2026 Hyundai Palisade Fuel system Problems

“The engine misfires and runs very rough when stopped in drive after highway driving, and the vehicle hesitates and struggles to accelerate from a stop. At about 3,000 miles, Phil Long, Colorado Springs diagnosed a failing cylinder 6 fuel injector and replaced it on 22 April 2025. The problem continues after that repair. The condition repeats in the same way. After 15 minutes to 1 hour of interstate driving, I exit the highway. When I stop at the first traffic light on the off ramp, the engine begins idling very rough, and the tachometer shows about 500 RPM. …”

“I am a 77 year old senior and was driving my 2025 Hyundai Tucson Highbrid at approx. 70 MPH on the highway, then suddenly there was significant shuddering through the Tucson with noticeable loss of power. The Tucson dropped to 30 MPH. After that it would accelerate with significant shuddering. This would repeat several times while driving. In addition there were no Malfunctioning indicators, or warning lights. We were never so scared in our lives. This occurred on Thursday , October 2 nd.2025 at around 1:00 P. M. On highway 355 and 53 traveling Northbound.”

“We lease a 2026 Palisade with only 4k miles. Several weeks ago I was going through a toll plaza, car would not accelerate after slowing down, as if it was in neutral. All of a sudden it kicked into gear and car lunged forward. 10 min later at a traffic light car failed to accelerate after a complete stop. Press the accelerator sluggish response, then kicked back into gear. Very Scary. I pulled over and notified the dealer. Then set an appoint. Dealer did a diagnostic, found no issues, could not replicate problem on test drive . Everything was fine a few weeks. My son took the car. …”

“The contact owns a 2026 Hyundai Palisade. The contact stated that the vehicle turned off on several occasions after the engine Auto START/STOP system was engaged. The vehicle was restarted and was taken to the dealer; however, the failure could not be duplicated. Additionally, upon starting the vehicle after the vehicle was refueled at a gas station, the check engine and several other unknown warning lights were illuminated, and the vehicle failed to respond while shifted to drive(D). The vehicle was towed to the contact's business. …”