Okay, so my 04 GMC Yukon SLT's windshield wipers have a built in computer (stock) that makes the wipers automatically turn on when there is so much of any precipitation on the windshield, but my problem is when i wanna just clear a lil rain off the windshield while im driving i just flip it so it should wipe only once yet when i do this 9 times out of 10 it will just keep going until i turn the truck off and even then it (the truck) has to sit awhile or it will start doing it again when i start the truck up... so any suggestions or fixes? Plz i really need this fixed and if i can i would like to get it fixed without having to go to a repair shop where they will try to find a million and 1 more things wrong with my truck so i really need some help!