My vehicle did NOT come with OnStar from the factory, but the wiring is still there, and there is a green plug under the passenger seat, ready to be plugged into the OnStar module.
I believe GM built all TBs as OnStar-capable from a wiring standpoint, although not all got the module.
I believe GM built all TBs as OnStar-capable from a wiring standpoint, although not all got the module.
