M.I.L. = Malfunction Indicator Lamp/Light
DTC = (I think) Diagnostic Trouble/Test Code

So the car pukes, the Malfunction Indicator latches and a diag code gets dumped into the system log.
If that code = P0AE2 this TSR applies.
Now the question (in my mind) is this only a corrective TSB or will they do a recall as preventative?