What to do when a car key snaps in the lock
https://parkedandready.fairmontdigest.com/posts/what-to-do-when-a-car-key-snaps-in-the-lock
When a car key snaps in the lock, your first instinct might be panic, but stay calm. Gently use needle-nose pliers to grip the broken piece—if it's visible, pull straight out. If it's stuck flush, try a thin piece of wire or a broken key extractor tool, inserting it alongside the key to lift it. Spraying lubricant can help loosen things, but avoid forcing it or you'll worsen the jam. Once removed, check the lock for damage and consider having a locksmith make a new key from the extracted piece.