The only solution is to look for a replacement kit that matches your car at your local auto supply shop or try ordering one online. You'll need to remove the old cylinder from the body of your lock, pop in the new one, and then secure it back into place. If you're lost, follow the instructions on the package you purchased, and in the case when they're not mentioned, you always have youtube tutorials by your hands. However, if you're not very skillful, especially in this domain, reach out to a professional. In my situation, tutorials didn't help, so I called the ones from
https://mylocallocksmithtx.com/ . 10/10 recommend!!
