What Are Typical Rmps in First Gear on Automatic Cars Driving Tips How to Change Gears in an Automatic Car How to Change Gears in an Automated Car An automated transmission knows to shift when you're trying to pass another vehicle, going uphill or downhill, or trying to accelerate. However, fifty-fifty though your transmission is automatic, you lot however have some control over when it shifts. By varying your driving habits and shifting to depression gears during appropriate times, you can increase the power and efficiency of your car. Shif