Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On
full bulletin at NHTSA ↗2015 FIAT 500L electrical problems
moderate 4 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
4
Recalls
0
Avg fix
$850
When does it fail?
Of the 4 electrical complaints filed for the 2015 FIAT 500L, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA electrical complaint has been filed on this vehicle in over 10 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Connector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar Connector Repair Kit Website to confirm part number and applicability. There is an error with the wiring diagrams in Service Library that is causing the incorrect repair kit part number to populate. Please use the Mopar Connector Repair Kit Website until this issue is resolved.
full bulletin at NHTSA ↗Connector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar Connector Repair Kit Website to confirm part number and applicability. There is an error with the wiring diagrams in Service Library that is causing the incorrect repair kit part number to populate. Please use the Mopar Connector Repair Kit Website until this issue is resolved.
full bulletin at NHTSA ↗Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On
full bulletin at NHTSA ↗No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
Had to replace the battery at around 5000 miles. It would not hold charge and be randomly dead usually after not using car for a couple of days. I replaced the battery with a top name brand and haven't had an issue since. I noticed when I was looking to buy every Fiat 500l that the dealer was going let me take a test drive in had to be jump started.
Tl* the contact owns a 2015 Fiat 500l. The contact stated that the reverse camera sensor failed. The vehicle was taken to the dealer on three occasions where all four rear sensors and the camera inside the vehicle were replaced, but the failure persisted. The failure mileage was 5,200. Updated 5/26/15*cn
Tl* the contact owns a 2014 (na) Fiat 500l. The contact stated that the vehicle experienced a lack of acceleration. The ttms and electrical throttle body warning indicators illuminated. The contact pulled off the road and attempted to restart the vehicle; however, the vehicle still did not accelerate. The vehicle was towed to the dealer where it was diagnosed that the vehicle needed a software…
Had electrical trouble with your 2015 FIAT 500L?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2015 FIAT 500L?
It's a documented issue but not catastrophic. 4 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Based on the 4 complaints filed, electrical issues most often appear around 14,027 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2015/FIAT/500L.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.