πŸ”§ FixIt
🟑

P0420 on DODGE JOURNEY

Severity
Medium
NHTSA Reports
5
Most Affected
2017, 2009, 2014

What P0420 Means on Your DODGE JOURNEY

Real DODGE JOURNEY Owner Reports (Source: NHTSA Complaints Database)

"I have power door locks not working except manually or driver door by key. Key fob and door module for locks will not function. I cannot open the hatch due to power lock function."

β€” 2009 DODGE JOURNEY owner β€’ ELECTRICAL SYSTEM,AIR BAGS,ENGINE β€’ Filed 12/22/2021

"The radio will randomly turn stations and just completely go black. the a/c turns itself on and off. the airbag lights keep randomly coming up and then go away.this all happens rather i'm driving fast, slow, or stopped at a light and has happened since purchasing the car a year ago."

β€” 2014 DODGE JOURNEY owner β€’ ELECTRICAL SYSTEM,ENGINE β€’ Filed 12/15/2019

"At the end of jan/beginning of feb i contacted dodge cares with catalytic converter issue and my car was just at warranty of the that 30 miles from warranty and wanted them to give an extension because as soon as the light came on i could not get to the dealership."

β€” 2016 DODGE JOURNEY owner β€’ ENGINE β€’ Filed 01/23/2019

"My check light came on and when I check the code which was a p0420, Catalyst System Efficiency Below Threshold (Bank 1). Emissions Recall U67: Catalytic Converter Efficiency. This was part of the recall. Therefore it doesn’t meet the CA emissions standard."

β€” 2017 DODGE JOURNEY owner β€’ UNKNOWN OR OTHER,ENGINE β€’ Filed 04/07/2025

"The ETC warning light came on, then the car slowed down then stalled out and would not crank back up. Upon running a diagnostic, the following error codes displayed; P0420, P0340, P0197, P0117, P1D83, P2181(several codes showing up more than once showing permanent, pending)."

β€” 2017 DODGE JOURNEY owner β€’ STEERING,ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM β€’ Filed 12/06/2022

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 DODGE JOURNEY

20%
20%
20%
20%
20%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2009
1
2014
1
2016
1
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