yes. You can replace just the glass or the whole assembly.
Take off the door panel and unbolt the mirror housing
It is because the silvering for the mirror is separating from the glass. Apparently this is a fairly common problem for heated mirrors. You need to replace the glass or whole housing.
go to parts house or yard ( save $100 ) replace entire housing
Call the dealer and tell them that you need the part # for the mirror, and they will give it to you.
$275 from a reputable service department. If the frame isn't damaged you might be able to get a replacement mirror for as little as $25.00. If you have to replace the whole thing it might get ugly.
Remove inside door panel, remove mirror assembly holding bolts, unplug electrical connection and reinstall.
See answer for replacing the driver's side. Same technique applies.
If the outside body of the mirror is okay...and all that is broken is the glass, go to Pep Boys or Autozone. They have replacement mirros that stick to the borken one. There is usually two or three strips of 3M adhesive tape that holds the new mirror against the old mirror. If you are having other problems with yoru mirror yes a do it yourselfer can do it, just open the door, pry off the small triangle at the front of the window inside, undo the nuts holding the mirror on and then there is an electrical connection plug that will need to be disconnected, then pull the mirror away from the body and make sure the electrical connection doesn't fall back down into the body.
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