2023 Hyundai Santa Fe

The vehicle's software was updated on Oct 21, 2025. The software has serious flaw. When driving on slight incline on the passing lane the vehicle will apply the brakes without warning. This has happened 3 times. At times, when vehicles were following me they also had to apply the brakes unexpectedly. Had they not applied their brakes, they would have rear ended me at highway speeds. I also recall that there were no vehicles either in front or to the right ahead of me when it occurred. Also there was a guardrail on the left side of the highway at the time. This did not occur with the previous installed software. Every time this happened, the vehicle was in cruise control and driver assist was ON to keep vehicle in the lane.

Was driving at 10 MPH on highway car began to cut out run rough and produce an extremely pungent smell of gasoline.. then stalled.. vehicle serviced and low pressure fuel injector had a leak causing fuel to spill onto the vehicles starter causing it to fail as well.. both were replaced under warranty by dealer. Highly concerned about fuel leaking from injector system onto a hot engine and electrical components and the aerosolized fuel. Police advised not to start vehicle due to fuel leaking and smell.

I was in a car accident on September 30, 2025. I was hit from behind by a dump truck and was pushed into the car in front of me. My seat belt in my Santa Fe did not tighten, and my head hit the steering wheel. There is something wrong with the seat belts. I was going to take it to the dealer to check after repairs, but my car is a total loss. Just wanted you to know the seat belts failed, and it could happen to others who own this type of vehicle. The air bag did not deploy, but my understanding is that the car has to be going a certain speed.

My 2023 Santa Fe Limited has 3,000 mils on it. At least four times it had low speed hesitation (lags then revs up for a few seconds). It’s a problem with the DCT (Dual Clutch Tranny) Hesitation pulling onto a highway poses a significant risk of a faster car colliding into my car. I called my car dealer and the service manager said they know they are having problems with this. He said they tried everything to remedy the problem but, there is no solution. They said the only way not to have the problem is to get a different car!!! Hyundai should have a recall on this hesitation matter before someone gets injured or killed. It’s a safety issue. The last time it happened will be the date of my incident report.

On [XXX] in Rehoboth, DE, my 2023 Hyundai Santa Fe experienced a sudden and complete power failure while reversing out of a parking spot. All electrical systems shut down—including propulsion, dashboard lights, and emergency brake—causing the vehicle to roll backward into oncoming traffic. No warning lights appeared beforehand. After about an hour, power returned on its own. A passing police officer witnessed the situation and a report was filed with the Rehoboth Beach Police Department. On September 6th, Hyundai service performed a diagnostic scan of the engine and transmission systems. No fault codes were found, and the issue could not be replicated. After sitting overnight, the vehicle restarted normally and passed a road test. The dealership documented the incident but returned the vehicle without repair, stating: “Cannot duplicate concern at this time.” I was advised to tow the vehicle in if the issue recurs and, if rolling occurs again, to use a wheel chock. I purchased this vehicle new in 2023. It has only 40,000 miles and is covered under a 10-year bumper-to-bumper warranty. A failure of this magnitude—especially during a basic maneuver like reversing—poses a serious safety risk. Despite the dealership’s inability to replicate the issue, I do not feel safe operating the vehicle until the root cause is identified and resolved. I am currently in the process of escalating to Hyundai corporate for further investigation, including a buyback review, replacement evaluation, or extended diagnostic protocol. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

horn has stopped working. Seems to be a systemic issue when looking online in Forums etc... I have scheduled the problem to be fixed and it is not a fuse issue. It will be a month before the dealership is able to get me in to assess the problem. This is a safety related issue and this needs to be addressed with the manufacturer.