What 266 owners told NHTSA about the 2025 Hyundai Tucson Fuel Cell

The automatic emergency braking system activated early and aggressively causing a rear end collision. It is available for inspection upon request. While driving in busy traffic on a highway I was lightly braking to avoid sudden stops or unexpected movements of the vehicle while traveling between 20-30 mph. The vehicle then activated the emergency braking system and came to a sudden and unexpected complete stop. This sudden stoppage caused myself and my passenger to be thrown forward harshly against the seatbelts. Additionally I was unable to steer the vehicle towards the side of the road as the wheel had locked and avoid an SUV that was rapidly approaching my rear. This SUV subsequently rear ended me. The actual collision was minor thankfully due to the low speed of the traffic, but could have been much more severe if traffic conditions had been different. Has the problem been reproduced or confirmed by a dealer or independent service center? Not yet. (I am in the process of this right now, but because my car was in a collision the dealer will not fix the recall or inspect the vehicle until the collision damage is fixed) Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? See previous answer Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? The vehicle had not exhibited any issues prior to this sudden stopping.

NHTSA ODI 11749404

The contact owns a 2025 Hyundai Tucson. While the contact’s son was driving approximately 55 MPH on a three-lane highway, the brakes locked up. While attempting to move the vehicle to the shoulder, the driver lost control of the vehicle and struck the guardrail and rolled over several times. The air bags deployed, and the glass shattered. There were no injuries reported. A Police report was filed. The contact associated the failure with NHTSA Campaign Number: 26V316000 (Forward Collision Avoidance). The vehicle was towed from the scene to a tow lot. The local dealer was not contacted, and the vehicle was not diagnosed or repaired. The insurance company later towed the vehicle to the facility and deemed the vehicle a total loss. The manufacturer was notified of the issue; however, an assigned case manager had not responded. The approximate failure mileage was 19,081.

NHTSA ODI 11747940

The contact owns a 2025 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, another vehicle slowed down in front of the vehicle, and the Forward Collision Avoidance system activated, the brakes engaged, and caused another vehicle behind to crash into the rear of the contact’s vehicle. No warning lights were illuminated. A Police report was not filed. No injuries were sustained. Medical attention was not needed. The air bags did not deploy. The vehicle was taken to an independent mechanic, where it was diagnosed, and it was determined that the rear bumper, rear hatch, and several other unknown parts under the bumper needed to be replaced. The vehicle was repaired. The contact was notified that the VIN was included in NHTSA Campaign Number: 26V316000 (FORWARD COLLISION AVOIDANCE). The manufacturer was not notified of the failure. The failure mileage was approximately 18,120.

NHTSA ODI 11747237

I had the Hyundai recall 302 performed on 5/27/2026 and after the software update none of the front sensors worked. My wife had a 2 mph bump with the car in front of her on [XXX]and there was no warnings, also no damage no injuries that I'm aware of. So I started to investigate why there was no alarm sounded or any red warning light on the dashboard. Pulled the car into the garage and up to 6 inches from the garage wall no warning on the dash. Took the car back to the dealership on 6/5/2026 they changed some settings and it still failed to warn of an still failed. The gave me a service appointment on 6/9/2026 they calibrated the front windshield sensor and now the parking assist sensors worked. When I pulled into the garage the front camera showed yellow and red warnings as I approached the wall. That fixed the parking sensors issue. Still no forward collision avoidance warning shortly there after was referred to the service manager Rich Block he stated that the front bumper cover would need top be removed to calibrate the radar behind the bumper, but Hyundai's warranty would not cover it and, I should call Hyundai Customer care. I did and was contacted by Mohamed at National Consumer Affairs (714) 922 - 3276. and here we we sit. when they pulled the bumper they found the mounting bracket was bent. Mohamed at National Consumer Affairs (714) 922 - 3276 stated could I prove that all this happened after recall 302. I can only prove the parking sensor issue because after recalibration they worked. Hyundai Motors refuses to accept any responsibility for this incident. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11746534

I was driving along a 40 mile an hour road and there was a fork in the road and a car in the opposite lane waiting to turn onto that fork to the right and the car just slammed on the brakes and I was injured very badly. My neck back and hips are hurt very bad.

