ok guys ,I upgraded my 15 sierra slt to the full boat tow mirrors and all worked beautiful. well i came out of the store the other day and it appeared that someone walked into my pass side mirror .I've tried the reset procedure , and the mirror doesn't seem to want to move. it will move back and forth about a 1/2inch but that is it . I have read about a gear upgrade for the older power folding mirrors,but nothing for the tow mirrors. Any suggestions(other than replacing the whole mirror)?