Michigan Compiled Laws, Chapter 257. Motor Vehicles § 257.1402

Sec. 2. If a new motor vehicle has any defect or condition that impairs the use or value of the new motor vehicle to the consumer or which prevents the new motor vehicle from conforming to the manufacturer's express warranty, the manufacturer or a new motor vehicle dealer of that type of motor vehicle shall repair the defect or condition as required under section 3  1 if the consumer initially reported the defect or condition to the manufacturer or the new motor vehicle dealer within 1 of the following time periods, whichever is earlier: