Just thought I'd share. Put the new vcim in my 08 denali a few weeks back and of course the hands free works great. I did noticed i had a green onstar light, so I called in and they said Hi Mr so and so, I said no this is ......... and they said where happy you decide to buy this used 2010 tahoe, lets update your account. So we updated the account and they said it was already paid through August and they gave me another 3 months untill November. So today I went online a registered and downloaded the remotelink app to my iphone and after getting it all set up...works great! Can start the truck, unlock, lock and see all the vitals of the truck from my iphone. Of course they think its a 2010 tahoe but other than that, couldn't be happier. I think I lucked out cause it had an active account. And its the newer model vcim part number 20829984. Its actually a pretty cool app.