If this works, the key is likely over worn. You should still replace the key as soon as you can before it stops working.
If wiggling the key works, it means the teeth on the key are too worn to properly engage the pins. Replace the key as soon as possible if this works before the key stops working entirely.
You may have to strike the key multiple times in order to flatten it entirely. Avoid using pliers or a vice to straighten the key, as you may bend it too far in the opposite direction and reduce the strength of the key.
If this works, the issue will likely continue to occur until the debris is cleaned out from the ignition cylinder.
You will need to provide sufficient evidence of ownership of the vehicle. If a new key cannot be produced, you will need to purchase a new ignition module with matching key and have it installed.
Be sure the indicator on the shift lever is pointing at the “P” for park. Try taking the vehicle out of park and putting it back in if you can, then turn the key again. Also, some vehicle won’t start unless you have your foot on the brake. [5] X Expert Source Duston MaynesAutomotive Repair Specialist Expert Interview. 10 June 2021.
If the key is damaged, it will have to be replaced. Some keys require programming from the dealership when replaced. Refer to your owner’s manual to check the requirements for your vehicle. Double-check to be sure you’re using the right key, as well. [7] X Expert Source Duston MaynesAutomotive Repair Specialist Expert Interview. 11 June 2021.
Clean any debris or dirt off of the key, then re-insert it and try again. Do not use your keys to open packages or do anything else other than start your vehicle.
When you move the wheel back and forth, you will feel it stop abruptly as it comes into contact with the steering wheel lock. If your wheel was turned slightly without you applying any pressure when you turned the car off, it still may engage the steering wheel lock.
The key will be able to turn freely in the ignition once the steering wheel is unlocked. If the key still fails to turn after the wheel is unlocked, there is another issue.
Do not spray the entire can into the key hole. The extreme cold could result in damage to the ignition cylinder. Wear eye protection when using canned air to clean the key hole to ensure no debris gets into your eyes.
If this works, you may need to replace the ignition cylinder soon as it gets progressively worse.
Just like having a new key cut, you will need to demonstrate sufficient ownership of the vehicle in order to have a new ignition cylinder installed. A new ignition cylinder will likely require replacing your key, even if it wasn’t the issue.
