2025 Hyundai Santa Fe Hybrid electrical system problems

“Vehicle is 2025 Hyundai Santa Fe Hybrid. Component that failed was the electrical system, specifically, the 12 V battery drained leaving the vehicle's electrical systems completely dead. Happened on two occasions: first in XXX, and second in XXX. Vehicle had to be towed in both instances. Our safety was put at risk in that my wife and I, who are both senior citizens, were essentially stranded in dark parking garages at night and left to arrange towing services under very difficult circumstances. In both instances, the electrical system was examined by Hyundai service technicians. The first time I was without the vehicle for 11 days. The second time I was without the vehicle for 22 days. Both service calls identified and confirmed that an unknown power drain was the source of the problem, and in both instances replacing the 12V battery was "the solution". The dealerships that serviced the vehicle ran all diagnostics and could not pinpoint the source of power drain; neither could assure me that it would not happen again, more or less at random. There were no warning lamps, messages or other indications of the problem prior to failure and the dealerships that…”

“The contact owns a 2025 Hyundai Santa Fe. The contact stated that while driving approximately 65-70 MPH, the vehicle shut off. The contact pulled over to the side of the road and restarted the vehicle. During an oil change appointment, the dealer informed the contact of Hyundai TSB Number: 25-01-028H-1 (Seat Heater Unit Software Update) and associated the bulletin with the failure. The dealer completed the repair; however, the failure persisted. The contact stated that the failure identified in the TSB had caused the battery to drain. The vehicle was taken to the dealer, where the HPCU and main wiring harness were replaced twice, the battery was replaced once, and the transmission was replaced once; however, the failure persisted. The contact stated that while driving approximately 20-25 MPH and coming to a stop on an incline, the vehicle shut off. Several messages, including "HEV Low Battery - Hibernation Mode", were displayed. The contact stated that the vehicle failed to restart. The vehicle was shifted into neutral and rolled into a nearby parking lot. The vehicle was towed to the dealer, where the contact was informed that the vehicle was repaired. The…”

“I am filing a safety complaint regarding my 2025 Hyundai Santa Fe Hybrid, which I purchased as a Certified Pre-Owned vehicle in April 2026 with approximately 15,000 miles. The vehicle currently has approximately 27,000 miles. While driving on the [XXX], my vehicle suddenly and unexpectedly lost propulsion. The vehicle’s electrical systems remained on, but it would no longer accelerate normally. There were no warning lights, messages, or alerts before the loss of power. I was in active freeway traffic with numerous vehicles behind me. Because my vehicle could no longer maintain speed or accelerate, I was placed in an extremely dangerous situation. I feared being struck from behind by another vehicle. It was a terrifying experience. I was eventually able to pull over to the side of the freeway. I turned the vehicle off and waited briefly before restarting it. I was then able to get off the freeway and reach a gas station. Once at the gas station, multiple warning lights illuminated on the dashboard, and I observed that the hybrid battery was not charging. The vehicle ultimately became undrivable. The vehicle was towed to Centennial Hyundai in [XXX] for diagnosis.…”

“My 2025 Hyundai Santa Fe Hybrid has multiple ongoing problems. Several are intermittent. BRAKES: The brake pedal intermittently sticks when I first start the car. STARTING/ELECTRICAL: On two occasions the vehicle would not start and roadside assistance had to come to start it. It is also sometimes hard to start. The Digital Key on my phone intermittently fails to unlock the doors or start the car. On occasion, all audio is lost at startup, including the radio, speakers, and turn signal sound. The front left speaker intermittently cuts out or sounds distorted. The passenger front door exterior handle/unlock intermittently fails. The driver side temperature knob is stuck at 77 degrees F. POWER TRAIN: The vehicle hesitates/stutters during the first half mile of driving after starting. SEATS: The driver seat memory intermittently fails to move to the saved position when the car starts. SUSPENSION: A creaking, spring-like noise occurs when the car rocks during initial acceleration and braking, possibly from the driver side front. I have reported this to the dealer twice before. Inspection: I have reported these problems to Westlake Hyundai in Thousand Oaks, CA, on…”

“The vehicle has a recurring intermittent failure that can leave it completely undriveable. When starting the vehicle, the instrument cluster displays “Check Hybrid System,” “Check Emergency Stopping function,” the check-engine light, and multiple warning indicators. The vehicle remains in Park and will not shift into Drive. This has happened multiple times. Disconnecting and reconnecting the 12-volt battery temporarily restores operation, but the problem later returns. After a reset, the check-engine light may remain illuminated for approximately one day before disappearing. During the most recent occurrence, the vehicle became disabled at approximately 8:00 PM in a retail parking lot while my family, including two young children, was with me. The vehicle would not move. We had to leave the vehicle and walk in the rain to obtain tools so the 12-volt battery could be disconnected and reconnected in order to get the vehicle operating again. The problem was reported in writing to a Hyundai dealership before an August 10, 2026 service appointment, including a request to retrieve and document stored and history diagnostic trouble codes. The condition remains…”

“Driving vehicle on surface street, engine would not accelerate past 3000 RPM. No immediate codes or warnings, backed off gas pedal and went to accelerate again. This time many warnings illuminated. Second report from myself for same issue. Wife has had the vehicle in for same problem 4 times, last time was last week.”