2019 Hyundai Elantra · symptom sheet
Check engine light or misfire
- 34owner reports
- 89,000median miles
- 1involved a crash
Newest report Jun 26, 2026 · checked Oct 2, 2026
163 of the 251 complaints on this car are about the engine. 34 of those describe misfire.
Tick what matches of 34 reports
Misfire on other Elantra years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2015, 2016, 2021, 2022.
What this problem usually is
These reports start with the check engine light. Many describe the engine running rough or shaking at idle, a P0300-series code, or a catalytic converter code. A worrying number say the light was flashing. Owners often list ignition coils or spark plugs already replaced, and the light coming back afterward.
What got replaced
Owners who name the part that was replaced mention the sensor (3 reports).
Recalls and investigations
One recall on the engine covers the 2019 model year. A recall on the same system isn't always the same failure, so read the defect text.
The piston oil rings may not have been properly heat-treated, which could result in engine damage.
The recall on the 2019 Hyundai Elantra, with the owner complaints on each recalled system
NHTSA investigations into the engine on the Elantra
Loss of motive power. Closed dec 12, 2023.
Engine fires. Closed feb 5, 2024, led to recall 23V-877.
Engine stalling - fuel pump failure. Closed sep 3, 2008, led to recall 08V-429.
Post-crash fuel tank leak. Closed jul 13, 2004, led to recall 04V-208.
Fuel cap replacement campaign 36. Open, led to recall 00V-095.
None of these investigations covers the 2019 model year.
When it happens
The middle half of failures fell between 50,400 and 140,000 miles, from the 18 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 10 service bulletins or notices for the 2019 Hyundai Elantra that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Hyundai has become aware that your Hyundai Elantra equipped with a 2.0 ATK engine may have been incorrectly updated with Cylinder Noise Detection System (CNDS) software intended only for Korean-built Elantra vehicles and may not meet specifications.
Certain Elantra (ADA) vehicles may have been incorrectly updated with Cylinder Noise Detection System (CNDS) software that can set DTC P132700; this software was intended only for Korean-built Elantra (AD) vehicles.
Hyundai is conducting a service campaign 974 to enhance the knock sensor logic with the Cylinder Noise Diagnostic System (CNDS) software update.
Hyundai is conducting a service campaign to enhance the knock sensor logic with the Cylinder Noise Diagnostic System (CNDS) software update.
6 more on the 2019 Hyundai Elantra page.
What owners wrote
“Excessive oil consumption, shudder in motor while driving . Check engine light cam on. Visibility in headlights very low and high beams only working sometimes.”
Filed May 9, 2025
“Vehicle has rough idle on start up that will vibrate and shake the car. It could be felt in the driver seat. RPMs range 2000-1000 when the rough idle is present. It has been taken to dealership and as expected they claim they cannot reproduce issues. Car has. 55,000 miles.”
Filed Mar 26, 2023 · 55,000 miles
Should you keep driving it?
This page can't tell you that. 1 of 34 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Which lights mean pull over now? Warning lights by color and urgency
Other problems on this car
- Engine stalls or loses power while driving 66 reports
- Engine failure, knocking or rod bearing 57 reports
- Headlights too dim or fail 54 reports