Hello all. New member here so please bear with me. 02 Grand Prix GT 45,000miles, kept in heated garage - A couple of months ago the blower only operated on setting 5. After reading other posts, I replaced the blower motor resistor. No issues until now. Symptoms are: back to only working on setting 5, A/C will not work, and rear defrost will not work. Other posts indicate a possible bad ignition switch. Might this be the only problem? Please respond with your sound advice. Thank you for your time....
