2018 Hyundai Santa Fe: engine failure

Filed Sep 22, 2026 · Engine · IL

While driving, the vehicle developed a strong odor of engine oil, followed within minutes by illumination of the red oil pressure warning light. Inspection determined that a bolt had exited the engine's timing assembly, broken the timing chain, and punctured the timing cover, discharging engine oil throughout the engine compartment while the vehicle was in operation. Engine oil was sprayed onto hot engine and exhaust components while the vehicle was being driven on public roads. This presents a fire hazard. The same failure also risks sudden loss of engine oil pressure and seizure without warning, which would cause an abrupt loss of motive power in traffic. Approximately twelve days before this failure, the check engine light illuminated. The vehicle was taken for service within two days. The technician was unable to clear the code or identify the cause and advised a dealer inspection. No warning of imminent catastrophic engine failure was provided by the vehicle. The vehicle was towed to a Hyundai dealership, which quoted $6,932.28 plus tax and characterized the work as a "timing repair." This vehicle is equipped with the 3.3L Lambda II GDI V6. I am aware that this engine is the subject of Hyundai Warranty Extension TXX8 covering engine damage on 2013–2019 Santa Fe vehicles, and of a federal class action alleging premature failure of internal rotating components in this engine. The dealership's estimate made no reference to that extension, and Hyundai's public VIN lookup tool returns no campaigns for this vehicle. The vehicle remains at the dealership and the failed components are intact and available for inspection upon request. The failure was confirmed by both an independent service facility and the Hyundai dealership.

Filed Apr 11, 2026 · Engine · NY

My wife was driving the vehicle by the left lane on route 9A northbound on elmsford at a speed around 35 mph. The vehicle suddenly came to stop completely while driving. My wife tried to start it but it didn't start. We called the police to come help us due to the ongoing traffic while the towing was on its way. Our mechanic told us the engine was seized and needs a replacement. The vehicle is a 2018 and has only 118000 miles. We do oil changes periodically every 3000 miles.

Filed Mar 13, 2026 · Engine · PA

Catastrophic Engine Failure - Cam phasers blew apart and severely cracked the valve covers. This occurred with no prior warning lights. Minutes before failure, there was engine hesitation and noise and then severely reduced power, causing a safety issue while driving. Vehicle was towed to local Hyundai dealer who identified the cam phaser failure ausing external engine damage of the valve covers and complete loss of oil. This occurred only 3,000 miles after an oil change.

Filed Feb 2, 2026 · Engine · TN

Engine Issues: A week ago, on two separate occasions, my Santa Fe cutoff while driving suddenly. A day later, I noticed a rhythmic knocking upon starting my vehicle. The knocking would increase during acceleration and decrease when I let off. I am only at 83,000 miles on this 2018 vehicle. I took the vehicle in for an oil change and they didn't notice anything off about the oil. Afterwards it slightly improved; however, once I was able to get it to the shop they said there were metal shavings in the engine/oil and it was a complete engine failure costing $12,000 to replace. There were no indicators that there was an issue on the dash.

Filed Nov 14, 2025 · Electrical, Engine · VA · fire

In September 2024, my 2018 Hyundai Santa Fe experienced an unexpected engine lock-up while driving, creating an immediate safety hazard. Vehicle lost power, began smoking, and posed a potential fire risk. Fire department responded to prevent the engine from catching fire and had to spray the engine compartment with high-pressure water. Following this incident, vehicle remained in Hyundai’s possession for ~9 months for engine-related repairs. When we picked up the vehicle after the prolonged repair period, front-facing camera had completely stopped functioning. This camera has always worked prior to the engine lock-up and was functioning the day of the incident. This was reported to the dealership, Hyundai Motor America. A case manager (Nemesh) took the case. Very supportive, helpful and provided a thorough process for investigating the situation. However, all the sudden case was assigned a new case manager (Bryan) and the process immediately changed and the claim was denied. Given the timing and circumstances, the camera failure appears to be the result of electrical or component damage caused during the engine failure/fire-prevention event. The dealership also confirmed that no independent inspector ever assessed the vehicle for secondary damage despite my repeated requests. Hyundai later denied responsibility without conducting any physical inspection of the damage. This sequence of events — sudden engine failure, required fire-response intervention, prolonged repair, and subsequent electrical component failure — raises significant concerns about safety and the potential for related electrical or wiring issues caused by the engine incident. I am reporting this because the underlying engine failure and fire-risk conditions represent a serious safety defect, and related component failures may indicate broader issues with damage resulting from these events. Also Hyundai not letting the independent inspector assess gives me great concern something was missed.

