2022 Hyundai Tucson: brakes engage by themselves (phantom braking)

Filed Jul 29, 2026 · Driver assistance, Electrical · TX

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.

Filed Jul 11, 2026 · Brakes, Driver assistance · PA

Phantom braking while driving under a bridge. No cars around but Tucson warned collision while driving under a bridge and slammed on the brakes! This has happened multiple times. This fake safety feature is actually a hazard!

Filed Jun 24, 2026 · Brakes, Driver assistance · MD

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 federal safety agency 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?

Filed Jan 29, 2026 · Brakes, Driver assistance · TX · crash · 1 injury

I was driving down the highway going about 60-65mph with cruise control and LKA on. I turned my blinker on to switch lanes, checked my blind spot, and moved over to the left. As I was doing so, a semi switched lanes from the left into the right (my new lane) right in front of me. The truck then slowed down a lot, and usually my Forward Collision Warning would say something if my Adaptive Cruise Control isn’t on (or is and I’m just going too fast to slow down) neither of those things happened. No warning. No automatic brakes. No slowing down. I tried to engage the brakes manually but nothing happened. I slammed into a semi at around 60mph because of 3 different system failures. Not only did I hit the semi at 60~mph, apparently my brakes didn’t work at all and I spun out until I hit the concrete barrier on the highway. If my brakes had engaged automatically, I could have slowed down enough to avoid the collision altogether. And if they had engaged manually I could have at least minimized the damage to my vehicle (and myself) because I wouldn’t have hit the concrete barrier as well.

Filed Dec 5, 2023 · Transmission · 670 miles · NJ

The contact owns a 2022 Hyundai Tucson. The contact stated while driving 40-50 MPH, the transmission was shifting hard, and was upshifting and downshifting independently. There was no warning light illuminated. The contact stated that the failure had recurred several times while driving. The vehicle was taken to the dealer, where it was test-driven, but the failure could not be duplicated. Additionally, the manufacturer sent a field technician out who could not duplicate the failure. The manufacturer then informed the contact that the vehicle was not experiencing a failure. The contact also stated that while driving 50 MPH, the Forward Collision Avoidance: Automatic Emergency Braking system engaged while there was no vehicles or objects nearby. The contact depressed the brake pedal to reset the vehicle, then depressed the accelerator pedal and continued driving. The contact stated that the failure recurred several times while driving. The contact stated that he was driving with the Adaptive Cruise Control mode engaged. The contact stated that while changing lanes, the vehicle failed to accelerate as needed. The contact stated that he disengaged the Adaptive Cruise Control and depressed the accelerator pedal to drive at highway speeds. The contact stated that the failure recurred on another occasion, then the vehicle independently accelerated to 80 MPH temporarily. The contact stated that while driving uphill and depressing the accelerator pedal, the vehicle failed to respond and decelerated. The contact was able to continue driving. The vehicle was not repaired. The failure mileage was approximately 670. The VIN was unavailable.