Housing. A component to which the Ignition Switch is mounted to or supported by. A Switch, typically located in the steering column or vehicle dashboard behind the Ignition lock cylinder, used to power on and start the vehicle. Used with a tradition vehicle key. A trim piece which fits around the Ignition Switch. Ignition Lock Housing. Includes: Lock Cylinder Housing. Bezel. hsng. Impulse COUN. Starter Bracket. LOCK. Included with: Ignition Housing.