I'm not sure if it's the motor...but I have the problem where I can move the rear spoiler once ( the front one's stick at down position) and doens't do it again until I pull the key out and put it back in.....I posted a message about this before, and someone told me they replaced the front motor and it worked....since the front one and the back one are connected together, the computer thinks the whole thing's messed up once it detected the front one is bad....well at least that's what I heard...so yeah...