2021 Hyundai Palisade: engine failure

Filed Oct 29, 2026 · Engine · NE

Vehicle Information: 2021 Hyundai Palisade Limited (3.8L V6 Engine) Complaint Description: While driving at highway speeds, the vehicle suddenly began making a loud engine knocking noise, followed immediately by a total and catastrophic structural failure of the engine. A connecting rod bearing seized and the rod broke, punching a hole directly through the metal engine block. This mechanical failure caused an immediate, complete loss of motive power and propulsion while traveling in high-speed highway traffic. The sudden loss of engine power simultaneously disabled the power steering and power braking assistance, creating an extreme and immediate safety hazard as I was forced to navigate a completely dead, non-responsive vehicle across multiple active lanes of traffic to reach the shoulder. The vehicle was manually pushed directly to a licensed Hyundai dealership 1/2 a mile, where technicians confirmed a catastrophic internal engine failure with a thrown rod through the engine block. The vehicle had a consistent and documented maintenance history prior to the incident. No warning lights or oil pressure indicators illuminated on the dashboard prior to the sudden knocking and immediate engine destruction. This defect poses a severe, life-threatening safety risk due to the sudden loss of vehicle control on public highways.

Filed Oct 9, 2026 · Engine, Fuel system · OH

Due to a known oil consumption issue the manufacture replaced the engine using a short block swap, they used the old fuel injectors and during the swap one of them failed, becoming stuck open. Now they refuse to fix it without me paying for labor. The failed fuel injector occurred immediately following a mandatory manufacturer engine replacement and poses a thermal/fire hazard.

Filed Sep 1, 2026 · Electrical, Engine · IL

I am reporting a potential safety defect involving my 2021 Hyundai Palisade Calligraphy AWD. The vehicle has experienced repeated engine and drivability problems and multiple breakdowns following replacement of the engine by Hyundai. The original engine developed excessive oil consumption and was ultimately replaced by Hyundai with a new engine. Following the engine replacement, the vehicle experienced numerous additional mechanical problems and repair attempts, including engine rattling/pinging, intake-manifold replacement, oil valve-seal replacement, multiple cylinder misfires, ignition-system problems and an ignition-coil failure. Most concerning are repeated incidents involving severe shaking/lurching, loss of engine power, stalling and failure to restart. During one incident following repairs, the vehicle ran extremely rough, stalled and would not restart after approximately 20 miles of driving and had to be towed back to the dealership. During another incident, the vehicle experienced heavy shaking on startup, stalled and had severely limited power. Diagnostic history showed misfires involving multiple cylinders. On June 29, 2026, at approximately 103,671 miles, I was driving at approximately 50 mph when the vehicle began to lurch and shake, lost power, stalled and would not restart. The vehicle had to be towed back to the Hyundai dealership. The unexpected loss of propulsion and stalling while traveling at approximately 50 mph created a serious safety concern because I could no longer rely upon the vehicle to maintain power in traffic. The dealership subsequently identified an ignition-coil short/failure and replaced an ignition coil. The vehicle has nevertheless continued to experience additional mechanical problems. The vehicle is currently again at the Hyundai dealership. It has generated diagnostic code P0430 for Bank 2 catalyst efficiency below threshold, and Hyundai has recommended replacement of both catalytic converter/manifold assemblies. Th

Filed Jul 27, 2026 · Engine, Transmission · NY

In May 2025, I contacted Hyundai regarding excessive oil consumption in my 2021 Palisade. In June, Hyundai directed me to take the vehicle to a dealership for testing. Under TSB 23-EM-008H ([XXX]), a failed oil consumption test requires engine replacement. My vehicle is covered under Hyundai’s 10-year/100,000-mile powertrain warranty. I have provided complete maintenance records and receipts for every oil change since purchasing the vehicle. Despite this, Hyundai has repeatedly denied my claim, citing maintenance issues and gross negligence without justification. Hyundai’s own guidance states that oil changes may be performed every 7,000 to 10,000 miles under normal conditions. The repeated testing process has worsened the engine condition. In addition, the dealership has returned the vehicle with missing bolts, oil-related issues, and damage resulting from an improper rear window film installation. I have made numerous attempts to resolve this matter and obtain the warranty coverage to which I am entitled, but Hyundai and the dealership have failed to do so. I am requesting one of the following remedies: (1) a full engine replacement in accordance with the warranty and TSB requirements, (2) a replacement vehicle of equal or greater trim level, or (3) reimbursement of all costs associated with leasing, purchasing, maintaining, and repairing this vehicle. We purchased this vehicle based on Hyundai’s reputation, ratings, and promise of “America’s Best Warranty.” We still like the vehicle itself, but the ongoing mechanical issues and Hyundai’s handling of this claim have been unacceptable. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 22, 2026 · Electrical, Engine · TX

The engine oil system failed due to a persistent oil leak that was present from the time of purchase on December 16th 2024. The vehicle is available for inspection upon request and is currently immobile due to a completely seized engine. My safety was put at serious risk because the vehicle has no functioning low oil warning indicator to alert the driver of critically low oil levels. I was driving this vehicle regularly for work with no indication whatsoever that the engine was losing oil. A seized engine can cause sudden and complete loss of vehicle control which puts not only the driver but other drivers and pedestrians at risk. This failure occurred without any warning while the vehicle was in regular use. The oil leak was brought to the selling dealership, Auto Merchants Inc. in Plano Texas, for repair on January 6th 2026. They kept the vehicle overnight and confirmed it was fixed. The problem was not resolved as the vehicle continued losing oil. On March 3rd 2026 I discovered the engine was completely empty and added 6 full quarts of oil with no warning light appearing. I also contacted Hyundai consumer affairs and the Hyundai dealership directly who confirmed the manufacturer warranty had already expired at the time of purchase on December 16th 2024 and declined to cover the repair. The vehicle has not yet been formally inspected by the manufacturer or insurance representatives. The dealership serviced it on January 6th 2026 and claimed the leak was repaired however the engine seized on April 20th 2026 due to continued oil loss. There were zero warning lamps or indicators of any kind prior to the engine seizing completely on April 20th 2026. No low oil warning light appeared at any point during the 4 months I owned this vehicle despite the engine running completely out of oil on three separate occasions. The only symptom prior to full engine seizure was the vehicle sputtering when coming to a stop on April 19th 2026, one day before the engine seized completely

