2023 Hyundai Tucson electrical problems

Filed Nov 9, 2026 · Brakes, Electrical · OR

Manufacturer recall number290 the federal safety agency recall number25v893000 recall statusrecall incomplete summary an optional oem (original equipment manufacturer) trailer wiring harness accessory, designed for towing applications in the specified vehicles, may have been installed in a vehicle location susceptible to water ingress. Water ingress to the wire harness control module could result in trailer lamps become inoperative. In rare cases, an electrical short within the modulmay occur, which oculd lead to overheating, melting, or, in isolated instances, ignition. Safety risk inoperative stop lamps increase the risk of a crash, while an electrical short can increase the risk of a vehicle fire.

Filed Oct 23, 2026 · Body, Electrical · OH

SAFETY DEFECT SUPPLEMENT TO the federal safety agency COMPLAINT #11685540 | VIN: [XXX] | MILEAGE: 27,370 ​This filing supplements Complaint #XXX regarding an uncorrected, compounded steering safety failure following the catastrophic detachment of the steering column while driving on XXX (Repair Order #XXX). ​COMPONENTS FAILED: Steering column assembly, footwell closeout shield, dashboard lower crash pad structural frame, and push-start switch. All components and vehicle are available for immediate inspection. ​SAFETY RISK: Following an invasive warranty teardown for an ignition switch failure under R/O #XXX at [XXX] Hyundai, the vehicle was released in an incomplete, hazardous condition. The factory lower footwell closeout shield was completely omitted, leaving the rotating intermediate steering shaft, universal joint, electric power steering motor, brake clevis linkage, and wiring harness fully exposed directly above driver foot controls. This creates a severe entrapment and mechanical binding hazard. An unauthorized exterior screw was drilled directly through the finished lower crash pad trim to pinch broken internal plastic tabs together, and hardware was left rattling inside the column housing. ​DEALER CONFIRMATION & RECORD FALSIFICATION: Management dismissed the exposed shaft. On R/O #XXX Line 3, the dealership falsified the narrative as "customer needs screws put in behind steering wheel" under an engine line to conceal shop rework. Authorized remedy has completely failed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 7, 2026 · Electrical · IL

Under Hyundai Recall 290, the dealership permanently removed the functional trailer light wiring harness and replaced it with a nonfunctional rubber dust cap. A Hyundai case manager informed me that a replacement harness is "in development," but official the federal safety agency remedy filings show the cap is the final remedy, resulting in the permanent loss of a factory feature I paid for. The removal of towing functionality without a clear timeline for a safe replacement parts remedy constitutes a failure to properly correct the vehicle defect.

Filed Jul 23, 2026 · Electrical, Engine · PA

The vehicle developed an intermittent but potentially dangerous engine control malfunction. After the engine reached normal operating temperature, the engine speed (RPM) would repeatedly surge while the vehicle was stopped in Park and Neutral, fluctuating from approximately 1,000 RPM to over 3,000 RPM without any throttle input from the driver. The condition occurred with the air conditioning turned off and could be reproduced multiple times. At approximately the same time, the Auto Start/Stop system stopped functioning and displayed a warning indicator. A malfunction indicator lamp (check engine light) also appeared during the incident. The warning light later turned off, but the engine surging continued. This unexpected increase in engine speed raises concerns about unintended vehicle movement or loss of driver control if the condition were to occur while shifting into gear or while driving. The unpredictable nature of the malfunction presents a potential safety risk to the occupants of the vehicle and to others on the road. The vehicle has been taken to an authorized Hyundai dealership for diagnosis and repair and remains under inspection. The problem is available for inspection. During my research, I found numerous reports from other Hyundai owners describing similar engine surging, idle fluctuation, and Auto Start/Stop malfunctions involving comparable vehicles. Because similar complaints appear to have been reported by multiple owners, I am submitting this report so the issue can be evaluated for a possible broader safety defect. I have videos of the incident

Filed Jul 8, 2026 · Electrical, Transmission · 21,000 miles · IL

The contact's son owns a 2023 Hyundai Tucson. The contact stated that while driving at various speeds, various warning lights illuminated, and various messages were displayed on the instrument panel; however, the warning lights disappeared upon restarting the engine. The contact stated that her son was forced to restart the vehicle after the vehicle failed to accelerate from a complete stop on one occasion. The vehicle was taken to the dealer for diagnosis; however, the dealer was unable to diagnose or duplicate the failure. The contact was informed that the vehicle could not be diagnosed unless the warning lights were illuminated. The manufacturer was notified of the failure, and a case was filed. The contact later received a letter from the manufacturer confirming the dealer's information. The vehicle had yet to be repaired. The failure mileage was 21,000.

