Has anyone had their door release start to malfunction? Mine has become very unreliable; mostly when the door has been locked. Sometimes it opens part way and I have to shut it fully and try again, sometimes nothing happens for several tries. It's definitely been getting worse. If I leave the Roadster unlocked it's generally not a problem. I'm hoping that someone has experienced this and knows what part needs replacing. I'm not mechanically inclined, but it would be great if I could tell my SC what part to order in advance, so they don't have my baby sitting there for who knows how long. TIA!