although its a BMW Z4 [wifes] it has the feature of turn and hold key ....the top does its thing [up or down] the windows go up or down [depending on what you want the system to do] i,ll guess it has a controll module for this function and yours is getting a signal [wrongly] to take this action. does it do it if you go over a bump/turns etc. you could try discoing the door electrics and ride around or find [if app] the controll module and tap on it etc. the beemers inside lights come on when the system is working
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