vrdublu Posted February 8, 2017 Report Share Posted February 8, 2017 We had some freezing rain today and noticed the heated mirrors were doing nothing. Rear defroster works fine but mirrors frozen solid. Any ideas? Quote Link to comment Share on other sites More sharing options...
omar302 Posted February 8, 2017 Report Share Posted February 8, 2017 1st, make sure your vehicle is actually equipped with heated mirrors. If it does, check fuse# 50 in the engine compartment fuse panel. It is a 15A fuse only for the heated mirrors as per the owners manual. Quote Link to comment Share on other sites More sharing options...
vrdublu Posted February 8, 2017 Author Report Share Posted February 8, 2017 Thx will take a look. Quote Link to comment Share on other sites More sharing options...
vrdublu Posted February 8, 2017 Author Report Share Posted February 8, 2017 fuse is fine, any other ideas? Quote Link to comment Share on other sites More sharing options...
omar302 Posted February 9, 2017 Report Share Posted February 9, 2017 Maybe they are working, only not warm enough for the freezing your getting. When there is no ice on them, feel them for heat after a while from turning the rear defrost on. An infrared thermometer would come handy to check. Do the mirrors have the heated mirror symbols on them? Quote Link to comment Share on other sites More sharing options...
vrdublu Posted February 10, 2017 Author Report Share Posted February 10, 2017 Yes they are heated. They have a symbol. I'll check with an ir gun. Quote Link to comment Share on other sites More sharing options...
Burrcold Posted February 10, 2017 Report Share Posted February 10, 2017 All Canadian Edge's have heated mirrors. Quote Link to comment Share on other sites More sharing options...
vrdublu Posted February 13, 2017 Author Report Share Posted February 13, 2017 The glass on the mirrors doesn't seem to get warm at all. TBH I don't even remember if they worked before as it's not something I would check regularly. Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted February 22, 2017 Report Share Posted February 22, 2017 I may be off base as I only have the schematic and manuals for 2009, 2010, but I believe it would be similar in yours. Power comes from fuse #45 in the Battery Junction Box (BJB). It powers the heated mirror relay. As your rear window is heating ok, we can assume this fuse is good. The power through the relay is controlled from fuse #28 in the Battery Junction Box (commonly called the fuse box in the engine compartment). -Start by checking fuse #28 (refer to your owners manual to make certain that this is still the correct fuse). -If it's ok (verify by replacing with an identical fuse known to be good) then it really comes down to the relay or wiring. I would guess the relay before the wiring, unless your or someone else has messed with the wiring. (In my 09 MKX, the relay is #29 in the BJB.) 1 Quote Link to comment Share on other sites More sharing options...
vrdublu Posted February 24, 2017 Author Report Share Posted February 24, 2017 Thx for the info, I'll check fuse #28 and get back with the verdict. Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted February 24, 2017 Report Share Posted February 24, 2017 (edited) Remember that fuse 28 is the correct fuse for 2009 & 2010 and may be different on yours. Edited February 24, 2017 by enigma-2 Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted February 24, 2017 Report Share Posted February 24, 2017 Fuse 50 in the underhood BJB is for Heated Mirrors, so that is what I would check first. Fuse 26 if the rear window defroster is not working. Quote Link to comment Share on other sites More sharing options...
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