{"nhtsa_id":10121806,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-11-03","date":"2017-09-21","document_id":"18-011-17 REV. B","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0703 - Brake Switch 2 Performance. U0418 - Invalid Data Received From Brake System Control Module. P0128-00 - Thermostat Rationality. P1185-00 - General Pressure Sensor Correlation. U1504-00 - Implausible Message Data Length Received From Steering Angle Sensor. In addition, the following software updates are available:Enhancements which allows the catalytic convertor to operate cooler. Change to reduce pressure fluctuations within the multi-air solenoid.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10121806-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10121806-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10121806","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":["P0128","P0703","P1185","U0418","U1504"],"topics":[],"vehicles":[{"make":"FIAT","model":"500X","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_fiat_500x"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}