Hyundai Elantra check engine light comes on

Filed Nov 9, 2026 · Engine · CA

Bought the vehicle 07/23/26, passed SMOG per California requirements. CARFAX report showed car was recently serviced. While leaving the grocery store on 10/01/26, the car stalled and the check engine light came on. I restarted the car and drove two miles to my house. The next day, I checked the oil and found it was severely low, despite no evidence of a leak. The check engine light was no longer illuminated, so I took the car in for an oil change. As I was leaving the shop, the check engine light came back on; code given was P0017. Repair shop replaced sensors and valves, check engine light stayed on. Repair shop replaced the same parts to ensure they weren't faulty. Check engine light remained on. Spoke to multiple mechanics who all advised this is a known problem with Hyundai but the company won't accept responsibility. Car was taken to dealership on 10/21/26 and underwent a complete engine tear-down ($2100). Dealership is now replacing the entire engine because they couldn't guarantee that replacing specific parts would solve the problem.

Filed Nov 6, 2026 · Driver assistance, Engine · CA

I was waiting at an incline and when I tried to go up a little more, my car rolled back instead. I then stepped on the break realizing the check engine light was on. I put the car in park and turned it off. I turned it on right after and it was fine and the check engine light was gone. Super dangerous, I believe the dealership sold me a lemon.

Filed Oct 1, 2026 · Engine · SC

While driving the engine light came off and car shut down instantly. I see there is issues with the 2018 Hyundai Elantra but I’m coming ot if picket. $7678.50 I purchased the vehicle I. ZMay and purchased a standard warranty that covers $2500 per repair. I have a 30/3 Tucson and love that vehicle! This one! Not so much!!!! I owe $11,000 and need a $7600 engine.

Filed Sep 29, 2026 · Engine · FL

Back in early July, I noticed a ticking sound coming from my engine so when I took it in to a Hyundai dealership, they told me the only way I could pursue any help further was by completing a oil consumption test, which I complied and paid for out-of-pocket very soon after within 48 hours my check engine light came on and was flashing. after pulling the code at an AutoZone which I have documentation of it was a P 1327 which signals that the car had entered limp mode. I very quickly reached out to Hyundai themselves and after going back-and-forth on paperwork, they assured me that since I had no coverage on the vehicle due to its mileageand that it was not produced in the same factory as the other recall vehicles with that same problem that they could not pay or help me with any of the services I would need done to my engine. They told me the only chance I had was by completing the oil consumption test, which would then put me and my safety at risk by driving a car with a faulty engine while it was also in limp mode. I’ve only had the car for about a year and a half when it threw the first sign at me and I’m now struggling to figure out how to afford a completely new engine all on my own with no financial assistance all because my car was not made in the same factory as all the other ones that have had the same issue. I have not been able to drive the vehicle in the last two months and it just put me into financial deficit, trying to figure out reliable transportation to get to my current employer. It also states that the previous owner must have had an engine inspection/replacement but was not specified of which specific action was taken on the official Hyundai website.

Filed Sep 17, 2026 · Acceleration, Engine · OH

I leased my 2017 Hyundai Elantra new in July 2016 and later purchased it. As of September 2026, it has approximately 77,000 miles. I am reporting two unresolved safety concerns despite repeated repairs and more than five months of seeking assistance from Hyundai. Multiple ignition coils have failed during my ownership. Most recently, I paid approximately $400 for service after another coil failure. Although the check engine light is no longer illuminated, the vehicle continues to struggle to accelerate and abruptly jerks or “burps,” particularly around 30 mph. At times, I must press the accelerator nearly to the floor to gain enough speed to safely merge onto the highway. I commute approximately 40 miles round trip, including stop-and-go highway traffic, and am concerned about my safety. When I reported that the symptoms continued after the repair, the Hyundai dealer said I would need to pay another diagnostic fee while also stating their equipment might not identify the problem without an illuminated check engine light. My driver-side exterior door handle is also completely inoperable. This issue was previously repaired by Hyundai under warranty and a known issue with the model year, but the repair has failed and the driver’s door cannot be opened from outside. To enter my vehicle, I must climb through the front passenger door, lower the driver’s window, exit, walk around the vehicle, reach through the window, and open the door using the interior handle. After more than five months of contacting Hyundai and seeking service, both issues remain unresolved. I am concerned about the safety of continuing to operate this vehicle and about the failure of a previously completed recall repair. I am requesting that the federal safety agency document and review these safety concerns.

