The steering wheel lock might be under tension when the vehicle is parked.

Turn the steering wheel slightly to free the ignition key.

In order to help reduce vehicle theft, make sure the steering wheel lock is engaged before leaving the vehicle.

WARNING
Never switch off the ignition (turn the ignition key to position 0) or remove the key from the ignition switch while the vehicle is in motion.

This could cause the steering wheel to lock, which would make the vehicle impossible to steer.