C.R.S. § 42-10-104: Affirmative defenses.

(1) It is an affirmative defense to any claim under this article 10 that:

(a) An alleged nonconformity does not substantially impair the safety of or use and market value of a motor vehicle, as applicable; or

(b) A nonconformity is the result of abuse, neglect, or unauthorized modifications or alterations of the motor vehicle by a consumer.