How do you unlock a locked steering wheel on a Opel vectra?

To unlock a locked steering wheel on an Opel Vectra, insert the ignition key into the ignition switch and turn it to the "on" position while simultaneously turning the steering wheel left and right. This action helps to relieve tension on the steering lock mechanism. If the wheel doesn't unlock, gently wiggle the steering wheel while turning the key, as this can sometimes free the lock. If the problem persists, there may be an issue with the ignition system that requires professional assistance.