Use long, thin needle nose pliers to spread the key opening. Insert the tip of the pliers into the keyhole and then open them to spread the keyhole opening. There is no need to do this unless the broken piece of key is stuck, as it can damage your ignition lock/keyhole. Opening the keyhole will provide a clear path for removing the piece.
How do you get a key out that is broken in the ignition?
Use super glue, melted wax, or putty on your tool's tip, latch onto the key piece with your pliers and pull the key out. If using super glue, wait for the glue to set first before pulling the key out.
What happens when your key breaks in your ignition?
After many years of use, your car key may break off in the lock. When this happens, it renders the lock unusable until you can get the broken piece out. If your car was already locked when the key broke, you will not be able to open it, and you'll need a new key as well.
Can a locksmith get a broken key out of the ignition?
If you don't have the right tools on hand, the best thing to do is to call for a locksmith. They'll be able to extract your broken key and make a duplicate key for you on-the-spot. Once you get the broken part out of the lock cylinder, a locksmith can make a duplicate even if the key is in two pieces.