Continuously variable transmissions or CVTs offer a seamless driving experience by using a belt and pulley system to provide an infinite range of gear ratios. Unlike traditional automatic transmissions that have a fixed number of cure ratios, cbts can adjust to any situation without the noticeable gear shifts, allowing the engine to operate at its most efficient RPM for a range of vehicle speeds. While cbts provide some unique benefits to drivers who don't enjoy the sound or sensation of their vehicle changing gears, they also provide some unique challenges to your DIFM customers who work on them. For example, if a transmission doesn't have any gears, how do you know if it is shifting smoothly or slipping? The answer is to not go on, feel, or compare it to an automatic transmission. The secret is for the technician to trust their scan tool more than the test drive. A CVT transmission has a multitude of sensors inside and on the case.