There are three main factors to consider when determining why the ignition key refuses to turn:
1. Components
The method of repair depends on what you are dealing with:
Steering wheel: Most vehicles lock the steering wheel when the key is removed from the ignition. It’s why the steering wheel gets stuck, which means your car will not budge.
Gear selector: It is possible that you have a car that does not allow movement when it is in park or neutral.
Battery: Another component that affects whether or not the ignition will turn is the car battery. The vehicle will not move, and the key won’t turn if the battery is dead.

2. Keys
It could be bent, worn out, or it’s not the right key for your car.

3. Ignition Lock Cylinder
Check that there are no obstructions and stuck springs. These two leading causes can stop the key from turning.

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