2025 Hyundai Santa Fe Hybrid

Driving home from church this morning, the vehicle experiences a sudden loss of power and the car went into “limp mode”. Even the pedal floored and the engine rpms high, the car would barely go about 25 or 30 mph. A message from the dash board told me to pull over and leave the engine running to charge the EV batteries. The batteries would charge enough for what I thought would get me home but quickly drained leaving repeat the action until I could limp the six miles home with flashers on and cars passing me to get around. No warning lights and no indication there was a problem until it happened leaving me baffled and frustrated. I was just thankful that I wasn’t going faster when it happened. If I had been going faster when this happened, it could have created a major accident. Dangerous! Since this happened on Sunday, the dealer wasn’t open. I hope to get it to the dealer tomorrow to find out what is going on and how to fix it. The car has only 14850 miles on it.

The contact owns a 2025 Hyundai Santa Fe. The contact stated that while driving approximately 65 MPH, the vehicle unexpectedly decelerated to 25 MPH with a “Vehicle Will Shut Down” warning message displayed. The contact stated that the engine then began to shut down, and although the accelerator pedal was depressed, the vehicle failed to accelerate and stalled. The failure occurred on multiple occasions, requiring the vehicle to be towed each time. The vehicle was towed to the dealer; the vehicle was not diagnosed or repaired and the contact was informed that the failure could not be duplicated. The manufacturer was made aware of the failure and multiple cases were opened, The failure mileage was approximately 3,300.

Since February 2026 I have had daily incidents of the hybrid system error where the vehicle is only relying on the hybrid battery to move. I've had a few near miss accidents as my car crawls through an intersection. Was almost rear-end after leaving a stop sign and the hybrid system error popped up and the car doesn't accelerate. In order to temporarily fix the system, the car must be shut off and restarted. There is not always a safe place to be pulled over to perform this shut down. It is a driving hazard and not safe to drive. It has been to the shop now a 3rd time with no resolution. I have reached out direct to Hyundai Corporation with my concerns and they have documentation. The car is a 2025 model and has less than 5,000 miles. I fear a serious accident from this system error and Hyundai needs to resolve ASAP.

Sudden loss of power (multiple incidences in the first 3000 miles, multiple service visits). While driving normally there was a sudden loss of power. Once at an interstate on ramp while attempting to merge, and three times while driving on city streets. The first dealer visit resulted in no action due to no codes and the problem not replicating. When I pulled into the dealer and shut off the car; I received an alert that the vehicle was officially transferred to me. When I restarted the vehicle, it operated normally. The consensus was that the vehicle was left in “dealer mode” and it was several days after I purchased the vehicle before the system was updated. The second insident was deemed to be a bad catalytic converter which was replaced by the dealer. The third incident was said to be due to a bad fuel rail sensor which also caused the catalytic converter from the second incident. The fourth incident occurred the day after the vehicle was repaired from the third instance. The vehicle was not safe to drive and was towed to the dealer, where it is today.

Vehicle went in to limp mode in the middle of driving. Would not accelerate past 30mph. Was able to turn around and pull in to a neighborhood when the vehicle stopped responding altogether and had an additional warning about letting the engine recharge the hybrid system. Restarting the car got it home. This would have been extremely dangerous had it happened on the highway, at highway speeds. Dealership replaced the high pressure fuel pump. Got it back yesterday, we will see if that fixes it.

While driving at highway speeds (59–75 mph), the vehicle suddenly lost propulsion power and entered a reduced-speed “limp mode,” rapidly decelerating and creating a dangerous traffic situation. The dashboard displayed a “Hybrid Power Control Unit” warning along with audible alarms. During the second incident, the vehicle failed to shut off when the engine stop button was pressed. Multiple adult witnesses were in the vehicle on each dangerous traffic situation.

Supplemental Update – Ongoing Safety Concerns and Extended Loss of Use Since submitting my initial complaint, my leased Hyundai vehicle (VIN [XXX] ) has now been presented for service for the third time for the same unresolved safety-related issues. The vehicle has been held by the dealership for eight (8) consecutive days during this service visit with no resolution and no clear timeline for return. Safety concerns remain unresolved, including: Persistent toxic/chemical odor inside the cabin Random rear hatch opening while vehicle is parked and locked Repeated false “windows open” alerts Electrical/body control system irregularities To date, I have not been provided with documentation confirming that cabin air quality testing, exhaust intrusion testing, or comprehensive electrical diagnostics have been performed. These unresolved conditions present ongoing safety risks and loss of use. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Started car, reading paperwork and suddenly my car went into Neutral bycitself and rolled backwards in a parking lot. Thank goodness no one was walking behind my car. This is the 2nd time it has happened. Additionally, twice previously, my car screen blacked off. 1 other time while sitting at a traffic light, the car shut off. I have been patient but now I'm afraid ti drive this car with only 2,650 miles on it.

Stopped for gas, vehicle started but would not go into gear, engine lights indicated 'Check hybrid system', warning lights shown. 1/2 hr on the phone with dealership to assist. No problem detected when returning to home dealer. Second episode occurred, vehicle at dealer for the past 4 weeks. Episode repeated at dealership yet "no abnormalities are detected with diagnostics ".

I've been having a few issues with my 2025 Calligraphy Hybrid I bought in November related to the main screen, sometimes when I start the vehicle it doesn't properly initialize and it will show me some of the icons and nothing else. No HUD, no speedometer, no remaining fuel, no hybrid information. It's a huge safety issue, it seems to happen every couple of weeks. I thought it was the digital key not working properly so I disabled that but still having issues. I have to let the car sit for a few hours or overnight and then when i turn it on then it's back to normal. I realized that when the main screen is off, it doesn't capture the mileage so the mileage is off by close to 300 miles right now. Huge issue, I've had it happen on my way home from work (25 miles) at least 4 times, and once on a road trip (150 miles). Also when this happens because I can't see the speedometer, I have to use Waze on the infotainment screen (which works without issue) to see my actual speed because the built-in navigation only shows me increments of 10 mph on the screen (this is just stupid).