The selection labeled “I” on an automatic transmission is typically an indicator used by the vehicles system for selecting a lower gear range. In vehicles equipped with this feature, it is utilized when increased engine braking or torque multiplication is desired, particularly during downhill descents or when traversing challenging terrain. As an example, engaging this setting while descending a steep grade can help control the vehicle’s speed and reduce the strain on the braking system.
Employing a lower gear ratio provides enhanced control and safety in specific driving conditions. Historically, automatic transmissions relied solely on driver input via the accelerator and brake pedals. The introduction of supplemental gear selections, such as this, offered greater flexibility to drivers, enabling them to optimize the vehicle’s performance and handling in a wider variety of situations. This development reflects a move towards more sophisticated and adaptable automotive technology.
