P0420 on JEEP PATRIOT
What P0420 Means on Your JEEP PATRIOT
Real JEEP PATRIOT Owner Reports (Source: NHTSA Complaints Database)
"My jeep started throwing codes p0420, which is saying the catalyst efficiency is below threshold, aka catalytic converter. there have been recalls for this make, model, and year already. i find it hard to believe my car just so happens to not be one of the vehicles to be recalled."
"Tl* the contact owns a 2016 jeep patriot. the contact stated that the check engine warning light illuminated and remained illuminated. the contact performed a diagnostic test on the vehicle himself and retrieved failure code: p0420 catalytic system efficiency below threshold."
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 PATRIOT
Percentages based on NHTSA complaint component analysis for this vehicle.
Complaint Trend by Year
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.
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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.
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3
Compare repair quotes
Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.