2015 Hyundai Santa Fe Sport engine problems

Filed Aug 21, 2026 · Engine · VA

See Attached Letter For Complaint

Filed Aug 13, 2026 · Electrical, Engine · NC

The vehicle suffered a severe engine overheating failure that created an immediate fire risk and electrical safety signaling failure. A brand-new replacement engine was installed by an authorized dealership in April 2026 under a goodwill warranty and had only been driven ~ 3,100 miles since installation. While operating the vehicle, the air conditioning suddenly stopped functioning. Upon restarting, the check engine light illuminated; however, there was never any dashboard temperature warning indicator, notification, or chime to alert the driver to an active overheating situation. Shortly after, the engine completely disabled itself and died while in transit in a parking lot. AAA was contacted to tow the vehicle. Smoke was visible coming out of the engine's oil dipstick and oil intake spout before being towed. After being towed home, an overwhelming chemical burning odor was noted and continued to get worse. A physical check revealed that the oil level on the dipstick was critically overfilled a full inch above the maximum fill line. The local fire department responded to the scene to mitigate the thermal risk, ordered the battery disconnected due to safety hazards, and deemed the vehicle entirely unsafe to operate or connect to power. This represents a catastrophic failure of critical safety equipment and onboard driver warning networks on a newly installed engine assembly, presenting an active safety and fire hazard to passengers. An official corporate safety case has been opened with Hyundai Motor America under Case Number: 43112676.

Filed Jul 15, 2026 · Engine · TN

While I was driving my Theta engine got seized and Hyundai denied extended warranty of power train.

Filed Jul 12, 2026 · Driver assistance, Engine · SC

Today while driving to church we started hearing a ping noise ever so often. This just started then . After leaving church to go home the pinging noise got louder than the engine stalled and wouldn't start again. I had to have my car towed to my house. That is where it is now. The tow truck driver said that it was a rod. He said that he was mostly sure that it was happened. He stated that he has towed similar ones like mine with the same problem.

Filed Jun 28, 2026 · Engine · TX

On 4/25/2026 I lost power on business freeway an orange light flash on along with whining noise I had to steer to right side shoulder for safety. Had it towed to dealership on 4/27/2026 they informed me 3 days later on 4/30/2026 that my car overheated. My car never overheated no smell of coolant nor no steam from the car when I exit to shoulder and turn car off. Retrieved manual from glove compartment it stated it had went into limp model. This has been a constantly nightmare my family could have been planning a funeral. These car manufacturers needs to be held accountable for their vehicle.

Filed Apr 13, 2026 · Engine · 155,000 miles · GA

The contact owns a 2015 Hyundai Santa Fe Sport. The contact stated that while driving approximately 65-70 MPH, the check engine warning light started flashing, and the vehicle stalled. The contact was able to pull over to the side of the road, where the vehicle failed to restart and was towed to a parking lot, where a mobile mechanic diagnosed the vehicle and determined that the engine had seized. The vehicle was towed to the residence and then towed to the dealer, where it was diagnosed. The dealer informed the contact that the engine had failed, and there was sludge in the engine oil. The dealer informed the contact that the engine replacement could not be covered due to missing oil change documentation prior to the ownership of the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 155,000.

Filed Apr 6, 2026 · Engine · TN

Engine failed while driving down the road, car was looked at by two mechanics with no known reason for engine failure so car was took to Hyundai of murfreesboro for diagnostic testing and was there for a total of 12 days for inspection, in which during that time i as asked to submit maintenance records for vehicle which i provided 18 pages of oil changes, other records. I was then told my claim was denied by Hyundai due to maintenance neglect as worded by the technician through a text message “is not proceeding with coverage on the engine due the cause of engine failure being maintenance neglect ” i received to other valid reason or cause, nor via email or in writing only a text message.

Filed Apr 2, 2026 · Engine · 86,204 miles · AL

The contact’s daughter owns a 2015 Hyundai Santa Fe Sport. While the owner was driving approximately 70 MPH, the engine started making a knocking sound. There were no warning lights illuminated. The driver called the contact and was advised to pull over to the side of the road and turn off the vehicle. Once the vehicle was turned off, it was towed to a certified mechanic who was unable to diagnose the vehicle. The vehicle was then towed to another mechanic, who diagnosed the vehicle with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The vehicle was then towed to a dealer, who confirmed the failure and that the engine needed to be repaired. The dealer informed the contact of a Class Action Lawsuit for the engine failure and that the engine could be repaired; however, because the vehicle had not received the software update for Hyundai Campaign: (Hyundai TXXM Warranty Extension Number: 966/953/TXXM); the vehicle was no longer eligible to receive the engine replacement. The vehicle was not repaired. The manufacturer was made aware of the issue. The manufacturer opened a case. The failure mileage was 86,204.

Filed Apr 2, 2026 · Engine · 114,080 miles · HI

The contact owns a 2015 Hyundai Santa Fe Sport. The contact stated that the vehicle was taken to the local dealer, where it was diagnosed with a blown engine. The check engine warning light was illuminated. The vehicle was not repaired. The manufacturer was contacted, and the warranty service was declined because the oil maintenance records were not available. The failure mileage was approximately 114,080.

Filed Dec 22, 2025 · Engine · CA

Dealer failure to to remedy engine replacement under settlement. I am entitled under the March 1, 2022, Settlement Agreement (the “E2 Settlement”) due to recurring Theta II engine failures caused by the oil-starvation/connecting-rod bearing defect. Vehicle stalling on highways and heavy traffic, Repeated codes and failures of MAP sensors, VVT solenoids, camshaft position sensors, starters (×3), batteries (×2), turbo wastegate, fuel pump, EVAP canister, thermostats/housings, etc. — all downstream symptoms of oil starvation and bearing failure Hyundai dealers (Hyundai of Palm Springs and others) have continued to misdiagnose and charge me for unrelated repairs while refusing to acknowledge the covered defect in the replacement engine. Relief Demanded Under the E2 Settlement Pursuant to Settlement ¶¶ 4.1, 4.2, 5.1, 5.2, and 6, I demand the following within fourteen (14) days: Full replacement of the failed engine with a new or remanufactured long-block assembly at $0 out-of-pocket cost to me, including all related gaskets, hoses, sensors, turbocharger, and PCM reflash: Full reimbursement of all out-of-pocket repair expenses incurred since the 2022 replacement (approximately $8,178.50+ $150 for two maxed out Triple A cards, and a new rental car for this week at $1500.00 total to date $10,148.50— Reimbursement of all towing and rental-car expenses (receipts enclosed); Compensation for diminished value of the vehicle. Confirmation that the Lifetime Warranty remains in full force on any future engine. In the alternative, a cash buyback of $25,000 in full satisfaction of all claims. This vehicle has suffered two qualifying Theta II engine failures, the second occurring in a warranty replacement engine. Hyundai of Palm Springs continued refusal to properly honor the settlement has caused extreme hardship, safety risks (multiple freeway/intersection stalls), and thousands of dollars in unnecessary expense