Filed Sep 2, 2026 · Engine · 46,961 miles · CA

The contact owns a 2020 Hyundai Elantra. The contact stated that while driving 25 MPH, there was an abnormal rattling sound coming from the engine, with the check engine warning light illuminated. The contact pulled over to the side of the road. The vehicle was restarted but unexpectedly stalled. The vehicle was taken to an independent mechanic and was diagnosed with camshaft failure. The vehicle was towed to the dealer and was diagnosed with engine failure caused by a misfire. The contact was informed that the engine needed to be repaired. The vehicle was not repaired. The vehicle was taken to another independent mechanic and was diagnosed with camshaft failure. The manufacturer was not made aware of the failure. The approximate failure mileage was 46,691.

Filed Aug 29, 2026 · Engine, Fuel system · NJ

Vehicle stalls while driving which is very dangerous. All dashboard lights go on prior to stalling. No engine light is on. Knocking sound coming from engine. Dealer states engine needs to be replaced. Car has been serviced regularly despite that Hyundai denies engine replacement. The knocking sound that engine does is common between this model and year but mysteriously there has not been engine recalls.

Filed Aug 29, 2026 · Transmission · OR

Transmission TCM/IVT had a service campaign recall #963 for TCM relearn / IVT replacement for premature transmission failure. Hyundai USA and dealership Big Star Hyundai of Friendswood, TX have made claims of the repair being done. Service records indicate there was no replacement, relearn or anything transmission related done with the vehicle and Hyundai USA has claimed on their end that their records show it was completed, but refuse to show or display records of completion, and have not maintained outreach to the dealership regarding maintenance records for this specific issue. Transmission has popped a P0867 code at 65,000 miles, just outside of it's warranty, and reflects the same codes listed for an issue regarding the TCM/IVT service campaign 963. The safety risk is the transmission giving way on a highway or some other location where it could potentially lead to an accident or stranding, that could lead to serious injury or death. This puts other vehicles on the road and passengers at high risk for an accident or incident. The problem has been reproduced by my husband, and confirmed with ECM readers. Independent service in Atascocita TX confirmed the check engine light indeed coincided with the P0867 code and that it has to do with the very same recall they have claimed to have supported and completed, which is once again not listed under any service completed on the vehicle. We are attempting to have this component looked at by the dealership, but they refuse to acknowledge the service campaign 963 and allow an inspection of no-charge. My husband has already observed with a endoscope, and observed the transmission fluid, and replaced it, and there was no obvious signs of an issue. There were no previous issues to the vehicle, and no previous lights. After the light for the code came onto the dashboard, the transmission has now struggled to maintain steady fluid transitioning between gears, and has maintained a sluggish and resistance feeling.

Filed Aug 24, 2026 · Engine · FL

After the car was started, I drove 3 houses over when there was a loud knocking sound and the car just shut off. When trying to restart it wouldn't and the check engine, battery, and oil lights came on. After pushing it out of the road we checked the oil and it was empty. The oil has just been changed less than 2 months ago. Now the engine is seized.

Filed Aug 20, 2026 · Engine · 151,000 miles · OK

The contact owns a 2012 Hyundai Elantra. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power and stalled. The check engine warning light illuminated after the failure. The vehicle was taken to an independent mechanic, where the vehicle was diagnosed with a failed crankshaft sensor. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the independent mechanic, and the contact was advised to take the vehicle to the dealer. The contact was informed of an unknown recall; however, the VIN was not associated with a recall associated with the failure. The dealer was made aware of the failure. The contact was informed that the repair was not covered under warranty because the mileage was 3,000 miles over the mileage limitation. The vehicle was scheduled for a diagnostic test with the dealer. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 151,000.