P0302 on HYUNDAI ELANTRA — Cylinder 2 Misfire Detected

Q: "What does P0302 mean on a HYUNDAI ELANTRA?"

"P0302 indicates: Cylinder 2 Misfire Detected. This is a ignition system code. 3 HYUNDAI ELANTRA owners have reported this to NHTSA."

Q: "What are the most common causes of P0302 on HYUNDAI ELANTRA?"

"Based on 3 NHTSA reports, the most commonly cited components are: Engine, Vehicle Speed Control,Engine,Forward Collision Avoidance. These percentages are based on the component field in owner complaints."

Q: "Is P0302 serious on my HYUNDAI ELANTRA?"

"Of 3 NHTSA reports for this code on HYUNDAI ELANTRA, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my HYUNDAI ELANTRA shows P0302?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What P0302 Means on Your HYUNDAI ELANTRA

P0302 is a diagnostic trouble code indicating: Cylinder 2 Misfire Detected. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

3 HYUNDAI ELANTRA owners have reported this issue to NHTSA across model years 2017-2020. Most reports come from the 2017, 2018 model years. The most commonly reported component is Engine (66.7% of reports).

Real HYUNDAI ELANTRA Owner Reports

Source: NHTSA Complaints Database

"This is the second time my check engine light has come on while driving and car vibrating and shaking in the middle of heavy traffic and also idling at stop lights/signs. Why does this keep happening? The codes were registered P0301/P0302."

— 2017 HYUNDAI ELANTRA owner · ENGINE · Filed 01/18/2023

"I started my vehicle and it was running sluggish and low idle. I had an engine light and when I tried to drive there was a clanking sound."

— 2018 HYUNDAI ELANTRA owner · ENGINE · Filed 06/20/2025

"Cruise control on 55mph, car has slowed down going straight no uphill or downhill and accelerator did not work nothing blocking the accelerator. Had to pull over to a shoulder to shut engine off and on to drive. Tapping cruise control up to speed up in regulated area such as from 55 to a 65mph zone."

— 2020 HYUNDAI ELANTRA owner · VEHICLE SPEED CONTROL,ENGINE,FORWARD COLLISION AVOIDANCE · Filed 10/26/2025

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1

'17

1

'18

1

'20

Common Causes on HYUNDAI ELANTRA

Based on NHTSA complaint component analysis for this vehicle.

ENGINE 66.7%

VEHICLE SPEED CONTROL,ENGINE,FORWARD COLLISION AVOIDANCE 33.3%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P0302 mean on a HYUNDAI ELANTRA? ▾

P0302 indicates: Cylinder 2 Misfire Detected. This is a ignition system code. 3 HYUNDAI ELANTRA owners have reported this to NHTSA.

What are the most common causes of P0302 on HYUNDAI ELANTRA? ▾

Based on 3 NHTSA reports, the most commonly cited components are: Engine, Vehicle Speed Control,Engine,Forward Collision Avoidance. These percentages are based on the component field in owner complaints.

Is P0302 serious on my HYUNDAI ELANTRA? ▾

Of 3 NHTSA reports for this code on HYUNDAI ELANTRA, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my HYUNDAI ELANTRA shows P0302? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.