2025 Hyundai Santa Fe Hybrid electrical problems

Filed Nov 8, 2026 · Electrical · OH

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 serviced the vehicle (one in [XXX] and one in [XXX]) indicated that if it were to happen again, there likely would be no advance notice in that instance, either. Result: I have no confidence that the vehicle will not leave me stranded in an unsafe location/condition far from home or a vehicle service facility. Vehicle is parked in a surface lot next to our apartment in [XXX] while I shop for a new (non-Hyundai hybrid) vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 2, 2026 · Electrical · 23,489 miles · GA

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 manufacturer was notified of the failure by phone and email, and a case was filed. The failure mileage was 23,489.

Filed Oct 31, 2026 · Electrical, Transmission · NV

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. The dealership advised that diagnosis could take approximately two to three days. This is the first time the vehicle has experienced this failure. However, the sudden loss of propulsion without any prior warning created a serious risk of a rear-end collision. I am concerned that this failure could happen to other Hyundai Santa Fe Hybrid owners while driving at freeway speeds. I am requesting that the federal safety agency review this incident as a potential vehicle safety defect, including the sudden loss of propulsion, lack of advance warning, and apparent hybrid charging-system malfunction. At the time of this complaint, the cause of the failure has not yet been confirmed by the dealership. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 30, 2026 · Brakes, Electrical · CA

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 previous visits and have another service appointment scheduled. The vehicle has not been inspected by the manufacturer, police, or insurance. I am concerned about the brake pedal and no-start problems as safety issues.

Filed Oct 14, 2026 · Electrical, Transmission · KY

Vehicle went into “ limp mode” It is a hybrid and the electric motor was in operative and top speed is around 35 MPH Unsafe to drive

Filed Oct 12, 2026 · Electrical, Fuel system · FL

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 unresolved and continues to recur. The vehicle is available for inspection upon request. Separately, this vehicle also has an unrepaired Safety Recall 288 involving the rearview camera. The vehicle has been taken to the dealer for recall service, but the recall remains incomplete because the dealer stated the required part was unavailable.

Filed Oct 8, 2026 · Electrical, Engine · FL

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.

Filed Sep 19, 2026 · Electrical, Engine · TX

While driving on a highway at approximately 60 MPH, the vehicle abruptly suffered a catastrophic loss of power and entered "Limp Mode," creating a severe safety hazard on the roadway. The vehicle was safely maneuvered and pulled over to the side of the road. Upon shutting the vehicle down and attempting to restart it after a few minutes, the powertrain completely failed to engage, refusing to shift into either Drive or Reverse. The vehicle became entirely disabled and required a flatbed tow to the dealership. ​Dashboard Warning Messages: - ​"Transmission Control System" - ​"Check Hybrid System" ​Diagnostic Trouble Codes (DTCs): - ​P177700 (Transmission / Hybrid Powertrain Control Malfunction) - ​P178400 (Transmission Control System / Electric Oil Pump or Actuator Circuit Fault)

Filed Sep 14, 2026 · Electrical, Engine · GA

**What component or system failed, and is it available for inspection?** The vehicle's electrical/power system failed, causing a complete loss of power while driving. This is the fourth occurrence of this failure. The vehicle is currently at the Hyundai dealership and available for inspection. **How was your safety or the safety of others put at risk?** The power failure occurred while driving on a busy road. The driver struggled to safely maneuver the vehicle (executing a U-turn) to get out of traffic and reach a safe location. The vehicle had to be towed as a result. **Has the problem been reproduced or confirmed by a dealer or independent service center?** The vehicle has been brought to the Hyundai dealership for this same issue four times. As of the most recent update, the dealership has not been able to identify the root cause or confirm a fix. **Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others?** The vehicle is currently with the Hyundai dealership (manufacturer-affiliated) for the fourth time for inspection related to this issue. No inspection by police or insurance has been reported. **Were there any warning lamps, messages, or other symptoms prior to the failure, and when did they first appear?** There were no warning lamps, messages, or other symptoms prior to the failure. Warning lamps/messages appeared only after the vehicle lost power.

Filed Sep 3, 2026 · Electrical · 7,900 miles · CA

The contact owns a 2025 Hyundai Santa Fe. The contact stated that while driving 40 MPH, the instrument panel went blank. The contact was able to pull over safely after the failure. The contact associated the failure with the federal safety agency Campaign Number: 26V047000 (Electrical System); however, the VIN was not include in the recall. The dealer was contacted by phone. The manufacturer was contacted by phone and made aware of the failure. The failure mileage was approximately 7,900.