2007 RDX.

Happened while driving on a very steep hill. After getting back on level road, car runs fine. But the check engine light is on and the D light still blinks.

Have kept up with 3x3 Tranny fluid service every 30k kms, using only ATF DW-1, never flushed.

 

Just an update:

Had to replace 2nd Clutch Transmission Fluid Pressure Switch.

Parts + Labour + Diagnostics was $300 CAD at a local tranny shop

https://www.2carpros.com/questions/2...-for-a-jdm-cl7

 

From what I hear those pressure switches tend to go. There are...3 in total I think? Each in a different spot on the outside of the transmission, some easier to reach than others. I know there other threads out there where people have done DIY swaps, even as preventative maintenance.