Owner notification:owner notification will begin during december 1996.note:owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact buick at 1-800-521-7300, cadillac at 1-800-458-8006, or chevrolet at 1-800-222-1020. Also contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.