2007 Envoy; Various warning lights coming on when I turn AC blower on. It does not work except high speed. Any suggestions?
Various warning lights come on mostly when I turn on the AC blower speed control. The blower does operate except on high speed. At first I could turn car off and then start engine and the light would clear and the AC work but now that doesn't work.
ThomasY: Problem solved. Replaced ignition switch. Had a bad set of contacts. Local garage found problem and replaced switch. OK for several months now.
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