Filed Nov 6, 2025 · Engine, Transmission · NJ

•Year/Make/Model: 2018 Hyundai Santa Fe •Mileage: ~91,502 •Date Purchased: April 2023 Description of Problem / Safety Concern: I am reporting a safety-related engine defect in my 2018 Hyundai Santa Fe. The vehicle has developed engine knocking, metal shavings in the oil, and potential timing chain/bearing failure, all of which create a serious risk of engine failure while driving. The vehicle was purchased at 50,855 miles and currently has 91,502 miles, demonstrating that these serious engine defects developed at relatively low mileage. I have attempted to have the issue addressed under Hyundai’s extended warranty, referencing the TXX8 Service Bulletin which provides specific instructions for inspecting, diagnosing, and submitting claims for this type of engine defect. Despite this, two Hyundai dealers have refused to inspect the vehicle or submit a warranty claim: •Hyundai of Trenton refused to inspect or submit any claim. •A second Hyundai dealer demanded nearly $2,000 in fees ($195 diagnostic, $550 additional, $1,200 bearing test) and then denied coverage citing “no codes,” even after acknowledging metal flakes in the oil filter and noisy valve train. I have also contacted Hyundai Corporate three times (two online complaints, one phone call), but the company continues to direct me back to the dealers without resolving the issue. Safety Risk: The ongoing engine defects jeopardize vehicle safety and could result in catastrophic engine failure while driving. Based on research and reports from other owners, these issues may affect other 2018 Hyundai Santa Fe vehicles with similar Theta II engines

Filed Jan 14, 2025 · Engine · PA

My engine failed on 11/21/24. I brought it to dealership to confirm the failure on 11/22/2024. I was driving on the highway when the car started to violently shake and then shut off. The dealership sent pictures of the engine and other components to Hyundai to confirm the engine failure. No lights came on prior to the failure.

Filed Oct 29, 2024 · Engine · GA

Was on my way home from work, and suddenly my engine threw a rod and now my engine is blown.

Filed Jul 11, 2024 · Engine · MA

June 21, 2024. During travel at high speed (70mph) on NYS Thruway, engine began making loud noise. sounded like something was loose and flapping. WITHOUT WARNING- no instrument warning lights came on, engine seized and power stopped. At no time during my drive did I observe any instrument warning lights. I was able to get over to the side of the road. The temperature gauge remained unchanged. I was concerned about fire in the engine and got as far away from the car as possible. I was 200 miles into my 300 mile journey. After waiting over an hour to have my car towed to the dealer, I was told that there were 3 Hyundai's with similar issues the week before and that the car would likely need an engine replacement due to "excessive oil consumption". This issue is a safety risk as it could have resulted in catastrophic engine fire, as well as safety issues on the Thruway with other cars and lots of traffic. Engines are backordered. Dealer did a full inspection and submitted paperwork on June 28, 2024 to Hyundai for a decision on whether this is covered under warranty. I was told we would have an answer within a few hours. Have been assigned a "liason" with Hyundai and have been in regular contact. However, Hyundai has asked for an additonal time in order to make a decision. No word as of July 11, 2024.

Filed Jun 19, 2024 · Engine · TX

May 26, 2024 I was driving on a freeway with my grandson. I heard a knocking/clicking sound from my 2018 Santa Fe. No warning lights came on. The car lost all power. I had to navigate the traffic and coast to a stop. Unfortunately we were on the side of the freeway right before a very busy entrance ramp. An 18 wheeler swerved to avoid hitting us. That's when I decided it was not safe to wait in the car for a tow truck. My car was taken to a Hyundai dealership. We received a call that the engine needs to be replaced and was quoted $20,000 for a new engine.I have spoken with a case manager at Hyundia corporate. He says they are waiting on the dealership to request a goodwill warranty because my car was 3,000 miles outside of the 100000 mile warranty. The dealership was suppose to submit it last week but as of today it has not been done. I looked to see if there were any recalls or class action suits for my make and model. That's when I discovered my vehicle has some outstanding safety recalls. I was never notified of these recalls.

Filed Apr 11, 2024 · Engine · MI

My Hyundai Santa Fe’s engine blew up while I was driving it and everything shut down without warning. I was stuck in the middle of a busy 4 way stop until I was pushed into a parking lot so I could get towed. There was no warning lights such as oil, engine lights, no sensors what so ever!!! It had begun burning oil and I made an appointment to get it checked but the oil was not low this time. I was told that the 3.3/6 cylinders engine isn’t in the recall list and is out of warranty at 123,000 miles so they won’t help replace the engine!! This is a $40000 vehicle!!! I’ve looked online and from what I’ve read there are many many people suffering the same issue with this engine but it’s not part of the class action lawsuit. PLEASE PLEASE HELP. I cannot afford a new engine or a new car.

Filed Apr 2, 2024 · Engine · TX

Driving at 70 mph and the car’s RPMs dropped. Coasted to exit the highway to find out the car was not accelerating as it should. Took car straight to dealership to drop it off. Have 100,139 miles on the vehicle. Was told by dealership that car was consuming oil. No check engine lights came on, no oil lights on. Nothing. No warning, no smoke, etc. have been told that the car is consuming oil. I was told when I dropped the car off on Saturday there was 1 qt of oil, and by Monday when they test drove the vehicle there was none and the engine had seized up on them in the parking lot. It has now been two weeks. The initial quote given was 11k (if warranty didn’t cover anything). The dealership submitted all maintenance records, registration and the form stating I am the only owner of the vehicle. Friday (XXX) was told warranty would pay 90% and I would be responsible for 10%, did not have an explanation as to why they did not cover all. Ask to get that information. Saturday (XXX) was told warranty would cover 95% and I would cover 5%, awesome. Agreed to get the ball rolling and order parts. Hear from service advisor on XXX, stating that the repairs are now quoted at $23k, so my portion is more. Still no reasoning why. Later found out that Hyundai has discontinued the 11k long block engines, so they are having to order short block engine + all parts to build it. The huge concern is that is ZERO warning. This could have been dangerous had I pulled out in front of a car! I know there are multiple complaints against Hyundai, so I know I am not alone. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)