Filed Apr 11, 2026 · Engine · IL

I have been having an issue with my 2021 Hyundai Palisade's engine oil consumption. It is constantly burning oil at a high rate, requiring me to purchase oil constantly. I had it serviced at Hyundai in Gurnee, IL. An oil consumption test was conducted. Hyundai corporate stated that my vehicle's engine was not burning oil at the required rate, which prompted an engine replacement. I reached out to corporate because the issue is persisting, but they never responded to my concern. This issue is costing me a significant amount of money, as I have to purchase oil without a remedy from Hyundai regarding my engine oil consumption. As a consumer, it's frustrating because I left without answers on an issue they definitely know about.

Filed Apr 9, 2026 · Electrical, Seat belts · 148,000 miles · CA

The contact owns a 2021 Hyundai Palisade. The contact stated that while driving at an undisclosed speed, the child in the second-row seat became trapped after the seat belt seized. The seat belt was cut to free the child. Additionally, the contact reported that the infotainment system was inoperable, failed to power on, and malfunctioned while driving, preventing the use of hands-free feature. The dealer was notified of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 148,000.

Filed Mar 10, 2026 · Engine · FL

The engine in my 2021 Hyundai Palisade experienced sudden loss of oil leading to engine failure. The vehicle had been regularly serviced and maintained at a Hyundai dealership according to recommended intervals. During multiple service visits, the dealership informed me the vehicle was low on oil. An oil consumption test was performed but the results were inconclusive. At approximately 99,500 miles, the vehicle developed an oil leak which the dealership diagnosed as a gasket issue and repaired under warranty. An oil change was completed at that time. Approximately 5,000 miles later, while driving, the vehicle began experiencing loss of power and rough engine operation. I immediately drove the vehicle to the dealership. The dealership later informed me the engine had no oil in it when inspected. There were no active external leaks observed at that time. The dealership stated that it is “normal” for this engine to consume up to one quart of oil per 1,000 miles. The engine now requires full replacement due to internal damage caused by oil loss. This situation created a safety concern because the vehicle began losing power while in operation. The failure occurred suddenly without warning indicators prior to the loss of engine performance. The vehicle had documented oil level concerns during previous service visits, suggesting a potential excessive oil consumption or engine defect. The failed engine is currently available for inspection at the dealership.

Filed Feb 21, 2026 · Engine · PA

Oil filter housing is leaking. Plastic part is warped and does not allow filter to seal. Leaking oil is a fire hazard and could cause engine failure.

Filed Jan 8, 2026 · Electrical, Steering · 102,000 miles · CO

The contact owns a 2021 Hyundai Palisade. The contact stated that while driving at 25 MPH, the steering wheel seized. The contact stated that the failure recurred intermittently while driving 45-55 MPH. The power steering warning light was illuminated. The contact stated that upon coming to a complete stop, the steering wheel seized. The contact was able to pull over to the side of the road. The contact resumed driving; however, the vehicle failed to exceed 20 MPH and was jumping while experiencing electrical failures. The vehicle was driven to the residence and parked; however, the vehicle failed to lock or to detect the key fob. The contact stated that the vehicle was inoperable. The vehicle was not diagnosed or repaired by a dealer or an independent mechanic. The manufacturer was not notified of the failure. The failure mileage was approximately 102,000.

Filed Jan 8, 2026 · Engine, Transmission · TN

Vehicle experienced engine failure previously and received a Hyundai-installed replacement engine in February 2025. Replacement engine is now setting DTC P000A00 – Intake Camshaft Position Slow Response (Bank 1). Hyundai dealership master technician confirmed excessive variance between commanded and actual cam timing, indicating a VVT / cam timing failure controlled by oil and actuators. Hyundai is refusing to cover diagnosis and repair under replacement engine warranty and is requiring customer-paid tear-down despite fault originating within the engine assembly. Concern is for internal engine timing failure that may lead to engine damage or loss of power. This appears consistent with known Hyundai engine timing and oil control issues

Filed Dec 21, 2025 · Engine · IL

The engine failed due to excessive oil consumption/internal oil loss. The engine is currently installed in the vehicle and available for inspection upon request. The issue began while the vehicle was under warranty and has progressed to the point where engine replacement has been recommended. Ongoing oil loss and engine malfunction created a risk of sudden engine failure or loss of power while driving, which could lead to stalling or reduced ability to safely control the vehicle. This presents a safety risk to the occupants and other motorists, especially at highway speeds. Yes. The issue was confirmed by an authorized Hyundai dealership through oil consumption monitoring, diagnostic testing, and inspection after the check engine light illuminated. Hyundai has acknowledged the problem by authorizing testing, attempting repairs, and recommending engine replacement. Yes. The vehicle has been inspected by an authorized Hyundai dealership, and the issue has been reviewed by Hyundai Motor America through warranty and goodwill claims submitted by the dealer. es. The first symptom was unexplained oil loss beginning at approximately 66,000 miles, with no visible external leak. Later, the check engine light illuminated, prompting further inspection and leading to the recommendation for engine replacement.