Our 05 Uplander's rear power sliding door alarm will go off and no matter how well we shut the door it won't stop! After about a day or so it stops and works fine! This is even on manual! Tonight it decided to open itself at 45 mph on the highway and when I shut it the alarm started and hasn't stopped yet! Any ideas on this? We quit using it after it stopped last time until it opened itself tonight and now the nightmare continues! How can we shut that thing up? Our son now knows why I insist on seat belts even if it wasn't a law!!! I am sick of this thing! And can now tell my husband a "Chevy Man" that my old "only a Nissan rule" may not be so bad after all!