2017 Hyundai Elantra

Car was constantly losing power, called Hyundai dealer about the OBI system thinking that could be the cause they told me no, and then in 2 years ago the car started stalling when you slowed down and on the way home from work it completely died. Car still turns over but car will not go, engine and transmission are completely done. It’s been at my house sitting since. Hyundai dealer is a joke a wouldn’t help when the issue first arised.

After no previous issues, car stalled out multiple times on short drive to work. No warning lights and no subsequent diagnostic codes were reported. Upon final restart, engine started knocking severely. Upon investigation, the oil stick showed no oil in the pan. Vehicle was towed to trusted, licensed mechanic for evaluation where we were informed about the potential of a failure due to rapid oil consumption. The mechanic confirmed the engine failure to to oil loss. Vehicle had received regular, documented maintenance and fluids were checked periodically between cycles. There was no low-fluid indicator prior to the mechanical failure. Dealership-level conversations confirmed the rapid oil consumption issue for the 2017 Elantra is common, but because the vehicle VIN was not listed as part of a prior recall no assistance could be provided to repair the engine. The dealer provided a full cost quote of $9,000 to replace the engine block with a remanufactured unit.

Driving on the highway in the far left lane. Check engine light came on, car stopped accelerating. Car came to a stop, car shut off. Smoke was coming out from under the hood and flames were seen underneath the car. Police and fire department arrived. Report states an electrical fire. Had car towed to Hyundai. Hyundai stated that the engine seized followed by the starter catching on fire. Car was only 2,000 miles in from last oil change. Was up to date on maintenance and safety inspection. Hyundai also stated there was a hole in the engine block. No prior issues with the car. The car would need roughly $16,000 in work done, confirmed by Hyundai. Car is now totaled. Car only had 121,000 miles on it.

With no 'low oil' warning, the car's engine started may a knocking noise. Then, all kinds of warning lights started. Parked the vehicle and checked the oil the next day and there was NO OIL in the engine. This should not have been the case considering this car gets regular oil changes. Also, there was no oil spots or stains on the driveway to also indicate an oil leak. This happened to my son while driving home from work on the interstate at 10:30 at night. That is concerning.

While driving, pressing the accelerator pedal, the vehicle hesitated and stalled. No warning lights came on until after I attempted to turn the vehicle back on then the check engine light and low oil light were illuminated. My vehicle was towed to a local mechanic and I was informed that the engine was blown and to tow my car to a Hyundai dealership as I was still under the 10 year/100k mile warranty. After getting my car to Hyundai, I was told I had to get a combustion cleaning for $800 whether the cleaning worked or not before any warranty work could be completed. The cleaning did not work and it was then found that a pin was sheared off inside the engine. My engine was then replaced under warranty but I still had to pay for the cleaning. A second mechanic looked over my paperwork after getting my car back 2 months later and noted that the engine failure could have been diagnosed without the cleaning as the cleaning would not have affected where the pin was sheared off. My 2017 Elantra had 90,315 at the time of this incident.

to whoever it is that can help, I am reaching out to submit a formal complaint regarding my 2017 Hyundai Elantra due to ongoing mechanical and structural issues that began very shortly after I purchased the vehicle, which have progressively worsened. I made the purchase in January 2024 for approximately $13,000 with 60,000 miles. The vehicle now currently has approximately 108,000 miles. Since purchasing the car, I have experienced consistent time consuming and serious issues that I believe indicate defects in manufacturing or design. First, the thermostat had failed during the first winter season I owned the Elantra, despite replacement the vehicle’s heating system still does not function properly. I’m not a fan of the cold. Also, the engine burns oil at an extreme rate. I am required to add oil literally every 2–3 days to prevent the engine from running dry, which presents a serious risk of engine failure and potential safety hazards while driving. And is also costly as oil is not cheap. In addition, the vehicle’s headlights developed spiderweb pattern cracking and shattered from the inside after approximately nine months of use, without any external damage. The paint has chipped across the vehicle, including in door jambs and other protected areas, suggesting poor paint quality. And recently, the lower engine underbody cover has completely broken down and disintegrated over time due to clips constantly falling out. Given the age of the vehicle and the normal use, the amount and severity of these issues are unacceptable. These defects have caused significant financial burden and raise serious concerns on vehicle safety and manufacturing quality. I am requesting that this complaint be reviewed for potential defects or recalls. I would also like Hyundai to be held accountable, either through compensation for the repairs required or replacement. Thank you for your time and attention to this matter. Sincerely, Owner of the 2017 Hyundai Elantra

Component or System Involved Engine and internal lubrication system. The engine and related components are available for inspection upon request. Description of the Problem In January 2025, this vehicle experienced a catastrophic engine failure and seized. An independent repair facility inspected the engine and reported metal fragments in the engine oil, indicating internal engine damage. The vehicle was then transferred to a Hyundai-authorized dealership for major engine repairs, which were completed on January 18, 2025. Less than one year later, the vehicle developed excessive oil consumption. In October 2025, the engine stalled and was found to have no oil, despite having received an oil change approximately one month earlier. The vehicle is currently undergoing Phase 2 of Hyundai’s oil consumption testing. The dealership has indicated a full engine replacement will likely be required. Oil consumption has been measured at approximately 1.5 quarts per 1,000 miles. This vehicle is not currently included in Hyundai’s engine recall or warranty extension, despite being the same make, model, and model year as vehicles that are covered and exhibiting the same failure characteristics. Hyundai and NHTSA have documented similar engine defects on other Elantra models due to piston oil ring issues, resulting in excessive oil consumption and engine failure. My vehicle exhibits the same symptoms and failure mode. Safety Risk Excessive oil loss can result in sudden engine stalling or seizure without warning, creating a risk of loss of propulsion while driving, including at highway speeds. Confirmation or Reproduction of the Problem The failure has been confirmed by an independent repair facility and by a Hyundai-authorized dealership through inspection and ongoing oil consumption testing. Inspections by Others The vehicle has been inspected by both an independent repair facility and a Hyundai-authorized dealership.

The contact owns 2017 Hyundai Elantra. The contact stated while driving 20 MPH and depressing the accelerator pedal, the vehicle hesitated and stalled. The check engine warning light and the low coolant level warning light were illuminated. The contact stated that a bystander assisted in pushing the vehicle into a parking lot. The vehicle was towed to the dealer, where it was diagnosed and determined that the camshaft needed to be replaced. Additionally, the dealer diagnosed that the Continuously Variable Valve Timing (CVVT) and the timing chain needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 21V727000 (Engine); however, the model of the vehicle was not included in the recall. The dealer notified the manufacturer of the failure and was informed that the cost of the repair would not be covered because the VIN was not included in the recall. The failure mileage was 99,112.

I've owned a 2017 Hyundai Elantra for a few years now, and it has been a headache. Over the course of the past year and a half, the engine has went out (seized) not once, not twice, but three times without any warning. I go to start the car one day and the engine bay starts shaking and power of the engine goes either completely out or down significantly. It feels like a gamble every few months of if my car will simply stop working. I've had the engine rebuilt twice already and will probably have to have it rebuilt again for the same issue (the timing).