This is a simple job that does not seem to be covered in the owner's manual, and there is no obvious way of access in the bulb. I used my plastic trim removal tools, so reduce the risk of damage. I carefully probed around until I was sure where the release catch is located - Now you know. The clue is seeing which way the bulb is fitted.    Drivers vanity light.     Inserting tool to feel the catch. Lever to tool to release the catch, popping the light fitting out.