The vehicle will not accelerate past 30 mph on the highway. The fuel system will not engage, and the vehicle continues to run on hybrid mode which causes the battery to drain and acceleration to throttle. This occurs on all drive modes and fuel conditions.

Source: NHTSA complaint ODI #11750021 · view all complaints for this vehicle at nhtsa.gov

The rear power liftgate on my 2024 Hyundai Santa Fe Hybrid (VIN [XXX]) repeatedly opened and closed on its own, without any command from the key fob, interior button, or any occupant. This occurred over a period of several months. It happened while the vehicle was parked and, more dangerously, while the vehicle was in motion at normal driving speeds. An un-commanded liftgate opening while driving creates a serious safety hazard: loss of rear visibility, the risk of unsecured cargo being ejected onto the roadway, and the gate striking a person or object when it deploys unexpectedly. The overnight, un-commanded cycling while parked is extensively documented on my home security cameras, which recorded the gate opening and closing repeatedly throughout the night. The dealer (Williams Hyundai, Lansing, MI) diagnosed the cause as a faulty resistance fault in the rear hatch wiring harness assembly, which sent false signal inputs to the vehicle and triggered the motorized latch and actuators. The repair was completed under the New Vehicle Limited Warranty. A secondary effect of the continuous overnight cycling was repeated deep-discharge of the 12V battery, leaving the vehicle dead on multiple mornings. I am reporting this because the un-commanded operation of a motorized liftgate — particularly while the vehicle is moving — is a safety defect that may not be isolated to my vehicle. I have retained service records, the dealer's diagnostic notes, and the home security footage, and can provide them on request. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Source: NHTSA complaint ODI #11747271 · view all complaints for this vehicle at nhtsa.gov

I keep getting the alert “Check Forward Attention Warning system”. It’s nonstop even when I’m not driving the vehicle. I have taken it in to the dealership 4 times. This started only after the most recent software update that Hyundai released. The dealership did everything they could, and contacted Hyundai who told them to replace the camera on the steering wheel (which they did). They thought that would fix the problem, and it did not. I believe this is something with the new software update since other users on forums are complaining about this exact alert. It’s sporadic, it happens very frequently though, but it is unpredictable. All of this points to a software update and Hyundai has not fixed this bug in over a year. It’s beyond frustrating that there is no fix and they are just making their customers deal with this issue with no apparent fix.

Source: NHTSA complaint ODI #11754264 · view all complaints for this vehicle at nhtsa.gov

The contact owned a 2024 Hyundai Santa Fe Hybrid. The contact stated that while stopped in highway traffic, the vehicle was rear-ended as part of a multi-vehicle collision. The contact's vehicle was identified as the fourth vehicle in the crash sequence. The entire rear bumper area sustained significant damage. The first vehicle that originated the crash was distracted by his phone, which caused him to crash into the rear of the second vehicle, causing the second vehicle to crash into the rear of the third, resulting in the contact being rear-ended. No property damage. The air bags did not deploy. The vehicle was rendered inoperable, towed to a repair facility, and subsequently declared a total loss by the insurance adjuster. The driver sustained multiple injuries, including a ruptured right breast implant, two lower back herniations, and a neck herniation. A minor child occupant seated on the front passenger's side also sustained a neck herniation. The driver and minor child occupant received medical treatment following the incident. The contact also had her service dog in the rear, and due to the severity of the impact, there was difficulty removing the service dog safely from the vehicle. The contact expressed concern that the seatbelt system did not provide adequate restraint during the collision and related the issue to NHTSA Campaign number 26V218000 (Seat Belts). The dealer and manufacturer had not been notified of the failure. The approximate failure mileage was 30,000

Source: NHTSA complaint ODI #11731124 · view all complaints for this vehicle at nhtsa.gov

Our 2024 Hyundai Santa Fe Limited Hybrid, which was purchased brand new in Massachusetts in 2024 has been rattling at the passenger side B-pillar since [XXX] and has been in the dealership now 5 times for repairs and 16 service days. They have found that the vehicle is missing spot welds from point of assembly. Hyundai, as repair attempt #5, provided the dealership with documented instructions to hammer and chisel the frame 6.5 inches apart and insert foam NHVpads to see if the rattling would stop, it did not. Hyundai Techline instructed the dealership to repeat this step again. The dealership refused citing major safety concerns with the frame of the vehicle. All documentation including Hyundai Techline guidance is available and submitted with this complaint. Thank you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Source: NHTSA complaint ODI #11730909 · view all complaints for this vehicle at nhtsa.gov

Everytime with Acc active it activates the Driver attention camera system which never works in sunlight camera reads wrong and disable Acc while driving on freeway all the time due to sun reflection cant even wear polairized glasses Acc never works.

Source: NHTSA complaint ODI #11682031 · view all complaints for this vehicle at nhtsa.gov