So all that time I spent warning people about OnStar seems to have been completely justified.
OnStar is apparently hoping to create a new revenue stream by collecting data about the movements of OnStar-equipped cars. Obviously, this data set will be more comprehensive—and, therefore, more lucrative—if it includes data from former OnStar subscribers as well as current ones. In an announcement e-mailed to subscribers earlier this month, the company said that, starting December 1, it would continue collecting data from subscribers even after they cancel their service. OnStar also said it reserved the right to sell aggregated and anonymized data to third parties.
Whoever somehow assumed that a big company with the capability of knowing where you are at all times wouldn't abuse that power was pretty short-sighted. Sorry.