its a bad conection inside the shifter it self,, it needs to be cleand or replaced,, its deff not the lights, over time the iner parts of the shifter get worn out, nothing u can do about that,, i have the same thing, it comes and goes , but now it fine,, if u trying to save money get some1 who knows wat they r doing and have them open the colomn and clean where the contact is,,, ,,,,,,,,,,,,,,good luck