2025 Hyundai Santa Fe electrical problems

Filed Oct 29, 2026 · Driver assistance, Electrical · AR

2025 Hyundai Santa Fe - The sound for the blinkers, rear-view camera alerts, and radio sounds has gone out 2 times, once in XXX and then on XXX. This is a safety issue. I have had issues with an electrical battery drain with the key fob antenna being one of issues draining the battery and replaced in XXX. After the sound went out on XXX, I did not drive the vehicle for 1 day, then went to get into the vehicle on Wednesday, XXX and the vehicle was dead. No lights were on, it would not unlock. I missed the scheduled service appointment I had on the XXX due to the dead battery. The car had sat unused for less than 24 hours. I had to call Hyundai roadside assistance for them to jump the car off and tow it to the dealership yesterday afternoon. The battery drain started happening at 700 miles on the car, where I jumped it off myself, and continued to happen every month or two. I kept jumping it off and taking it to the dealership to let them know what was going on. Sometimes, they would investigate it, and sometimes nothing would get done about it. I have had to jump this vehicle off myself at least 6 times since XXX. Yesterday, I just called roadside assistance. There is clearly an electrical drain on the car battery somewhere in this vehicle. XXX, the car was located in [XXX] on a vacation and started having shuttering and engine light came on. This was fixed on XXX by replacing #4 fuel injector prior to 30,000 miles. This is not a reliable vehicle, or safe. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 28, 2026 · Electrical · TX

with not warming the vehicle would not start using the standard FOB. It would not be recognized. Fortunately, we had an alternative Digital Card (which is NOT standard equipment) that allowed us to start and drive the vehicle. Upon calling Hyundai support we were instructed to take the vehicle to the nearest Hyundai dealership for diagnosis. The diagnosis was a failed BDC (Body Domain Controller). This part took a week to arrive at the dealership and subsequent repairs were made. The dealership indicated that they had seen this problem before, but no service advisories from Hyundai were available for this issue. I have asked Hyundai for an explanation and nothing has been forthcoming. My primary issue with this problem is that if I had not acquired a digital card, at an additional cost of approximately $200, we would have been stranded, with no manner in which to start or drive the vehicle. There were no indications of a problem, no alerts in car, and no alerts via the My Hyundai web site via the internal diagnostics. The BDC just failed, with no explanation. Without any type of explanation or diagnostic information, who knows if or when this could occur again, and where.

Filed Sep 14, 2026 · Electrical, Transmission · TN

ON 3 separate occasions the vehicle has suddenly quit going.twice going through an intersection after taking off. the third time going up hill near my house. the car would only go 10 mph. A message would come up on the dash that reads " transmission system error, Check transmission oil immediately. That was not the problem. The Hyundai dealership performed a recall update on the computer the first time.but that didn't solve the problem as a week later the same thing happened .Again the car was towed to the dealership. this time another transmission service was performed according to a tech line information. after retrieving my car from the dealership I drove it for less than a week and the same thing happened. The car was towed back to the dealership again.Now the dealership says they can't do any repairs as the computer will not store any malfunction codes so they will know what to repair. I have been in contact with Hyundai Motor America and a case file has been established. " 43176412 ". Hyundai will not accept any responsibility for placing a computer in a car that will not retain a MIL code. Hyundai now tells me they have done all they can and for me to get my car from the dealership and drive it. That is ridiculous. Hyundai wants me to put myself in danger of having a wreck because the car loses power in front of traffic behind me. People start slamming on brakes to keep from hitting me and blowing their horns.I'm also afraid of some loose cannon out there having road rage at me because I can't get out of the way. As for the car and Hyundai , no mention of the shortcomings of the computer was mentioned until the 3rd time the car was towed back to the dealership. Also, there is some type of serious problem with the transmission which Hyundai is failing to be concerned with . This is a dangerous situation. do I need to be seriously injured or worse before Hyundai addresses this issue ?