NHTSA ODI 11741739

On XXX, my vehicle unexpectedly activated its automatic braking system while driving, resulting in a rear-end collision. My infant daughter was in the vehicle at the time. While we were fortunate to avoid catastrophic injuries, the incident placed both of us in significant danger and could easily have resulted in a much more serious outcome. The other driver may also have sustained injuries as a result of the collision. The vehicle sustained approximately $20,000 in damage. Since the accident, I have learned of Hyundai’s recall involving this braking system. Given the circumstances, I am deeply concerned that the condition addressed by the recall contributed to the collision. What is particularly troubling is that this was not the first time I raised concerns regarding the vehicle’s braking behavior. On February 23, 2026, at approximately 11:00 a.m., I spoke with my dealership, North Bay Hyundai in [XXX] regarding unexpected braking behavior that I was experiencing with the vehicle. My concerns were not escalated, and I was not advised that a potential safety issue might exist. Several months later, I was involved in a collision involving the same system that is now subject to recall. I am also deeply concerned by the manner in which this recall was communicated. I received only a text message regarding a defect involving a critical vehicle safety system. Given the potential consequences of unexpected braking events, I do not believe the seriousness of this issue was adequately conveyed to affected customers. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11740955

What component or system failed or malfunctioned, and is it available for inspection? The forward collision avoidance (FCA) system malfunctioned. The front camera system appears to have triggered unintended hard braking beyond normal driver input. The vehicle is available for inspection upon request. How was safety put at risk? While approaching a vehicle in front of me, I was gradually slowing down and applying the brakes normally. Without warning, the vehicle suddenly applied significantly stronger braking than intended. This abrupt and excessive braking caused the vehicle behind me to collide with my car, creating a dangerous situation and increasing the risk of injury. Has the problem been reproduced or confirmed? UNKNOWN. The issue has not been reproduced since the accident, and it has not yet been confirmed by a dealer. However, the incident is consistent with Hyundai Recall NHTSA Campaign Number 26V316000, which describes unexpected and premature activation of the forward collision avoidance system. Has the vehicle been inspected? The vehicle has been inspected by insurance representatives following the accident. It has not yet been inspected by Hyundai or a dealership specifically for this recall-related issue. Were there any warning signs before the failure? There were no warning lights, alerts, or messages prior to the sudden braking event. The braking intervention occurred without advance notice. Additional description of incident: At the time of the incident, I was approaching a vehicle ahead and applying the brakes gradually under normal driving conditions. The vehicle then suddenly applied much stronger braking than expected, consistent with automatic emergency braking intervention. This abrupt deceleration caused the vehicle behind me to rear-end my car. This behavior matches the defect described in Hyundai Recall 26V316000, where the forward collision avoidance system may activate unexpectedly and apply excessive braking.

NHTSA ODI 11740688

My car abruptly stopped due to the emergency braking system when the car in front of me braked (hard) but I had more than enough time to stop without having the emergency braking system engaged. Due to this, the car behind me hit me from behind damaging my bumper, trunk, and back lights

NHTSA ODI 11740016

The forward emergency braking system on this vehicle is a hazard not a safety feature. I have almost been rear ended 3 times because of it and have had my neck and back hurt from the quick sudden stop! I was not even at risk of getting into an accident! This feature needs to be permanently disabled! I still owe 30 payments on this car but will be getting rid of it if i can't disable this permanently.

NHTSA ODI 11736762

The contact owns a 2025 Hyundai Tucson. The contact stated that while driving at various speeds, the vehicle experienced intermittent phantom braking; the vehicle violently and suddenly slammed on the brakes with no obstructions present, causing the contact to sustain shoulder and back pain on several occasions. The contact did not seek medical assistance. The contact stated that the failure had progressively worsened. Additionally, the contact stated that the standard Smart Cruise Control (SCC) disengaged while driving. The contact stated that the failure had been intermittent, requiring the driver to manually re-engage the cruise control mode. There was no warning light illuminated. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 5,000.

NHTSA ODI 11734043

Phantom Braking due to Forward collision detection has caused one front end collision in snow and one rear end collision in a construction zone while I was slowing down. In one instance it was snowing and in one instance it was in a dusty construction zone slowing for steel plates.

NHTSA ODI 11734151

I forgot to mention that with my two accidents while slowing down for traffic or a turn, that phantom braking happens almost every day now (it happened about 7 times in 4 minutes while I was on the highway, that's not exageration) Curves on the highway with a car diagonal to you in the center lane while you're passing, weird light reflection, falling snow, dust in a construction zone, anything. I can't drive with it on as it alerts to nothing. It's very scary to drive with it on, so now I have a useless safety feature that is really more like a death trap in the right circumstances, which will come.... Someone will be doing 70 on the highway, and their Hyundai Tucson will slam it's brakes on full tilt and it will cause injury and/or death. It's only a matter of time.

