2020 Hyundai Santa Fe: excessive oil consumption

Filed Oct 9, 2026 · Engine · VA

The vehicle is experience severe, progressive engine oil consumption, completely depleting its engine oil below the safe operating limit ("Low" mark on the dipstick) every 500 miles. This creates an imminent risk of sudden engine seizure, catastrophic mechanical failure, and sudden stalling at highway speeds. The authorized dealers (Safford Hyundai Manassas) and corporate case management (Case #43193472) have failed to fix the issue after multiple visits. Furthermore, dealership service staff explicitly instructed me that I must continue operating the vehicle for an additional 1000 miles even if the oil falls below the safe "Low" limit to satisfy corporate test parameters. Forcing a consumer to drive a vehicle with depleted engine oil is a severe safety hazard to myself and other drivers on the road. The manufacturer is also underreporting oil consumption volumes on service invoices to avoid warranty repairs.

Filed Sep 17, 2026 · Engine · 137,000 miles · TN

The contact owns a 2020 Hyundai Santa Fe. The contact stated that while driving approximately 55 MPH, the vehicle went into LIMP Mode and failed to properly accelerate, with the check engine warning light illuminated and flashing. The vehicle was later towed to the local mechanic, who was unable to determine the cause of the failure; however, engine oil was added to the engine. After retrieving the vehicle, the contact discovered that the engine oil level was low shortly after the engine oil was added. The contact stated that the vehicle was consuming an excessive amount of engine oil and the vehicle was taken back to the local mechanic. The mechanic confirmed that the engine oil level was low, and metal shavings were found in the engine oil. The vehicle was taken to the local dealer, and the contact was informed that an oil consumption test was needed. The cause of the failure was not yet determined. The failure mileage was 137,000.

Filed Sep 10, 2026 · Engine · IL

At approximately 122,000 miles, my 2020 Hyundai Santa Fe experienced a serious engine malfunction while I was driving on the highway. The check engine light suddenly illuminated and the vehicle began thrusting/jerking forward unexpectedly. We immediately took action to exit the highway and were able to get off the highway, but the engine died before we could fully stop the vehicle. This created a serious safety risk because the unexpected jerking and subsequent loss of engine power occurred while traveling at highway speeds and could have resulted in loss of control or a collision. The vehicle was towed to a local independent mechanic. After inspecting it, the mechanic stated that the engine needed to be replaced and recommended taking it to a Hyundai dealership because of the continuing issues associated with the Theta II engine. The vehicle was then towed to the Hyundai dealership. The Hyundai dealership inspected the vehicle and determined that cylinders 2 and 4 were not firing and recommended replacing the valve shaft. We requested a complete engine replacement. Hyundai initially offered a 50/50 split of the repair cost, but after we requested an engine replacement, Hyundai declined and instead offered a 70/30 cost split. There was also a previous documented concern regarding increased oil consumption, as noted in an earlier oil-consumption report. The vehicle has been inspected by both an independent mechanic and a Hyundai dealership. The vehicle and engine components are available for inspection upon request. No police or insurance inspection was performed, to my knowledge.

Filed Sep 2, 2026 · Driver assistance, Engine · FL

Hyundai Motor America & Wallace Hyundai of StuartVEHICLE: 2020 Hyundai Santa Fe (2.4L Theta II GDI Engine)VIN: 5NMS23AD5LH181669INCIDENT MILEAGE: 181,000 MiHYUNDAI CASE NUMBER: 42981944SECTION 1: CATASTROPHIC INTERSTATE SAFETY INCIDENTOn July 16, 2026, while navigating heavy, high-speed traffic on Interstate 95 (I-95) at approximately 80 to 85 MPH, my vehicle suffered an un-commanded, catastrophic mechanical engine seizure. The vehicle instantly dropped from highway speeds down to a 21 MPH "limp mode," creating an immediate multi-car pile-up hazard on a major interstate. Physical inspection immediately after the failure proved that the engine oil level was completely full. The internal components catastrophically failed due to a documented, systemic factory defect involving premature rod bearing failure and oil starvation mechanisms, entirely unrelated to consumer maintenance.SECTION 2: PRIOR SAFETY COMPLAINTS & DOCUMENTED TIMELINEHyundai Motor America has intentionally forced me to operate a known, life-threatening safety hazard for 17 months, during which I drove an additional 31,000 miles under extreme duress. I filed formal oil consumption complaints with Hyundai Corporate every three to four months. I was forced to manually replenish the engine oil every 1,000 miles due to excessive oil loss.Specific safety reports detailing hazardous engine behavior were formally logged with Hyundai on November 25, 2025, and again in April 2026. Rather than remediating the vehicle, Hyundai corporate claims adjusters and dealership supervisors ignored these warning tracks, effectively throwing a consumer out into active traffic in an unsafe, defective vehicle.SECTION 3: AUTOMATIC SHUTDOWN TRAUMA & ACCIDENT RISKThe manufacturing defects caused an intermittent, un-commanded automatic The manufacturing defects caused an intermittent, un-commanded automatic engine shutdown condition. On 5 to 10 separate occasions while stationary at active traffic lights, the vehicle stalled10times

