Automatic Emergency Braking Problems of Hyundai Tucson - part 1

I had just started accelerating from a stop light at 715 am on a clear morning. I was not close to any other cars and there was no traffic entering. Without warning my collision warning came on and brought the car to a sudden stop. This is damgerous and I am lucky I was not rear ended.

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The car was shaking, idling and accelerating and engine lights on.

While backing out of driveway, with parked vehicle along side and one moving vehicle in the road, I was applying the break and the emergency stop feature activated. My speed was 2-3 mph and slowing.

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Emergency brake applied while driving. Had been driving with vehicle in front, on each side and one at rear with issues and all of sudden the emergency brake was applied causing the vehicle in back to get very close to my car. This is has happened multiple times and reported to dealership multiple times. This was the second occurence on this day.

This is not the first situation nor the first time it is being "fixed". I took my car in early March for an oil change and informed the representative about the same thing. The time that made me say something is when I was switching lanes and the car must have sensed me being close causing me to stop completely and the car behind me having to hard break and swerve. Rick case Hyundai in duluth, georgia had my car for a month, just for me to experience the same thing over 3 times since then. I received my car in April, and the recall for this wasn't put out until may. I am constantly scared for my life and the passengers I may have lives, as well as the other drivers lives, considering I got this car due to being in a rear end collision. When I took it in April, they constantly, drove my car to diagnose it but kept telling me they didn't see the problem, and it wasn't coming up for them on their internal tracking system for their cars(webdcs). Once they finally talked to the corporate field technician, they advised they replace the whole front bumper, including sensors, for the solution. But like stated before, since then I have experienced near crash stops at least 3 times since then, two of them being in the same month (July 16 and July 28). If this is the same solution, I don't see it being beneficial and I would like to be bought out at this point. Especially if I have to be without my car for a long period of time again.

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On July 24, 2026, while driving on a marked city street with no vehicle, pedestrian, or obstruction ahead, the forward collision-avoidance system on our 2022 Hyundai Tucson limited awd applied emergency braking on its own, three to four separate times, each lasting one to two seconds. Traffic behind us nearly struck our vehicle. My family was in the car. This is the latest event in a progressive electrical fault history. In June 2025, under warranty at 48,037 miles, a Hyundai dealer documented recurring multi-system warning cascades (forward safety, lane keeping, high beam assist, speed limit warning) and a failed auto start/stop system. The dealer's listed resolution was "battery voltage / replace battery"; their invoice records that no repair was performed. We replaced the battery at our own expense. The faults continued. In June 2026, the start/stop system shut the engine off at a red light and the vehicle would not restart, leaving us disabled in a live traffic lane. Power was only restored by cycling the hood release. Since then, tcm and ecu software updates and a battery harness replacement (our expense, approx. $1,200) have been performed. The faults persisted after these repairs and have now escalated to uncommanded emergency braking. Date- and time-stamped video and photographs exist for multiple events. Two Hyundai dealerships have not identified a root cause. Similar phantom braking reports exist from other owners of this model year. We no longer consider the vehicle safe to drive.

My gf was driving car coming up on stopped traffic when automatic braking engaged slamming on brakes for no reason causing the car behind to rear end my vehicle, my gf was transported to hospital with 4 broken ribs with each rib having multiple fractures, she was in icu for 2 days and total of 4 days. She has had to go back for another 1 day stay for pain and breathing difficulty.

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.

I lease a 2025 Hyundai Tucson sel. This vehicle has experienced repeated electrical and safety system malfunctions. Display/infotainment failure: the center display has shut off while driving on at least 10-15 separate occasions. This has occurred while I was actively using carplay for navigation in an unfamiliar area, causing loss of directions while driving. Forward collision/automatic emergency braking (aeb) malfunction: the aeb system engaged unexpectedly and unpredictably while I was driving on the highway, causing the vehicle to brake suddenly. This resulted in another vehicle rear-ending me. This occurred while I was driving home from a doctor's appointment. I understand this vehicle/system was subject to a manufacturer recall related to this issue. Aeb failure to engage when needed: on a separate occasion, while I was backing out of a parking spot, the emergency braking system did not engage or respond when needed, and I narrowly avoided being struck (t-boned) by another vehicle. Warning system malfunction after repair: following the highway incident, I brought the vehicle to an authorized Hyundai dealer, who performed a front safety system software update. Approximately two days later, while driving on the highway, a dashboard warning appeared related to the front safety system. This warning disabled cruise control and other related features. Dealer inspection/dispute: I brought the vehicle back.

