Why are my 2019 Chevy Traverse rear speakers not working?

There are several reasons that could cause the rear speakers in a 2019 Chevy Traverse did not work. The first thing that comes to my mind is a blown speaker . This usually happens when there's a power surge or the volume is cranked up too high. In this case the speaker would need to be removed and replaced with a new one. Check with the dealer to find a appropriate replacement. I would suggest going with an aftermarket speaker because You can get better sound quality. Another reason why the speakers could be not working is because the wiring going to it is disconnected or damaged. This could be rather difficult to diagnose and even more difficult to replace.