2020 Hyundai Palisade

I am reporting a serious safety defect involving the A/C system on my 2020 Hyundai Palisade. The A/C system has failed due to a manufacturer acknowledged defect in the compressor pulley and hub assembly. Hyundai has issued multiple Technical Service Bulletins (TSB 21‑HA‑003H, 24‑HA‑003H, 25‑HA‑003H / 003H‑1) documenting this exact failure pattern. These TSBs confirm Hyundai is aware of widespread A/C failures in this model. Despite acknowledging the defect in writing, Hyundai has refused to repair the vehicle, citing “time in service and mileage,” even though the failure is directly tied to a known defective component. This refusal leaves a safety‑critical defect unaddressed. This is not a comfort issue. This vehicle is used for medical transportation of a medically needy child who requires strict temperature regulation. Loss of A/C in Florida heat creates a dangerous and medically hazardous environment inside the vehicle. The cabin temperature rises rapidly, creating a risk of heat‑related medical complications. This is a clear safety hazard, not a cosmetic or convenience problem. The A/C failure is sudden, unpredictable, and cannot be mitigated by the driver. The defect results in: Complete loss of cooling in high‑heat conditions Inability to maintain medically safe cabin temperatures Documented component failure acknowledged by Hyundai Manufacturer refusal to correct a known defect Increased risk of medical harm to a vulnerable passenger Hyundai’s denial of assistance despite multiple TSBs proving the defect demonstrates a failure to address a safety related mechanical issue that directly impacts occupant health. This defect should be investigated as a potential widespread safety problem affecting 2020 Hyundai Palisade vehicles. I am requesting NHTSA’s review and investigation into this defect due to the significant safety risk, the manufacturer’s documented knowledge, and the potential for medical harm caused by the failure of the A/C system.

I am experiencing an issue with the power liftgate struts on my 2020 Hyundai Palisade SEL that appears to be a common problem among other Palisade owners. The liftgate support struts are beginning to fail, causing the liftgate to no longer stay fully open. When the liftgate is opened, it slowly falls back down instead of remaining securely in the fully open position. The struts appear to have lost their ability to properly support the weight of the liftgate and are essentially failing. This is particularly concerning because the liftgate can unexpectedly fall while someone is loading or unloading the vehicle, creating a potential safety hazard. Given the number of similar complaints from other Palisade owners, this appears to be a recurring issue with the liftgate struts. I would like Hyundai to recognize this as a potential common defect and provide a proper repair or replacement of the failing liftgate struts.

Sunroof was opened and a slim metal piece fell down into the car landing in the console. I wasn’t sure where it came from so I tried to close the sunroof. It would slide to close but would not go down the last inch or so on the back. I tried to open and close it a couple times to see if it was just sticking and another slim metal piece fell down. I am afraid to drive much and over 25-30 mph because I am afraid the roof may fly out. A long silver piece was flopping around (I assume a wind deflector) so I laid it in the backseat. It’s a shame that I have a vehicle that’s basically unusable on rainy or windy days and can’t drive over 30 mph because roof may fly out and hit someone. I also cannot lock and set alarm because roof shows open and horn blows. I care for my elderly parent with dementia so this is not helpful when nearest doctor visits or Hyundai dealer is minimum 45 minutes away drive.

High engine oil consumption. Had oil changed 2/2/26 and almost got killed 4/29/26due to low oil. Car stalled crossing busy highway and barely made it to resting stop. Was able to restart car and took to mechanic and no oil showing on dipstick. They changed and I researched and see where others have concern about high oil use on hyuandai palisade and no warning light to alert driver evidently the warning light only comes on when too late and damage done. Low oil will cause stall out which is what happened to me today. Thankfully my guardian angel protected me and let me get across highway w incoming traffic at 75 mph

While traveling to Abilene Tx to see my doctor my check engine light came on. I pulled into the Hyundai dealership and ask the service advisor to plug into my vehicle and let me know what was going on. After he talked to his service manager he advised me that they "where to busy" and the earliest they could get me in would be the next Monday. This was Wednesday. My home is 100 miles from Abilene. I asked if he thought it would be alright and he said sure. I barely made it back to Big Spring before it started clinking and cluttering. It sound horrible. My son said it sounded like it through a rod. He checked the oil and said that I had low oil however my low oil light did not come on. I notified the dealership and was advised that I had to have it towed back to the shop in Abilene which I did. After a week passed I was in Abilene and stopped to check on my vehicle. Needless to say my repairs are in excess of 20K. New engine etc. and rear suspension is out also. After researching I have found I'm not the only owner with these problems. There are numerous complaints about these problems with the Palisade. This is a danger to all who own this vehicle. Fires, accidents and no telling what can affect us. All these vehicles need to be recalled because of the engine that was placed in these vehicles. The engine is eating oil fast. My oil changes were on time. Hyundai and the dealership are unwilling to offer any help in repairing my vehicle. The parts on the suspension are sub standard. I can't believe they are called the #1 SUV in America! Buyers need to be aware of the substandard parts and engine. They also need to be aware the Hyundai doesn't stand behind their product or the dealership either for that matter. I shutter to think of who I could've been on the side of the road with a blown on fire engine. I'm thankful I made it home before the vehicle cratered.

1. What component or system failed or malfunctioned, and is it available for inspection upon request? "The tempered glass panel of the panoramic sunroof spontaneously shattered while the vehicle was in motion. The glass exploded outward with a loud report similar to a gunshot. Yes, the vehicle and the remaining glass fragments are available for inspection upon request 2. How was your safety or the safety of others put at risk? The sudden, explosive noise caused an immediate distraction and startle response while traveling at highway speeds (approx. 70 mph), creating a high risk of a collision. Furthermore, glass shards fell into the cabin onto the driver and passengers, posing a risk of lacerations and eye injuries. Shards also blew out onto the interstate, creating a road hazard for following vehicles. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Not yet. The vehicle is currently being scheduled for inspection 4. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? "No warning lamps or messages appeared. There were no prior symptoms of glass stress, such as cracking or creaking. The failure was instantaneous and spontaneous with no prior indication of a defect."

August 2025: While driving down the road and approaching a light, I slowed down to turn and make a left. As I braked, all lights on the instrument panel lit up and the car completely turned off. After several attempts to start the car again, the car started. After taking it to a shop, it was determined that the car had consumed all oil, despite being within the recommended milage range for oil change. I filed a complaint with Hyundai, who emailed me to talk to my local dealership. I responded and have yet to receive a response to my communication, as of February 20, 2026. Hyundai dealership has told me that I need to fail three oil consumption tests (I have), complete a combustion cleaning (it has recently been completed), and fail one more consumption test before they can submit to corporate for a new engine. In the meantime, I have experienced my car shaking, the smell of burning oil, my car "jolting" forward while driving at sustained speeds, and a tailpipe that is completely black with 67,800 miles currently on the car.