Service bulletins for the 2018 Fiat 500X
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.
By type
By component
By trouble code
Only bulletins with component: Transmission control module are shown. Show all
| 21-022-19 | 2019-07-15. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience the following:Malfunction Indicator Lamp (MIL) illumination, Electronic Vehicle Information Center (EVIC) message states ?Service Transmission? and transmission intermittently goes into neutral with PRNDL flashing when vehicle is stopped. The vehicle may or may not resume normal transmission operation after cycling the shifter or ignition. |
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| 18-042-19 | 2019-07-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: Powertrain Control Module (PCM) Update This bulletin involves reprogramming the 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:P0456 - EVAP System Small Leak. P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor 1. P0016 - Crankshaft/Camshaft Timing Misalignment - Bank 1 Sensor 1. P0606 - Control Module Processor. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.