Car key broke off in door how do you fix the lock?

If your car key broke off in the door lock, start by carefully removing the broken piece. Use needle-nose pliers or a key extractor tool to pull it out without pushing it further in. Avoid using the lock until the broken key is removed. Once out, test the lock with a spare key. If the lock feels stiff or damaged, apply lubricant or call a locksmith to inspect it. For deeper damage or if extraction fails, professional repair or replacement of the lock cylinder may be necessary. Acting quickly can prevent further issues and keep your vehicle secure.