My power locks, power windows, interior lights and auto radio shut off stopped working. There are no known blown fuses. Is there a module that controls all of these items?
Power Locks/windows Module on 2000 Buick Park Avenue
body control module. all these are controlled by this unit. you could try taking off the battery cable for 10 seconds and re attaching. that will re boot the bcm. if it does not return the functions, take it to a shop and have it checked.