What is the procedure to reset the Inertia Switch on 1993 Buick LeSabre?

I am asking this for a friend that knows that is the problem but has never run into it before. Can you help? God bless you and thanks in advance.What is the procedure to reset the Inertia Switch on 1993 Buick LeSabre?i dont believe that buick ever used one, but to make sure that we are talking about the same thing what is the situation?