What happens if you turn the ignition to the lock position while driving in a vehicle with a steering wheel interlock?

When you turn the ignition to the lock position while driving in a vehicle equipped with a steering wheel interlock, the steering wheel locks. This feature is designed to prevent the driver from inadvertently turning the ignition to the lock position while the vehicle is in motion. Locking the steering wheel not only makes it difficult to steer the vehicle but can also significantly increase the risk of losing control, leading to a potentially dangerous situation. Therefore, the design of the steering wheel interlock aims to ensure that drivers maintain control of the vehicle by preventing such actions while driving.

In contrast, the other options do not accurately reflect the effects of turning the ignition to the lock position while driving. The engine stalling or the headlights turning off are unrelated outcomes in this scenario, as the lock position does not directly correlate with those functions, while the steering wheel remaining unlocked contradicts the safety purpose of the interlock system.