1. Try jiggling the key. Try turning the key clockwise and counterclockwise, and gently shaking it up and down while applying a slight amount of pressure. This can help dislodge any dirt or debris that may be caught under the key.
2. Check the transmission shift lever. Ensure the vehicle's transmission shift lever is in the "Park" position for automatic vehicles or the fully released position for manual vehicles. Sometimes the key will not turn if the shift lever is not in the proper position.
3. Insert and remove another key. If you have a spare key for the vehicle, try inserting it into the ignition and turning it. Sometimes a different key can work even if the original key seems stuck.
4. Check the steering wheel. Ensure the steering wheel is not locked. Turn the steering wheel slightly left and right while trying to turn the key.
5. Use a lubricant. Spray some lubricant, such as WD-40 or a graphite-based lubricant, into the ignition switch and try again. Be sure to insert the straw applicator as far into the lock as possible.
6. Contact a professional. If the key is still stuck after trying these steps, it is recommended that you contact a qualified automotive locksmith or a trusted mechanic who can assist you with removing the stuck key without causing any damage to the ignition switch or surrounding components.
