2023 Hyundai Santa FE complaints

Driving on highway with cruise control selected to 80 mph. Left signal is applied to travel to left lane to pass a semi trailer. When the vehicle is half way into the left lane, the automatic system applies hard braking even though the semi trailer has not been detected as too close. Vehicle slowed to 74 to 75 mph before cruise control was turned off. Vehicle behavior is a total surprise to vehicles following since the braking is unexpected on a clear road. Repeated the symptoms several times. This braking does not occur if the vehicle ahead in the right hand lane is an automobile. This only occurs if it is a large vehicle such as a semi. Moving quickly or slowly to the passing lane affects the total time the braking is applied. The slower the movement, the longer the braking is applied. Repeated this behavior at 75 mph and 70 mph with similar results.

While driving under normal conditions with vehicle in Drive, transmission shifting into Neutral with no driver input or action and the engine remained running. Transmission indicator remained in Drive, and engine would rev, without forward propulsion. This occurred three times is close proximity, within 30 minute period. Each time, shutting down the vehicle, waiting approximately 5 minutes to restart, the vehicle would then shift into Drive normally and move under power. There were no warning messages or indicators prior to or during the three episodes. Dealer was unable to diagnosis any errors, even using GDS. If the vehicle had been moving at highway speed or on a more congested roadway, this could have posed a significant safety risk to the occupants and any nearby vehicles, as the driver may have not been able to safely pull off the roadway when the vehicle lost propulsion (shifted to neutral).

Car was purchased January 21st had 3000 mile on it when service was needed for these issues. On march 23rd as I started driving my car wouldn't go above 30 mph, when pressing on the gas pedal the car wouldn't accelerate, the rpm gage would go to 4 but engine wouldn't make noise car wouldn't speed up. I put the car in park and back in drive with no improvement. I pulled off at a gas station restarted the car and it was fine. During this time the auto on off button was orange on the cluster which I had never seen it that color before. Was looked at by the dealer but wasn't reproducible. Not sure the cause, but safety was in jeopardy due to not being able to go with speed of traffic. Also a couple weeks after purchase brakes began to squeal, took car to dealer on march 28th was told brake pads were sanded and cleaned, upon leaving dealer brakes continued to squeal, car is now back at dealer, supposedly needing front rotors and pads replaced. Dealer won't drive car until rotors replaced. Safety was in jeopardy cause of possible brake failure and resulting accident.

While traveling on state highway I heard a sudden, loud pop, similar to a gunshot sound. I looked everywhere and noticed that the sunroof was shattered. It is panoramic and was open. The rear, unopened section was completely shattered. Upon closer inspection there is a jagged hole about 1.5 inches in length in the sunroof. Although the rear part of the sunroof was intact, there were shards of glass scattered throughout the cabin.

4/27/23 - Panoramic sunroof exploded going over a bridge. Front glass panel only. No advance warning. Shade was closed and no glass entered cockpit. Local PD responded and saw no evidence of impact or criminal activity. Vehicle is at local dealership for warranty repairs.

2023 Hyundia Santa Fe bought brand new from the dealership. During the course of the last month and a half the vehicle has done things with unknown origin. The panic alarm will randomly go off when the vehicle is turned off, no one is in it, or even near it. By locking the vehicle with the remote, the alarm will tend to go off about 20-30 seconds after the vehicle is locked and will sometimes not stop until the vehicle is restarted. The transmission will shift very roughly almost to the point that it feels like you are driving a manual transmission vehicle. The transmission lags in gears between 60-70 miles per hour and you feel a very rough back and forth shifting with in the transmission. Next the emergency break would engaging and then not releasing or reengaging when parked on a hill, flat service or anywhere. The break light on the dash would light up, blink, then it would go off, making it unknown if the emergency break was acting engaged or not. The dealership I purchased it from did replace the EMS module along with breaks and rotors on the vehicle. The auto shut off or the idle shut off will also randomly work, and not work. it will cut on and off even if the button is pressed to shut it off or prevent it from coming on. Now the air condition, along with the heat and heated seats has started to not work, randomly cut on, will not cut off etc. While driving i have had the heated seats turn on, along with the heat and not go off, nothing would cut off until the vehicle

I bought a brand new 2023 Hyundai Santa Fe. Not even one month later the panoramic sunroof exploded while I was driving on the interstate at 75 mph. There were no warning lamps, messages or other signs that this would/could happen prior to the incident. I was not informed by the dealership that this could happen, but they were aware it could happen. I was told by the Sales Manager, “We wouldn’t sell the cars if we informed consumers”. I had the screen cover closed, so I was very fortunate because it could have caused a major accident on the interstate if it was open and glass exploded all over me and got in my eyes. Hopefully the vehicles behind me did not have any damage to their vehicles from the glass. I was not told if it is available for inspection. I was only told that it would be replaced. This problem is happening since 2012. There have been multiple class-action lawsuits with multiple car brands that have panoramic sunroofs.

Stopped at left turn lane light. Light turns green and vehicle engine revolutions increase as I press on gas pedal but car does not move. Cars behind me lean on their horns and take evasive maneuvers to go around me. Car finally goes very slowly and transmission disengages in middle of left turn leaving vehicle in middle of intersection with oncoming traffic. Luckily everyone stopped and vehicle very slowly moved through the intersection to side of road. Vehicle is brand new and in my possession less than 48 hours. Vehicle is at dealership for troubleshooting.

All lights that come on when you first start the vehicle stay on. ABS, forward collision, rear collision, side mirror check, down hill brake, etc. The brakes and brake pedal would lock up when attempting to brake. Pedal stays locked but the wheels didn’t seem too. Brake system wouldn’t respond to pumping the brakes the pedal stayed frozen. It could have caused me a serious accident.

Windshield cracks

Windshield cracked and webbed

I bought this Lemon on 1/14/2023. The front collision detection doesn't brake to avoid collision. The Emergency brake will engage on it's own, and it has to be manually disengaged. The parking assist feature will automatically disengage and is unable to engage it. The middle seat in the back seat headrest obstructs a major portion of the rear window, obstructing the driver's view. It is not the headrest pictured in the Owner's Manual. It has been in the shop twice. It has been in the shop for 10 days and counting of the 34 days I have owned this lemon of a vehicle. The car was taken to the dealer for repairs but consumer was told the vehicle functioned properly. The consumer stated the car was still malfunctioning so vehicle was taken back to dealer for repairs and still being assessed.

I purchased this SUV new and noticed an issue with the automatic intermittent wipers. The dealership has replaced the windshield sensor and issue is now unreliable at best. Service department told me to simply wipe the sensor off or pour water onto the sensor to get the wipers to work. That seems to work for about 3 wipes and then stops again. Also, the driver seat changes position by itself while driving, and the advanced cruise control failed to provide any braking and almost caused me to rear end a stopped car in freeway traffic. Additionally the advanced braking system does not work at all... I had the salesman check the settings and they are turned on, but do not provide any braking function. The alert system does provide a warning if a car turns a corner in front of me, but fails to take any action.

Forward collision warning system engaged unexpectedly, braked hard to the point of smelling burnt tires. No collision imminent. Normal driving conditions. On a second occasion, stopped at a traffic light, the vehicle suddenly warned of foward parking collision. Front camera engaged and yellow warning showed