Greetings! Model 3 Owners Club is expanding! Our new name is Tesla Global Owners Club. Content remains unaffected, just a new logo, name and new domain. You'll just have to login to your existing account and carry on as before. Thank-you for your continued support!
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Same on mine delivered July 17, 2018. Noted at time to service rep. Its actually not a separation per se but a sloppy mirror mount. That trim piece is attached to the mirror assembly. Easy fix is to remove mirror and reseat.