Filed Aug 6, 2026 · Electrical, Fuel system · TX

Hyundai Sante Fe Hybrid 2025 has a bad factory seal on the high voltage harness - hybrid battery connector that causes water to intrude the connector under normal conditions which can short the battery and pose a major safety issue. Hyundai is refusing warranty coverage of my shorted hybrid battery on my brand new 2025 Hyundai Sante Fe Hybrid stating “Flood” with no evidence of flood damage. My car experienced multiple P engine hybrid system faults on XXX and would not drive. I had it towed the Van Hyundai Carrollton on that date. They did not look at the car for over a week and it sat on their lot the entire time. On XXX they finally inspected it and claimed the car had been “flooded” and shorted the hybrid battery. The only evidence they provided was moisture in the high voltage harness. There were no water/silt lines, any other damage to any other components, and no evidence of any water anywhere else on the vehicle. The video they showed of the undercarriage only showed normal splash marks from driving. The car was never flooded/submerged. Any water/moisture found in the harness would have been due to a faulty/defective factory seal that should be impervious to water under normal operating conditions. No water/flooding/submersion damage would have been obvious of this. The dealership refused to provide any evidence and had no follow-up. One key aspect they refused to acknowledge was there was a massive rainstorm in [XXX] onXXX which was also the only rainstorm in the area in the previous 1-2 months. This happened while the car was on the dealer’s lot. The car had no issues with any water prior to being at Van Hyundai. A case was opened with Hyundai Corporate and the Dealship also lied stating the car wasn’t in their system until XXX, which is false as I have phone records, tow records, and appointments showing the 7/10 date, so corporate overlooked that. I disagreed with the dealerships diagnosis as it was a scapegoat finding putting all blame o INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT

Filed Aug 5, 2026 · Electrical, Engine · OH

What component or system failed or malfunctioned, and is it available for inspection upon request? The vehicle suffers from an intermittent, total engine stalling and propulsion failure. Without warning, the engine completely shuts down while driving and automatically drops the vehicle into "Accessory (ACC) Mode". The vehicle is fully intact, operational when it restarts, and is available for immediate inspection upon request How was your safety or the safety of others put at risk? This issue has occurred five total times in live traffic, severely risking the safety of the vehicle's occupants and surrounding drivers. The most recent and dangerous incident occurred on the freeway in heavy, stop-and-go traffic. A sudden, complete loss of power on a high-speed freeway leaves the vehicle entirely vulnerable to rear-end collisions, as it leaves no room or momentum to safely coast to the shoulder. Has the problem been reproduced or confirmed by a dealer or independent service center? No. The vehicle has been brought to an authorized Hyundai dealership five separate times specifically to diagnose this exact stalling issue. Because the failure is intermittent, dealership service technicians have been unable to replicate the problem during their test drives or resolve the root cause. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? The vehicle has been inspected five separate times by authorized Hyundai dealership technicians during the service appointments mentioned above. No police, insurance, or independent manufacturer representatives have inspected the vehicle yet, as the stalling has not yet resulted in a physical crash. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear?There are absolutely no dashboard warning lights, check engine indicators, error messages, or mechanical symptoms prior to the failures. The engine shuts down instant

Filed Jul 10, 2026 · Electrical, Engine · IN

While driving on the on ramp to [XXX] the car completely stopped and all systems shut off. There were two dash lights that flashed quickly with one being the check engine light but I did not see the other long enough to identify it. The dealership could not reproduce the issue but has the car now and is doing a more thorough evaluation. What component or system failed or malfunctioned, and is it available for inspection upon request? The engine stopped. Yes it is available How was your safety or the safety of others put at risk? Extremely dangerous as it came to a stop in the middle of the road. It was late at night so at that moment no one was behind me. 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? no, the warning lights flashed on as the car died but disappeared once off. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 29, 2026 · Electrical · MD

