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i have great difficulty turning the ignition on, sometimes it seems to come up against a stop and i have to try many times before it works and other times it works first time. Do i need a new switch barrel (very expensive) or could it be something to do with the solenoid on the brake pedel. Any...

I replaced the battery and now the sunroof don't work, I have been told I need to factory reset it, any ideas how its done.