You should always think about what would you do in case your rental car breaks down. It will be very unpleasand for yourself and also for your passengers if your car breaks down in the middle of nowhere. It is even more frustating if you don't know what to do in such a situation so keep reading this post and try to remember it in case of emergency. The first big important step is to keep your calm. This is useful in everyday life but especially in this situation. If your car breaks down, panicking can only make things worse so try to focus your mind on thinking what should you do next. If you have some experience in engineering, maybe try to fix it by yourself but if you don't, you should stay away from it and let the experts do their job because you may make things worse. Calling a mechanic or the insurrance company will give you directions on what you should do next.
If the car is stopped, there is no more thing to be worried about. But just be focused on what you have to do because another accident that could happen is that there could be fog outside and the people in other cars may see you when it's too late, especially if you forget to turn on the hazard lights.
If you notice that the car is not working properly, take it to the edges of the road so you won't end up with a broken car in the middle of a busy road. once you do that, turn on your hazard lights so that the other drivers can see you so you could avoid another accident. This way you can also warn other drivers that your car has something broken and maybe someone will stop and help you with whatever they have but if the problem is not that big like a flat tire, you can always fix it because if you got the license to drive, you are supposed to know how to fix it. You can also try to push your car or let it go down the hill if the battery is out of power.
If there is no smoke or fire, you can stay in the car and figure out what you should do next depending on your location and what devices and other stuff that may help you, you have in your car. Probably the most important thing you should have on yourself is a mobile phone so you could get in contact with mechanics or your family to announce you will be late for dinner or a meeting. Another aspect of this thing is to always have in your contacts some numbers of toll truck company, car rental agency which are the first ones you should announce that you got in trouble. Having multiple numbers of different companies is a plus and some other numbers of other kind of companies you think will be helpful are useful as well.