If you're going to do this yourself, you're going to want to do other repairs yourself. You need to get a copy of the manufacturer's service manual. That is good reference material too for determining if you even want to pursue other repairs. Besides pages of detailed instructions, they will have line drawings that my words can't compete with, and there's a section that shows any special tools if they're needed.
Don't waste your money on Haynes or Chilton's manuals for things like this. They don't get into electrical, body mechanical like this, or anything more in-depth than what a basic do-it-yourselfer can handle.
Start by looking for a service manual on eBay. If by some chance you can't find one there, your vehicle is new enough that you should be able to buy a service manual through any GM dealer. At the very nice Chrysler dealership I used to work for, the people in the office had order forms for you to order service manuals yourself for vehicles up to around 15 years old, but if a service adviser overheard what you were up to, they had the owner's blessings to find the proper manual, if they weren't busy with customers, and photocopy the pages you needed. If you're on good terms with the people at a GM dealership, they might do that for you too.
If you still haven't had any luck up to this point, I can try to find the procedure on an online service manual, but I can't copy and paste anything. You really want the pictures to help make sense of the written instructions.
Thursday, May 7th, 2015 AT 6:54 PM