Dealers will inspect the vehicle for missing welds. If missing welds are found, GM will exchange the vehicle for an equivalent vehicle or provide a refund of the purchase price. Owner notification began October 4, 2002. 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 Chevrolet at 1-800-222-1020 or GMC at 1-800-462-8782.