I think when you put it in reverse the auto dimming mirror is disabled.Thats the way it worked in my 95 buick riviera.
H3 gray adventure ,sunroof, steps ,roof rack ,smokers package ,window vents, sunroof visor, hard spare tire cover, h3 valve caps ,mudflaps and K&N filter 3,000+ miles
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H3 gray adventure,brushguard,hood handles,sunroof,steps,crossbows,smokers package,window/sunroof visor,Airbrushed spare tire cover,mudflaps,K&N filter,SS Hummer insert,Hummer rubber mats,cargo rubber mat + shade,12 volt airhorn,eclipse nav/dvd/rear camera/mini remote,autostart,12 volt fridge,high beam garage remote,underhood air compressor, taillight bezels ,clinometer ,trailer brake and hitch.
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