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rearview temperture display

  1. 2007 Escalade ESV wrong temp display on mirror

    Cadillac Escalade, EXT and ESV Forum - 2007-2014
    My rear view mirror temperature is drastically off it display always about -20. I have changed the mirror itself, ambient temperature sensor which is what everything online says to do. I am stumped due to this I’m unable to use my AC and summer time months are coming up any ideas what else it...