Sudden loss of speed for no reason. was traveling at 35 mph when vehicle suddenly dropped to 22 mph. Stepped on gas with no response. I know the 22 mph because it showed up on warning illuminator. Car behind me almost hit me because he had no indication (prior warning). Turned off at closest exit, turned vehicle off then on restart things were normal. Took to dealer and they found nothing in computer code or mechanical to explain why this happened. Am an older women afraid what will happen if repeats on highway going 70+ mph. Please made Hyundia find and fix.

- Neenah, WI, USA

Forward radar sensor pass side lower grill/bumper area. 1st told a sensor recall but after 3 hrs and then seeing the vehicle in the shop with the entire front bumper clip removed the sensor was out of its driver side socket and 1 side flopping around which may have caused a small dimple from the inside to pop out on the 6x5 cover that is the entire lower rubber/plastic black bumper/grill. Told the vehicle was hit, YET no visible damage to bumpers or painted surface can be found by their 2 dealerships and their 1 body shop, + 2 mangers, and 1 independent collision shop.1 manager drove the vehicle 10/11 and stated after "is operating as it should". Warnings have come on again since then refueling at additional 77 mile and then at 92 miles 10/14. Hartford ins has been notified and pending I hope an inspection. Vehicle purchased 1st March 2024, 1st warning at 5336mies currently at 5421 miles. They triggered the service engine light and stated via onboard computer it was an issue with a lower front driver side radiator something that may have been bumped while taking off the front clip, which they chipped and area and left a bit of gap at the fender connection. Other than the small dimple on the plastic from what I believe the sensor had been bouncing against, there is no damage. A safelight windshield company stated there is a notice/recall on the "auto headlight sensor on dash" but they do not cal them, only the optic sensor top center of windshield. BUT per the manual that top sensor plus lower radar can control the forward crash, cruise setup and auto braking. Need some help since my firm works with all auto/tire mfg and conducts DOT tire testing for USA and worldwide independent firms/gov's.

- Uniontown, OH, USA

it happened again. While traveling at highway speeds behind a slow poke, 2 cars passed me on either side at nearly the same time. this caused the auto braking system to activate, abruptly slowing my car for now reason. Luckily no one was tailgating me at the time. This is the 4th time the car has braked for no good reason on the highway (see previous reports) and the 2nd time when 2 cars passed on either side at the same time. This is clearly a software bug that needs to be fixed!

- Dallas, TX, USA

while driving N on hwy 75 in Dallas, I was traveling at posted speed- 70- in the 2nd of 4 lanes when I was passed on either side by cars 10-15 mph faster than me. they passed almost exactly at the same time. This confused the cars auto breaking feature. The lane ahead was clear for over 100 yrds. My car braked hard and beeped a warning. There was no reason for the car to do this. This is the 3rd time the car has braked on the hwy when it was not necessary. Previously, I assumed Road trip bugs on the censor caused the issue, That could not have been the cause this time. This is also a concern because the spyware in the car is sold to insurance Companies Apparently, as bad driving behavior which may affect my rates.

- Dallas, TX, USA

The contact owns a 2024 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the vehicle was hesitating during acceleration. While accelerating, the vehicle failed to exceed 3,000 RPM. Thee contact stated that while driving 45 MPH, the vehicle decelerated to 25 MPH independently while depressing the accelerator pedal. The automatic start button remained illuminated. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 8,800.

- Freedom, PA, USA

While slowly pulling into a parking space at a local shopping center, my 2024 Hyundai Tucson Limited suddenly accelerated while I still had my foot on the brakes to stop. The acceleration was so sudden and intense that I had to swerve to avoid a head on collision with a car parked in front of me. It took me a few seconds to gain control of the car, as the engine was revving at a high acceleration rate and the brakes were not working as they should. Just as suddenly as it happened, it then stopped and I was able to regain control of the car. Had there been other cars in the parking slots nearby, there would have been no to way to avoid a collision.

- Fort Myers Beach, FL, USA

When I need to car to accelerate, sometimes it will, and other times I have to push on the gas pedal all the way to try to accelerate. This is extremely dangerous when pulling out in traffic as I am never sure when the car will be working correctly the car shows no codes that there is something wrong, the mechanics cannot figure out what is causing the lack of acceleration. I can be at a red light and try to accelerate and I would have to push the gas all the way down to even get it going. This is an inter written problem, but very concerning when I am trying to cross traffic as I am never sure what my acceleration is going to be.

- Denver, PA, USA

My Tucson is applying Automatic Emergency Break without a reason. It happened to me 3 times in a week with my Tucson Hybrid 2024 NLine, it was scary and I was on freeway at 70+MPH and couldn't capture the warning as it popped out for only 3 sec. I see no cars around when this happened and when I checked few forums I see this as a common problem in Hyundai vehicles in recent times and feeling scared. I was lucky enough last week as there is not vehicle behind me when breaks applied automatically.

- Irving, TX, USA

The contact owns a 2024 Hyundai Tucson. The contact stated that while the vehicle was at a stop light while depressing the accelerator pedal, the vehicle hesitated to accelerate. The failure occurred on several occasions and the vehicle was taken to the local dealer. The dealer was unable to duplicate the failure and the vehicle was not repaired. After retrieving the vehicle, the failure persisted. The manufacturer was informed of the failure. The failure mileage was 331.

- Stowe, VT, USA

The Hyundai I just purchased was packaged with BOTH carpeted and rubber mats. Both were priced and charged separately on the Hyundai window sticker. The car cannot be bought without paying for both. It is well known that driving with rubber mats over carpet mats creates a serious safety hazard that will can lead to the mat slipping and the driver losing control over speed and braking. I contacted Hyundai to warn of the safety issue and request a refund for one of the mat types. They basically told me to get lost. I think a safety violation should be issued against Hyundai. I fear someone will get killed because they use both mats in the car since they paid for both.

- Lago Vista, TX, USA

The forward collision avoidance system made me have accident. I was driving on the expressway, the forward collision made the car stop abruptly, then accelerate. As I was veering to the right, the car stopped again in the middle of the expressway causing me to have an accident. This is unacceptable and very unsafe. This vehicle is not safe to drive with the collision warnings.

- Decatur, GA, USA