2005 CTS windshield wiper randomly turning on and off

Started happening recently windshield wipers seem to have a mind of there own. For the most part they work normal on and off works fine typically when I need to use them but now recently at random times it will just decide it wants to turn on and then won’t turn off for 10-30 minutes then will randomly turn off and work normally again for a bit before deciding to randomly turn on again. Seems like a common issue I’ve read just looking to see what exactly I need to fix. Is it just the motor itself or is it some type of switch? Should I just pull the whole unit out and replace it?? Could I just pull one for pick in pull? Any suggestions appreciated.