Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2017 Hyundai Elantra owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owned a 2017 Hyundai Elantra. The contact stated while driving approximately 45 MPH, the fuel warning light flickered and the radio activated and deactivated independently. The vehicle was taken to a dealer where it was determined that the vehicle was performing as designed due to a satellite not being connected. On another occasion, the vehicle accelerated on its own and the brake pedal hesitated to respond. The contact depressed the brake pedal to the floorboard in order for the vehicle to come to a stop. The vehicle was taken to another dealer due to the above failures; in addition to shuttering and jerking while depressing on the accelerator, as if it was not receiving fuel. The vehicle was not repaired. The contact did a private diagnosis which indicated electrical system malfunction. The contact was informed to start using a halo battery charger to jump the vehicle. …
The contact owns a 2017 Hyundai Elantra. The contact stated that while operating the vehicle, the check engine warning light would remain illuminated. The contact stated that the vehicle would jerk and hesitate and experience unintended acceleration. The vehicle was taken to the local dealer who diagnosed that the fuel injectors were faulty. The vehicle was not yet repaired. The manufacturer was contacted regarding the failure, but no assistance was offered. The approximate failure mileage was 60,000.
The contact owns a 2017 Hyundai Elantra. The contact stated that while driving at an undisclosed speed, the contact heard an abnormal whistling sound coming from the rear of the vehicle. The check engine warning light was illuminated. The vehicle was taken to an unknown dealer, where it was diagnosed that the fuel pump was fractured and had failed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 15,000.
For the past two weeks, the car has intermittently stalled out and the engine, oil, and battery lights come on. The dashboard electronics and radio stay on. When this happens, I have to put the car in park and turn it off, then turn it back on. It has restarted immediately each time and drives normally. It has stalled out multiple times in a day, but not everyday. I took it to my mechanic twice to pull an error code from the warning lights, but he could not. My safety and the safety of others were put at risk when it stalled out while I was deaccelerating on an exit ramp that merges with three other lanes. I could have been hit from behind by others exiting the interstate highway or hit on either side of my car from drivers switching lanes at that junction. It stalled out the same day in the middle of a roundabout, where drivers yield and merge at 30 mph. …
My 2017 Elantra with 107,000 miles (it has a 100,000 mile powertrain warranty) on it has just experienced the same issue as all of the other Hyundais that have been recalled. I was driving on Xmas evening 2024 and started hearing my engine making noises I had not heard before when excellerating but then they would go away. On my way home the check engine light went on for a couple of minutes but then went off and I was able to get home although the car did not seem to be riding well. The next day, the check engine light went on again and so I brought it in to my mechanic. He said that there were metal fragments/shavings in my oil that were clogging my engine, etc. He said that I need a new engine and said he had several other Elantras with the same issue and that I should take it to a Hyundai dealer because of all of their recalls/Class Action Lawsuits which extend warrantees, etc. …
Since January 2024 I have had issues with my car starting due to low oil. I just had an oil change so I knew something was wrong. The repair shop stated there were no leaks and put more oil in and said that sometimes the car will not start if there is not enough oil. February 2024 and the car wont start again. Filled it with oil and took it to the shop again. They stated that the engine is eating the oil and to take it to the dealer for a test. Since then the car has turned off multiple time both while idling and while on the freeway. When you hit the gas it will not accelerate either. In the past I was able to turn the car off and back on again and it would work just fine but now it seems more frequent. Also, while driving when experiencing these issues I have had the stereo screen shut off and restarted by itself. …
Bad Ignition Colis Poor Fuel Economy: if you notice that your car is getting less mileage from a full tank than normal, this could mean that you have a bad ignition coil. This takes place because, when your, spark plugs aren't getting a certain power, the system will try to compensate by taking more fuel. Hard Starts And Stalling: the ignition needs to spark at just the right time for the engine to start and a vehicle to run. If an ignition coil is malfunctioning and not delivering the required voltage to the spark plugs, you will find it hard to start the engine. Misfiring Engine: A malfunctioning ignition coil will cause your vehicle to misfire when you accelerate. In some other cases, a misfire could cause your vehicle to shut down while you are driving
Since buying my vehicle new, it has had three ignition coils fail at different times. The car begins to shudder, rough idle, not accelerate and all of a sudden just will not respond to giving it gas. This happens at any speed therefore it is a danger especially entering or exiting highways or switching lanes. It has been unpredictable. The check engine light does come on some of the time as this problem is occurring, not before. The dealer replaced the first two coils (51, 576 miles and 56, 446 miles) under the warranty. The third coil replaced (78, 391 miles), they would not cover under warranty, nor would they replace the 4th coil as a precaution.
2017 Hyundai Elantra GT suffered leakage from the hydraulic brake lines located under the driver's seat which can cause sudden and total braking failure. The leakage was caused by severe rust and corrosion trapped by the underbody panels. The fuel line was also severely corroded, with imminent failure. While Transport Canada issued an official safety recall for this exact engineering defect on the same generation of Elantra GT under Transport Canada (Campaign 2023125), Hyundai Motor America has failed to extend this protection to U.S. consumers, leaving vehicles on U.S. roads with active, life-threatening brake and fuel line failures.
Loss of engine power, car shuts abruptly off while driving. increases the risk of a crash and death. Less than a year after I purchased my car from the dealer. My check engine light would turn on and off frequently. Secondary mechanics couldn't diagnosis problem engine check would show unnecessary/ different codes. Car burns oil at a very fast rate. Shut of three times while driving yesterday on the LIE. I am scared for myself and my families safety. I can't afford a new engine or car. Please help The 2017 Electra SE has many recalls for make and model. My vin isn't under recall.
Fuel System complaints in other Elantra years
Frequently asked questions
How common are fuel system problems on the 2017 Hyundai Elantra?
NHTSA has 32 complaints about the fuel & propulsion system of the 2017 Hyundai Elantra, 4% of the model year's 795 complaints. The component named most often is fuel injection system › fuel rail (1 mentions).
Is there a recall for 2017 Hyundai Elantra fuel system problems?
No. NHTSA lists no fuel & propulsion system recall for the 2017 Hyundai Elantra, though it has 4 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2017 Hyundai Elantra fuel system problems start?
Half of the complaints with a recorded mileage happened before about 50,000 miles, and 23% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 1 injury to fuel & propulsion system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.