[CholeraJoe]

Many of the higher end GM vehicles come with an On-Star device as standard equipment. You get emergency service free for a few months and then select what level of service you want thereafter. I just selected the basic emergency service - airbag alert, theft tracking, locked doors, etc.

[stuartcr]

OK, thanks, I thought that if it was an option, and someone didn't want it, they could opt to not buy it. I see now that it could be used whether the service is paid for or not, unless the device was disabled. I would think that detaching the antenna would work, or the power cord.