NHTSA service bulletin

NHTSA Service Bulletin 10220625: 2015-2018 Fiat 500

Official manufacturer communication context for 2015-2018 Fiat 500, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10220625 summary graphic for 2015-2018 Fiat 500
10220625NHTSA document ID
Manufacturer communicationcommunication type
3affected product rows
90/100quality score

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

Flash: Drivetrain Control Module (DTCM) Diagnostic and System Improvements This bulletin involves reprogramming the DTCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs):C2502-64 - Signal Plausibility Failure. C2210-92 - ETM Hall Sensor Performance Or Incorrect Operation. C2220-54 - ETM Calibration Error Missing Calibration. C2020-01 - ECU Internal Fault - General Electrical Failure. This software update also includes the following enhancementsReduce Rear Drive Module (RDM) noise during disconnect phase at speeds above 45 kph (28 mph)North America Only.

What this bulletin may mean before buying

Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.

Affected products listed in this communication

MakeModelModel yearsBuyer note
Fiat5002015Ask for service records and run the exact VIN before purchase.
Fiat500x2016-2018Ask for service records and run the exact VIN before purchase.
JeepRenegade2015-2018Ask for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 10220625?

Flash: Drivetrain Control Module (DTCM) Diagnostic and System Improvements This bulletin involves reprogramming the DTCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs):C2502-64 - Signal Plausibility Failure. C2210-92 - ETM Hall Sensor.

Is a service bulletin the same as a recall?

No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.

How should a used-car buyer use this bulletin?

Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.

Check the exact VIN before you buy

Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.

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