2020 Hyundai Palisade

This report describes a catastrophic engine failure, framing the event in the context of the widespread Hyundai GDI engine oil consumption issue and its impact on oil-dependent systems like the CVVT/OCV. ​Description of Incident @ 148,000 miles my vehicle oil was changed. ​On May 15, 2025, @ 151,000 miles my 2020 Hyundai Palisade was serviced at Patterson Hyundai Tyler (3120 S SW Loop 323, Tyler, TX 75701) for the replacement of the oil intake valve (OCV/CVVT solenoid). With reports of oil consumption. This type of service is often necessitated by sludge or contamination from excessive oil consumption clogging the valve screens and restricting oil flow to the VVT system. ​Shortly after this service, on 05/22/25, the engine experienced a catastrophic failure. There was an immediate and loud metallic grinding noise (consistent with severe internal bearing/connecting rod damage), followed by complete loss of engine power and instantaneous stalling. ​The failure is assessed to be a result of the underlying GDI defect related to excessive oil consumption, which can lead to internal engine starvation. This starvation may have been triggered or exacerbated by a failure within the oil circulation path (potentially involving the recently serviced OCV or adjacent components). The vehicle is part of the population of Hyundai GDI engines known for issues where low oil levels—due to consumption—or contamination lead to bearing and connecting rod failure. The vehicle has all maintence records and can provide them. ​The vehicle is currently located at Greenville Hyundai at 5395 I-30 Frontage Rd, Greenville, TX 75402 and is available for inspection upon request. Service Manager is Isaac.

Issues began in November of 2024 Began with a a oil consumption test and failed. Submitted for a new engine due to high oil consumption 3 quarts in 1,000 miles. Waited 6 months for a new engine to be available. July 2025 noted oil leaking brought in for repair and stated it was a boot joint that was leaking. Multiple return trips to repair since oil was still leaking. Check Engine light came on in , September and a faulty sensor in engine was noted (for mixing air and gas?), replaced sensor. Oil still continues to leak and after insisting they take the entire engine out to figure out where it was coming from a leaking faulty oil plug was noted on the rear side of the engine.

I am the 3rd time owner of this palisade. Car was bought after a transmission replacement at 27,000 miles. (Second transmission). At around 70,000 miles, we started to have oil consumption problems/ignition coil problems. After a slew of tests and other recommend procedures that cost us money out of pocket, hyundai recommended to get a new engine. We get the new engine. They call to tell us the new engine is done, and proceed to share the transmission is bad and it needs a new one (3rd transmission). They are asking us to pay for the transmission as well. We want a buy back as we think this is a lemon car. 3 transmissions and a new engine under 85000 miles is not good and definitely grounds for investigation. These repeated failures make it unsafe/unreliable for us to drive our 6 month old baby in, let alone my wife and my myself. . We request and investigation/buyback.

Our motor has been consuming a lot of oil, we were told that Hyundai knows about the issue and that there is nothing they can do. We got sold a poor excuse of a warranty in which they never told us that the warranty would not cover oil consumption, but we have the “best” warranty they had. Our car has died GOING DOWN THE ROAD WITH MY 4 kids and WIFE! Cars had to swerve to avoid a collision, 5 times this has happened but yet they will not do anything! We will be seeking legal help!

Engine started burning oil at 65000 miles. It has now run almost completely out of oil twice at about 4200 miles since last oil change, not even close to reaching the manufacturer recommended interval of 7500 miles between oil changes. On top of the engine consuming oil at an alarming rate, there are no warning indicator lights that turn on to let you know your oil level is critically low.

On roadtrip with family to daughter’s soccer tournament. Car started to shift funny then engine light turned on along with warning display saying something was wrong with the engine. We were only hour into driving so drove hour back home to dealership/service for Hyundai. They looked over the car and reported that we did the right thing by bringing it back and not continuing our roadtrip with it. The thermostat wasn’t working which would cause issues to engine with overheating and putting my family at risk with driving it on road trip with engine overheating.

Vehicle started rattling at 96k miles with no check engine light. Performed diagnostics and found that the vehicle had zero oil inside. Determined that there was no sign of an oil leak and that the engine had internally consumed all of the oil. The rattling still exists and when reported to Hyundai, they sent me away and said to come back after 1k miles to see if it’s consumed 1.1 quarts and only then they will clean the engine and see if that helps and if after another 1,000 miles I still am consuming oil, they will replace the engine. They are refusing to provide a loaner vehicle throughout this process as well.

Vehicle Information: Year: 2020 Make: Hyundai Model: Palisade Component(s): Air Conditioning System / A/C Compressor Problem Description: The air conditioning compressor on my 2020 Hyundai Palisade has failed and does not function properly. The A/C system does not blow cold air, making the vehicle extremely uncomfortable and unsafe in hot weather conditions, especially with small children riding in the vehicle. Hyundai has issued a Technical Service Bulletin (TSB) regarding a known defect with the A/C compressor in this model. Despite this, the dealership and manufacturer have refused to cover the repair or replacement under warranty or goodwill, even though this is clearly a widespread and acknowledged defect. I was quoted nearly $5,000 for the repair, which I cannot afford. Safety Concern: While the issue may appear to be only comfort-related, lack of functioning A/C creates real safety risks: Heat-related health concerns in hot climates, particularly for small children and elderly passengers. Reduced visibility if the defroster system does not work properly (since the A/C system is needed to remove moisture and fog from windows). Timeline of Events: Vehicle purchased: Purchased December 2023 First noticed issue: [XXX] Brought vehicle to dealership: [XXX] Dealer confirmed issue with A/C compressor but refused repair, citing that only certain VINs or conditions are covered, even though a TSB exists. Request: I am filing this complaint because Hyundai is aware of this widespread A/C compressor defect (per their TSB) but is not providing proper warranty coverage or resolution. This places an unfair financial burden on consumers and presents a potential safety hazard, especially for families with small children who cannot safely ride in extreme heat without a functioning A/C system. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)