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U0401 on JEEP PATRIOT

Severity
Medium
NHTSA Reports
2
Most Affected
2014

What U0401 Means on Your JEEP PATRIOT

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

"The exhaust manifolds seem to be cracking in the same place."

— 2014 JEEP PATRIOT owner • ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,ENGINE • Filed 04/14/2019

"Traveling 40 mph engine misfires check engine, throttle body, and traction warning lights on. vehicle will not accelerate. turn off engine resets throttle body and traction control warning lights check engine light remains on vehicle accelerates normally."

— 2014 JEEP PATRIOT owner • ELECTRONIC STABILITY CONTROL (ESC),ENGINE,FUEL/PROPULSION SYSTEM • Filed 01/31/2020

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

Common Causes of U0401 on JEEP PATRIOT

50%
50%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2014
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.

U0401 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