What is one key feature of a steering wheel interlock system in vehicles?

A steering wheel interlock system is designed to enhance vehicle safety by preventing the ignition key from being turned to the lock position while the vehicle is in motion. This feature ensures that the driver maintains control of the vehicle and cannot inadvertently disable the steering function while driving. If the ignition could be turned to the lock position, it would prevent the driver from steering the vehicle, potentially leading to a loss of control and an accident.

The interlock system plays a crucial role in promoting safe driving practices, as it discourages behaviors such as turning off the ignition while operating the vehicle. By keeping the ignition engaged, it ensures that the driver can safely navigate and operate the vehicle without interference from the ignition system.