I know that one can now purchase On-Star in an electronics store for use in any kind of car. I know that On-Star can help you find your car if it is stolen and can help you get into your car if you lock your keys inside, but can you tell me whether On-Star can arrange for emergency roadside service if you get stuck out on the highway.
Yes. On-Star will assist you with roadside service if need be, but they may charge you an extra fee for that. If you have roadside service with you car insurance, you should call them first.