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P0420 on JEEP RENEGADE

Severity
Medium
NHTSA Reports
2
Most Affected
2017

What P0420 Means on Your JEEP RENEGADE

Real JEEP RENEGADE Owner Reports (Source: NHTSA Complaints Database)

"my grandfather has own he renegade since it came out in 2017. it has had nothing but issues most of which as his granddaughter i had fixed. but the last at least year I've had his vehicle illuminate a check engine light. Especially in very wet weather, cold or hot weather."

— 2017 JEEP RENEGADE owner • POWER TRAIN,ENGINE • Filed 04/25/2024

"The contact owns a 2017 Jeep Renegade. The contact stated while driving approximately 40-45 MPH, the check engine warning light illuminated. Additionally, the contact stated that the vehicle was experiencing engine hesitation while driving at various speeds."

— 2017 JEEP RENEGADE owner • ENGINE AND ENGINE COOLING • Filed 03/22/2025

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

Common Causes of P0420 on JEEP RENEGADE

50%
50%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2017
2

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.

P0420 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