2025 Hyundai Santa Fe

Multiple occasions of the ADAS lane centering system operating unsafely. The worst one was on a gentle left-hand curve on a concrete surfaced bridge at night. The system allowed the vehicle to slowly drift to the outside of the lane. When it was fairly close to the white line, it jerked the wheel back to the left and then released the steering to my control while pointed hard into the oncoming lane. It will do similarly during the day when approaching a center turn lane on the highway. Sometimes it will decide that it should be in the turn lane, will make a rapid input, and then return control to me, now pointed at the oncoming lane. When the vehicle returns control to me, it indicates it by making the steering wheel and lines in the HUD grey, no chime, no warning icon, just green to grey and release the wheel in whatever direction it's pointing. It also sometimes slows drastically for vehicles that have exited the highway when on cruise control or applies hard braking for vehicles in the other lane while in a curve on a hill. There are no lights or malfunction warnings and the vehicle self-diagnostic says everything is operating correctly.

Consistently after 10-20 minutes of driving with steering assist or immediately upon driving on cold days (under 50F), the steering wheel generates loud squeaking noises with the steering wheel stiffening and becoming harder to turn, creating a potential safety issue. The change is gradual but required a full stop of the car, shutdown, and restart to remedy. This issue has persisted for months and other Hyundai owners have shared the issue on various forums with Hyundai’s solution to replace the full steering column in some instances. Many owners seem to not be able to get help as dealers are not able to easily replicate this issue without lengthy drives.

Battery/Electrical: 3 separate occasions the battery drained completely overnight, requiring mechanical key to open and jumpstart services from AAA (covered under Hyundai services). Risk of leaving me stranded on isolated areas. Problem confirmed via 3 requests for AAA to jumpstart my vehicle. Hyundai service dept inspected vehicle, confirmed low battery levels, unable to reproduce issues overnight, reported no electrical or mechanical issues that would cause battery drain. No warning messages, lamps, or symptoms prior to each failure. Steering wheel column has friction squeak when using driver assist and adjusting direction. No issues at this time.

The contact owns a 2025 Hyundai Santa Fe. The contact stated that while stopped and making a left turn from a cross street, the accelerator pedal was depressed, and traffic allowed the contact to make the turn; however, the steering wheel jerked to the right, and the vehicle jumped over a median strip. The contact stated that there were no warning lights illuminated. The contact stated that the right front passenger’s side tire rolled over the median strip, and then the rear passenger’s side tire next. The contact depressed the brake pedal, and the vehicle stopped in a parking spot on the side of the street. The contact shifted the vehicle to park(P) and turned off the vehicle. The contact observed that the right front passenger’s side tire was flat. The contact called Roadside Assistance, and the technician informed the contact that there was a cut on the inside side wall of the front passenger’s tire. The contact had taken the vehicle to a local dealer, where it was diagnosed, and determined that the passenger’s side front suspension arms and other parts needed to be replaced. The vehicle was repaired; however, the vehicle was difficult to steer while the steering wheel was vibrating. The contact took the vehicle back to the same dealer, who removed the aftermarket parts and replaced the parts with OEM steering and suspension parts; however, there was still a vibration in the steering wheel. The contact stated that several times, while turning to the left, the vehicle would turn to the right instead. The manufacturer was not informed of the failure. The vehicle was not repaired. The failure mileage was approximately 11,000.