TSB SSM-47993 — Ford and Lincoln Service bulletin

SSM-47993 is a service bulletin on file with NHTSA for 3 Ford and Lincoln models, 2015 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. 2015-2016 Edge/MKX/Flex/MKT/MKZ/MKS/Taurus/Taurus Police/Explorer/Explorer Police vehicles built on or before 10-Jun-2016 and equipped with a 3.5L or 3.7L engine, all wheel drive (AWD) and a power transfer unit (PTU) may exhibit a PTU venting, an odor originating from the PTU,…

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

1Document filed
3Vehicles named
1Model year

Vehicles and model years SSM-47993 names

VehicleModel years
Ford Flex 2015
Ford Taurus 2015
Lincoln MKX 2015

Every document filed under SSM-47993

Document IDFiledType
SSM 47993 May 20, 2019 Service bulletin

What SSM-47993 covers

Transmission & drivetrain — the component vocabulary NHTSA files this communication under.

← All Ford Flex TSB years TSB lookup by model

Questions buyers ask

What is TSB SSM-47993?

SSM-47993 is a service bulletin filed with NHTSA by Ford and Lincoln, covering 3 Ford and Lincoln models across the 2015 model years. NHTSA's summary reads: 2015-2016 Edge/MKX/Flex/MKT/MKZ/MKS/Taurus/Taurus Police/Explorer/Explorer Police vehicles built on or before 10-Jun-2016 and equipped with a 3.5L or 3.7L engine, all wheel drive (AWD) and a power transfer unit (PTU) may exhibit a PTU venting, an odor originating from the PTU,…

Which vehicles does SSM-47993 cover?

NHTSA's file names Ford Flex (2015); Ford Taurus (2015); Lincoln MKX (2015). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

Is TSB SSM-47993 a recall, and is the repair free?

No. SSM-47993 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

How do I get the full text of SSM-47993?

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under SSM-47993, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under SSM-47993. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.