Grasp the lens cover and depress the upper and lower locking tabs to release.
Gently grasp the bulb, lift the bulb to release tension, then swing the top edge of the bulb away from the connector.
Gently grasp the bulb, connect the lower edge of the bulb onto the lower connector, lift the bulb, then swing the top edge of the bulb onto the upper connector.
Snap the lens cover locking tabs into place.