2. Locate the broken key pieces. If you can, see if you can fish out the broken pieces of the key with a pair of tweezers or a needle. Be careful not to damage the ignition cylinder.
3. Try to remove the key with a key extractor. A key extractor is a small tool that can be inserted into the ignition cylinder to grab and remove the broken key. You can purchase a key extractor at most hardware stores or online.
4. Use a bump key. A bump key is a key that has been modified so that it can bypass the tumbler pins in a lock. This can be a tricky method, but it may work if you're unable to remove the broken key with a key extractor.
5. Call a locksmith. If you're unsuccessful in removing the broken key yourself, you may need to call a locksmith. A locksmith will have the tools and experience to safely remove the key without damaging the ignition cylinder.
6. Get a replacement key. Once the broken key has been removed, you'll need to get a replacement key. You can do this by going to a locksmith or by ordering a replacement key from an auto dealer or online.
Here are some additional tips that may be helpful:
* If the broken key is in the "on" position, you may be able to start the car by turning the ignition switch to the "off" position and then back to the "on" position.
* If the key is in the "off" or "accessory" position, try turning the ignition switch to the "start" position and then back to the "on" position. This may release the broken key.
* If the broken key is obstructing the ignition cylinder, you may need to use a penetrating lubricant to loosen it up. Spray the lubricant into the ignition cylinder and let it sit for a few minutes before trying to remove the key.