My car was recalled because the auto brake was triggering incorrectly and causing issues (at least 4 accidents with injuries are known to have been casued by this problem). I brought my car in to have the auto braking issue fixed, after I had already been rear ended due to it automatically activating (submitted a previous NHTSA claim about this. ) the same defect recurred while I was driving yesterday evening. A pedestrian had fully cleared a crosswalk, I attempted to pull forward, and the auto-brake triggered without cause, locking up the vehicle and nearly causing me to be rear ended again. This is an ongoing safety issue that was supposed to have been corrected and clearly was not.

Automatic emergency braking stopped the vehicle because another vehicle in front turned right.

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2023 Hyundai tuscon xrt has a dangerous and alarming issue. The emergency braking engages at highway speeds where no risk is present. The car groans and pulls dangerously. In addition, the forward collision warning engages on surface streets every 10-15 seconds and there are no risks present. The emergency braking issue has occurred on several occasions. The forward collision warning issue occurs every time the car is driven.

My 2022 Hyundai tuscon came to a complete stop on the highway in colorado twice in the last 2 months for no apparent reason. There weren't any obstacles or cars in front of me that would have caused the car to brake suddenly. I had passengers in the car and we were jolted forward. The air bags did not inflate and we were not hit from behind, but we could have been severely injured or killed. There are numerous "phantom braking" reports like this here on the NHTSA site for the 2022 model as well as more recent models. Yet Hyundai has only issued recalls for the 2025 and 2026 models. How are you addressing this issue?.

About once a month on average my Tucson's emergency system braking comes on without an emergency. It seems to occur mostly when taking an exit on the highway, but a few times it has been completely random. All of these instances have had no other vehicles around or any roadway barriers present. When it activated, lighting comes up on my dash telling me the emergency braking is activating. Sometimes it brakes, other times it does not seem to. Mostly, it seems that if I keep pressing down on the gas pedal it just turns itself off. I've never had my car come to a complete start but I have had it hit the brakes hard a few times. I bought the vehicle brand new and have had it for 4. 5 years, and it has always done this. I've had the dealership reinstall the software that controls the braking system, but it had no affect. I ask the dealer every time I go in if others are complaining about this and I am always told no. However, I saw a similar recall was just put into place for the newer years of the Tucson, and it makes me think they are told to tell people no one is complaining about this.

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).

The forward collision automatic braking happens randomly and for no reason causing immediate and complete stops in the middle of traffic. It whips the head forward as if a crash had occurred and causes drivers to the rear to have to suddenly brake to avoid collision. Ive had it occur multiple times since purchase with the most recent being this morning in the middle of a roundabout. I know I can disable the system but 1) that's also a safety risk and 2) it turns back on every time I start the car which is unacceptable. Ive asked the dealership about it and was told that it cannot be disabled. I already have the sensitivity turned down as much as possible and it still is happening. This issue makes an otherwise wonderful vehicle almost uunrivaled. When this happens there's no warning before the sudden braking. It also will randomly just slow speed down for no reason and with no way for the driver to stop it. Something needs to be done. Fix the system and make available a way to disable it without it auto turning back on. Im fed up.

On 5/14/2026, while driving southbound on I-95 with my pregnant wife and young daughter, my 2025 Hyundai Tucson (approx. 7,500 miles, purchased new 10/2025) experienced multiple critical safety failures. Two days prior, the heads-up display (hud) intermittently failed to activate. On 5/14, traveling at 65-70 mph near [xxx] , the brakes auto-applied without driver input. Simultaneously, the instrument cluster and hud went completely black, eliminating all speed and vehicle status information. This recurred intermittently. Near [xxx] , the brakes auto-applied with full force, locking all four tires and bringing the vehicle from approx. 70 mph to a complete stop on the active interstate. Two trailing vehicles spun out and left the travel lane to avoid rear-ending us. A multi-car pileup was narrowly avoided. The vehicle was taken to pearson Hyundai in midlothian, va. They diagnosed and replaced a faulty wiring harness. Immediately after the repair, driving northbound on I-95 back to [xxx] (5/16), the lane keep assist/lane departure system began pulling the steering wheel into the adjacent lane without driver input, repeatedly and unpredictably at highway speed. The dealer repair did not resolve the all defects. Within a three days this vehicle exhibited: (1) total instrument cluster/hud failure, (2) uncommanded emergency braking at 70 mph causing two other vehicles to take evasive action (3) uncommanded steering input into an adjacent lane. These failures created immediate risk of serious injury or death. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

