BUICK\GMC\SATURN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SUNROOF WATER LEAK; INSTALL DRAIN TUBE EXTENSIONS. IF CONDITION WERE TO OCCUR, WATER MAY ENTER THE INTERIOR OF THE VEHICLE AND DAMPEN THE CARPET, UPHOLSTERY, AND OTHER INTERIOR COMPONENTS. CSC LETTER WAS RECEIVED. *PE