Filed Aug 28, 2026 · Engine · NY

2020 hyundai santa fe sel with 2.4l theta ii engine experiences severe oil consumption and repeated engine stalling during normal operation. The vehicle has a documented history of repeated low-oil conditions despite regular oil service. The problem progressed to the engine repeatedly stalling when returning to idle. When braking to a stop or while stopped at a traffic light or stop sign, the engine may stall unless the driver maintains additional throttle. This creates a safety concern because the engine can shut off during normal traffic operation. The vehicle was presented to centereach hyundai for diagnosis. According to the hyundai service advisor, the dealership found the engine with very little/nearly no engine oil despite the vehicle having traveled less than approximately 500 miles since its most recent oil service/top-off. The hyundai technician reportedly suspects that the engine timing may have jumped and that this condition may be related to the low-oil condition and may explain the engine stalling. Hyundai has directed that an oil-consumption test be performed. The initial oil service/engine-flush procedure has been authorized by the owner at approximately $400. The procedure then contemplates approximately 1,000 miles of additional vehicle operation to measure oil consumption. This creates an additional safety concern because the vehicle being required to accumulate approximately 1,000 miles is the same vehicle that has been reported to repeatedly stall at idle and for which the hyundai technician reportedly suspects a timing problem. The owner has requested that hyundai document whether the vehicle has been evaluated for the stalling condition and whether hyundai considers it appropriate to operate for the required mileage-accumulation test. Hyundai motor america case number: 43164946. Vin: 5nms3cad4lh173916.

Filed Apr 24, 2026 · Engine · MO

I was driving out of the parking garage at work and happened to catch the oil light flicker on and then go off. I immediately drove it to an auto shop where I told them what happened. They looked at the dipstick and there was no oil showing on the dipstick. If I had just written the light off as an oddity I would have driven the car home from work (around 20 miles) and the engine could have stalled at 60mph creating a safety hazard. I have the oil changed regularly (about every 5,000 miles) and have my receipts. My car has around 80,000 miles in it and I’m the original owner. The auto shop said that I would need to take it to the dealership for an oil consumption test. I called and scheduled the appointment immediately and am in the process of having the test completed. The dealership noted a TSB for the issue on the write up and based on my research online this is not an unusual problem. Why have owners not been made aware of this issue? I don’t feel safe driving my car and am frustrated that this seems to be a known issue. There was no oil on the dipstick, no indicator that stayed on indicating an issue.

Filed Apr 21, 2026 · Engine · MI

We purchased a used 2020 Hyundai Santa Fe with approximately 105,000 miles. The vehicle has had regular routine maintenance and oil changes. Around 107,000 miles, the check engine light came on and the vehicle simultaneously started running rough. It was diagnosed with a failed valve on the #3 cylinder and now needs a total engine replacement. This issue also coincided with excess oil consumption. Despite having an oil change fewer than 2000 miles earlier, the oil was almost completely gone from the engine despite not having any leaks present. This goes well beyond normal wear and tear and is indicative of a defect/design flaw.

Filed Feb 26, 2026 · Engine, Transmission · GA

I was driving on the road and all of the sudden my car went limp and would only move 45 miles per hour. I took it to the dealer which I have lifetime powertran on my car. It has been there for over a month at the dealer. They asked me to provide all oil changes,services, and registrations. I did that and then fidelity asked them to tear down the engine again to see if I had carbon build up. Then after the dealer did that they ask the dealer to tear the motor down even further to see if the exhaust valve was bad and if it was bad they would not replace my motor. My car consumed so much oil that I was changing my oil so often. I have been renting a car just to get back and forth to work. In my contract it says that the exhaust valve is covered under my lifetime powertran. I feel like hyundai and fidelity are giving me the run around. I took very good care of my car and I have shown that. Hyundai has had alot of problem with there motors with the oil consumption and motors just going limp. I feel I will never buy a hyundai again. I am losing money everyday because of the dealer and fidelity. I need the motor replaced and it was no abuse on my part I took care of my car. I want fidelity to tell me how I abuse the exhaust valve. I did my oil changes and took care of my car. I am still paying on my Hyundai and can't afford another car. I have alot of medical bills that I pay. Any help would be great. Sincerely [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Dec 29, 2025 · Engine · MS

After 110,000, the engine started using oil and it began to knock. According to the history of these engines, it will lead to engine failure. They have a record of being a lemon engine and there is not a engine of this type that this does not happen. The engine needs to recalled and replaced, They are the Theda II GDI series of 2.0L and 2.4L four-cylinder engines from Hyundai/Kia.

Filed Dec 23, 2025 · Engine · NY

2020 Hyundai SantaFe Limited AWD ... burning excessive oil. This only was noticed because the low oil light intermittently started coming on, and has only started happening in the last few months. low oil indicator flashing - 4QT low, went for an immediate oil change 78788 miles - oil changed 80252 miles - low oil - added 1QT 80628 miles - low oil - added 1QT 81376 miles - oil changed 81999 miles - low oil - added 1QT 82755 miles - low oil - added 2QT These are the most recent events since we started logging it.

Filed Dec 20, 2025 · Engine, Fuel system · FL

Excessive oil consumption under warranty, . Hyundai says its normal consumption within 1,000 miles. engine its doing stalls now.

Filed Dec 5, 2025 · Engine · OH

Excessive oil consumption. Mechanic who changed oil said oil level was too low and he could find no leaks. He said this is a known Hyundai problem. The dealer acknowledged this. There was no warning light saying the oil was low. It was discovered during a routine oil change.