OK... I will agree with others here. DO NOT take this car to a dealer for repair as they have no clue. Let it sit where it is and buy a new RCM on Amazon that will be delivered in a few days and replace the existing one with the new one and see if these problems all vanish. $149 from what I am seeing and it is plug and play. If that fixes the problem you then send your failed RCM to a member here who can refurbish it and you keep it as a spare in the car all the time. Even if this doesn't fix the problem you will have a spare RCM in the car that may as well be a "must have" on-hand with these cars. This is the 1st thing I would do and see if it fixes it before ya start getting crazy with things... You're gonna want a spare RCM with you all the time anyway.