Mechanical issues:
* Bent key: Try to gently straighten the key with your fingers or a key copying machine (with caution). Avoid applying too much force to prevent further damage.
* Worn key teeth: Insert another key that fits the ignition to test if the problem lies with the key or the ignition. If the second key fits well, it may be time for a key replacement.
* Stuck ignition cylinder: Gently insert the key and wiggle it back and forth while applying light pressure. Use a lubricant like graphite powder or WD-40 (sparingly) to enhance smoothness and reduce friction.
Electronic issues:
* Faulty ignition switch: If all keys have trouble turning the ignition, this may be the problem. Replacing the ignition switch may be necessary.
* Anti-theft system: Ensure the anti-theft device is functioning properly by looking for a blinking light indicator on the dashboard. Refer to your vehicle manual for specific instructions on disarming the anti-theft system.
* Weak battery: A weak or dead battery can impact electrical components, including the key mechanism. Try starting your vehicle using jumper cables or a jump starter. If successful, replace the battery promptly.
Other factors:
* Faulty key fob: If your vehicle uses keyless entry, try using the physical key directly or replacing the battery in the key fob to see if that resolves the issue.
* Physical obstruction: Check the keyhole for debris or obstructions that could be preventing the key from turning smoothly.
