Service bulletins for the 2019 Ford Fiesta
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.
41 on file from NHTSA, as of 2026-10-19.
About P0128 on the 2019 Ford Fiesta: what the code means, and the bulletins and recalls about the same components.
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By component
By trouble code
Only bulletins with trouble code: P0128 are shown. Show all
| TSB 19-2116 | 2019-05-06. Service bulletin. ENGINE AND ENGINE COOLING. Some 2016-2019 Fiesta vehicles built on or before 19-Feb-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0128 stored in the powertrain control module (PCM). This may be due to some PCM software parameters related to engine temperature. To resolve the condition, reprogram the PCM. |
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| SSM 47751 | 2019-03-04. Service bulletin. ENGINE. Some 2018-2019 Fiesta vehicles may exhibit an illuminated MIL with DTC P0128 stored in the powertrain control module (PCM). If the vehicle exhibits this DTC, clear all DTCs and allow the vehicle to sit for a minimum of 3 hours. Then drive the vehicle for at least 16 km (10 miles) and retest for DTCs. If DTC P0128 does not return, do not replace the thermostat valve, release the vehicle at this time. If DTC P0128 returns, refer to the Powertrain Control/Emissions Diagnosis (PC/ED) Manual for normal diagnostics. Engineering is investigating, monitor OASIS for updates. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.