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P0302 on HYUNDAI ELANTRA

Severity
Medium
NHTSA Reports
3
Most Affected
2017, 2018, 2020

What P0302 Means on Your HYUNDAI ELANTRA

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

Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.

Common Causes of P0302 on HYUNDAI ELANTRA

66.7%
33.3%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2017
1
2018
1
2020
1

What To Do Next

  1. 1
    Check for recalls on YOUR VIN

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.

  2. 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. 3
    Compare repair quotes

    Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.

P0302 on Other Vehicles

Data sourced from the National Highway Traffic Safety Administration (U.S. Department of Transportation) and the SAE J2012 OBD-II standard. Code definitions follow the SAE J2012 / ISO 15031-6 standard. Owner reports are filed directly with NHTSA by vehicle owners. This information is provided for educational purposes only and should not replace professional automotive diagnosis. Always consult a qualified mechanic for vehicle repair decisions.

Last updated: March 2026