Acura MDX 2015–2017 — technical service bulletin
Bulletin B17070B · NHTSA communication 10115179 · issued Jul 26, 2017
Technical service bulletin
communication type
Power Train
component
2015–2017
model years
5
vehicle entries
Official summary
Service news article - Because of a transmission case casting flaw, the inside of the torque converter bracket hole in some 9-speed A/Ts is porous enough that ATF could leak from the hole. This flaw was found by the transmission factory during production.
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.