There are quite a few warning lights on the dashboard. But apart from the handbrake, the ajar door signs, low fuel indicator and the seatbelt sign, rarely do anything else turn on. And you wish you never see any of the others. Other most important dashboard signs are the engine malfunction warning, low battery alert, coolant temperature warning, oil change reminder, etc. All these warnings indicate that you take your car to a shop immediately. But there are also some less significant warning lights like the low washer fluid lights.