How do i track my 17 year old daughter…is there a cheap gps unit that i can put under the car?

Ummm, you never know when things will blow up in your face…..I don’t think you should do this at all. Just because you’re doing something that she may never know about doesn’t mean that it’s right. Your daughter is SEVENTEEN years old. In less than a year, she will be making her own decisions. If she is going to go out and do something, it’s not going to change much by the time she’s 18. If you don’t trust her and want to keep tabs on her, then do it in a way that she knows about. And if you tell her about this little gps idea, she’s gonna be mad. It’s not even very good anyways, not like she can’t ditch the car and go with someone else……why not attach them to the clothes she’s wearing instead?? I’d say that especially being 17 yrs old, she needs some kind of privacy and this is WAY overstepping the boundaries. If you give her no room to make mistakes on her own, she will resent you later, and a lot of lifes lessons have to be made on your own. Let her make a few. Just because she’s your daughter doesn’t mean that you can treat and do with her what you want. And just because it’s legal doesn’t mean it’s right.