I've been having problems with my 18 Denali for a while. Fairly certain I have a lemon but that's another story. I took the truck in for service a couple of months ago and GM tech verified the Nav unit was flaky. Two month wait for a replacement warranty part (Radio Unit) and I finally get a call to bring the truck in for service appointment.10:00 AM on Tuesday. I know the book time says 5 hours so Expect a call at the end of the day. Well, I got a call at 1:00 PM telling me my truck was ready. First clue something was wrong. I then picked up my truck and noticed all my radio stations, Bluetooth connections, and configurations persisted. There was a screen protector over the screen...That was crooked. Anyway I just looked at my Sirius radio ID on my emailed maintenance report and its still the same. Starting to seriously thing the tech didn't change the unit and BSed his way through the work. My questions are:
1. If the head unit was replaced should I retain my settings?
2. Is the Sirius module separate of the head unit?
3. How can I check my ID numbers on my head unit. Any way to see what was initially installed on my truck?
Thanks!
