Hyundai Tucson Engine problems by year

I-270 in Maryland. The vehicle suddenly stopped accelerating in the middle lane. She activated the hazard lights and managed to move into a nearby parking lot. She was frightened and did not feel safe driving home. This exposed her and other motorists to a potentially dangerous situation. The October 29, 2026 dealership invoice documents a flashing check-engine light, limp mode, and inability to exceed approximately 35 mph. P1326 was recorded as pending. Another BCT under TSB 26-EM-014H passed, and a three-mile road test was performed. The code did not return during that test. However, the dealership did not identify the cause of the repeated loss of acceleration. Its request for engine replacement was declined because "no engine malfunction has been identified." Hyundai has confirmed the vehicle's TXXM warranty extension (15 years/150,000 miles, subject to terms) and completion of Service Campaign 966. Despite the repeated incidents, neither Hyundai nor the dealership has provided a satisfactory explanation of the underlying problem or a written, vehicle-specific safety determination. I am not claiming that an engine defect has been conclusively established. I am asking NHTSA to investigate the repeated sudden loss of propulsion and potential safety defect in 2019 Hyundai Tucson vehicles equipped with the 2.0L Nu GDI engine.

but makes a grinding noise. It will die and turn off the engine after roughly 45 minutes. This had never happened before. *I've been told a few different things by people who hear about the problem, but I've never received a real diagnosis by the Hyundai dealership it is located at. It has always had a oil consumption problem, adding roughly one quart of oil every 800-1000 miles. It has had oil changes every 5,000 miles. It also had a hard time when cold-started accelerating, but would work fine once heated up. It is available for inspection upon request.

lost engine power. The vehicle slowed down and would no longer accelerate. Thankfully, she managed to exit the highway before it stopped completely. Highway patrol assisted her in moving the vehicle to the roadside. The Check Engine Light and oil-pressure warning light came on, the engine made a pronounced knocking sound, and it would no longer run. We believe these symptoms closely resemble the engine defect described in Hyundai's Recall 209 (NHTSA 21V-727), involving connecting-rod-bearing failure in certain 2017 Tucson vehicles. Hyundai Motor America denied our request for assistance, stating that our VIN is not included in the recall and that no warranty coverage applies. We respectfully question whether vehicles experiencing the same or substantially similar defect may have been excluded from the recall. We request a technical investigation into why our vehicle was excluded and whether its engine failure is related to the recalled defect. This was a serious safety concern, not merely a repair expense. Our daughter could have suffered a serious accident had she been unable to exit the freeway safely. We are grateful she escaped without injury. We respectfully request that Hyundai reconsider its decision, review the vehicle's maintenance and diagnostic records, and investigate the engine failure. If the failure is related to the recalled defect, we ask Hyundai to cover the cost of engine repair or replacement. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

attempting to maintain normal traffic speeds. Following these issues, mechanical inspections revealed water inside the spark plug wells, a severely rusted ignition coil, and a failing catalytic converter. Firestone estimated the catalytic converter repair at approximately $5,000. The presence of water and corrosion raised concerns about possible pre-existing damage and whether the vehicle had been properly inspected before being sold. The vehicle remained in repair-related custody for approximately 29 days. Despite repeated communications with DriveTime, the mechanical problems were not satisfactorily resolved. DriveTime representatives informed me that a replacement vehicle had been approved. On [[redacted]], I returned to the dealership expecting a replacement but was informed that no suitable vehicle was available. I was left without transportation, and the dealership failed to provide a satisfactory resolution. As of October 21, 2026, I remain without a vehicle. I am requesting that NHTSA investigate the sudden loss of engine power, possible electrical or ignition system damage caused by moisture intrusion, and any similar safety complaints involving the 2017 Hyundai Tucson. My primary concern is that these mechanical failures could cause another driver to experience a dangerous loss of power while operating the vehicle, potentially resulting in a serious collision. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

