There are many hazards that can make tires less effective and more of a danger to drivers and passengers. Flat tires can be caused by a variety of factors including rough roads/potholes, tire punctures (from nails/glass/screws), a damaged valve system, worn out tires, and even hot weather. When a flat tire occurs, it is important to get it repaired as soon as possible. Driving on a flat tire can be dangerous, cause irrevocable damage to the tire and result in rim damage. Because flat tires are dangerous to use, it is advised that motorists only drive on them in extreme circumstances, such as when they need to reach safety from a busy highway. Signs that you may want to come in for a tire evaluation/repair include your TPMS (Tire Pressure Monitoring System) light is on, your tire looks flat, you hit something on the road, your steering wheeling is pulling to one side or you hear thumping/vibration noises. The sooner you bring in a lightly to moderately damaged tire for repair, the more likely it can be repaired and the less it will cost.