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 owns a 2017 Hyundai Elantra GT. The contact stated while driving at an undisclosed speed, the vehicle lost motive power while accelerating. Additionally, while driving at approximately 65-70 MPH, the vehicle failed to accelerate while depressing the accelerator pedal and decelerated to 45 MPH. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that an unknown fuse needed to be replaced. The vehicle was repaired, but the failure recurred. The vehicle was taken to another dealer, Brookshire Hyundai & Ioniq, 34656 Katy Fwy, Brookshire, TX 77423, where it was diagnosed that a point and plug, an oil change, and an oil consumption test were performed. The dealer recommended a catalytic converter replacement. The vehicle was repaired, but the failure persisted. …
My vehicle keeps shutting down while I'm driving. It happened 5 times in the past week and twice today. It happens when I'm driving slow to make a turn or after the car has been stopped for a while (i.g. stop light and drive through window). Three out of five times were in areas where I could safely restart my car. The other two were in the middle of a busy expressway while making a turn and passing through a busy intersection. I was almost hit from behind. The car that swerved to avoid hitting me was also nearly hit by a vehicle in the other lane. I've done research and several other people had this issue but there's no recall on my car. I don't know if it's a battery issue or electrical wiring, etc., but it is terrifying. Each time it happens my vehicle makes a strange rattling nose and I can't quite tell where it's coming from. The car also shakes for a while afterwards.
The engine of my vehicle malfunctioned. It is available for inspection upon request, it will have to be towed. The problem put myself and others in danger as the car stopped as I was driving in the middle of a 3-lane highway in the far left lane. Others were put in danger as they had to swerve to avoid hitting me. That itself could have caused a chain collision as other vehicles in the middle lane were put in danger. I was also at risk to get rear ended as one might not notice that my speed has stopped increasing. I have already had it towed to a local Hyundai dealership and auto shop; both said it needs a new engine. Towing receipt is shown below. I had no warning lights on my dash prior to the engine failure. A battery light and check engine light appeared after I was able to safely pull to the side of the road and try to start the car again.
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.
Originally I had gottem my oil changed at the Hyundai dealership 2 months before . The car was turning off on me while driving making slow turns or slowing down to 5mph or less. Then my car broke down on me and wouldnt turn on. Mechanic was saying there was no oil in and it created a sludge in the engine basically ruining the car. My check oil light never came on, and the oil was just recently changed so this shouldve been apart of the recall where similar issues happened.
Car would just stall out while driving! Would have to put car in park and then try to turn back on. Also burning through oil very fast. Had to replace the timing belt just for 20K miles later having the same issue!
I own a Hyundai Elantra with approximately 103,000 miles. The vehicle has developed an intermittent issue where the engine will suddenly stall while driving. This most often occurs when I am decelerating and turning, such as when entering or navigating roundabouts. At the time of the stall, multiple warning indicators appear simultaneously, including the check engine light, battery warning light, and a "no key detected" message. There are no prior warning signs before the failure occurs-no unusual noises, no loss of power leading up to the event, and no dashboard warnings in advance. The stall is sudden and unexpected. When the vehicle stalls, I must quickly shift into park and restart the engine. The car restarts immediately without hesitation, and all warning lights disappear. The vehicle then operates normally again until the issue randomly reoccurs. This has happened multiple times. …
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. …
I have a 2017 Hyundai Elantra. Started having problems with picking up speed rpms jumping and feeling like the car doesn't want to go. This started at 7,000 miles and I bought the car brand new off the lot it has been in over 8 times for this issue and have been told that nothing is wrong with the car or that because my car is not throwing check engine lights they wont fix it under warranty, or I'm not using a Hyundai approved gas station so this is why I'm having problems with the car, now at 29,000 miles still having problems its the worst on the expressway in stop and go traffic.now I went to have my oil changed and found out I was low on 2 quarts of oil and my spark plugs have oil on them once again the car has to go back to the dealership, I was made fully aware of what could happen if the engine goes. …
The issue has happened while my vehicle has been stationary and in motion, on a ciy street, on a highway and while turning. The check engine light comes on as the car shakes. If I'm in motion, the light will stay on while my foot is on the accelerator, turn off when I take it off the accelerator and come back on when it reaches 1rpm's. If I'm stopped it will jump forward when I press the gas to accelerate (the whole time the check engine light is on). While I'm stationary, it will stay on while it's at 1rpm's or below. I have gone to the dealer a couple times already to get to the bottom of it. The first time they told me it had to do with my spark plugs so I did the service to get that taken care of. The second time I went they told me they couldn't find any code to indicate a problem. Here we are again and I'm having the same issue. …
Acceleration complaints in other Elantra years
Frequently asked questions
How common are acceleration problems on the 2017 Hyundai Elantra?
NHTSA has 25 complaints about the speed control & acceleration of the 2017 Hyundai Elantra, 3% of the model year's 795 complaints.
Is there a recall for 2017 Hyundai Elantra acceleration problems?
No. NHTSA lists no speed control & acceleration 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 acceleration problems start?
Half of the complaints with a recorded mileage happened before about 31,000 miles, and 50% before 25,000 miles.
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.