If you unplug the rain sensor mounted on your windshield (behind/underneath rear view mirror) the wiper switch defaults to standard settings. I'm currently trying to figure out why my 13 EL limited whistles when the fan is on the highest setting lol but somehow the turning on the recirculation...
I have this exact problem on my '13 EL Limited (dual zone front, and rear controls). The last (highest) two fan speed settings cause a whistle and selecting recirculation fixes it. I bought a blend door but not sure which would likely fix this issue. Will report back if I have any luck or find...
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