The Federal Trade Commission alleges that GM and OnStar — GM’s subscription-based in-vehicle safety and security system — collected, used, and sold drivers’ precise geolocation data and driving behavior information from millions of vehicles without adequately notifying consumers and obtaining their consent.

The FTC has reached a proposed settlement with GM, prohibiting the automaker from sharing customer geolocation and driving behavior data.

U.S. automaker General Motors and its subsidiary OnStar agreed not to disclose sensitive vehicle geolocation and driver behavior data to consumer reporting agencies for five years, the U.S. Federal Trade Commission said on Thursday.