Service bulletins for the 2017 Fiat 500
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.
105 on file from NHTSA, as of 2026-10-19.
About P0326 on the 2017 Fiat 500: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P0326 are shown. Show all
| 18-026-17 | 2022-08-08. Service bulletin. BACK OVER PREVENTION; EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM. Flash: 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 the following DTCs have been set: P0141-00 - O2 Sensor 1/2 Heater Performance. P1523-00 - VVA Low Oil Pressure. 1524-00 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled. P0000-00 - will be displayed but should really be displaying P0326-00 (Knock Sensor 1 Circuit Performance). |
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| 18-026-17 | 2018-06-11. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Flash: 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 the following DTCs have been set: P0141-00 - O2 Sensor 1/2 Heater Performance. P1523-00 - VVA Low Oil Pressure. 1524-00 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled. P0000-00 - will be displayed but should really be displaying P0326-00 (Knock Sensor 1 Circuit Performance). |
| 18-116-16 | 2017-11-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: 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 the following Diagnostic Trouble Code (DTC) has been set: P0000-00 - will be displayed but should really be displaying P0326-00 (Knock Sensor 1 Circuit Performance). |
| 18-083-17 | 2017-11-03. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); ELECTRICAL SYSTEM; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). 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 the following Diagnostic Trouble Codes (DTCs) have been set:P1D7F-00 - ETC Self-Learning Failure. P0000-00 - Will be displayed but should really be displaying P0326-00 (Knock Sensor 1 Circuit Performance). |
| 18-026-17 REV. A | 2017-11-03. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Flash: Powertrain Diagnostic and System Enhancements 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 the following DTCs have been set:P1D7F-00 - ETC Self-Learning Failure. P0141-00 - O2 Sensor 1/2 Heater Performance. P1523-00 - VVA Low Oil Pressure. 1524-00 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled. P0000-00 - will be displayed but should really be displaying P0326-00 (Knock Sensor 1 Circuit Performance). |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.