Peugot 406 the key is in ignition switch on and will not switch of or come out?

If the key in your Peugeot 406 is stuck in the ignition and won't turn off or come out, it could be due to several issues. Common causes include a faulty ignition switch, a problem with the steering lock mechanism, or an issue with the gear shift not being in the correct position (usually 'Park' for automatics). Try gently wiggling the steering wheel and shifting the gear lever while turning the key. If the problem persists, it may be best to consult a mechanic for further diagnosis and resolution.