Roadside Assistance is the main reason people join AAA and why they renew year after year. Not just for major breakdowns, either. Lock your keys in the car or get a flat and we’ll be there, day or night throughout the U.S. and Canada. If your trouble is a failed battery, AAA Battery Service can test it and offer a tow, jump-start, or replacement at a discounted member price—right then and there—for most makes and models. Your membership covers you, not your vehicle, so you can call whether you are in your own car, a friend’s car, or a rental.