Hey all,
I´m new to this forum and directly come up with a problem. I used the search already, but was not successful to find the same issue like I have.

At my 2009 Suburban the backdoors can be unlocked, but they both don´t lock. On top the window switches in both backdoors are not working, from driver door it works. The childprotection switch is working like it should as far as i figured out. And on top, both of my loudspeakers in the backdoors are not working, too.

I have a few additional defects as well, like cruise control, but for them I will search independently before.

Maybe someone has an idea?

Thanks for helping.

Best wishes from Germany