I haven't seen any valid news sources that proclaim the existence of a "no-go" zone, such as in Dearborn. In fact, here is a clearly Christian conservative website who repudiates such claims:
https://fellowshipoftheminds.com/2013/10/30/news-of-city-of-dearborn-going-sharia-is-a-hoax/
Now, are there neighborhoods one probably should not venture it into, whether at certain times of the day, or at all, and depending on one's skin color, dress, or culture? Yeah, but that's not quite the same thing.
Reminds me of the time my wife's sister-in-law, who is black, thought it would be a good idea to drop me (white) off in Compton after midnight, so I could put some gas in my rental car (down to "E"), armed with only a fifty-dollar bill, at a dimly-lit gas station where the only people visible inside or out were four guys hanging out by the gas pump.
I said a prayer for me wife and two-year old in the car, got out of the car and put on my three-smile, asked which one was the proprietor, and said I needed to put ten bucks worth in the car and that I needed change. After some long hard stares, one of them took my money, went inside, brought me back the correct change, and then there were some more long hard stares as I very deliberately took my time opening the gas tank, humming every Godz tune I could think of. Nobody spoke a word, just the stares.
I guess I was taking too long pumping the gas, because the wife's SIL drove up, screamed at me to quit wasting time and get out of there before I got us all killed.
An interesting experience, but I wouldn't want to push my luck and try a second time. The SIL still cracks up whenever I see her.