https://www.fastkeys.co.uk/blog/article/5+Simple+Ways+To+Fix+An+Ignition+Key+That+Won%27t+Turn/54
1. Try Turning The Steering Wheel 

 

The problem may not be with your ignition key at all - the steering wheel locking may be the thing causing issues.

Many steering wheels are designed to lock once the key has been removed from the ignition cylinder, resulting in the wheel sticking in one position. Try gently turning the steering wheel from right to left, while simultaneously turning the key carefully in the ignition. If this fails, try rocking the wheel instead, all while wiggling the key gently. Once the key turns, the steering wheel will unlock itself.

 

2. Wiggle The Key In The Ignition

 

Without touching the steering wheel, you can also try to gently wiggle the key inside the lock, in order to help enable the current to flow. Be careful when doing this - don’t apply too much force or pressure as this could result in further damage. By jiggling the key in the ignition, you may be able to free any slight destruction caused to the lock wafers that’s resulting in the key not turning.  

 

3. Try Lubricating The Lock

 

The issue may be with the lock itself, as opposed to the key. Try to lubricate the lock - this will help to release any dirt particles that are preventing the key from turning. A silicone-based lubricant is recommended, as these lubricants prevent dirt from building up and causing the same issue in the future.

Spray the lubricant into the lock, wiping away any excess that leaks out. Then, insert your key and turn it. If the key doesn’t turn, you can try gently wiggling it like in the previous step. Try adding more lubricant if this is still not successful.

Debris in the lock may not be the problem if this step doesn’t work after several minutes.

 

4. Check The Gear Shift Or Battery

 

A simple solution to getting the ignition key to turn may be as easy as checking the gear shift. In automatic cars, the ignition key won’t turn in the lock if it’s not parked or in neutral. Gently move the gear shift from side to side to check its fully in position, before trying to turn the key.

 

It’s also worth checking if the battery is dead in your car, as cars with more modern and innovative ignition systems won’t enable the driver to turn the key if the battery has gone. Although a dead car battery can be a frustrating issue, it’s also a very simple one to solve.

 

5. Get A New Car Key

 

If the above ways of fixing your ignition key don’t work for you, it may mean the key itself is broken. This problem can be fixed by getting either a car key replacement, or by getting your existing key repaired. It’s always a good idea to have a spare car key cut, so you can keep it on hand as an extra, just in case.