Have 2009 LC with 200k miles, that recently, if I have to STOP on an incline….slides backwards while in “D”, as I remove my foot off the brake and move toward the gas pedal (the normal motion). The slide backward is so aggressive (gravity on a 6k pound truck and the traction error light comes on), I’ve had to use my left foot on the brake As I hover over the gas pedal with my right foot so that I don’t slide into a car behind me. ATF has recently been replaced although the fluid was black when drained (after only 20k miles after previous change). Diff fluids were changed about 20k miles agol. AB60F Transmission overall shifts as normal (no rough shifting)…no other complaints other than this safety issue of the “sliding back“. I’ve never had transmission issues at 200k!, just always changed the fluids so I know I’m due for some maintenance. And if anybody has a good transmission person in the Portland, Oregon area…shoot over any recommendations. Does anyone have any thoughts as to what might need fixed? (Trans clutches, thorough fluid flushes/exchanges, etc.). I appreciate anybody’s help, Thank you!