My 2008 Cadillac CTS has heated washer fluid - factory equipped. Many other GM vehicles had it as well.
BUT! They issued a recall due to a fire risk on all GM models equipped. The supplier went bankrupt so no fix could be made so GM offered a measily $100 cash payment to allow dealers to disable it. I refused because the system is so nice and I have insurance. Never heard of a single fire happening, was just a design risk I guess.
Way back when, my grandmother had leased a '08 DTS (down to the landau top and chrome wheel's w/vouges)
It was Gold Mist over Miami beige leather
I remember them removing the washer fluid and cutting her a check
If you want my opinion, I'd do this
-Get the recall done and get a check
-Replace it with the new and improved safer yet hotter unit
-Make $20~ in the process
http://www.alphathermusa.com/heatedwash-AT-37GM.html