NHTSA ODI 11734171

My wife was driving our Hyundai Tucson on the city street at about 35 mph. She signaled left to get into a turning lane. The turning lane has two lanes and is very long. She got into the turning lane and the traffic in front of her stopped. The car's collision avoidance system activated and slammed on the brakes even though the vehicle was not very close to the cars in front of her. As a result, a vehicle behind her rear ended her causing over $9,000 in damage. This car has done this before on the highway and city street. The collision sensitivity setting was on normal and had been since we got the car and until the accident. I had also been driving the car when the collision avoidance activated. The problem with this car is that it only knows to slam on the brakes and results in getting rear ended. It does not gradually apply the brakes even when the car in front is not very close and locking up the brakes is not necessary and is actually unsafe as shown when my wife was in a rear collision accident. This is a major safety problem and needs to be looked into.

NHTSA ODI 11733047

Component or system that failed or malfunctioned: The electronic throttle control system and/or the powertrain control system malfunctioned, causing the vehicle to accelerate automatically and involuntarily. How safety was put at risk: The malfunction caused a collision with another vehicle and a structure. The failure placed the safety and physical integrity of two individuals at serious risk. Problem reproduction or confirmation: To my understanding, the issue has not yet been reproduced or confirmed by a dealer or an independent service center. Inspection of the vehicle or component: The vehicle and/or the affected component have not yet been inspected by the manufacturer (Hyundai), law enforcement, or insurance representatives, as an insurance claim is currently in progress. Warning lamps or prior symptoms: There were no warning lights, messages, or other symptoms prior to the failure. The incident occurred suddenly without any prior indication. During the event, the brake pedal did not respond.

NHTSA ODI 11716552

I was travelling southbound on a main urban street. I was approaching an interesting with a feeder road to a major freeway. I was in a line of cars making a right hand turn onto this feeder. Just before I was about to start turning right, the Tucson Hybrid suddenly and unexpectedly smalled on the brakes and I came to a full stop. I was HIT FROM BEHIND. There was minimal damage to the car that hit me. My car had damage to some plastic components on the bottom of my rear bumper. Total cost to repair this damage was 785. No insurance claim was filed.

NHTSA ODI 11716489

The contact rented a 2025 Hyundai Tucson. The contact stated that the vehicle would stop and would restart independently while driving. The contact stated that while attempting to reverse, the vehicle failed to respond on several occasions while the gear shifter was in reverse(R). The contact stated that the failure occurred while there was a vehicle parked behind the vehicle or further away. There was no warning light illuminated. The rental company was informed of the failure. Additionally, the contact stated that upon shifting to reverse on one occasion, the vehicle responded, but unintendedly accelerated. The contact stated that upon depressing the brake pedal, the brake pedal was stiff and failed to respond, causing the vehicle to crash into an unoccupied parked vehicle. The contact stated that the distance between the two vehicles could fit two parked vehicles. The contact stated that her teenager was occupying the front passenger's side seat during the incident. The contact stated that the front passenger's side and driver's side seat belts failed to restrain the passengers as needed, causing both passengers to use their arms to protect themselves. The police officers arrived at the scene but did not file a report. Both passengers sustained arm, neck, and head pain but declined to be transported to the hospital by ambulance. The contact stated that the gear shifter was locked after the crash and required two hands to move to park(P). The rental company was informed of the failure. The contact was able to drive the vehicle back to the residence. The vehicle was driven to the Rental Company the following day. No further information was available. The dealer and the manufacturer were not notified of the failure. The failure mileage was 24,292.

NHTSA ODI 11714439

11/2/2025- The forward collision warning and the automatic emergency braking system engaged and brought my vehicle to a complete stop in the middle of the road when there was no imminent danger of a forward collision occurring. My vehicle was rear ended by the vehicle behind me as a result of the sudden and complete braking of my vehicle. This same incident happened a few days before this collision, but there was no vehicle behind my vehicle, so no rear end accident happened at that time. 12/1/2026- vehicle inspected at Jim Click Hyundai regarding the sudden stopping of the vehicle. Jim Click determined a fault code FRONT CAMERA BLOCKAGE. Dealer said they cleared the code and the problem should not return. On or around 12/8/2025 the 2025 Hyundai again had the front collision avoidance system randomly setting off alarms when the vehicle was driving on the freeway and other vehicles were traveling alongside the 2025 Hyundai. There was no emergency braking occurring at this time. 12/9/2025- the 2025 Hyundai returned to Jim Click Hyundai and at that time the dealer determined the front camera was showing an obstruction when none was there. They replaced the front camera with a new camera. 12/28/2025- the same problem of the front collision avoidance system and the automatic emergency braking engaged again, even though there was a new front camera installed on the vehicle. The 2025 Hyundai vehicle came to a complete stop in traffic. The vehicle ahead 2+ car lengths ahead swerved from the left lane to the right lane to avoid a box in the road. Driver of the 2025 Hyundai was applying the brakes when the 2025 Hyundai emergency braking system took over and the 2025 Hyundai came to a complete stop in traffic when there was no need for this. 1/2/26- 2025 Hyundai returned to Jim Click Hyundai and remains there while the Service dep't is driving the vehicle trying to diagnose the cause of the continued emergency braking problem.

