I have a 2011 Sienna that is experiencing some problems with the driver's side power sliding door closing completely. This problem is happening on an intermittent basis. When it acts up, it will usually close to within about 12 inches of the end and then it will stop. I then have to manually close/open a couple of times (with some difficulty) before it will start working again. I know several people have had problems with these doors, but I haven't seen any threads that have troubleshooting/repair info. If you have any troubleshooting/repair info, please reply. Thanks.