Consumer complaints about DexCool in GM Engines

Consumer complaints about DexCool in GM Engines: "At this point, I have a Blazer that overheats, doesn't have any heater, and will no doubt have other problems before I can get rid of it. The dealer and GM want me to pay over a thousand dollars to fix a problem that is apparently inherent in their design. And the solution that I've been given isn't guaranteed to fix all the problems."