2020 Hyundai Palisade

Dear NHTSA, I am writing to report a safety concern regarding my 2020 Hyundai Palisade. Recently, when I attempted to operate the sunroof, it only opened partially and made a crackling sound. Upon closer inspection, I noticed that some of the internal plastic components were breaking apart, and now the sunroof does not close properly. After researching this issue online, I discovered that numerous other owners are experiencing the exact same problem. For reference, here are a couple of user-reported discussions highlighting similar experiences: [XXX] [XXX] Additionally, I came across a Technical Service Bulletin (TSB) related to this very issue, which can be found here: [XXX] However, when I checked my vehicle’s VIN, it did not appear to be included in the list of affected models, despite my vehicle exhibiting the same symptoms described in the bulletin. This leads me to believe that the scope of affected VINs may not have been fully identified. Given the number of similar complaints shared by other Hyundai Palisade owners, it appears this may be a more widespread issue than initially recognized. I respectfully request that NHTSA consider investigating this matter further, as it may help protect and support additional Hyundai customers who are dealing with this problem and have not yet been offered a resolution. Thank you for your attention to this matter. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Description of Incident: The engine in my 2020 Hyundai Palisade Limited failed and ultimately seized despite having been regularly maintained and receiving an oil change less than 3,000 miles prior to the failure. The component that failed was the engine, and according to the dealership, it is seized and no longer operable. The vehicle is currently at the dealership and available for inspection upon request. Safety Risk: The failure posed a significant safety risk. The engine began shaking while the vehicle was in motion, creating a sudden loss of power and drivability. I pulled over immediately and discovered that the engine oil dipstick was dry. I added oil right away, but the engine shut down shortly after. The abrupt loss of engine function while driving could have led to a serious accident had I been in traffic or at highway speed. Reproduction / Confirmation: Yes, the issue was confirmed by Hyundai at Courtesy, a certified Hyundai dealership. They diagnosed the engine as seized and also confirmed that oil was present at the time of inspection, ruling out owner neglect. Inspections Conducted: The vehicle and failed component (engine) have been inspected by the dealership, who submitted a case to Hyundai. However, the case was denied for goodwill coverage despite the circumstances. The manufacturer has been notified but has not physically inspected the engine themselves beyond the dealership’s report. Warning Lamps or Symptoms: No Check Engine Light, oil pressure warning, or any dashboard message illuminated prior to or during the failure. The only symptom was engine shaking, which began just before the engine shut down. The oil loss occurred silently and without warning, making the issue especially dangerous and difficult to detect in time.

Engine is burning Oil at a rate that requires me to put 2 quarts of full synthetic oil every 2-3 weeks in my car. Hyundai is ignoring this problem and dealership says my engine is burning in a normal range. This is a known issue with these engines at hyundai over the past few years and if it is burning that much oil without any leaks there is no way that is safe.

1. Left-Side Captain Chair: Upon braking or movement slightly --the seat will come unsecured and jolt forward - causing whomever passenger who sits in it to move forward. 2. Tailgate Locking Lever: Trunk no longer opens upon pressing the button on the exterior. Trunk only opens upon utilizing the safely unlocking feature inside the vehicle - for emergencies only. Should not fail after 4 years. 3. Engine Burning Oil: July 2024 refilled oil change - December 2024 - Four (4 ) quarts of oil lost - vehicle is burning oil at unreasonable rates

1. What component or system failed or malfunctioned, and is it available for inspection upon request? The engine failed, as it was deemed "shot" by the dealership. Yes, the engine and vehicle are available for inspection upon request. 2. How was your safety or the safety of others put at risk? The vehicle began to stall while driving, which could have caused an accident, especially if the vehicle stalled in traffic or at high speeds. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the problem was confirmed by the dealership, which diagnosed the engine as needing replacement due to a lack of oil. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle has been inspected by the dealership. 5. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? Yes, the vehicle exhibited strange noises in the last week of October 2024 and symptoms of stalling in early November 2024. The check engine light turned on while driving to the dealership, just before the final diagnosis.

While sitting at a stoplight with no moving passing traffic around my vehicle. There was a loud pop/crash sound that came from the roof. I pulled my car into a parking lot and found my sunroof had a large hole in the middle and was shattered. The glass is pushed upwards. My internal shade was closed, which kept glass from falling inside and on me. I was not hit by a foreign object, by all indications the glass spontaneously exploded.

On Friday 6/28/24 I turned my vehicle on to drive to lunch. I put the vehicle in drive and started to move forward out of my parking spot when the following errors flashed on my dashboard in succession: "Check Forward Collision-Avoidance Assist System", "Check Lane Departure Warning (LDW) System", and "Check High Beam Assist System" and then the steering wheel locked while the vehicle was still moving forward. I put the vehicle in park, turned it off, turned it back on and there were no problems. On Saturday 6/29/24, the same series of events happened in the evening when turning the vehicle on from park. On Sunday 6/30/24 I turned the vehicle on in the morning and backed out of my driveway. When I put it in drive and started going down the road the same series of events happened again. This time, it did not resolved when I turned the vehicle off then back on, but happened 7-8 times in succession. The vehicle was not driven all day and when I turned it back on Sunday evening it seemed fine. I drove across town to meet a friend, put the vehicle in park to wait, then in drive (so it had been running for approx 30 minutes) and the issue happened again. On Monday 7/1/24 I had the vehicle towed to the dealership and the issue happened to the tow truck driver as he was getting the vehicle off of the truck. On Friday 7/5/24 I called the dealership and they have "verified my concern" but are not sure why it is happening. I am now waiting to hear back from them on this issue. I have read on an online forum that multiple people have had this same issue with the Palisade.

UNKNOWN The sunroof shattered as we were driving down the interstate. To our knowledge nothing hit the sunroof to make it shatter. We did not see any rocks or debris. This is a safety issue as if we wouldn’t have had the inside shade closed we would have been showered with glass while driving at highway speeds and could have been injured.