NHTSA Complaint #11566979 — 2017 HYUNDAI SANTA FE

I own a 2017 Hyundai Santa Fe and have noticed excessive oil consumption in between regularly, scheduled oil changes with my personal mechanic for the past 8-9 months. At NO TIME did any error or sensor codes or warning lights come on. At one point, it was down 5 qts of oil! I reached out to my local dealership for an oil consumption test, but they were booked out and I was told to watch it. The service rep indicated since I had an extended warranty, the powertrain is good for up to 100,000 miles. On Nov. 24, 2023, without any warning sensors going off, the engine suddenly went into limp mode - no acceleration from 70 mph to approx. 45 mph on Hwy. 5. We immediately exited and when we restarted the engine, the check engine light came on. We immediately called AAA to tow our car home 90 miles. Our mechanic confirmed from the error code that Master Cylinder #2 had loss of compression. The engine only had 74,400+ miles and the oil was low again, despite having it full when we left for our trip. We had a scheduled appt. with the local dealership for Dec. 18th, but were able to tow it in on Dec. 7th. Hyundai Corp had agreed to pay for the full diagnostic fee, however, when they inspected it, they too got the error code for loss of compression and that the car needed a longblock replacement. Hyundai Corp denied it on Dec. 7th. All recalls have been performed. I tried calling Corp for assistance and my case was escalated but they again denied any help due to no warranty. The dealership offered $2,500 trade-in value, however, I feel that this amount was low-balled and they claimed it would cost them $15,000 for it to be re-sellable to replace the engine and a laundry list of other items that needed replacement (i.e. battery, hoses, etc.). We immediately went to claim my vehicle from the dealership and have it parked in my driveway awaiting results of a BBB claim The vehicle is currently parked in my driveway and is inoperable. The value has decreased