2023 Hyundai Santa Fe Hybrid

We were driving in Montana down [XXX] and heard a very large “pop” sound above us. Our vehicle was traveling alone in the area at the time, no other vehicles were around ours. There was no debris on the road or flying in air at the time, either. At this point the panoramic roof glass was closed but the interior cloth cover was open and there was no evidence of any damage. When we stopped for gas, the front glass panel covering behind the windshield and before the panoramic roof glass, was completely shattered. The weather was the same as it had been, 80F with minimal cloud coverage. There was no sudden change in weather/driving conditions.

One of the 2 horns has stopped working. After checking the Hyundai Forum website, I've found that one or both horns has suddenly went dead on not just Santa Fe's, but virtually all Hyundai models across the board. This seems to be a widespread defect. This is very dangerous because the cessation of operation is sudden and without warning (ie, no dashboard warning light). If there is a need for the driver to sound a horn in a time of danger there may be absolutely no way to give a warning.

4 times there has been an error message with a large P symbol and a red triangle on the dash board. The large P is surrounded by a yellow circle and it says below to check P Button. This is an intermittent situation and does not always do it when at the dealer, BUT they have witnessed it. They tried 2 fixes but neither worked. I am concerned since there is a red triangle at the bottom of the dash that this is a serious issue. Hyundai will not expedite this and will not allow me to speak to anyone about it that might be able to explain what might be causing this issue. Customer service just says we couldn not replicate the problem. I told them I understand this. I WISH to know what is causing the computer to send this message and they will not tell me or look into far enough to determine what it is. I am not driving the vehicle until they can tell me if it is a safety issue or not and they will not do that.

While driving at approximately 70 mphs the panoramic sunroof exploded. It sounded like a gunshot in the car. The front windows were slightly cracked and the rear windows were down for my dog. The sunshade was back to let in light and the sunroof was fully closed. Temperature outside was 60 degrees. I had been driving for 5 hours from southern California to the Phoenix area. Glass went every shattering in the car, so much for shatterproof glass. No other cars were in sight on the two lane Carefree Hwy and no objects hit the vehicle. Sunny but cool day in the desert.

Incomplete weld(s) in frame/body at drivers side rear passenger seat floor area. Dealer has vehicle and is unable to repair frame/body weld(s) without removing body from frame. Frame/body flexing in the area of hybrid batteries are will continue to worsen over time causing possible short in wiring and or batteries causing fire. Dealer has confirmed issue. Manufacturer is buying back above vehicle at this time. Only warning sign was a persistent rattle in frame/body in driver’s rear passenger floor.

On nine separate occasions between mid-June 2023 (mileage appx. 600) and July 21, 2023 (mileage 1994), my vehicle lost power (decrease or loss of power and/or hesitated, sputtered, or stalled) when I was accelerating from a stop or slow speed. During these times, I have noticed that the air conditioner starts blowing only warm air. The only way to correct the issue has been to turn off the engine and then restart it. No error codes have ever been generated, and only twice did warning lights come on (engine oil light and battery light). I will upload my documentation file (to date) with the specifics of what happened along with dates and mileages this has happened. This happened one time on the freeway; I had to pull over to the side to stop/restart my engine. It was very unsafe and put my family at risk. This is a significant safety issue, and I do not feel comfortable driving because if I pull out into traffic and experience this loss of power, I could easily get hit by oncoming traffic. The vehicle has been at the Hyundai dealer since July 5, 2023 (three weeks tomorrow), and it is still there. They had not been able to replicate the problem. I went to pick up the vehicle on July 21, 2023, and as soon as I left the parking lot, the problem happened. I did a U-turn to come back to the dealer, and the vehicle lost all power. I had the vehicle in reverse, and there seemed to be no engagement of the transmission. Even with the gas pedal pushed all the way to the floor, there was no engine revving and no movement of the vehicle. The Hyundai technician and service advisor came to see the issue firsthand (since they had not been able to replicate it). The issue was only resolved when the vehicle engine was turned off and restarted. The vehicle remains at the dealer for further testing. Yes, I will gladly make my vehicle available for inspection upon request.