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Originally Posted by fourfourto
OnStar goes through factory head unit.
Red lights on probobly because it is not functional.
You need to get a OnStar module hooked up to get it working.
I like the peace of mind having OnStar.
The phone comes in handy also  |
if you have switched out the radio you need a module.
the red signifies that there is a problem with the onstar system. it can be numerous things, ranging microphone being inoperative to losing communication with vehicle computers.
try pressing the blue button and see if someone answers, if they do, ask them for help, they'll do a remote diagnostic.
if not take to dealer. could be cuzed by something other than onstar and may be a problem.