I HAVE A 2010 CHEVROLET TRAVERSE LT.WITH ELETRICAL PROBLEMS WITH DASHBOARD LIGHTS GOING DIM ,WINDOW SWITCH NOT WORKING ON DRIVERSIDE, BACKUP PARKING BEEPER,AND RADIO NOT WORKING .

Having same issue and what I have found is that it's more than likely the harness between door if you have corrosion on the male pins get electrical cleaner and spray it but Lord knows don't do what I did and try to rub it off cuz it ended up breaking the pins and then I had to go to the junkyard and butcher another harness out so I can get the pins out of it and try to replace in mine and it's such a tight spot you'd have to take the e-brake and everything out and pull the carpet back and then I don't know if you could still get to it good enough I took an angle grinder and cut right there where the harness was and pulled the metal back so I can get the harness to come out that way and still it was tight working area but I'm still having an issue I got some stuff to start working again but still can't get my window to go up and down and I'm pretty sure I have a broken wire in the female side of the harness on the door part I wish you the best of luck if you find out anything else message me back and let me know what you find out but I do know this if you take your door switch out the black wire and the blue wire they're diagonally across from each other on the little the plug that goes into the window switch you can jump it with a hot and ground and either get it to roll up or cross it back and put the ground with the hot and Hot with the ground and it'll roll it down they just crossed from each other when hot is negative and negative is hot it'll go up and when negative is Hot and Hot is negative it'll go down it's freaking confusing what it is but I figured out how to get my window up and down for the meantime if anything I'm going to use toggle switch cuz that wiring just above my pay grade