On may 14, 2026 at approx 6:00 pm, driving 2026 Hyundai Tucson on north lamar blvd, austin TX at approx 30 mph, vehicle applied brakes suddenly with no obstacle ahead. Forward collision avoidance system activated unexpectedly. Vehicle was immediately struck from behind. Rear-end collision caused total loss ($54,295 repair estimate). No injuries. Police report filed. On may 23, 2026 discovered open manufacturer recall 302 for fca system increased sensitivity causing sudden braking. Incident occurred 4 days before recall was issued.

There have been two instances now within about 4 months where my 2025 Hyundai Tucson's emergency braking/anti forward collision system has engaged completely unnecessarily, slamming on my brakes and almost causing the car behind me to hit me. In both cases there wasn't a car in front of me within at least 100 feet. In both cases I was going probably 30-40 miles per hour.

Forward collision warning and automatic emergency braking systems failed on 5/13/2026. Driving at a low rate of speed, approximately 15mph in a roundabout traffic circle with no other vehicles in front of the vehicle, sunny dry weather, 740am. Proceeded into traffic circle and fca engaged and hard braking occurred for instantaneous stop and my vehicle was hit in the rear by a school bus. Air bags did not deploy. No recall on the vehicle at time of accident. Recall issued 6 days after accident for fca. After contacting insurance company, Hyundai was contacted and made aware of the incident and safety concerns. The vehicle was towed to the dealership that evening and the next day I was advised that they could not check out the vehicle prior to having the collision repaired. The vehicle was then towed to a collision repair shop and released from there and towed back to the dealership on 6/19/2026. The vehicle had two safety recalls at that time and according to the service department both have been addressed. The vehicle is presently sitting the dealership (8/4/2026) waiting for Hyundai to investigate further. There were a few incidents prior to the collision that occurred randomly with the warning going off when no other vehicles or structures were close by. I took possession of this vehicle on 11/22/2025 and it had 2,431 odometer miles when this accident happened.

My vehicle has an ongoing safety?critical defect involving the braking system, powertrain, and adas logic. I have not driven the vehicle since 04/27/2026; all diagnostic trouble codes were recorded while the vehicle was in the dealership’s possession. On 05/05/2026, the vehicle stored multiple dtcs, including c164286, p071300, p076800, u060ff1, u060f29, and u061386. On 05/13/2026, p071300, p076800, u060ff1, u060f29, and u061386 were recorded again, showing repeated powertrain, communication, and control?system faults while the vehicle remained with the dealer. On 05/22/2026, two additional safety?related dtcs (p107600 and c272146) were first recorded, and both were last reported again on 05/27/2026, still while the vehicle was in dealer custody. These dtcs now show as historical because the vehicle has not been operated since the last fault was recorded. Their historical status only means the system has not run a new check — it does not mean the defect is repaired. The vehicle has also exhibited brake?logic abnormalities, including a persistent brake?on signal at highway speeds, which violates brake?throttle override safety logic and affects adas functions. The powertrain shows signs of torque converter instability, mechanical drag, abnormal slip, and heat buildup documented across these dates. Two ota updates were performed during periods of instability, but neither corrected the defect. The dealership has not provided documentation confirming the safety issues were resolved. Because the braking logic, powertrain behavior, and repeated dtc activity remain unexplained and unresolved, I do not believe the vehicle is safe to operate.

The automatic emergency braking system has activated on four separate occasions for unknown reasons or warning. Tapped the brakes and it disengaged. In three of the situations no vehicles or pedestrians nearby. One incident I was driving along a sidewalk when the braking system activated causing an abrupt stop.

Forward crash avoidance system keeps activating causing the car to brake on it's own. This was previously fixed on my car once back in 2022 and now in 2026 it is happening again. I have been trying to communicate with Hyundai regarding additional years to current recall but their not going to even though they have known for years this was an issue and included older models than their current recall. This is not a one time issue this is the second time and until fixed it continously caused the vechile to randomly brake, it's going to get someone seriously injured or killed if they don't address it.

