2013 FIAT 500 Check Engine Light

It means the powertrain control module stored an OBD-II fault code identifying a system that needs attention.

Your 2013 FIAT 500 uses onboard diagnostics to track engine and emissions performance. A steady light can point to minor issues like EVAP leaks, while a flashing light signals a severe misfire that can damage the catalytic converter. Our Tucson team retrieves codes and freeze-frame data, then verifies the fault with targeted testing before recommending repairs.

• Applies to the 1.4L inline-4, premium unleaded recommended
• Codes map to systems such as EVAP, O2 sensors, MAF, misfire
• Schedule service for a professional diagnostic

Frequent causes include EVAP leaks (often a loose gas cap), O2 sensor faults, MAF sensor issues, misfires, and catalytic converter efficiency codes.

On the 2013 FIAT 500, small EVAP leaks are common and may follow refueling if the cap isn’t tightened. Aging O2 sensors and intake airflow problems can also trigger the light and affect fuel economy. Left unresolved, repeated misfires risk damaging the catalytic converter—an avoidable high-cost repair.

• Typical codes: P0456 (EVAP small leak), P0133/P0138 (O2), P0101 (MAF), P0300–P0304 (misfire), P0420 (catalyst)
• Addressing causes early protects performance and emissions
• Check current service specials before you book

If the light is steady, drive cautiously to a service facility; if it’s flashing, stop driving to avoid potential catalytic converter damage.

A steady light typically indicates a minor or emissions-related fault. A flashing light on the 1.4L engine signals an active misfire that can overheat the catalyst and cause expensive damage. Reduce load and schedule promptly if steady; safely pull over and arrange service if flashing.

• Flashing MIL = misfire risk; avoid hard acceleration
• Steady MIL = limited driving OK; check soon
• Call (520) 462-9486 or schedule an appointment

A parts store reads codes; our dealer diagnostic identifies the root cause using factory data, isolation testing, and a written repair plan.

Codes alone don’t confirm which part failed—multiple issues can trigger the same code. Our certified MOPAR technicians access proprietary data, review freeze-frame information, and perform pinpoint tests to verify the fault before any repair. You’ll receive findings and next steps clearly documented.

• Factory-trained technicians for FIAT systems and software
• Guided diagnostics + verification testing, not guesses
• Transparent estimate after diagnosis; book now

No—resetting clears readiness monitors, which typically causes an automatic fail until all monitors complete.

Clearing codes on the 2013 FIAT 500 erases diagnostic data and sets monitors to “not ready.” You must drive a complete cycle to reset readiness, and the underlying fault must be repaired to prevent the light from returning. We can diagnose the cause and confirm monitors are ready before you test.

• Repair first; then confirm OBD-II readiness
• Avoid last-minute resets before emissions testing
• Schedule service for a pre-test check

Larry H. Miller Dodge RAM FIAT Tucson, 4220 E 22nd St, Tucson, AZ, offers certified diagnostics for the 2013 FIAT 500.

Our service department is staffed by factory-trained MOPAR technicians who know your FIAT systems inside and out. We combine OBD-II data with hands-on tests to confirm the cause and provide a clear repair path. Book online or call for availability.

• Call (520) 462-9486 for scheduling
• Complimentary inspections with every visit
• See current service coupons before you arrive

Your visit starts with a professional OBD-II scan to retrieve stored and pending codes for the 2013 FIAT 500, followed by a review of freeze-frame data to understand when and how the fault occurred. A certified technician performs targeted checks—visual inspections, smoke testing for EVAP leaks, circuit and sensor verification, and, if indicated, a road test to duplicate symptoms. We confirm the root cause with isolation testing before recommending any work. You receive a written estimate and a clear explanation of options. Every visit also includes a Complimentary Inspections benefit and a free vehicle wash. Ready to proceed or just need answers? Call (520) 462-9486 or schedule service now; check our service specials for current offers.

For Tucson drivers, accurate diagnostics prevent repeat visits and unnecessary parts. Our dealer team pairs advanced scan capability with FIAT-specific know-how to interpret data from your 1.4L inline-4 and verify faults through hands-on tests. Generic code readers stop at “what code”; we go further to determine “why it set” and “what fixes it.” Whether youre experiencing a steady MIL from an EVAP leak or a flashing light from a misfire, we isolate the cause and explain your next steps. Visit us at 4220 E 22nd St, Tucson, AZ, or call (520) 462-9486. Prefer to plan ahead? Schedule service online and review service coupons before you arrive.

Several fault patterns often appear on the 2013 FIAT 500. P0456 indicates a small EVAP leak—frequently a loose or failing gas cap—which can be inexpensive to resolve if caught early. P0133 or P0138 signal O2 sensor performance issues that, if ignored, can reduce fuel economy and accelerate catalytic converter wear. P0101 points to MAF sensor/airflow concerns that affect drivability. P0300–P0304 denote random or cylinder-specific misfires; continuing to drive with misfires risks overheating the catalytic converter and raising repair costs. P0420 flags catalyst efficiency below threshold and may stem from upstream issues like misfires or exhaust leaks. Bring your 2013 FIAT 500 to Larry H. Miller Dodge RAM FIAT Tucson in Tucson for an accurate diagnosis — schedule service.