Michigan Compiled Laws, Chapter 440. Uniform Commercial Code § 440.9201

Sec. 9201. (1) Except as otherwise provided in this act, a security agreement is effective according to its terms between the parties, against purchasers of the collateral, and against creditors.

(2) A transaction subject to this article is subject to any applicable rule of law that establishes a different rule for consumers and to each of the following, as applicable:

(3) In case of conflict between this article and a rule of law, statute, or regulation described in subsection (2), the rule of law, statute, or regulation controls. Failure to comply with a statute or regulation described in subsection (2) has only the effect the statute or regulation specifies.

(4) This article does not validate any rate, charge, agreement, or practice that violates a rule of law, statute, or regulation described in subsection (2), or extend the application of the rule of law, statute, or regulation to a transaction not otherwise subject to it.