battery power to gas power. No warning messages. First started in April.

On multiple events brakes would not come to a full and complete stop. Many close calls of not being able to stop quickly on the highway or going down hill. The problem has been reproduced by the dealership. No warning messaging.

Engine failed to switch out of battery power and loses power on the highway. This has happened on two different days the first time I had 58,000 mile the second time after Hyundai said it had been repaired the car has 65,000 mile. Both times my car went from 60 mph to 30 mph quickly. The last time I was in a construction zone and unable to get off the road and was only driving at 10 mph on a very busy highway. The car has been at the Hyundai shop since June. No there were no warning lamps, or messages.

The contact owns a 2022 Hyundai Tucson equipped with Michelin Tires, Tire Line: Primacy A/S Acoustic. Tire Size: 235/55/R19, DOT Number: (N/A). The contact stated that while driving at slow speeds, the vehicle began to wobble erratically, prompting the contact to pull over to the shoulder of the roadway. No warning lights were illuminated. The vehicle was taken to the dealer, who determined that the steel belts had separated from the tire wall on the front tires. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The tires were original equipment. The failure mileage was 20,000.

The contact owns a 2022 Hyundai Tucson Hybrid. The contact stated while driving approximately 15 MPH, the accelerator pedal was depressed; however, the gasoline motor failed to activate. The contact stated that the vehicle remained in EV mode and was not gaining forward momentum. The contact observed that the battery gauge needle was on the low end of the battery charge. The contact stated that the "PHEV battery assist lock" was illuminated. The contact stopped the vehicle turned off and restarted the vehicle and the normal engine function returned. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed and was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 68,000.

While driving over 50 mph the emergency brake has initiated 3 times in a 4 month period. There are no cars in front of my vehicle and it is not the collision warning but it will flash on the dash the the emergency brake is engaged in red, it will make a warning beeping noise and the car will brake on its own.

Car lunched from a traveling in traffic 50+ mph to 39 mph and then had to push the pedal to the floor to get it off the highway and on the side during 5 o'clock traffic. Said something about the hybrid battery and went dead. Dealer has had it for 11 days and still can't get it started. Apparently there are THREE batteries in relation to this hybrid and all 3 don't work and never seen this before. Since it's been at the dealer, hyundai has emailed me no less than 3 times that I need to check my lights because my battery is getting low all the while it has been completely dead and they don't even know it. Suffice to say, there was NO WARNING other than a couple of miles prior, my car lunched down to the 39 mph and I lunged on the gas and it picked back up again but it wouldn't do it a 2d time. They obviously still don't know about the vehicle being so dead 2 different tow trucks had to be called because even the tires were locked up. Just still receiving my messages I need to check my lights because my battery (NOT BATTERIES MULTIPLE) is low and it's not low, THEYRE ALL 3 DEAD. I was in a dangerous situation and always felt safe in a 2 yr old car with a full tank and hybrid battery backup and less than. 20k miles. IF EVER FIXED because service may have to send OUT OF STATE I will never buy a hyandai or hybrid again. The entire battery system broke down. Which killed the entire electrical system which now no one knows how to fix

The hybrid system flashes "Check Hybrid System" then the check engine and check HEV lights are illuminated. The vehicle loses power and even with the gas pedal pushed firmly to the floor the engine isn't producing power. This is a safety issue because I've lost power while driving on busy roads and can't clear the intersection, etc. This was reproduced at the dealership and Hyundai is performing a warranty replacement of the "hybrid system". I wanted to make NHTSA aware of the issue because on the Hyundai forums I'm seeing similar reports made. There is an open campaign to update the software for the hybrid system, 9B4, but this software update did not fix the issue.

Driving down highway going about 65 miles an hour no hazards in front or behind me suddenly Red flash emergency breaking lights and car slammed On brakes resolved on its own in about 3 seconds but could have caused an accident

While driving, my vehicle suddenly lost all power and didn't respond to the accelerator. The "check engine" and "hybrid system failure" lights came on, jeopardizing my safety and that of other road users. The car overheats significantly, to the extent that the air conditioning only blows hot air. This situation forced me to pull over on the highway shoulder, creating an additional risk for everyone involved in traffic.

While driving on busy highway the vehicle would not accelerate even with more gas applied. Gave warning to check hybrid system and pull to safety. Vehicle wouldn’t turn off after pulling over and in park with flashers on. Various warning lights all came on, gave message of battery discharge warning, check brakes, check ABS, check brakes then everything complete shut off including hazard lights. Wouldn’t start after that until jumped by tow driver. This is the second time this occurred, first time being within the first year after purchase.

The contact owns a 2022 Hyundai Tucson. The contact stated while attempting to drive through a yellow light, the vehicle failed to accelerate upon the depression of the accelerator pedal without warning. The same failure occurred soon after while on a highway ramp. The contact attempted to merge onto the highway, but the vehicle failed to accelerate with the accelerator pedal depressed to the floorboard. The contact pulled off to the shoulder of the highway and restarted the vehicle; the vehicle resumed normal operation after the engine restart. The dealer was notified of the failure and an appointment was made to have the vehicle serviced. The manufacturer was also notified of the failure. The vehicle was not repaired. The failure mileage was 32,340.

On a clear day in December 2023 the sunroof on my 2022 Hyundai Tucson Hybrid 4d 4wd exploded. There was an incredibly loud bang while driving along Hwy [XXX] outside Wausau, Wisconsin. I had the inside of the sunshade closed. I pulled over at the next exit. It was a beautiful clear day. I drove back to town to the dealer I purchased the vehicle from. They said they had never heard of this happening. Our insurance agent told my husband she had dealt with the same issue 3 weeks earlier. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Driving at night when it snows is unsafe. The forward collision warning sensor is covered with snow within minutes and so are the headlights. They are placed in the front bumper and covered with snow because by their design they are not flush with the bumper. They are sitting deep within the bumper which creates a trap for snow and slush. I hade to stop every few minutes to clean the headlights from snow because they were covered and I couldn’t see anything in front. It’s a design flaw.

I was driving at highway speed on the interstate and first heard a loud pop that sounded like something striking the windshield. Just a few minutes later, the sunroof shattered and sent glass fragments raining down on both me and my passenger.

Nexen Rodian GTX 235-65-R17 DOT 1UA9Y BMER 2822; 1UA9Y AACL 2822; 1UA9Y BAKL 2822; 1UA9Y I purchased a new 2022 Hyundai Tucson Hybrid Blue on October 29, 2022. I bought it right off the truck, no miles on it. Since owning this, I've completed all set maintenance, as required and recommended, including tire rotations (maintenance records attached). I just went over 24K miles, and at my 24K mile service, the Hyundai dealer told me I needed new tires. Tires that don't even last 25K miles can be very dangerous and this quality is unacceptable. Tires are available to be inspected. Safety was put at risk by having tires that deteriorated so quickly that I could have an accident without realizing I was even at risk. I've never had a need to check my tread depth at 24k miles before. Especially coming into winter, this could've caused a serious accident. Tires were inspected by dealer and routine service inspection. No warning of this prior to being told at the dealer. I contacted Nexen about a warranty and was told they don't warrant those tires for a specific mileage. They special lower quality and mileage tires are sold to the car manufactures for new vehicles. If this is the case, then car dealers need to tell buyers this upfront or someone is going to have a serious accident not knowing their tires are shot when they've barely had the car a year. I believe Nexen's tire quality should be looked into and would like to submit a claim. It was on all four tires. I have supporting docu