A few months ago, when shifting from parking to R or D, the green D blinked, a tranny malfunction warning showed, it started to show more often, The Mechanic which usually performs maintenance on the RDX, told me should be the Gamma Switch or shift position switch, so I ordered it from the dealer, learned they need to perform some programming once the new unit was installed; so it needed to be replaced at the dealer; about the same time this transmission warning showed, a VSC check warning showed when going at speed, either in the Hwy or secondary roads, not related to the condition of the road, the service assistant at the dealer, told me it could be related to the gamma switch, last thursday they replaced the faulty switch, no more Transmission warning or blinking D, but yesterday on the Hwy the VSC checking warning showed again, going 90mph on a flat and perfect road, obviously it is not related to the replaced part, any ideas or suggestions are welcome. Thanks.

 

I just noticed I misspelled the warning signal: it is VSA, not VSC, sorry! I had a VW Passat and it has a VSC function, which is the same to my knowledge.