I purchased an 07 SUT several months ago as a total and have been restoring it. I am almost done and am replacing dash components. My question is when the key is on and the engine is running should the front Onstar panel be lit up like the a/c module? Mine is completely dark. I need to know if this is another component I need to replace to make everything original. Thanks for the help!

 

Did you check the fuses? A lot of folks pull the fuses on the Onstar units.

 

Thanks for the info but it was a bad module. I replaced it and it's good now. Thank you!