I have a 2006 IS 250 (push start) and yesterday when I was arrived home I turned off my car and two seconds later it turned back on again with out touching the button. I turned it off again and it stayed off. At first I thought maybe I didn't hit the button hard enough so I didn't think much about it but it did it again when I went to the grocery store. Today when I went to start my car it acted as though it was going to start but then would shut off. I tried three times until it finally fully started and it drove just fine but then when I went to turn it off it again turned off and then turned back on again two seconds later. Does anyone have any thoughts as to what this could be?

 

Perhaps it will help if you posted in the second gen section.