replacement. A written estimate dated [redacted] quoted $7,823.58 for an engine replacement. Despite this diagnosis, the dealership later declared the vehicle drivable and returned it after adding oil, without providing a satisfactory explanation for reversing its original findings. The engine problems continued, and the vehicle had to be returned to the dealership. This presents a serious potential safety hazard. An unresolved engine or oil-pressure problem could cause sudden engine failure, loss of propulsion, or a breakdown while driving on a highway or in heavy traffic, increasing the risk of a collision and injuries to occupants and other motorists. I am particularly concerned that a vehicle initially diagnosed as needing engine replacement was subsequently declared safe to drive without documented evidence that the underlying problem had been corrected. I request that NHTSA investigate whether this engine failure represents a broader safety defect affecting 2019 Hyundai Tucson vehicles and whether additional safety measures, including a recall investigation, are warranted. Vehicle: 2019 Hyundai Tucson AWD 2.0L VIN: [[redacted]] Mileage at diagnosis: Approximately 87,656 miles Incident Date: [redacted] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

out-of-pocket 'combustion cleaning' fee, which, as seniors, we cannot afford on a fixed income. The dealership service manager told us that he requested Goodwill from Hyundai Corporate for the combustion engine cleaning. And because of a past denial, corporate denied it a 2nd time. So, we contacted our Hyundai Corporate case manager, who said our request for "the engine replacement" was still pending and in review by their team. She saw no denials, except for a loaner, which would be approved, upon repair approval. We added the dealership service manager on this call to discuss confusion about goodwill be denied by Corporate for the "combustion cleaning". He said this case manager would not see the combustion cleaning requirement, because it was instructed by another department. His then pivoted the topic & said we received an estimate for combustion cleaning. My response "we never received an estimate & have no estimate in my email". His response "I hate to use this word, but you're a liar". My husband then took the call saying "we did not receive an estimate in writing, although we had asked the tech for an estimate but nothing was final." The service manager cut him off and said "we are done come pick up your car" & hung up. This dealership phone interaction needed to be included in this incident because now we are being put in grave danger as he is expecting us to pick up our un-drivable, unsafe & hazardous car with no concern for safety.

converter was replaced by an independent repair facility. The contact subsequently observed continued oil loss following the repairs. The vehicle was returned to the dealer, where it was diagnosed that the exhaust manifold headers failed and required replacement. The vehicle was not repaired. The contact requested and received a complete diagnostic report from the dealer. The failure mileage was approximately 90,502.

denied warranty coverage on October 12, 2026, falsely claiming wear and tear despite active TXXM 150,000-mile extended warranty framework protections. Furthermore, there is a data discrepancy: the dealership pulled diagnostic trouble code P0172, but corporate claims the vehicle threw code P0173 and is withholding the physical diagnostic printout behind a fee paywall.

engine replaced at 52k miles, meaning there's 1 something internally wrong and 2 it's still well within mileage warranty for another engine replacement. This car is extremely dangerous as it can literally stop in the middle of the highway. I went from 72 to about 15 mph in seconds, I was unable to get over or accelerate. It was terrifying. Now dealing with Hyundai - they don't want to take fault.

buildup. The car was approved for a second catalytic converter install last week which my car currently sits at 125,000 miles and the dealership through the authority of approval with Hyundai motor America has replaced under warranty however subsequently running the excess consumption test, the car now has a burnt exhaust valve which Hyundai motor America is extending a "good faith" proposal which they are willing to replace 60% of the burnt valve and I'm responsible for the 40% even though I have complied fully with the dealership's recommended preventive maintenance schedule which has been solely performed at the same dealership since the day I bought the car and drove off the lot up until the 100K mile warranty. And now discovering my particular motor has been extended to the 15/150,000 warranty due to the lawsuit settlement. I have continued with my diligence with keeping up with the oil, instead of ignoring the issue that the car burns excessive oil to potentially has the engine fail while driving to be fully covered on the rod bearing failure settlement. Help in my concerns would be greatly appreciated through NHTSA.