Affected Component: ENGINE AND ENGINE COOLING

Date Published
AUG 28, 2020
NHTSA TSB #
10179158
TSB Document
Summary
Some 2019-2020 F-150 vehicles equipped with a 3.3L Duratec engine and built on or before 18-Aug-2020 may exhibit a lack of heat intermittently. This may be due to the powertrain control module (PCM) not running the auxiliary coolant pump during stop-start situations. To correct the condition, follow the Service Procedure to reprogram the PCM.