Filed Jun 22, 2026 · Electrical · OH

I received a letter in March that there is a problem with The Tow Hitch Harness Accessory which could lead to a fire etc. They said they will come out with a repair. I contacted the Victory Hyundai dealership in Jefferson Ohio where I got the car in April and they said they have a repair but the trailer electrical/ lights will not work. I got a second letter saying they have a solution for repair in May I contacted Classic Hyundai twice to make sure the repair now will allow the lights and brakes on the trailer work. Julie and Jesica there said all would be fixed and the lights and break lights will work. I brought the car there June 5th 2026 and asked again if all would work. Lyna there said no. I left. I called U-hall Streetsboro Ohio and talked to Bill who handles the hitch repairs and they said they could fix totally and have for some dealerships. I called Hyundai customer service Kyre and asked if Hyundai in Streetsboro Ohio can be set up to have it repaired. He said no. He would not document his response to me. I bought this car with their factory installed hitch because I needed one to pull my boat and move other stuff. My lawn tractor broke down and I have to pay $135 to have it towed for repair. I am unable to fish in my boat since I can not pull it. There is a repair that will work at U-haul and they are ignoring it.They want to make the hitch unusable. Uhaul will fix for $250-$350. If they disconnect the hitch electrical and the car is sold the new owner can get into an accident since they would have no lights and break lights, turn signal. This is a high risk for an accident. They intend to eliminate the fire risk and create an accident risk for the trailer now not working. What kind of engineers they have?? They should be contacted about this situation. It has been several months with no solution when one exists. I have had multiple Hyundais and will no longer purchase another vehicle from them. You should communicate with them on this issue.

Filed Jun 21, 2026 · Electrical · FL

Horn on vehicle consistently goes out. Either goes out entirely or the volume of the horn is below a safe level. This is a known Hyundai issue and Hyundai refuses to acknowledge it on this specific model, but has acknowledged it on different models. I Have had multiple repairs by Hyundai directly, and the horn consistently keeps going out. There are sometimes in dangerous situations where I need to utilize the horn to avoid an accident and warn other drivers of danger, and I am unable to do so, and it causes dangerous driving situations. This is a known defect on multiple Hyundai vehicles in this year, but the Tucson is one of the few vehicles they will not call a voluntary recall on and the federal safety agency needs to be notified about this and act accordingly as a regulatory body to protect consumers and people on the road.

Filed Jun 11, 2026 · Electrical · GA

I received a Recall notice around January 2026 for the trailer hitch wiring harness on my 2023 Hyundai Tucson Hybrid. For 6 months the local dealer told me there was no fix available from Hyundai. I finally received a notice informing me that parts were now available and to bring it in to dealer for repairs. I took the vehicle in for recall repairs on May 27, 2026. Instead of repairing/replacing the wiring harness, Hyundai removed the entire wiring harness making the trailer hitch which I use for my business inoperable legally. When I noticed the wiring harness missing several days later, the dealer said that was Hyundai's "fix" for the recall issue. I contacted Hyundai USA Customer Service who also told me that removing the wiring harness and replacing it with an inexpensive dust cover was the fix. They told me that sometime in the future there will be another recall to have the wiring harness replaced. In the meantime, they have taken my vehicle VIN off the open recall list, since it has been "fixed". Hyundai sold me a vehicle with a trailer hitch and now they have without my permission or prior knowledge disabled it.

Filed Feb 19, 2026 · Brakes, Electrical · FL

All systems warning lights came on

Filed Dec 27, 2025 · Driver assistance, Electrical · PA

Major problems with this cars electrical and computer systems. Six warning lights would begin to flash in succession. Eventually car would be inoperative leaving us stranded in July 2025 in Cumberland MD then after supposed repair we were again stranded in Providence RI on Nov 20, 2025 and car has been there for repair ever since. No completion date has yet been given. I strongly believe there are major safety problems with this car.