2017 Hyundai Santa Fe Sport Complaints

NO power till car warms up for 5 minutes. It will be jerky on highway. The gas mileage is going down drastically, I was doing 32 miles to gallon and now it's 22mpg. All this is after the recall we just had performed. I have no power trying to avoid accidents, taking off from stopping. Car smells weird now.

The contact owns a 2017 Hyundai Santa Fe Sport. The contact stated that while driving approximately 35 MPH a loud noise and smoke was suddenly present coming from under the hood of the vehicle and the engine stalled. The vehicle was towed back to the home. The contact indicated that during the failure no warning messages or lights had displayed. The cause of the failure was not yet determined. The local dealer and manufacturer were not yet contacted. The VIN was not available. The failure mileage was 83,000.

am filing a formal complaint regarding an official software update provided by Hyundai that completely corrupted the infotainment/head unit system in my 2017 Hyundai Santa Fe Sport. I purchased this vehicle from CarMax less than three weeks ago. The vehicle came equipped with Hyundai Blue Link, so I contacted Hyundai support to activate the service by pressing the Blue Link button inside the vehicle. Hyundai informed me that my vehicle required a software update because the current system did not contain the necessary software for Blue Link to function properly. A Hyundai representative directed me to Hyundai’s official update website and provided instructions for completing the update. Following Hyundai’s instructions exactly, I purchased and formatted a USB drive, downloaded the update using my VIN from Hyundai’s official website, properly extracted the files, and installed the update into the vehicle. During the installation process, the update failed and corrupted the head unit sys...

I was driving on a main road at 55-60 mph with my daughter and grandchildren in the car and had a sudden loss of power. I was almost hit from behind. The check engine light started blinking. And the car went into limp mode. I had to limp it to the nearest place to safely get off the road so as not to put my family in any other danger.There is not enough shoulder on the road to pull over safely. It was very stressful. Was able to get it in someone's driveway and then eventually towed to Auburn,NY Hyundai/Chevrolet where it is currently. It would not turn over to start again. It does have battery power. I am waiting to hear from the service techs as to what they think is wrong. They advised me that there is a $199 per hour diagnostic fee. I also told them that we noticed metal flakes in the oil when we checked it. I feel I should mention that the vehicle went into limp mode a few weeks ago also and the dealership told me the knock sensor was bad. I had that replaced at that time.

THIS IS AN UPDATE TO EXISTING NHTSA ODI COMPLAINT #11735718 2017 Hyundai Santa Fe Sport, TXXI Theta II engine defect. UPDATE: On May 7, 2026, Hyundai Case Manager acknowledged in writing "Your case is important to us" and "2.4L THETA concerns" for Case #42623761. This is written admission the vehicle has the TXXI defect covered by warranty extension to 120,000 miles. I gave Hyundai 48 hours to provide written authorization for oil consumption test per their TSB 22-EM-003H. After 3 days they are silent. They refuse email communication despite documented language barrier. Current Vehicle Status: - Active DTC P0010 causing loss of power and stalling risk - Oil Consumption: 1 liter per 600km, which is 3x Hyundai failure threshold in TSB 22-EM-003H - 95,772 miles, under TXXI 120,000 mile warranty limit - U.S. Spec vehicle covered by TXXI Warranty Extension Hyundai is violating Magnuson-Moss Warranty Act by refusing to honor written warranty for known safety defect. The P0010 defect ca...