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he pulled the emergency release
there is a process that now needs to be carried out to re set and re sync the roof. it is tricky and is intended to be carried out by a professional in a workshop setting. you can attempt it at home if you would like
here are the instructions: CLICK HERE and then press "download" to save them to your own computer
Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you. Best wishes with your repairs.