2026 Hyundai Tucson

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.

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.

Every time we drive our brand new Tucson on the highway the driver assistance warning is constantly flashing a coffee cup symbol on the dashboard along with an audible bell dinging and text suggesting we pull over and take a break for no apparent reason other than we're on a highway at highway speed. It's very distracting and upsetting to say the least and there's no way to disable the defective feature.

The contact owns a 2026 Hyundai Tucson. The contact stated that while driving 45-50 MPH, the vehicle experienced phantom braking, causing the brakes to suddenly apply roughly. The contact stated that the failure had persisted and recurred while driving at 35 MPH. The collision light was illuminated. The contact sustained a shoulder injury due to the sudden braking, but the contact did not receive medical assistance. The vehicle was taken to the local dealer, who was unable to duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 4,000.

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.

A persistent and dangerous safety defect regarding my 2026 Hyundai Tucson. Since February 19, 2026, I have experienced a chemical/burning odor when the heater is in operation. More alarmingly, exposure to these fumes while driving causes me and a passenger to experience severe headaches and dizziness, rendering the vehicle unsafe to operate. To date, I have presented the vehicle for repair on five separate occasions, including four visits to Suresky Hyundai and a "second opinion" visit to Healey Hyundai on April 2, 2026. Despite my documented physical symptoms and repeated visits, technicians have dismissed the issue as a "new car smell" or claimed the vehicle is "operating as designed."

The contact owns a 2026 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the brakes independently activated. No warning lights were illuminated. The contact stated that the vehicle had stopped in the middle of traffic. The contact's minor children were inside the vehicle and seated in the rear seats. The contact stated that during the failure, the vehicle jerked forward abnormally. The vehicle was taken to the dealer; however, the failure was not duplicated. The manufacturer was not made aware of the failure. The failure mileage was approximately 700.

I am writing to formally document a serious, recurring safety defect in ou 2026 Hyundai Tucson Hybrid, purchased less than a month ago. The vehicle has now exhibited multiple distinct dashboard warning faults related to the electronic shifter system, has left me stranded on more than one occasion, and has been sitting at Schomp Hyundai in [XXX] , for the second time, for over one week, with no resolution. The dealership has been unable — or unwilling — to properly diagnose the issue despite photographic documentation of the active fault warnings and the existence of Hyundai-issued Technical Service Bulletins directly addressing this problem. This letter serves as formal written notice pursuant to Colorado's Lemon Law (C.R.S. § 42-10-101 et seq. Since taking delivery, I have experienced multiple occurrences of two distinct dashboard fault warnings on this vehicle. Both have been photographically documented with date-stamped images: • "Shifter System Malfunction! Service Immediately" — The vehicle became inoperable and could not shift gears, leaving me stranded. "PARK Malfunction. Engage parking brake when parking vehicle." — A secondary fault indicating failure of the electronic park system, creating a serious safety hazard. These faults are not related to any collision or external damage. They are pre-existing manufacturing defects that began occurring in the first week of purchase. Notably, this is a known and documented issue affecting Hyundai Tucson Hybrid models. Hyundai has issued Technical Service Bulletins TSB #21-AT-007H and TSB #21-AT-009H. I drove the vehicle approximately 8 times (including to and from the repair center) and have had the issue multiple times.I am formally requesting the following immediate actions: • Direct the dealership to perform a complete GDS historical DTC scan per TSB #21-AT-007H and #21-AT-009H and provide full written results. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

What component or system failed or malfunctioned, and is it available for inspection upon request? Forward Collision Warning How was your safety or the safety of others put at risk? The car braked on the highway and caused me to get rear ended. Has the problem been reproduced or confirmed by a dealer or independent service center? No Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? This occurred twice in the same day, the second time it caused an accident. The first time was on a busy highway, someone braked going 75 mph in front of me and the car "over reacted" and braked so hard the people behind me had to swerve around me. The second time we were in stop and go traffic and it unexpectedly brought me to a complete stop and the person behind me hit me.