2022 Hyundai Santa Fe

At approximately 67,000 miles, the vehicle experienced a sudden vibration when accelerate and decelerate. Engine light was on and vehicle had a hard time to maintain speed above 40mph. Cars were honking behind us due to the lack of speed on road. It happen all of a sudden and cause me and my wife panic at first. The car was took to the closest dealer ([XXX] Hyundai [XXX]) and they found the problem was due to an internally leaking fuel injector, requiring a complete out-of-pocket replacement. This is a known, widespread manufacturing defect directly addressed by Hyundai Technical Service Bulletin TSB #25-FL-001H (which supersedes 23-FL-002H-1). The bulletin explicitly states that 2021–2022 Hyundai Santa Fe 2.5L GDI engines suffer from premature internal fuel injector failure caused by internal filter breakage, forcing owners to pay out of pocket for a design flaw acknowledged internally by the manufacturer. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Engine light for car read codes PO 304 303 420 prior to sale of car per code read out taken when engine light went off shortly after my purchase. Not addressed prior to sale. Codes read and called to dealership. Car taken for service. Reported fuel smell, exceleration issues, short stallings. Same codes. Stated car was " fine." Drivable. Asked for brakes/ rotors to be checked. No documented brake service given. Stated they were "fine." Taken to local brake place next day that confirmed brake rotors needed repair. Car returned after began sputtering. Reported as fuel injector failure. A known issue with this makr and model that shown codes point to that were given to, and read at service center by mechanic at dealership twice. They did not mention replacing catalytic converter, that is damaged from injectors and an emissions issue at time of call regarding repair report. No brake report or inspection requested multiple times to be checked. Did not follow correct protocol to ensure engine was clear of fuel sprayed by injectors into pistons, intake valves, ect. They placed my self at risk for engine fire, sudden car failure. Consistently mislead and failed to do proper reseach and care regarding car issues and hazards it presented. Being a known issue with this make and model it was a failure to inspect for issue. An emissions failure and violation to allow a damaged catalytic converter to be on road. This issue with the car is in class actionable suit. It is not on the recall list. As it damages the whole car systemi including emissions, it should be forced to be on the recall list so dealerships cannot allow potential harm to their customers as well as violating emission laws.

This vehicle has experienced: • Multiple roadside breakdowns • Three fuel injector system failures • 2 complete transmission failures and replacements • Loss of propulsion • Fuel and chemical odor safety risks • A cumulative total of over 60 days out of service, currently at dealer since 4-15-26. SUMMARY OF SAFETY-RELATED FAILURES AND REPAIR HISTORY Incident #1 — May 20, 2022 (Mileage In: 4,899 | Mileage Out: 4,909) Vehicle broke down roadside in an unsafe, unlit area, requiring towing. Failure attributed to fuel injector defect. Vehicle remained in repair until May 24, 2022. Incident #2 — July 19, 2022 (Mileage In: 9,316 | Mileage Out: 9,321) Vehicle emitted strong gasoline odor, creating a potential fire and safety hazard. Vehicle was not drivable and required towing. Released July 26, 2022. During a recorded phone call, Hyundai Case Manager provided a verbal assurance that this failure would not recur. Incident #3 — September 9, 2025 (Mileage In/Out: 65,232) Vehicle exhibited engine shuddering, suspected fuel injector failure, and transmission shifting defects. Dealer released vehicle without resolving the defect on September 9, 2025. Incident #4 — January 13, 2026 (Mileage In: 72,089 | Mileage Out: 72,098) Vehicle lost power and broke down, requiring towing. Dealer determined full transmission replacement was required. All four fuel injectors were replaced again, marking the third injector-related failure. Released January 23, 2026. Incident #5 — January 30, 2026 (Mileage In: 72,467 | Mileage Out: 72,487) Vehicle overheated, lost power, and emitted chemical odors, requiring towing. Dealer confirmed cooler hose failure and fluid leakage. Released February 5, 2026. Incident #6: 4-15-26 - Sent back to dealer. Dealer still has car in shop. Advising needing new transmission. Still no confirmation as of 5-16-26 if car is repairable.

In November 2025, my 2022 Hyundai Santa Fe began to hesitate when accelerating and would almost "jerk" when I pressed the gas pedal. Soon after my check engine light came on and I made an appt to take it for the closest Hyundai dealership (as it's still under warranty 33k miles) Upon running a check the dealership notified me that Fuel Injector 1 has misfired and will be replaced. I receive my vehicle back and not even 100 miles later my check engine light in on again and the same issues are arising. Back to the dealership to see now Fuel Injector 3 has misfired and there is an open TSB showing all 4 Fuel Injectors need replaced. My vehicle was finally returned to me in January 2026. It is now February 16, 2026 and my check engine light in on YET AGAIN. I've been given the run around from Hyundai Corp about fixing this vehicle. Why is this acceptable treatment when a vehicle is under warranty ?

While traveling out of state, my 2022 Hyundai Santa Fe (2.5L) experienced a sudden loss of power and rough running during acceleration to pass; check engine light came on. Independent shop pulled code P0302 (cylinder 2 misfire). Vehicle became unsafe to drive and was left at a Hyundai dealer in Indiana. I later learned Hyundai issued TSB 25-FL-001H (Jan 2025) for 2.5L GDI injector internal filter breakage that causes misfires and directs replacing all four injectors. Parts were quoted up to three weeks on backorder. This sudden power loss during highway passing presents a safety risk (inability to accelerate/merge). Vehicle is under 60,000 miles.

Bought Car in 2022 when COVID was still a problem. I had problems with the LED screen on the dash turning off. It did come back after about 10-15 minutes. I had to pull over to the side of the road in the meantime. I brought my car in and no problem was found. I was told that there was no way they could order a $6,000 part if they could not reproduce the problem. I still have had this problem periodically, but it does not last as long. This can be a safety risk when the screen goes out when driving. My check engine light has gone off many time in the 3 yrs and 7 months of me owning the vehicle. I am asked if the light is blinking when this occurs. If I said 'no', I was told 'then you don't have to worry'. I had my car in to evaluate the engine light on, and was told not to worry that no code showed up (I did not get a service record if they didn't find any thing, despite me asking). The very next day I was stranded on a busy Hwy. My car was towed to the shop. I barely got off the Hwy as one of my fuel injectors was bad. I was 45 min from my home and the check engine light went on. I started driving home and called the service dept. I was told that as long as the light was not blinking, it would be ok, and I tomorrow I should call for an appt if it is still on. My car started to act up when I was nearing my home, but it was drivable. The next morning the light was still on. I did not feel safe driving it around and felt it was another fuel injector. I was driving my car to the shop and the car was slowing down a little at a time. By the time I was about 1/2 mile from the shop, my car was only going 14 miles per hour. I was driving on the side of the hwy with my flashing lights on. Very unsafe. I know that I have a lemon for a car, but not taken seriously, that is a PROBLEM. I have had many more times that my engine light was on and would bring it in for an evaluation. Sometimes things were found, other times not. I am concerned about that lack of concern.