NHTSA ODI 11712476

I started to accelerate from a full-stop to turn left at arrow onto highway ramp and car's emergency brakes came on with a real jolt - almost rear-ended by semi behind me. So scary. So dangerous. Backache, now, too.

NHTSA ODI 11710894

Multiple times the car has locked the brakes when there was a car several car lengths in front of me. This has resulted in me nearly being rear ended three different times. The force of the stop has also caused me to have neck and back pain. This is u safe and will result in injuries. There are many reports about this on Reddit.

NHTSA ODI 11706262

I crossed red light, truck coming from my left , I hit his car side , he hit my front car , my airbag didn't open although it is totally loss , despite the other car air bag opened

NHTSA ODI 11704324

The automatic braking was inappropriately applied while I was coming to a controlled stop on a 45mph stop light intersection. I was already slowing down and about 30 feet behind the car in front of me the Collision Avoidance warning starting going off, slightly applied brakes (to the additional amount I was already applying) then slammed on the brakes to a complete stop. There was some teen behind me who wasn't paying attention, and obviously no one expects the car in front of them to slam on their brakes 30 feet behind the cars in front of them, then plowed into back end of my car. This isn't the first time it's happened and I wasn't even at risk of collision as I was already slowing down in the other instances. But this time it caused an accident and injury. I am suffering from whiplash and possible herniated disk. The system is on the Late setting as well but is still dangerous to drive. There needs to be a firmware update or sensor recall, this is very dangerous!

NHTSA ODI 11701993

On numerous occasions (over 20) the forward collision system just slams on the brakes to a full stop, there was nothing close enough to vehicle to cause this issue. Sometimes it’s caused by rain or wind, sometimes for no apparent reasons. One time it caused a no damage accident as person behind me tapped my bumper. In traffic it is set off often with nothing within a safe distance away. There was no obstacles or sudden movements from other vehicles around me. I have brought the car back too Hyundai 3 times only to tell me either a dumb excuse or nothing is wrong with vehicle. I have seen on forums there are a lot of incidents with this particular car We have serviced the vehichle 3 different times over this issue and were told there is nothing wrong with the vehicle Accident happened in summer so I will say there was a crash in additional details but last date occurrence of automatic stop was this morning

NHTSA ODI 11698342

While driving a 2025 Hyundai Tucson rental vehicle (VIN: [XXX] ), I experienced a sudden and unintended acceleration, and the steering appeared to turn without input.The vehicle veered off the road and struck a tree on a local street two blocks from my residence. The result was the wheel was popped off of it's axel and deflated immediately. Two days prior, I experienced a similar event in the same vehicle — sudden acceleration and braking hard making a loud braking noise. I suspect a mechanical or electronic malfunction. No warning or sensors were alerting me that this would happen. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11695205

The contact owns a 2025 Hyundai Tucson. The contact stated that while driving 55 MPH, the contact attempted to switch lanes, and the Forward Collision Avoidance feature intermittently activated, bringing the vehicle to a complete stop. The contact started to experience neck pain from the consistency of the failure, but did not seek medical attention. The failure had occurred on several different occasions. No warning lights were illuminated. The vehicle was taken to a dealer, where it was diagnosed that the vehicle was performing as designed. The vehicle was not repaired. The contact stated that she was concerned that the brakes would sustain damage over time due to the constant failures. The manufacturer was notified of the failure and stated that if the contact permanently disabled the Forward Collision Avoidance feature, the warranty would be affected. The failure mileage was approximately 8.

NHTSA ODI 11694799

I was traveling on [XXX] in Nashville. There was a motorcycle speed trap on the right shoulder so I moved over to the left. The car in front of me also moved to the left and my car slammed on the brakes and came to a complete stop on the highway. I was badly rear-ended causing $12,500 in damage. This has happened 2 other times to me since then. This seems to be a consistent problem with the 2025 Hyundai Tucson. I'm fixing my car and selling it as I don't feel safe. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11693375