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On at least three occasions, the forward collision system incorrectly determined there was an imminent collision when a car or truck was simply coming over into my lane. The tucscon locked the brakes, bringing the car to a full stop in the middle of high-traffic roads even while the car in front was pulling away. I was unable to give the car gas to continue driving forward. On two occasions this was on an interstate, going from almost 70 mph to stop when there was no car or obstacle in front of the car. It created a very dangerous risk of being rear-ended. The car did display the message "collision warning" on the instrument panel, emit an audible alarm, and shook the steering wheel.

I've had this vehicle as a loaner from Hyundai for 2 weeks now and the vehicle has used its "emergency" breaking system automatically without any need for it 3 times now! no vehicle or object is anywhere close in front of me. Literally gave my daughter, significant other and I immediate wiplash and headaches. Today as I was already breaking due to traffic ahead, the dang vehicle used its emergency breaks (as I was breaking) and completely took over and broke in the middle of the lane, I was nearly rear ended - you can head the brakes from the vehicle behind me and they had to move into a grass area to avoid hitting me- I was unable to accelerate or break on my own.

My wife was driving my SUV while I was a passenger. We were in the left lane, and put the left turn signal on while traveling south bound approaching an intersection to take a left turn (traveling approximately 3-5 miles per hour and slowing) at the traffic light (traffic light was green). There was a car in front of us that had stopped waiting for oncoming traffic to clear and make the same left turn onto the same road as us. While traveling in this lane we hit a deep pot hole (not very visible while driving), just as we were approaching the vehicle stopped in front of us. When hitting the pot hole, our SUV seemed to leap forward a bit and when the brakes were applied to slow and stop, the braking system failed (appeared to freeze) and the brakes did not work, and because the braking didn’t work, our vehicle hit the car in front of us. Prior to and after hitting the pothole, no audible warning sounds or visible alerts appeared and no emergency braking was activated. The airbags in our vehicle never deployed. Our safety (my wife and I) as well as the safety of the 2 passengers in the other vehicle were at risk as we all could have been injured in the accident. As we needed the vehicle for transportation, we immediately began filing all the necessary police and insurance reports and brought our vehicle into an auto body repair shop to be repaired the next day. During the repair work, some of the responsible components may or may not have been replaced and the auto body repair shop also had all the car sensors recalibrated by a 3rd party, which is why we did not bring the car to a dealership to evaluate. To the best of our knowledge, the manufacturer, the police and the insurance company did not inspect the vehicle. We are not experts, but hitting a pothole might be considered an edge case, so I’m not sure that a dealership would have tried or been able to replicate the issue.

4/I was in the turn lane and slowly approaching the vehicle in front of me. I was at least 12 feet back when the emergency brake engaged causing me to fling forward in my seat. However, I did have my seatbelt on a was not physically harmed, but mentally rattled. This also caused the car behind me to almost rear me. 5/1: I was in the parking lot of a local store. A pedestrian was passing at a safe distance as I was slowly cruising towards them. The car engaged the automatic brake even though the pedestrian was clearly out of harms way. There two incidents have occurred within 2 weeks of purchase of my car. There is a feature to temporarily turn off automatic brake, but resets with each restart of the engine making it inconvenient to apply. Also, it is easy to forget to apply each time you start the car. I’ve also read since my incidents other reports of Hyundai drivers saying the disable feature does not always work and automatic brake engages. I feel that the automatic braking is a huge safety risk for driver, passengers, pedestrians and other vehicles on the road. I frequently drive to another state via highway to visit my mother and a now terrified to drive that distance considering all of the accelerations and decelerations involved with highway travel. I feel completely unsafe in my new vehicle. Please review and encourage a software recall that completely removes automatic brake or allows drivers the option to disable and enable at will.

I was turning right from [xxx] onto [xxx] . It was raining lightly, the car initiated emergency braking and no one was in front of me. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Subject: 2025 Hyundai Tucson - persistent phantom braking issue I am reporting a severe safety defect regarding the forward collision-avoidance assist (fca) system on my 2025 Hyundai Tucson. Since purchasing the vehicle, I have experienced five separate "phantom braking" incidents where the automatic emergency braking (aeb) engaged abruptly without any obstacles in the path. In the most recent incident, the vehicle suddenly braked from 30 mph to 20 mph] while driving on a highway. There were no cars or objects in front of me. This unpredictable behavior is extremely dangerous as it almost caused a rear-end collision with trailing vehicles. I believe this is a systemic software or sensor defect that misinterprets shadows or road signs as hazards. I request a formal investigation into this safety risk.

