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Service bulletins for the 2019 Ford Flex

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.

50 on file from NHTSA, as of 2026-10-19.

About P0109 on the 2019 Ford Flex: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P0109 are shown. Show all

Bulletins, newest first
TSB 19-22122019-08-07. Service bulletin. ENGINE AND ENGINE COOLING. Some 2018-2019 Explorer/Flex/Taurus/MKT vehicles equipped with a 3.5L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL), powertrain malfunction (wrench) lamp, Service AdvanceTrac message, Hill Start Assist Not Available message, and/or lack of power with diagnostic trouble codes (DTCs) P0107, P0108 and/or P0109 present. This may be due to a faulty manifold absolute pressure and temperature (MAPT) sensor. To correct the condition, follow the Service Procedure to replace the MAPT sensor.
TSB-22122019-08-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING. Some 2018-2019 Explorer/Flex/Taurus/MKT vehicles equipped with a 3.5L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL), powertrain malfunction (wrench) lamp, Service AdvanceTrac message, Hill Start Assist Not Available message, and/or lack of power with diagnostic trouble codes (DTCs) P0107, P0108 and/or P0109 present. This may be due to a faulty manifold absolute pressure and temperature (MAPT) sensor. To correct the condition, follow the Service Procedure to replace the MAPT sensor.
TSB 19-21832019-07-03. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Some 2018-2019 Explorer/Flex/Taurus/MKT vehicles equipped with a 3.5L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL), powertrain malfunction (wrench) lamp, Service AdvanceTrac message, Hill Start Assist Not Available message, and/or lack of power with diagnostic trouble codes (DTCs) P0107, P0108 and/or P0109 present. This may be due to a faulty manifold absolute pressure and temperature (MAPT) sensor. To correct the condition, follow the Service Procedure steps to diagnose and replace the MAPT sensor.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.