2007 Buick Lucerne V8 Front Wheel Drive Automatic 15000 miles
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my mirror assembly became loose and it moves back and forth is there a way to tighten the mirror head assembly
its a remote mirror thanks for any info. jake

A 2007 with only 15000 miles should be covered under the factory warranty. You should take it to the dealer to be repaired. It shouldn't cost you anything.