Right, but… what does it have to do with Jeeps showing in-car advertisements?

I don’t understand how this is related to the Streisand Effect. The Streisand Effect is when you try to suppress unflattering info about yourself, and in the process you call attention to it, so now everyone knows. But we didn’t learn about this through Jeep trying to suppress the info, we just learned about it from people who saw the ads.