On [XXX] after spending the day at Henson Creek Golf Course in Fort Washington, MD, I returned to my vehicle and discovered that it had completely lost all electrical power and would not start. The vehicle exhibited no warning signs prior to the failure. Believing the issue to be related to the battery, I contacted AAA for roadside assistance. AAA attempted to jump-start the vehicle, but the jump-start was unsuccessful. The vehicle was subsequently towed on May 18, 2026, to Pohanka Hyundai in Capitol Heights, MD for diagnosis and repair. After approximately nine days, the dealership advised that the battery terminals had been secured and that no additional problem could be identified. On [XXX], the exact same issue occurred again; however, this incident was significantly more dangerous because it occurred while the vehicle was being driven. While traveling during morning rush hour through a busy intersection in Northeast Washington, DC, the vehicle suddenly and completely lost power without warning while in traffic. The vehicle stalled in the middle of the intersection, creating an extremely hazardous situation. Fortunately, motorists traveling behind me were able to stop in time, and no collision occurred. However, this incident could easily have resulted in a serious crash involving injuries or fatalities. The vehicle was towed to Ourisman Hyundai in Bowie, MD, where it is currently undergoing additional diagnosis. I am extremely concerned that this vehicle has experienced two complete electrical failures within approximately one month, including one incident that occurred while driving in heavy traffic. Because the dealership was unable to identify the root cause after the first incident, I am concerned that a serious defect may exist involving the vehicle's electrical system, battery system, wiring, power distribution system, or another component affecting vehicle operation and safety. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 26, 2026 · Electrical, Seat belts · NJ

The contact owns a 2025 Hyundai Santa Fe. The contact received notifications of the federal safety agency Campaign Number: 26V218000 (Seat Belts) and 25V659000 (Electrical System); however, the parts to do the recall repairs were not yet available. The local dealer was contacted; however, the recall repairs were denied due to a lack of maintenance records with an authorized Hyundai Dealer. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.

Filed Jun 25, 2026 · Electrical · MD

On June 24, 2026, my spouse was operating our 2025 Hyundai Santa Fe when the vehicle suffered a sudden, catastrophic, and total electrical failure while actively on the roadway. The vehicle was stopped at a traffic light when all propulsion power was instantly lost, the engine shut down, and all electronic systems—including the center infotainment screens and instrument cluster—went completely dark. Safety Hazard & Entrapment Incident: Simultaneous with the total electrical failure, the vehicle's electronic door lock system malfunctioned. The rear passenger doors and rear liftgate locked completely and could not be disengaged or opened from the inside by the passengers. Due to this total power loss and lock failure, my young daughters were trapped in the rear seats. My spouse was forced to climb over the center console from the front seat into the rear cabin to manually extract our children through the front doors. The family had to abandon the disabled vehicle in live traffic and walk down the roadway to reach a safe location. This constitutes a severe safety hazard involving both sudden loss of motive power on a public road and occupant entrapment due to safety lock/latch failure during an electrical short. The vehicle has been towed to Pohanka Hyundai of Capitol Heights for inspection.

Filed May 26, 2026 · Driver assistance, Electrical · IL

I own a 2025 Hyundai Santa Fe that was purchased on 08/15/2025. The first malfunction occurred on 08/25/2025, only days after purchase, and the vehicle has experienced repeated safety-related issues since then. The vehicle has repeatedly displayed false Forward Collision Warning alerts, Blind Spot Warning failures, Park/Neutral errors, and intermittent disabling of safety features. The most serious incident occurred when the vehicle unexpectedly entered “Limit 20 MPH” mode while I was pulling into active traffic with my toddler in the vehicle, limiting acceleration and creating a safety risk. I have also experienced false collision alerts while parked and after the vehicle was shut off. The vehicle has been taken to the dealership multiple times for diagnosis and repair attempts. Some issues were duplicated by dealership personnel, while other visits were documented as “could not duplicate.” A front ultrasonic sensor was replaced, but the vehicle continued experiencing safety-related concerns afterward. During the repair process, I was informed and observed that dealership personnel appeared limited in what repair actions could be taken after consulting Hyundai through their diagnostic system. I was also informed that Hyundai influenced what could be included on service reports and that dealership personnel were instructed to “print the book” rather than fully document observed concerns. I believe this may have affected repair efforts and documentation of ongoing issues. The vehicle has been out of service for extended periods and the issues continue despite repeated repair attempts. Due to the ongoing malfunctions and inconsistent operation of the safety systems, I no longer feel safe driving the vehicle because I am concerned it may not function properly during a real emergency situation. Attached are photos of various dashboard errors and warning messages that occurred during these incidents to document the alerts and malfunctions experienced.