I have a 2017 Chevrolet Colorado ZR2. After three trips to two dealerships to get rid of a nasty squealing sound from under my truck that happens every time I drive my truck at speeds of 15 to 45 mph. A senior technician at the dealership told me he has see a couple with the same issue and it was a simple seal on the output shaft. The service manager refused to replace the seal because her couldn’t duplicate the noise. It makes the noise daily and is unbearable. I called customer service to get help. It took five days and multiple calls every day to reach the person assigned to my case. When I finally reached her her attitude was cavalier. I begged her to contact the dealership and address my concerns. I asked to speak to someone else since she was unwilling to help and she told me no one was above her and that was that. I loved this truck but now I hate it and and looking into trading it in on a Ford Raptor. This has been the worst customer service experience I have ever had. Chevrolet does not care about its customers. If your looking into a new truck don’t look at a Chevrolet. I have bought two GMC sierras one Colorado and two Pontiac Grand Prix. My wife has both many and my mother have owned nothing but Buick. That is changing thanks to horrible customer service. My family is looking at Ford now.