(a) Before beginning repair work on a product for a customer, an authorized dealer shall provide to the customer a written estimate listing the specific parts, labor, and cost of the repairs.
(b) If additional repairs are determined to be necessary after the service employees begin repairing the product, the authorized dealer shall contact the customer and receive permission to do additional repairs not covered in the written estimate.
(c) An authorized dealer shall post in a conspicuous place for service customers to view all charges for diagnostics, storage, and other incidentals not associated with the actual repair of a product.