I was driving on the highway in heavy traffic which was moving relatively slowly (15-30mph). I had plenty of room in front of me and was in the process of braking when the vehicle suddenly applied the breaks automatically, coming to a very abrupt stop. It threw me forward and almost caused an accident. Luckily the truck behind me was leaving enough room as well and was able to swerve out of the way and avoid hitting me. There was no need for automatic braking and it seemed very random. The incident scared me a lot and I have felt unsafe driving the car without turning this feature off each time I start the car.

Safety risk: while traveling at approximately 25 mph on the I-495 (way to work) the vehicle initiated a full-force emergency braking event (phantom braking) without any warning. There were absolutely no obstacles, vehicles, or pedestrians in the roadway ahead. This sudden, unprovoked stop nearly caused a rear-end collision with the vehicle following closely behind, putting myself and other car at immediate risk of injury. There were no issues in front of me - only a straight road and I was not tailgating anyone.

I was driving on the highway in heavy traffic going about 65 mph. An unusual symbol appeared on the dash in red that I don't know what it was or what it meant but I thought it must be something serious. Then a warning came up saying for me to take a break. Then a different warning came up saying that I should take control of the car immediately, it was about to brake. The car immediately began to brake. Fortunately I was in the right hand lane of the three-lane highway and I was able to pull into the breakdown lane. I can't even imagine what would have happened if I was in the middle or far left lane. I was not unobservant and both of my hands were on the steering wheel when this happened. Once the vehicle stopped, the symbol on the dash disappeared and the brakes released. I was able to resume driving. Although there was no accident, injury or fire, and no police report needed, this does not discount the seriousness of this event. This could have been life-threatening if I had been in a different lane or had panicked, causing a multi car pileup in the heavy traffic. Serious enough that I feel the need to get rid of this car.

The automatic emergency braking and forward collision warning systems activated while making a left turn after stopping for a red traffic light and locked the brakes of the vehicle in the middle of the intersection with no other car in front of me. Dash alerted that a collision was going to occur. This was the second time. The first time it happened the dealer said it can happen if there is a bug or dirt on the sensor in the bumper or dirty windshield by the camera, they even said it can happen with glare from the sun or light glare.

4/16/2026 at 1:35pm I was traveling north on hwy 69 traveling +-45mph. Vehicle on my right in his lane and one vehicle in from of me about 50yrds. My vehicle auto applied the brakes and alarm indicating emergency collision to happen. A new minutes later (5 minutes) traveling in same direction same speed but no cars on either side but one care approximately 100 yds in from and again the emergency collision brake and alarm took place.

The automatic emergency braking system has literally locked the brakes up 5 times in the last several months since the car was purchased new from the dealer due to this system thinking we were going to hit the car in front that was not braking hard. One time a car had already turned off the roadway and as we started to accelerate on down the road our car locked the brakes up as it has done 4 other times and then will not let you accelerate for a few seconds. 3 of those 5 times we have had cars behind us, one time was a semi, that almost hit us due to the unexpected locking of the brakes. This system can only be turned off each time you start the car by going through numerous menu steps and then it is right back on the next time you start the car. Not only is this going to cause an accident and potential injury(s) but it could even cause an argument with the vehicle behind thinking they were being brake checked. The dealer said they could not turn it off and the only choice was to do it each time you started the car but could turn the sensitivity down which we have tried and it still does it when you least expect it to when there really is no potential crash about to occur. We have emailed Hyundai and awaiting a response as well and advised if this system causes a crash and especially an injury as a result that we would sue and have requested a software update be done ASAP to allow the driver to turn it off and it stay off until it is turned back on or buy the car back as this is a very realy danger and safety issue. A safety feature shouldn't cause another safety issue in itself and this system is doing that and we would be shocked if it hasn't already caused crashes/injuries as a result in other Hyundai cars with this feature. There are numerous complaints by other owners regarding this same issue all over the internet.