1. This section applies to a consumer credit sale of goods or services and a consumer loan. A consumer is not liable for a deficiency unless the creditor has disposed of repossessed or surrendered goods in good faith and in a commercially reasonable manner.
 2. If the seller repossesses or voluntarily accepts surrender either of goods which were the subject of the sale and in which the seller has a security interest, or of goods which were not the subject of the sale but in which the seller has a security interest to secure a debt arising from a sale of goods or services or a combined sale of goods and services, the seller’s duty to dispose of the collateral is governed by the provisions on disposition of collateral in chapter 554, article 9, part 6.
 3. If a lender takes possession or voluntarily accepts surrender of goods in which the lender has a security interest to secure a debt arising from a consumer loan, the lender’s duty to dispose of the collateral is governed by the provisions on disposition of collateral in chapter 554, article 9, part 6.