My 2007 has 19K miles. The rubber cover on the hatch opening switch above the license plate was starting to deteriorate, so I decided to replace it. (Is this evidence of Toyota's cost-reduction program? My 2004 with 100K miles shows no evidence of wear on its corresponding switch.) MSRP is $94, I paid $71 plus shipping at Champion Toyota in Houston. Part number is 84905-47010. This assembly includes the hatch opening switch as well as the little black squarish switch that allows you to lock the Smart-equipped Prius. If you need to replace the switch, the job is not difficult. Open the hatch and pull off the black cover. It is held on by 11 blue plastic clips. Grab one corner and pull until it becomes loose, then you can remove the remaining corners. You will have to remove the plastic trim plate that is over the license plate lights. It is held on with four nuts. Use a 10 mm deep socket to remove the nuts. You'll see a wiring harness for the two switches that goes through a rubber moisture seal. Disconnect the wiring harness connector and remove the seal from the hatch hole. Then you can snake the wiring harness through the hole and remove the plastic trim plate. The hatch opening switch is secured with two Phillips self-tapping screws. The lock switch is secured with three Phillips machine screws. Unfortunately, two of the three latter screws refused to budge when using a #2 screwdriver. I ended up drilling out the two screws, then bought replacements at the local hardware store. M4, 10 mm length. The new screws fit my #2 screwdriver tip perfectly. That screwdriver slipped on the old screws, while a #1 screwdriver was too small. (More evidence of cost-cutting?) When replacing the trim plate, be careful to put the top edge of the plate under the rubber gasket between the hatch glass and that plate. Photos: 1. Part number 2. Inside of hatch with cover removed. See the white wiring harness connector in the center of the photo. Disconnect that in preparation for removing the plastic trim plate. 3. One of the four nuts holding the plastic trim plate 4. View of old switch, see the hole in the rubber and the generally nasty and deteriorated condition! The rubber stuck to the trim plate like glue, I had to scrape it off after the switch was removed. 5. Underside of plastic trim plate with the old switches still in place. The hatch opening switch is on the left, while the Smart lock switch is on the right along with the wiring harness tail.