Chrysler 2004 300M - Manual (Page 12)

Ignition Key Removal
Place the shift lever in Park and make sure that the shift
knob push-button (vehicles with floor shift) is in the out
position.
Turn the key to the Lock position and remove the key.
NOTE: If you try to remove the key before you place
the lever in Park, the key may become trapped tempo-
rarily in the key cylinder. If this occurs, turn the key
clockwise slightly, then remove the key as described.
Key-In-Ignition Reminder
Opening the driver’s door when the key is in the ignition
and is in the OFF, LOCK, or ACC position, sounds a
signal to remind you to remove the key.
12 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE