You probably never imagined that you could save money by sitting in traffic. However, that's where Toyota's Automatic Start and Stop features come in handy. This innovative system, which is found on select Toyota vehicles, turns the engine off when full power is not required. This saves you money on fuel and helps lower the car's emissions. The system is designed to cut off power to the engine when you are stopped and resume power when the vehicle starts moving again. Another advantage of the Auto Start and Stop function is that you can turn off the system when you want to.