How do you know JK ?
Sorry....couldn't resist it
The defroster wouldn't work on my Dakota and I never noticed since I lived on NC. Well..
A road trip back home to MA I got swept in a blizzard and long story short I was allover the road (which prompted my switch to BFG MT) and my windshield was a frozen sheet of glass. So I'm crawling through CT at insanelt slow speeds just limping home, hand out the windshield scraping a vision hole with a credit card before I get crushed by a plow....
Made it home alright with only minor damage and took my truck to the local dealership....
Let me tell you. They could hardlt figure out what was "wrong" then when I got it back they tried to con me that it was "kinda fixed" and they didn't know what happened but it "defrosts now" but it stopped heating the feet and pedals and would require a longer look. Fortunately I had a hot date and needed my truck (the date didn't work out)
Well... the extra $500 they wanted to charge me to "diagnose and solve" the heating issue was a scam... everything worked just fine. Idk why the defroster blower malfunctioned but it waa a ok. No big deal and my foot heat blower was just fine too.
Bottom line this magical mystery problem could be a number og things and the service center at the dealership will take this opportunity to bend you over if you're not wise to their tricks!
Sent from my phone while I should probably be getting work done