2023 HYUNDAI SANTA FE Complaints

I was travelling at 50mph a car pulled in front of me and stopped unexpetedly. I braked hard. My car began to slow, but the brake pedal went to the floor and did not slow, AFter a few seconds, the brake pedal came up from the floor and braking was resumed. I held the pedal to the floor the whole time trying to stop. It was as though the braking system failed and recovered. There was no pulsing felt on the brake pedal typical of ABS working. After my car resumed braking thte collision avoidance system took over and the car stopped just inches from the stopped car in front of me. I had just taken the car in for dealer service at 24,200 and everything was supposedly checked out as required by maintenance. I have contacted Hyundai but have not gotten a response yet.

horn has stopped working twice. Had it replaced under warranty in January of 2024. Same incident happened where horn of vehicle does not work. Seems to be a systemic issue. This is a safety related issue and this needs to be addressed with the manufacturer.

AC evaporator drain design problem June, 2024 approx. 3500 miles under warranty, AC evaporator drain line backed up into the passenger front right. Brought it to service - they unclogged and drained the line at no charge. June 2025 approx. 12,K miles under warranty, AC drain backed up again. The excess water drained onto my feet as a passenger and collected under the front seat, saturating the rug area, potentially causing additional mildew and respiratory causing irritation. Service required an appointment. drained it charged $88. Filed a complaint incl Hyundai Motors ; was told the $88 charge was irreversible - cause was weather. The CAR HEALTH HAZARD seems to stem from a major design flaw The air intake is in the windshield wiper cowl resulting in wet tree and leaf debris , bird droppings, etc collect even when the car is not in use. Thus, when heat or air conditioning is activated, air comes in through the air intake and then through the difficult to acces filter recessed behind the glove box , then into the passenger area When the AC drain hose is plugged, it backs up through the dirty filter and then out, to accumulate under the passenger seat allowing more mildew. Re:My 2024 mile blockage, the water was drained, but the filter was not mentioned. In 2025 with the $88 bill, the water was drained no mention the filter. Draining the water does not correct the problem. It should be required at every service the l drain hose is checked, water drained. and filter changed at no charge until a design correction to cover the cowling or an interim solution is installed We lnotice that we have sporadic respiratory problems in the first of miles of riding in all the car From Hyundai Motor America - We expect reimbursement for the $88 service charge. Warranty draining the water and new filter annually. and an NHTSB approved fix of the problem and an NHTSB approved redesign of future models

On Saturday Morning (August 9th), I was driving this car with my family on I-495 heading to the shopping mall. The SunRoof glass broke suddenly without any impact from outside. I was so alarmed and exited the road and checked it. There was a crack in the front side glass. I drove back home and found that they had exploded and scattered. I drove a car to the Hyundai Car service center to claim it, but they ignored me. I claimed this on the Hyundai America site, but the answer is that they won't fix this under the warranty. This is a panoramic sunroof, and it should support our family in the car accident. But it is easily exploded without any impact from outside. It is a safety-critical issue, but Hyundai doesn't take care of this issue.

Horn not blowing. It started giving a low sound and now it has stopped working completely. I went online and saw where this problem is wide spread.

On two occasions, once at 70mph and once at 45mph vehicle suddenly lost power and displayed warning to check collision system, there were no vehicles close enough to warrant this. I had to limp the car to the side of the road as safely as possible and shut car off, wait a few minutes and restart vehicle to clear error and allow proper power/ acceleration again.

From a complete stop when pressing the accelerator, the vehicle does nothing. This can last 1 second or in longer episodes it can last 4-5 seconds. No lights on the dash. It’s random and happens sporadically. But when it’s bad, you have enough lag to count to 5 and turn on the hazards

At 22000 miles wheel speed sensor went out, all control system shut down and car became unstable. At 44000 miles fuel injector went out, was driving on freeway and car started shaking and losing power, then in parking lot would not start at all, had to be towed to dealer. This is way to many breakdowns for a car with such low mileage.

While driving to work today [XXX] on or around [XXX] on [XXX] from Riverview to downtown Tampa while doing about 68 MPH, my emergency brake deployed for about 6 seconds. The whole vehicle shook. There were no other vehicles around. Quite scary. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am reporting a serious and recurring safety defect with my 2023 Hyundai Santa Fe Hybrid, purchased new in January 2024. The vehicle has suffered from over 30–40 sudden hybrid system failures, including loss of acceleration, “Stop Vehicle” warnings, and check engine lights. These incidents happen without warning, including while driving at legal speeds (40–70 mph), on residential streets and highways. Most recently, the car failed twice in two days, while my teenage son was driving within all road laws, including once with a friend in the car. The vehicle simply stopped accelerating in the middle of traffic, endangering them and everyone around them. These failures have happened at legal speeds ranging from 40–70 mph, on both residential roads and highways. There is no advance warning, just abrupt loss of power and sudden warning messages. We’ve taken the vehicle to the South Charlotte Hyundai dealership multiple times. Each time, they either reset the check engine light or replaced indicators: but never addressed the root hybrid system failure. We filed a lemon law case, and Hyundai responded with only a $2,000 offer including legal fees, requiring us to keep the dangerous vehicle. We rejected the offer. These failures have occurred with children and passengers in the car. We have documented as many incidents as we could, including photos, service records, and communication with Hyundai. The vehicle is available for inspection upon request. I no longer feel safe driving or allowing my family to drive this car. This is a critical hybrid system failure that continues to place lives at risk. I believe this may be part of a wider pattern affecting Hyundai hybrid vehicles, and I am pleading with the NHTSA to open an investigation before someone is seriously injured or worse.