I searched but cant seem to find any threads related to our issue. Our 2014 MDX has been pulsing a little when accelerating under light to medium loads. It's a CPO so still under warranty and we brought it in and they supposedly did a software update on the AT but it didn't change. IIRC a while back when it had the B123 service I took it in for the drain and fill and I did the rest. It's really not too bad and my wife who drives it mostly doesn't notice it but I do since I drive a BMW and a Tacoma that accelerate normal. To be honest I cant really tell if its the tranny or engine like fueling or something? When its doing it you can feel it and actually see the revs fluctuate some as the revs are climbing (not related to a shift). So as I said it seems like it could be a fueling issue or slight tranny slipping but at full throttle it seems to be fine? Wierd? Next time we have to take it in I'll bring it up again just wondering if anyone here has experienced the same thing.