The body control module has gone out on my 2000 Buick Park Ave. Will I be able to replace this myself or do I need to have a mechanic replace this for me?
If you can locate the module and obtain a replacement, you can do it yourself. Sometimes these modules are mounted in really diabolical locations.
A repair manual, such as Haynes, might help you locate the module you are looking for.
You should be able to do it but some models require programming extra options in. Before replacing it I would make absolutely sure that it is bad and something else really isn’t causing the problem. These boxes can go bad but most of the time it is something external to the box that causes the trouble.