Dealers will inspect the buckles and, if found to be inoperative, the entire buckle assembly would be replaced. For buckles found to be operative, dealer will replace only the upper buckle cover. The recall began on April 30, 2008. Owners may contact Chevrolet at 1-800-630-2438 or GMC at 1-866-996-9463, or through their website at www.gmownercenter.com>www.gmownercenter.com. note: This campaign is an expansion of a previous recall (please see 05V558).