I took my 2015 High Country in for an oil change a...

I took my 2015 High Country in for an oil change and was lied too three times by their service department and when I called to talk to the service department manager I had too leave a message in which he has never returned my call. When they did the oil change they said they topped off all fluids as well as the diesel exhaust fluid. So the next day my diesel exhaust fluid light came on saying that it was about to run out, so when I proceeded to take it back to the dealership and told them that they didn't fill it they said they filled it but didn't reset the sensor. I know there is no sensor to reset but I gave them the benefit of the doubt and called another dealership to confirm if there was a sensor that you had to reset, and as I already suspected I was told by the other Chevy dealership that there are no sensors to reset you just fill it and it resets itself. So since I can't trust them to be an honest dealership on something small as this, I will never go back because I can't trust them on something larger that might go wrong. You won't know if they are telling you the truth or not.