Gents, I've been reading your posts trying to find the possible solution to my problem. Here we go.....I've left my house ( errands to the store)and the tranny shifts hard between 2nd & 3rd. It happens Up shifting and down shifting. This is the catch, when I return home, there are NO hard down or up shifting and none the the issues you are guys are having; like flickering lights or slippage. This only happen on the first drive of the day. FYI. I had the transmission serviced last week. They cleaned the screen , flushed the system and retop the fluids. I revisited the shop today and talked to the manger about my problem. He insured me that the service they did was text book. He even said that it had been serviced not to long ago and the insides look great. Any idea?